./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:59:57,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:59:57,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:59:57,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:59:57,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:59:57,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:59:57,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:59:57,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:59:57,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:59:57,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:59:57,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:59:57,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:59:57,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:59:57,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:59:57,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:59:57,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:59:57,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:59:57,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:59:57,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:59:57,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:59:57,952 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:59:57,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:59:57,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:59:57,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:59:57,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:59:57,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:59:57,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:59:57,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:59:57,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:59:57,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:59:57,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:59:57,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:59:57,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:59:57,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:59:57,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:59:57,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:59:57,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:59:57,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:59:57,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:59:57,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:59:57,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:59:57,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:59:57,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:59:57,987 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:59:57,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:59:57,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:59:57,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:59:57,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:59:57,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:59:57,989 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:59:57,989 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:59:57,989 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:59:57,990 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:59:57,990 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:59:57,990 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:59:57,990 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:59:57,990 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:59:57,991 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:59:57,991 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:59:57,991 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:59:57,991 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:59:57,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:59:57,992 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:59:57,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:59:57,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:59:57,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:59:57,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:59:57,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:59:57,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:59:57,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:59:57,993 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:59:57,993 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:59:57,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:59:57,994 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:59:57,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:59:57,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:59:57,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:59:57,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:59:57,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:59:57,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:59:57,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:59:57,995 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:59:57,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:59:57,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:59:57,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:59:57,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:59:57,996 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2022-04-18 18:59:58,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:59:58,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:59:58,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:59:58,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:59:58,183 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:59:58,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i [2022-04-18 18:59:58,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7059a77aa/8fae99d0039c470cb1e560bd7a3616a7/FLAG89fc85f17 [2022-04-18 18:59:58,623 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:59:58,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i [2022-04-18 18:59:58,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7059a77aa/8fae99d0039c470cb1e560bd7a3616a7/FLAG89fc85f17 [2022-04-18 18:59:58,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7059a77aa/8fae99d0039c470cb1e560bd7a3616a7 [2022-04-18 18:59:58,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:59:58,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:59:58,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:59:58,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:59:58,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:59:58,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:59:58" (1/1) ... [2022-04-18 18:59:58,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ac2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:58, skipping insertion in model container [2022-04-18 18:59:58,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:59:58" (1/1) ... [2022-04-18 18:59:58,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:59:58,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:59:58,806 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 18:59:58,978 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-04-18 18:59:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-04-18 18:59:58,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-04-18 18:59:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-04-18 18:59:58,983 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-04-18 18:59:58,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-04-18 18:59:59,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:59:59,005 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:59:59,019 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 18:59:59,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39095,39108] [2022-04-18 18:59:59,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39180,39193] [2022-04-18 18:59:59,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39232,39245] [2022-04-18 18:59:59,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39641,39654] [2022-04-18 18:59:59,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39726,39739] [2022-04-18 18:59:59,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-1.i[39778,39791] [2022-04-18 18:59:59,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:59:59,079 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:59:59,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59 WrapperNode [2022-04-18 18:59:59,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:59:59,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:59:59,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:59:59,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:59:59,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,128 INFO L137 Inliner]: procedures = 225, calls = 43, calls flagged for inlining = 10, calls inlined = 7, statements flattened = 198 [2022-04-18 18:59:59,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:59:59,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:59:59,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:59:59,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:59:59,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:59:59,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:59:59,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:59:59,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:59:59,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (1/1) ... [2022-04-18 18:59:59,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:59:59,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:59:59,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:59:59,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:59:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:59:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:59:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:59:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:59:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:59:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:59:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2022-04-18 18:59:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2022-04-18 18:59:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:59:59,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:59:59,233 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:59:59,323 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:59:59,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:59:59,660 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:59:59,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:59:59,667 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 18:59:59,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:59:59 BoogieIcfgContainer [2022-04-18 18:59:59,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:59:59,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:59:59,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:59:59,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:59:59,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:59:58" (1/3) ... [2022-04-18 18:59:59,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5629b52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:59:59, skipping insertion in model container [2022-04-18 18:59:59,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:59:59" (2/3) ... [2022-04-18 18:59:59,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5629b52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:59:59, skipping insertion in model container [2022-04-18 18:59:59,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:59:59" (3/3) ... [2022-04-18 18:59:59,681 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2022-04-18 18:59:59,688 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:59:59,688 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:59:59,688 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-04-18 18:59:59,688 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:59:59,763 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:59:59,803 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:59:59,810 INFO L340 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 [2022-04-18 18:59:59,810 INFO L341 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-04-18 18:59:59,823 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:59:59,834 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 238 transitions, 484 flow [2022-04-18 18:59:59,835 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 238 transitions, 484 flow [2022-04-18 18:59:59,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 233 places, 238 transitions, 484 flow [2022-04-18 18:59:59,903 INFO L129 PetriNetUnfolder]: 9/237 cut-off events. [2022-04-18 18:59:59,903 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:59:59,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 237 events. 9/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 523 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 180. Up to 2 conditions per place. [2022-04-18 18:59:59,916 INFO L116 LiptonReduction]: Number of co-enabled transitions 16182 [2022-04-18 19:00:07,877 INFO L131 LiptonReduction]: Checked pairs total: 85425 [2022-04-18 19:00:07,877 INFO L133 LiptonReduction]: Total number of compositions: 165 [2022-04-18 19:00:07,883 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 103 transitions, 214 flow [2022-04-18 19:00:07,979 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2196 states, 2139 states have (on average 2.091631603553062) internal successors, (4474), 2195 states have internal predecessors, (4474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 2196 states, 2139 states have (on average 2.091631603553062) internal successors, (4474), 2195 states have internal predecessors, (4474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:07,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 19:00:07,988 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:07,988 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 19:00:07,988 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash 809, now seen corresponding path program 1 times [2022-04-18 19:00:07,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:07,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012852537] [2022-04-18 19:00:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:08,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:08,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:08,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012852537] [2022-04-18 19:00:08,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012852537] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:08,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:08,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 19:00:08,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295248689] [2022-04-18 19:00:08,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:08,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:00:08,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:08,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:00:08,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:00:08,108 INFO L87 Difference]: Start difference. First operand has 2196 states, 2139 states have (on average 2.091631603553062) internal successors, (4474), 2195 states have internal predecessors, (4474), 0 states have call successors, (0), 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) [2022-04-18 19:00:08,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:08,184 INFO L93 Difference]: Finished difference Result 2194 states and 4429 transitions. [2022-04-18 19:00:08,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:00:08,186 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 [2022-04-18 19:00:08,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:08,209 INFO L225 Difference]: With dead ends: 2194 [2022-04-18 19:00:08,209 INFO L226 Difference]: Without dead ends: 2194 [2022-04-18 19:00:08,209 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:08,213 INFO L913 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:08,216 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:00:08,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2022-04-18 19:00:08,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2022-04-18 19:00:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 2139 states have (on average 2.070593735390369) internal successors, (4429), 2193 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 4429 transitions. [2022-04-18 19:00:08,310 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 4429 transitions. Word has length 1 [2022-04-18 19:00:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:08,311 INFO L478 AbstractCegarLoop]: Abstraction has 2194 states and 4429 transitions. [2022-04-18 19:00:08,311 INFO L479 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) [2022-04-18 19:00:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 4429 transitions. [2022-04-18 19:00:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:00:08,312 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:08,312 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:08,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:00:08,313 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:08,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:08,313 INFO L85 PathProgramCache]: Analyzing trace with hash 826493578, now seen corresponding path program 1 times [2022-04-18 19:00:08,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:08,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378134489] [2022-04-18 19:00:08,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:08,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:08,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:08,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378134489] [2022-04-18 19:00:08,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378134489] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:08,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:08,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 19:00:08,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951798802] [2022-04-18 19:00:08,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:08,406 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:00:08,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:08,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:00:08,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:00:08,407 INFO L87 Difference]: Start difference. First operand 2194 states and 4429 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:08,480 INFO L93 Difference]: Finished difference Result 4043 states and 8170 transitions. [2022-04-18 19:00:08,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:00:08,481 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 [2022-04-18 19:00:08,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:08,494 INFO L225 Difference]: With dead ends: 4043 [2022-04-18 19:00:08,495 INFO L226 Difference]: Without dead ends: 4043 [2022-04-18 19:00:08,495 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:08,496 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 86 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:08,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 187 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:00:08,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4043 states. [2022-04-18 19:00:08,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 2237. [2022-04-18 19:00:08,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2237 states, 2182 states have (on average 2.0692025664527955) internal successors, (4515), 2236 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2237 states to 2237 states and 4515 transitions. [2022-04-18 19:00:08,589 INFO L78 Accepts]: Start accepts. Automaton has 2237 states and 4515 transitions. Word has length 9 [2022-04-18 19:00:08,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:08,590 INFO L478 AbstractCegarLoop]: Abstraction has 2237 states and 4515 transitions. [2022-04-18 19:00:08,590 INFO L479 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) [2022-04-18 19:00:08,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2237 states and 4515 transitions. [2022-04-18 19:00:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:00:08,592 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:08,592 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:08,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:00:08,593 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:08,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2145752658, now seen corresponding path program 1 times [2022-04-18 19:00:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:08,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007763590] [2022-04-18 19:00:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:08,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:08,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007763590] [2022-04-18 19:00:08,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007763590] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:08,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:08,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 19:00:08,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641718559] [2022-04-18 19:00:08,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:08,658 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:00:08,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:08,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:00:08,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:00:08,659 INFO L87 Difference]: Start difference. First operand 2237 states and 4515 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) [2022-04-18 19:00:08,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:08,718 INFO L93 Difference]: Finished difference Result 3693 states and 7455 transitions. [2022-04-18 19:00:08,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:00:08,719 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 [2022-04-18 19:00:08,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:08,733 INFO L225 Difference]: With dead ends: 3693 [2022-04-18 19:00:08,733 INFO L226 Difference]: Without dead ends: 3693 [2022-04-18 19:00:08,734 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:08,734 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 79 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:08,735 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 193 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 19:00:08,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2022-04-18 19:00:08,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 2289. [2022-04-18 19:00:08,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 2234 states have (on average 2.0680393912264994) internal successors, (4620), 2288 states have internal predecessors, (4620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 4620 transitions. [2022-04-18 19:00:08,787 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 4620 transitions. Word has length 9 [2022-04-18 19:00:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:08,787 INFO L478 AbstractCegarLoop]: Abstraction has 2289 states and 4620 transitions. [2022-04-18 19:00:08,788 INFO L479 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) [2022-04-18 19:00:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 4620 transitions. [2022-04-18 19:00:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:00:08,788 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:08,788 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:08,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:00:08,789 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:08,789 INFO L85 PathProgramCache]: Analyzing trace with hash 974465141, now seen corresponding path program 1 times [2022-04-18 19:00:08,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:08,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969798390] [2022-04-18 19:00:08,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:08,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:08,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:08,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969798390] [2022-04-18 19:00:08,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969798390] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:08,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:08,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:00:08,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886401789] [2022-04-18 19:00:08,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:08,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:00:08,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:08,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:00:08,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:00:08,893 INFO L87 Difference]: Start difference. First operand 2289 states and 4620 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:09,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:09,589 INFO L93 Difference]: Finished difference Result 3385 states and 6834 transitions. [2022-04-18 19:00:09,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:00:09,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-04-18 19:00:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:09,602 INFO L225 Difference]: With dead ends: 3385 [2022-04-18 19:00:09,603 INFO L226 Difference]: Without dead ends: 3385 [2022-04-18 19:00:09,603 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:09,604 INFO L913 BasicCegarLoop]: 72 mSDtfsCounter, 103 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:09,606 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 106 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:00:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2022-04-18 19:00:09,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 2685. [2022-04-18 19:00:09,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2630 states have (on average 2.0608365019011408) internal successors, (5420), 2684 states have internal predecessors, (5420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:09,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 5420 transitions. [2022-04-18 19:00:09,667 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 5420 transitions. Word has length 9 [2022-04-18 19:00:09,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:09,668 INFO L478 AbstractCegarLoop]: Abstraction has 2685 states and 5420 transitions. [2022-04-18 19:00:09,668 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:09,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 5420 transitions. [2022-04-18 19:00:09,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:00:09,671 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:09,671 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:09,672 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:00:09,672 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:09,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:09,673 INFO L85 PathProgramCache]: Analyzing trace with hash 940225605, now seen corresponding path program 1 times [2022-04-18 19:00:09,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:09,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017543076] [2022-04-18 19:00:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:09,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:09,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:09,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:09,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017543076] [2022-04-18 19:00:09,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017543076] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:09,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:09,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:00:09,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603400561] [2022-04-18 19:00:09,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:09,779 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:00:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:09,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:00:09,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:00:09,779 INFO L87 Difference]: Start difference. First operand 2685 states and 5420 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:10,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:10,229 INFO L93 Difference]: Finished difference Result 4029 states and 8148 transitions. [2022-04-18 19:00:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:00:10,229 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 [2022-04-18 19:00:10,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:10,243 INFO L225 Difference]: With dead ends: 4029 [2022-04-18 19:00:10,243 INFO L226 Difference]: Without dead ends: 4029 [2022-04-18 19:00:10,244 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:10,244 INFO L913 BasicCegarLoop]: 67 mSDtfsCounter, 87 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:10,244 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 91 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:00:10,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2022-04-18 19:00:10,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3129. [2022-04-18 19:00:10,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 3080 states have (on average 2.048051948051948) internal successors, (6308), 3128 states have internal predecessors, (6308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:10,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 6308 transitions. [2022-04-18 19:00:10,310 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 6308 transitions. Word has length 10 [2022-04-18 19:00:10,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:10,311 INFO L478 AbstractCegarLoop]: Abstraction has 3129 states and 6308 transitions. [2022-04-18 19:00:10,311 INFO L479 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) [2022-04-18 19:00:10,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 6308 transitions. [2022-04-18 19:00:10,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 19:00:10,311 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:10,312 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:10,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:00:10,312 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:10,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:10,312 INFO L85 PathProgramCache]: Analyzing trace with hash -998778852, now seen corresponding path program 1 times [2022-04-18 19:00:10,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:10,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035581835] [2022-04-18 19:00:10,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:10,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:10,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:10,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:10,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035581835] [2022-04-18 19:00:10,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035581835] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:10,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:10,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:00:10,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474993960] [2022-04-18 19:00:10,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:10,385 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:00:10,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:10,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:00:10,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:00:10,386 INFO L87 Difference]: Start difference. First operand 3129 states and 6308 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:10,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:10,812 INFO L93 Difference]: Finished difference Result 3347 states and 6749 transitions. [2022-04-18 19:00:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:00:10,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-04-18 19:00:10,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:10,824 INFO L225 Difference]: With dead ends: 3347 [2022-04-18 19:00:10,824 INFO L226 Difference]: Without dead ends: 3347 [2022-04-18 19:00:10,824 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:10,824 INFO L913 BasicCegarLoop]: 85 mSDtfsCounter, 99 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:10,824 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 102 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:00:10,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2022-04-18 19:00:10,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3300. [2022-04-18 19:00:10,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3254 states have (on average 2.0448678549477566) internal successors, (6654), 3299 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:10,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 6654 transitions. [2022-04-18 19:00:10,880 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 6654 transitions. Word has length 15 [2022-04-18 19:00:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:10,880 INFO L478 AbstractCegarLoop]: Abstraction has 3300 states and 6654 transitions. [2022-04-18 19:00:10,880 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:10,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 6654 transitions. [2022-04-18 19:00:10,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 19:00:10,881 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:10,881 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:10,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 19:00:10,881 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:10,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:10,882 INFO L85 PathProgramCache]: Analyzing trace with hash 148043176, now seen corresponding path program 1 times [2022-04-18 19:00:10,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:10,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814994219] [2022-04-18 19:00:10,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:10,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:10,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:10,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:10,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814994219] [2022-04-18 19:00:10,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814994219] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:10,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:10,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:00:10,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487945476] [2022-04-18 19:00:10,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:10,979 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:00:10,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:10,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:00:10,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:00:10,980 INFO L87 Difference]: Start difference. First operand 3300 states and 6654 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:11,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:11,444 INFO L93 Difference]: Finished difference Result 4367 states and 8827 transitions. [2022-04-18 19:00:11,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:00:11,445 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 [2022-04-18 19:00:11,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:11,464 INFO L225 Difference]: With dead ends: 4367 [2022-04-18 19:00:11,464 INFO L226 Difference]: Without dead ends: 4367 [2022-04-18 19:00:11,464 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:11,464 INFO L913 BasicCegarLoop]: 79 mSDtfsCounter, 84 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:11,465 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 103 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:00:11,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2022-04-18 19:00:11,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 3439. [2022-04-18 19:00:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3396 states have (on average 2.0527090694935217) internal successors, (6971), 3438 states have internal predecessors, (6971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 6971 transitions. [2022-04-18 19:00:11,552 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 6971 transitions. Word has length 16 [2022-04-18 19:00:11,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:11,553 INFO L478 AbstractCegarLoop]: Abstraction has 3439 states and 6971 transitions. [2022-04-18 19:00:11,553 INFO L479 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) [2022-04-18 19:00:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 6971 transitions. [2022-04-18 19:00:11,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-18 19:00:11,556 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:11,556 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:11,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 19:00:11,557 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:11,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:11,558 INFO L85 PathProgramCache]: Analyzing trace with hash -885073477, now seen corresponding path program 1 times [2022-04-18 19:00:11,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:11,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637035672] [2022-04-18 19:00:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:11,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:11,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:11,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:11,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637035672] [2022-04-18 19:00:11,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637035672] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:11,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:11,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:00:11,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704269338] [2022-04-18 19:00:11,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:11,637 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:00:11,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:11,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:00:11,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:00:11,638 INFO L87 Difference]: Start difference. First operand 3439 states and 6971 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:11,962 INFO L93 Difference]: Finished difference Result 3633 states and 7363 transitions. [2022-04-18 19:00:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:00:11,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-04-18 19:00:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:11,969 INFO L225 Difference]: With dead ends: 3633 [2022-04-18 19:00:11,969 INFO L226 Difference]: Without dead ends: 3633 [2022-04-18 19:00:11,970 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:11,970 INFO L913 BasicCegarLoop]: 81 mSDtfsCounter, 96 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:11,970 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 97 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 19:00:11,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-04-18 19:00:12,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3633. [2022-04-18 19:00:12,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 3590 states have (on average 2.050974930362117) internal successors, (7363), 3632 states have internal predecessors, (7363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 7363 transitions. [2022-04-18 19:00:12,045 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 7363 transitions. Word has length 27 [2022-04-18 19:00:12,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:12,046 INFO L478 AbstractCegarLoop]: Abstraction has 3633 states and 7363 transitions. [2022-04-18 19:00:12,046 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 7363 transitions. [2022-04-18 19:00:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-18 19:00:12,047 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:12,047 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:12,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 19:00:12,048 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:12,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:12,048 INFO L85 PathProgramCache]: Analyzing trace with hash -108264437, now seen corresponding path program 1 times [2022-04-18 19:00:12,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:12,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234522558] [2022-04-18 19:00:12,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:12,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:12,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:12,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234522558] [2022-04-18 19:00:12,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234522558] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:12,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:12,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:00:12,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288973847] [2022-04-18 19:00:12,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:12,126 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:00:12,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:12,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:00:12,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:00:12,127 INFO L87 Difference]: Start difference. First operand 3633 states and 7363 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:12,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:12,622 INFO L93 Difference]: Finished difference Result 3795 states and 7687 transitions. [2022-04-18 19:00:12,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:00:12,622 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 [2022-04-18 19:00:12,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:12,629 INFO L225 Difference]: With dead ends: 3795 [2022-04-18 19:00:12,629 INFO L226 Difference]: Without dead ends: 3795 [2022-04-18 19:00:12,630 INFO L912 BasicCegarLoop]: 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 [2022-04-18 19:00:12,630 INFO L913 BasicCegarLoop]: 82 mSDtfsCounter, 76 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:12,630 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 103 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 19:00:12,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3795 states. [2022-04-18 19:00:12,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3795 to 3795. [2022-04-18 19:00:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3795 states, 3752 states have (on average 2.048773987206823) internal successors, (7687), 3794 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 7687 transitions. [2022-04-18 19:00:12,709 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 7687 transitions. Word has length 28 [2022-04-18 19:00:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:12,709 INFO L478 AbstractCegarLoop]: Abstraction has 3795 states and 7687 transitions. [2022-04-18 19:00:12,710 INFO L479 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) [2022-04-18 19:00:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 7687 transitions. [2022-04-18 19:00:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:12,711 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:12,711 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:12,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 19:00:12,711 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:12,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:12,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1698976254, now seen corresponding path program 1 times [2022-04-18 19:00:12,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:12,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970250020] [2022-04-18 19:00:12,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:12,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:13,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:13,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:13,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970250020] [2022-04-18 19:00:13,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970250020] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:13,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:13,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:00:13,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121588830] [2022-04-18 19:00:13,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:13,369 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:00:13,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:13,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:00:13,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:00:13,369 INFO L87 Difference]: Start difference. First operand 3795 states and 7687 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:16,604 INFO L93 Difference]: Finished difference Result 9390 states and 19133 transitions. [2022-04-18 19:00:16,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:00:16,604 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:16,624 INFO L225 Difference]: With dead ends: 9390 [2022-04-18 19:00:16,624 INFO L226 Difference]: Without dead ends: 9390 [2022-04-18 19:00:16,624 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-04-18 19:00:16,625 INFO L913 BasicCegarLoop]: 85 mSDtfsCounter, 627 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 3641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:16,625 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 429 Invalid, 3641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 3142 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:00:16,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9390 states. [2022-04-18 19:00:16,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9390 to 4260. [2022-04-18 19:00:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 4217 states have (on average 2.0626037467393883) internal successors, (8698), 4259 states have internal predecessors, (8698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:16,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 8698 transitions. [2022-04-18 19:00:16,733 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 8698 transitions. Word has length 31 [2022-04-18 19:00:16,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:16,734 INFO L478 AbstractCegarLoop]: Abstraction has 4260 states and 8698 transitions. [2022-04-18 19:00:16,734 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:16,734 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 8698 transitions. [2022-04-18 19:00:16,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:16,737 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:16,737 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:16,737 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 19:00:16,737 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:16,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:16,738 INFO L85 PathProgramCache]: Analyzing trace with hash 351659095, now seen corresponding path program 1 times [2022-04-18 19:00:16,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:16,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353061503] [2022-04-18 19:00:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:16,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:17,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:17,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353061503] [2022-04-18 19:00:17,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353061503] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:17,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:17,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:17,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57541542] [2022-04-18 19:00:17,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:17,491 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:17,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:17,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:17,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:17,492 INFO L87 Difference]: Start difference. First operand 4260 states and 8698 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:20,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:20,571 INFO L93 Difference]: Finished difference Result 7305 states and 14855 transitions. [2022-04-18 19:00:20,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:00:20,572 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:20,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:20,583 INFO L225 Difference]: With dead ends: 7305 [2022-04-18 19:00:20,584 INFO L226 Difference]: Without dead ends: 7305 [2022-04-18 19:00:20,584 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=214, Invalid=778, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:00:20,584 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 809 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 4512 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 4596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:20,585 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 878 Invalid, 4596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4512 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:00:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7305 states. [2022-04-18 19:00:20,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 4289. [2022-04-18 19:00:20,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4289 states, 4246 states have (on average 2.062411681582666) internal successors, (8757), 4288 states have internal predecessors, (8757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4289 states to 4289 states and 8757 transitions. [2022-04-18 19:00:20,654 INFO L78 Accepts]: Start accepts. Automaton has 4289 states and 8757 transitions. Word has length 31 [2022-04-18 19:00:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:20,654 INFO L478 AbstractCegarLoop]: Abstraction has 4289 states and 8757 transitions. [2022-04-18 19:00:20,655 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 4289 states and 8757 transitions. [2022-04-18 19:00:20,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:20,657 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:20,657 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:20,657 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 19:00:20,657 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash -126004678, now seen corresponding path program 2 times [2022-04-18 19:00:20,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:20,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791886919] [2022-04-18 19:00:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:20,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:21,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:21,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791886919] [2022-04-18 19:00:21,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791886919] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:21,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:21,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856810709] [2022-04-18 19:00:21,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:21,872 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:21,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:21,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:21,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:21,873 INFO L87 Difference]: Start difference. First operand 4289 states and 8757 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:25,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:25,338 INFO L93 Difference]: Finished difference Result 8708 states and 17773 transitions. [2022-04-18 19:00:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-04-18 19:00:25,338 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:25,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:25,350 INFO L225 Difference]: With dead ends: 8708 [2022-04-18 19:00:25,350 INFO L226 Difference]: Without dead ends: 8708 [2022-04-18 19:00:25,351 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=375, Invalid=1347, Unknown=0, NotChecked=0, Total=1722 [2022-04-18 19:00:25,351 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 596 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 3817 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 4136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 3817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:25,351 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 946 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 3817 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:00:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8708 states. [2022-04-18 19:00:25,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8708 to 5185. [2022-04-18 19:00:25,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5185 states, 5142 states have (on average 2.0805134189031507) internal successors, (10698), 5184 states have internal predecessors, (10698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:25,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 5185 states and 10698 transitions. [2022-04-18 19:00:25,432 INFO L78 Accepts]: Start accepts. Automaton has 5185 states and 10698 transitions. Word has length 31 [2022-04-18 19:00:25,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:25,432 INFO L478 AbstractCegarLoop]: Abstraction has 5185 states and 10698 transitions. [2022-04-18 19:00:25,433 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5185 states and 10698 transitions. [2022-04-18 19:00:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:25,434 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:25,434 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:25,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 19:00:25,435 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:25,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:25,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1164954970, now seen corresponding path program 3 times [2022-04-18 19:00:25,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:25,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116562821] [2022-04-18 19:00:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:25,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:26,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:26,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:26,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116562821] [2022-04-18 19:00:26,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116562821] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:26,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:26,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:26,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354233141] [2022-04-18 19:00:26,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:26,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:26,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:26,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:26,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:26,605 INFO L87 Difference]: Start difference. First operand 5185 states and 10698 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:29,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:29,933 INFO L93 Difference]: Finished difference Result 10451 states and 21423 transitions. [2022-04-18 19:00:29,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-04-18 19:00:29,934 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:29,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:29,946 INFO L225 Difference]: With dead ends: 10451 [2022-04-18 19:00:29,947 INFO L226 Difference]: Without dead ends: 10451 [2022-04-18 19:00:29,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=425, Invalid=1555, Unknown=0, NotChecked=0, Total=1980 [2022-04-18 19:00:29,948 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 688 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:29,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 1110 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:00:29,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10451 states. [2022-04-18 19:00:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10451 to 5219. [2022-04-18 19:00:30,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5176 states have (on average 2.080564142194745) internal successors, (10769), 5218 states have internal predecessors, (10769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:30,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 10769 transitions. [2022-04-18 19:00:30,041 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 10769 transitions. Word has length 31 [2022-04-18 19:00:30,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:30,041 INFO L478 AbstractCegarLoop]: Abstraction has 5219 states and 10769 transitions. [2022-04-18 19:00:30,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:30,042 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 10769 transitions. [2022-04-18 19:00:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:30,043 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:30,043 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:30,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 19:00:30,044 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:30,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:30,044 INFO L85 PathProgramCache]: Analyzing trace with hash 2081415934, now seen corresponding path program 4 times [2022-04-18 19:00:30,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:30,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605912793] [2022-04-18 19:00:30,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:30,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:30,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:30,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605912793] [2022-04-18 19:00:30,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605912793] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:30,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:30,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:30,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825103405] [2022-04-18 19:00:30,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:30,988 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:30,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:30,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:30,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:30,989 INFO L87 Difference]: Start difference. First operand 5219 states and 10769 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:34,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:34,218 INFO L93 Difference]: Finished difference Result 11208 states and 23055 transitions. [2022-04-18 19:00:34,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-04-18 19:00:34,218 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:34,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:34,234 INFO L225 Difference]: With dead ends: 11208 [2022-04-18 19:00:34,234 INFO L226 Difference]: Without dead ends: 11208 [2022-04-18 19:00:34,235 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=437, Invalid=1633, Unknown=0, NotChecked=0, Total=2070 [2022-04-18 19:00:34,235 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 737 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 4158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 3729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:34,235 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [737 Valid, 1001 Invalid, 4158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:00:34,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2022-04-18 19:00:34,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 6570. [2022-04-18 19:00:34,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6570 states, 6527 states have (on average 2.105101884479853) internal successors, (13740), 6569 states have internal predecessors, (13740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6570 states to 6570 states and 13740 transitions. [2022-04-18 19:00:34,365 INFO L78 Accepts]: Start accepts. Automaton has 6570 states and 13740 transitions. Word has length 31 [2022-04-18 19:00:34,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:34,365 INFO L478 AbstractCegarLoop]: Abstraction has 6570 states and 13740 transitions. [2022-04-18 19:00:34,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand 6570 states and 13740 transitions. [2022-04-18 19:00:34,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:34,367 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:34,367 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:34,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 19:00:34,367 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash -803200286, now seen corresponding path program 5 times [2022-04-18 19:00:34,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:34,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189415557] [2022-04-18 19:00:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:35,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:35,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189415557] [2022-04-18 19:00:35,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189415557] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:35,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:35,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:35,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384134885] [2022-04-18 19:00:35,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:35,616 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:35,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:35,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:35,616 INFO L87 Difference]: Start difference. First operand 6570 states and 13740 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:39,099 INFO L93 Difference]: Finished difference Result 12695 states and 26305 transitions. [2022-04-18 19:00:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-04-18 19:00:39,100 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:39,116 INFO L225 Difference]: With dead ends: 12695 [2022-04-18 19:00:39,117 INFO L226 Difference]: Without dead ends: 12695 [2022-04-18 19:00:39,117 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-04-18 19:00:39,118 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 691 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 4026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:39,118 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 1111 Invalid, 4026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 3530 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:00:39,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12695 states. [2022-04-18 19:00:39,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12695 to 7926. [2022-04-18 19:00:39,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7926 states, 7883 states have (on average 2.1205124952429277) internal successors, (16716), 7925 states have internal predecessors, (16716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7926 states to 7926 states and 16716 transitions. [2022-04-18 19:00:39,250 INFO L78 Accepts]: Start accepts. Automaton has 7926 states and 16716 transitions. Word has length 31 [2022-04-18 19:00:39,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:39,250 INFO L478 AbstractCegarLoop]: Abstraction has 7926 states and 16716 transitions. [2022-04-18 19:00:39,250 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7926 states and 16716 transitions. [2022-04-18 19:00:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:39,252 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:39,253 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:39,253 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 19:00:39,253 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:39,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:39,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1469682362, now seen corresponding path program 6 times [2022-04-18 19:00:39,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:39,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829478529] [2022-04-18 19:00:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:39,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:39,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:39,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829478529] [2022-04-18 19:00:39,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829478529] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:39,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:39,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:39,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564836223] [2022-04-18 19:00:39,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:39,880 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:39,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:39,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:39,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:39,881 INFO L87 Difference]: Start difference. First operand 7926 states and 16716 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:43,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:43,227 INFO L93 Difference]: Finished difference Result 14848 states and 30877 transitions. [2022-04-18 19:00:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-04-18 19:00:43,227 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:43,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:43,248 INFO L225 Difference]: With dead ends: 14848 [2022-04-18 19:00:43,248 INFO L226 Difference]: Without dead ends: 14848 [2022-04-18 19:00:43,249 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=476, Invalid=1780, Unknown=0, NotChecked=0, Total=2256 [2022-04-18 19:00:43,249 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 837 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 3516 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 3897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 3516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:43,249 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 1144 Invalid, 3897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 3516 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:00:43,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14848 states. [2022-04-18 19:00:43,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14848 to 9598. [2022-04-18 19:00:43,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 9555 states have (on average 2.132810047095761) internal successors, (20379), 9597 states have internal predecessors, (20379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 20379 transitions. [2022-04-18 19:00:43,402 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 20379 transitions. Word has length 31 [2022-04-18 19:00:43,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:43,402 INFO L478 AbstractCegarLoop]: Abstraction has 9598 states and 20379 transitions. [2022-04-18 19:00:43,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 20379 transitions. [2022-04-18 19:00:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:43,404 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:43,404 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:43,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 19:00:43,404 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:43,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:43,404 INFO L85 PathProgramCache]: Analyzing trace with hash 807273879, now seen corresponding path program 2 times [2022-04-18 19:00:43,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:43,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262317480] [2022-04-18 19:00:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:43,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:44,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:44,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262317480] [2022-04-18 19:00:44,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262317480] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:44,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:44,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:44,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463733307] [2022-04-18 19:00:44,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:44,033 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:44,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:44,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:44,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:44,034 INFO L87 Difference]: Start difference. First operand 9598 states and 20379 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:46,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:46,840 INFO L93 Difference]: Finished difference Result 13349 states and 27933 transitions. [2022-04-18 19:00:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:00:46,840 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:46,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:46,857 INFO L225 Difference]: With dead ends: 13349 [2022-04-18 19:00:46,857 INFO L226 Difference]: Without dead ends: 13349 [2022-04-18 19:00:46,858 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=775, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:00:46,859 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 808 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 4071 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:46,860 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [808 Valid, 954 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4071 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:00:46,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13349 states. [2022-04-18 19:00:46,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13349 to 9884. [2022-04-18 19:00:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9884 states, 9841 states have (on average 2.1336246316431255) internal successors, (20997), 9883 states have internal predecessors, (20997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9884 states to 9884 states and 20997 transitions. [2022-04-18 19:00:46,983 INFO L78 Accepts]: Start accepts. Automaton has 9884 states and 20997 transitions. Word has length 31 [2022-04-18 19:00:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:46,983 INFO L478 AbstractCegarLoop]: Abstraction has 9884 states and 20997 transitions. [2022-04-18 19:00:46,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 9884 states and 20997 transitions. [2022-04-18 19:00:46,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:46,985 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:46,985 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:46,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 19:00:46,985 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:46,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:46,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1115162872, now seen corresponding path program 7 times [2022-04-18 19:00:46,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:46,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894942297] [2022-04-18 19:00:46,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:46,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:47,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:47,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894942297] [2022-04-18 19:00:47,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894942297] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:47,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:47,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:47,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729506971] [2022-04-18 19:00:47,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:47,448 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:47,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:47,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:47,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:47,448 INFO L87 Difference]: Start difference. First operand 9884 states and 20997 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:50,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:50,893 INFO L93 Difference]: Finished difference Result 17749 states and 37012 transitions. [2022-04-18 19:00:50,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-04-18 19:00:50,894 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:50,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:50,924 INFO L225 Difference]: With dead ends: 17749 [2022-04-18 19:00:50,924 INFO L226 Difference]: Without dead ends: 17749 [2022-04-18 19:00:50,925 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=618, Invalid=2462, Unknown=0, NotChecked=0, Total=3080 [2022-04-18 19:00:50,926 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 870 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 3485 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 3795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 3485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:50,926 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 1387 Invalid, 3795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 3485 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:00:50,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17749 states. [2022-04-18 19:00:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17749 to 13705. [2022-04-18 19:00:51,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13705 states, 13662 states have (on average 2.143097643097643) internal successors, (29279), 13704 states have internal predecessors, (29279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:51,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13705 states to 13705 states and 29279 transitions. [2022-04-18 19:00:51,135 INFO L78 Accepts]: Start accepts. Automaton has 13705 states and 29279 transitions. Word has length 31 [2022-04-18 19:00:51,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:51,135 INFO L478 AbstractCegarLoop]: Abstraction has 13705 states and 29279 transitions. [2022-04-18 19:00:51,135 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:51,135 INFO L276 IsEmpty]: Start isEmpty. Operand 13705 states and 29279 transitions. [2022-04-18 19:00:51,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:51,138 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:51,138 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:51,139 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 19:00:51,139 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1777571355, now seen corresponding path program 3 times [2022-04-18 19:00:51,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:51,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959639194] [2022-04-18 19:00:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:51,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:51,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959639194] [2022-04-18 19:00:51,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959639194] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:51,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:51,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:51,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229388444] [2022-04-18 19:00:51,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:51,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:51,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:51,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:51,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:51,912 INFO L87 Difference]: Start difference. First operand 13705 states and 29279 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:55,092 INFO L93 Difference]: Finished difference Result 16414 states and 34531 transitions. [2022-04-18 19:00:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:00:55,092 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:55,116 INFO L225 Difference]: With dead ends: 16414 [2022-04-18 19:00:55,116 INFO L226 Difference]: Without dead ends: 16414 [2022-04-18 19:00:55,117 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:00:55,117 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 659 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 4435 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 4493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:55,118 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [659 Valid, 1254 Invalid, 4493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 4435 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:00:55,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16414 states. [2022-04-18 19:00:55,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16414 to 13931. [2022-04-18 19:00:55,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13931 states, 13888 states have (on average 2.1439372119815667) internal successors, (29775), 13930 states have internal predecessors, (29775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13931 states to 13931 states and 29775 transitions. [2022-04-18 19:00:55,330 INFO L78 Accepts]: Start accepts. Automaton has 13931 states and 29775 transitions. Word has length 31 [2022-04-18 19:00:55,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:55,330 INFO L478 AbstractCegarLoop]: Abstraction has 13931 states and 29775 transitions. [2022-04-18 19:00:55,330 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:55,330 INFO L276 IsEmpty]: Start isEmpty. Operand 13931 states and 29775 transitions. [2022-04-18 19:00:55,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:55,333 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:55,334 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:55,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 19:00:55,334 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:55,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:55,334 INFO L85 PathProgramCache]: Analyzing trace with hash -509217617, now seen corresponding path program 4 times [2022-04-18 19:00:55,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:55,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868829363] [2022-04-18 19:00:55,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:55,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:55,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:55,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868829363] [2022-04-18 19:00:55,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868829363] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:55,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:55,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:55,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168008763] [2022-04-18 19:00:55,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:55,831 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:55,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:55,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:55,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:55,832 INFO L87 Difference]: Start difference. First operand 13931 states and 29775 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:58,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:00:58,225 INFO L93 Difference]: Finished difference Result 15545 states and 32762 transitions. [2022-04-18 19:00:58,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:00:58,225 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:00:58,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:00:58,247 INFO L225 Difference]: With dead ends: 15545 [2022-04-18 19:00:58,247 INFO L226 Difference]: Without dead ends: 15545 [2022-04-18 19:00:58,247 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:00:58,248 INFO L913 BasicCegarLoop]: 175 mSDtfsCounter, 658 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 3628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:00:58,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [658 Valid, 1075 Invalid, 3628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:00:58,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15545 states. [2022-04-18 19:00:58,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15545 to 13937. [2022-04-18 19:00:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13937 states, 13894 states have (on average 2.1443068950626167) internal successors, (29793), 13936 states have internal predecessors, (29793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:58,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13937 states to 13937 states and 29793 transitions. [2022-04-18 19:00:58,428 INFO L78 Accepts]: Start accepts. Automaton has 13937 states and 29793 transitions. Word has length 31 [2022-04-18 19:00:58,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:00:58,428 INFO L478 AbstractCegarLoop]: Abstraction has 13937 states and 29793 transitions. [2022-04-18 19:00:58,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:00:58,428 INFO L276 IsEmpty]: Start isEmpty. Operand 13937 states and 29793 transitions. [2022-04-18 19:00:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:00:58,431 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:00:58,431 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:00:58,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 19:00:58,432 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:00:58,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:00:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -497829767, now seen corresponding path program 5 times [2022-04-18 19:00:58,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:00:58,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604632852] [2022-04-18 19:00:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:00:58,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:00:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:00:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:00:59,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:00:59,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604632852] [2022-04-18 19:00:59,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604632852] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:00:59,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:00:59,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:00:59,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682418154] [2022-04-18 19:00:59,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:00:59,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:00:59,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:00:59,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:00:59,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:00:59,158 INFO L87 Difference]: Start difference. First operand 13937 states and 29793 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:01,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:01,962 INFO L93 Difference]: Finished difference Result 15554 states and 32778 transitions. [2022-04-18 19:01:01,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:01:01,962 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:01,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:01,985 INFO L225 Difference]: With dead ends: 15554 [2022-04-18 19:01:01,985 INFO L226 Difference]: Without dead ends: 15554 [2022-04-18 19:01:01,986 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:01:01,986 INFO L913 BasicCegarLoop]: 175 mSDtfsCounter, 589 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 4166 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 4225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 4166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:01,987 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 1179 Invalid, 4225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 4166 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:01:02,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15554 states. [2022-04-18 19:01:02,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15554 to 13935. [2022-04-18 19:01:02,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13935 states, 13892 states have (on average 2.1441837028505613) internal successors, (29787), 13934 states have internal predecessors, (29787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13935 states to 13935 states and 29787 transitions. [2022-04-18 19:01:02,228 INFO L78 Accepts]: Start accepts. Automaton has 13935 states and 29787 transitions. Word has length 31 [2022-04-18 19:01:02,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:02,228 INFO L478 AbstractCegarLoop]: Abstraction has 13935 states and 29787 transitions. [2022-04-18 19:01:02,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand 13935 states and 29787 transitions. [2022-04-18 19:01:02,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:02,232 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:02,232 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:02,232 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 19:01:02,232 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:02,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:02,233 INFO L85 PathProgramCache]: Analyzing trace with hash -252947747, now seen corresponding path program 6 times [2022-04-18 19:01:02,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:02,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048884790] [2022-04-18 19:01:02,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:02,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:02,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:02,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:02,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048884790] [2022-04-18 19:01:02,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048884790] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:02,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:02,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:01:02,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864922947] [2022-04-18 19:01:02,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:02,755 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:01:02,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:02,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:01:02,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:01:02,756 INFO L87 Difference]: Start difference. First operand 13935 states and 29787 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:04,918 INFO L93 Difference]: Finished difference Result 15566 states and 32800 transitions. [2022-04-18 19:01:04,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:01:04,918 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:04,944 INFO L225 Difference]: With dead ends: 15566 [2022-04-18 19:01:04,944 INFO L226 Difference]: Without dead ends: 15566 [2022-04-18 19:01:04,945 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:01:04,945 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 612 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 2937 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 3013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:04,946 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 1073 Invalid, 3013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2937 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:01:04,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15566 states. [2022-04-18 19:01:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15566 to 13933. [2022-04-18 19:01:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13933 states, 13890 states have (on average 2.144060475161987) internal successors, (29781), 13932 states have internal predecessors, (29781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13933 states to 13933 states and 29781 transitions. [2022-04-18 19:01:05,154 INFO L78 Accepts]: Start accepts. Automaton has 13933 states and 29781 transitions. Word has length 31 [2022-04-18 19:01:05,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:05,154 INFO L478 AbstractCegarLoop]: Abstraction has 13933 states and 29781 transitions. [2022-04-18 19:01:05,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:05,155 INFO L276 IsEmpty]: Start isEmpty. Operand 13933 states and 29781 transitions. [2022-04-18 19:01:05,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:05,157 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:05,158 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:05,158 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 19:01:05,158 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:05,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:05,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1186555721, now seen corresponding path program 7 times [2022-04-18 19:01:05,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:05,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266314904] [2022-04-18 19:01:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:05,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:05,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266314904] [2022-04-18 19:01:05,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266314904] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:05,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:05,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:01:05,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867170885] [2022-04-18 19:01:05,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:05,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:01:05,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:05,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:01:05,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:01:05,695 INFO L87 Difference]: Start difference. First operand 13933 states and 29781 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:08,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:08,259 INFO L93 Difference]: Finished difference Result 15561 states and 32786 transitions. [2022-04-18 19:01:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:01:08,260 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:08,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:08,283 INFO L225 Difference]: With dead ends: 15561 [2022-04-18 19:01:08,283 INFO L226 Difference]: Without dead ends: 15561 [2022-04-18 19:01:08,284 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:01:08,284 INFO L913 BasicCegarLoop]: 172 mSDtfsCounter, 510 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 3507 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 3569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:08,284 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 1174 Invalid, 3569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 3507 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:01:08,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15561 states. [2022-04-18 19:01:08,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15561 to 13837. [2022-04-18 19:01:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13837 states, 13794 states have (on average 2.1425982311149774) internal successors, (29555), 13836 states have internal predecessors, (29555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13837 states to 13837 states and 29555 transitions. [2022-04-18 19:01:08,485 INFO L78 Accepts]: Start accepts. Automaton has 13837 states and 29555 transitions. Word has length 31 [2022-04-18 19:01:08,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:08,485 INFO L478 AbstractCegarLoop]: Abstraction has 13837 states and 29555 transitions. [2022-04-18 19:01:08,485 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:08,485 INFO L276 IsEmpty]: Start isEmpty. Operand 13837 states and 29555 transitions. [2022-04-18 19:01:08,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:08,488 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:08,488 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:08,488 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 19:01:08,488 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:08,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:08,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2140009404, now seen corresponding path program 8 times [2022-04-18 19:01:08,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:08,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697715532] [2022-04-18 19:01:08,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:08,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:09,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:09,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:09,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697715532] [2022-04-18 19:01:09,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697715532] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:09,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:09,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:09,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020865754] [2022-04-18 19:01:09,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:09,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:09,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:09,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:09,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:09,031 INFO L87 Difference]: Start difference. First operand 13837 states and 29555 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:12,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:12,026 INFO L93 Difference]: Finished difference Result 21627 states and 45658 transitions. [2022-04-18 19:01:12,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:01:12,027 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:12,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:12,066 INFO L225 Difference]: With dead ends: 21627 [2022-04-18 19:01:12,066 INFO L226 Difference]: Without dead ends: 21627 [2022-04-18 19:01:12,066 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:01:12,067 INFO L913 BasicCegarLoop]: 79 mSDtfsCounter, 545 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 3465 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 3848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 3465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:12,067 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 401 Invalid, 3848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 3465 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:01:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21627 states. [2022-04-18 19:01:12,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21627 to 14230. [2022-04-18 19:01:12,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14230 states, 14187 states have (on average 2.140621695918799) internal successors, (30369), 14229 states have internal predecessors, (30369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:12,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14230 states to 14230 states and 30369 transitions. [2022-04-18 19:01:12,310 INFO L78 Accepts]: Start accepts. Automaton has 14230 states and 30369 transitions. Word has length 31 [2022-04-18 19:01:12,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:12,310 INFO L478 AbstractCegarLoop]: Abstraction has 14230 states and 30369 transitions. [2022-04-18 19:01:12,310 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:12,310 INFO L276 IsEmpty]: Start isEmpty. Operand 14230 states and 30369 transitions. [2022-04-18 19:01:12,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:12,313 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:12,313 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:12,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 19:01:12,314 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:12,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:12,314 INFO L85 PathProgramCache]: Analyzing trace with hash -104322543, now seen corresponding path program 8 times [2022-04-18 19:01:12,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:12,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922810614] [2022-04-18 19:01:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:12,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:12,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:12,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922810614] [2022-04-18 19:01:12,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922810614] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:12,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:12,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:01:12,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120819881] [2022-04-18 19:01:12,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:12,906 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:01:12,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:01:12,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:01:12,906 INFO L87 Difference]: Start difference. First operand 14230 states and 30369 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:15,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:15,637 INFO L93 Difference]: Finished difference Result 17134 states and 36313 transitions. [2022-04-18 19:01:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:01:15,638 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:15,665 INFO L225 Difference]: With dead ends: 17134 [2022-04-18 19:01:15,665 INFO L226 Difference]: Without dead ends: 17134 [2022-04-18 19:01:15,665 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:01:15,665 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 670 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 3872 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 3946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:15,666 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 830 Invalid, 3946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3872 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:01:15,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17134 states. [2022-04-18 19:01:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17134 to 14077. [2022-04-18 19:01:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14077 states, 14034 states have (on average 2.1420835114721393) internal successors, (30062), 14076 states have internal predecessors, (30062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:15,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14077 states to 14077 states and 30062 transitions. [2022-04-18 19:01:15,858 INFO L78 Accepts]: Start accepts. Automaton has 14077 states and 30062 transitions. Word has length 31 [2022-04-18 19:01:15,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:15,858 INFO L478 AbstractCegarLoop]: Abstraction has 14077 states and 30062 transitions. [2022-04-18 19:01:15,858 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:15,858 INFO L276 IsEmpty]: Start isEmpty. Operand 14077 states and 30062 transitions. [2022-04-18 19:01:15,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:15,861 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:15,861 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:15,861 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-18 19:01:15,861 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:15,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:15,861 INFO L85 PathProgramCache]: Analyzing trace with hash 841747041, now seen corresponding path program 1 times [2022-04-18 19:01:15,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:15,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302973865] [2022-04-18 19:01:15,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:15,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:16,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:16,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302973865] [2022-04-18 19:01:16,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302973865] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:16,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:16,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:01:16,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917019746] [2022-04-18 19:01:16,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:16,953 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:01:16,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:16,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:01:16,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:01:16,954 INFO L87 Difference]: Start difference. First operand 14077 states and 30062 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:18,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:18,194 INFO L93 Difference]: Finished difference Result 23849 states and 49990 transitions. [2022-04-18 19:01:18,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:01:18,194 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:18,232 INFO L225 Difference]: With dead ends: 23849 [2022-04-18 19:01:18,232 INFO L226 Difference]: Without dead ends: 23849 [2022-04-18 19:01:18,233 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:01:18,233 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 763 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:18,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [763 Valid, 354 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:01:18,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23849 states. [2022-04-18 19:01:18,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23849 to 17711. [2022-04-18 19:01:18,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17711 states, 17668 states have (on average 2.1519130631650443) internal successors, (38020), 17710 states have internal predecessors, (38020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17711 states to 17711 states and 38020 transitions. [2022-04-18 19:01:18,541 INFO L78 Accepts]: Start accepts. Automaton has 17711 states and 38020 transitions. Word has length 31 [2022-04-18 19:01:18,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:18,541 INFO L478 AbstractCegarLoop]: Abstraction has 17711 states and 38020 transitions. [2022-04-18 19:01:18,541 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:18,541 INFO L276 IsEmpty]: Start isEmpty. Operand 17711 states and 38020 transitions. [2022-04-18 19:01:18,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:18,545 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:18,545 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:18,545 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 19:01:18,545 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:18,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:18,546 INFO L85 PathProgramCache]: Analyzing trace with hash -49886247, now seen corresponding path program 2 times [2022-04-18 19:01:18,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:18,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638232248] [2022-04-18 19:01:18,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:18,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:19,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:19,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638232248] [2022-04-18 19:01:19,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638232248] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:19,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:19,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:01:19,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560248679] [2022-04-18 19:01:19,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:19,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:01:19,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:19,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:01:19,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:01:19,715 INFO L87 Difference]: Start difference. First operand 17711 states and 38020 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:21,378 INFO L93 Difference]: Finished difference Result 25731 states and 53946 transitions. [2022-04-18 19:01:21,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:01:21,379 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:21,421 INFO L225 Difference]: With dead ends: 25731 [2022-04-18 19:01:21,422 INFO L226 Difference]: Without dead ends: 25731 [2022-04-18 19:01:21,422 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:01:21,422 INFO L913 BasicCegarLoop]: 116 mSDtfsCounter, 732 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 2209 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:21,423 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 378 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2209 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:01:21,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25731 states. [2022-04-18 19:01:21,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25731 to 17797. [2022-04-18 19:01:21,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17797 states, 17754 states have (on average 2.1508392474935225) internal successors, (38186), 17796 states have internal predecessors, (38186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17797 states to 17797 states and 38186 transitions. [2022-04-18 19:01:21,701 INFO L78 Accepts]: Start accepts. Automaton has 17797 states and 38186 transitions. Word has length 31 [2022-04-18 19:01:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:21,701 INFO L478 AbstractCegarLoop]: Abstraction has 17797 states and 38186 transitions. [2022-04-18 19:01:21,701 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 17797 states and 38186 transitions. [2022-04-18 19:01:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:21,705 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:21,705 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:21,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 19:01:21,705 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:21,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:21,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2067842819, now seen corresponding path program 3 times [2022-04-18 19:01:21,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:21,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458942163] [2022-04-18 19:01:21,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:21,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:22,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:22,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:22,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458942163] [2022-04-18 19:01:22,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458942163] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:22,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:22,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:01:22,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710491960] [2022-04-18 19:01:22,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:22,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:01:22,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:22,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:01:22,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:01:22,895 INFO L87 Difference]: Start difference. First operand 17797 states and 38186 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:24,693 INFO L93 Difference]: Finished difference Result 28068 states and 58705 transitions. [2022-04-18 19:01:24,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:01:24,694 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:24,738 INFO L225 Difference]: With dead ends: 28068 [2022-04-18 19:01:24,739 INFO L226 Difference]: Without dead ends: 28068 [2022-04-18 19:01:24,739 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:01:24,739 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 751 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:24,739 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 357 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:01:24,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28068 states. [2022-04-18 19:01:24,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28068 to 18483. [2022-04-18 19:01:25,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18483 states, 18440 states have (on average 2.150867678958785) internal successors, (39662), 18482 states have internal predecessors, (39662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18483 states to 18483 states and 39662 transitions. [2022-04-18 19:01:25,038 INFO L78 Accepts]: Start accepts. Automaton has 18483 states and 39662 transitions. Word has length 31 [2022-04-18 19:01:25,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:25,038 INFO L478 AbstractCegarLoop]: Abstraction has 18483 states and 39662 transitions. [2022-04-18 19:01:25,038 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:25,038 INFO L276 IsEmpty]: Start isEmpty. Operand 18483 states and 39662 transitions. [2022-04-18 19:01:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:25,042 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:25,042 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:25,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-18 19:01:25,042 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:25,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:25,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1369948167, now seen corresponding path program 4 times [2022-04-18 19:01:25,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:25,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051195857] [2022-04-18 19:01:25,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:25,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:26,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:26,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051195857] [2022-04-18 19:01:26,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051195857] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:26,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:26,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:26,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087003436] [2022-04-18 19:01:26,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:26,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:26,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:26,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:26,032 INFO L87 Difference]: Start difference. First operand 18483 states and 39662 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:27,385 INFO L93 Difference]: Finished difference Result 25319 states and 52952 transitions. [2022-04-18 19:01:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:01:27,386 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:27,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:27,428 INFO L225 Difference]: With dead ends: 25319 [2022-04-18 19:01:27,428 INFO L226 Difference]: Without dead ends: 25319 [2022-04-18 19:01:27,429 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:01:27,431 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 698 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:27,431 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [698 Valid, 351 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:01:27,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25319 states. [2022-04-18 19:01:27,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25319 to 17883. [2022-04-18 19:01:27,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17883 states, 17840 states have (on average 2.149775784753363) internal successors, (38352), 17882 states have internal predecessors, (38352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:27,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17883 states to 17883 states and 38352 transitions. [2022-04-18 19:01:27,762 INFO L78 Accepts]: Start accepts. Automaton has 17883 states and 38352 transitions. Word has length 31 [2022-04-18 19:01:27,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:27,763 INFO L478 AbstractCegarLoop]: Abstraction has 17883 states and 38352 transitions. [2022-04-18 19:01:27,763 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:27,763 INFO L276 IsEmpty]: Start isEmpty. Operand 17883 states and 38352 transitions. [2022-04-18 19:01:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:27,767 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:27,767 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:27,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-18 19:01:27,768 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:27,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:27,769 INFO L85 PathProgramCache]: Analyzing trace with hash 54463929, now seen corresponding path program 5 times [2022-04-18 19:01:27,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:27,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800986075] [2022-04-18 19:01:27,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:27,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:29,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:29,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800986075] [2022-04-18 19:01:29,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800986075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:29,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:29,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:01:29,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209677585] [2022-04-18 19:01:29,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:29,068 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:01:29,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:29,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:01:29,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:01:29,069 INFO L87 Difference]: Start difference. First operand 17883 states and 38352 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:30,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:30,710 INFO L93 Difference]: Finished difference Result 29013 states and 60607 transitions. [2022-04-18 19:01:30,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:01:30,711 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:30,755 INFO L225 Difference]: With dead ends: 29013 [2022-04-18 19:01:30,755 INFO L226 Difference]: Without dead ends: 29013 [2022-04-18 19:01:30,756 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:01:30,756 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 724 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:30,756 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 343 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:01:30,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29013 states. [2022-04-18 19:01:31,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29013 to 18802. [2022-04-18 19:01:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18802 states, 18759 states have (on average 2.1480889173196864) internal successors, (40296), 18801 states have internal predecessors, (40296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18802 states to 18802 states and 40296 transitions. [2022-04-18 19:01:31,067 INFO L78 Accepts]: Start accepts. Automaton has 18802 states and 40296 transitions. Word has length 31 [2022-04-18 19:01:31,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:31,067 INFO L478 AbstractCegarLoop]: Abstraction has 18802 states and 40296 transitions. [2022-04-18 19:01:31,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:31,067 INFO L276 IsEmpty]: Start isEmpty. Operand 18802 states and 40296 transitions. [2022-04-18 19:01:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:31,071 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:31,071 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:31,071 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-18 19:01:31,071 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:31,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:31,072 INFO L85 PathProgramCache]: Analyzing trace with hash 911640239, now seen corresponding path program 6 times [2022-04-18 19:01:31,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:31,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492176787] [2022-04-18 19:01:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:31,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:32,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:32,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:32,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492176787] [2022-04-18 19:01:32,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492176787] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:32,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:32,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:32,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191707750] [2022-04-18 19:01:32,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:32,067 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:32,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:32,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:32,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:32,068 INFO L87 Difference]: Start difference. First operand 18802 states and 40296 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:33,532 INFO L93 Difference]: Finished difference Result 27824 states and 58053 transitions. [2022-04-18 19:01:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:01:33,532 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:33,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:33,576 INFO L225 Difference]: With dead ends: 27824 [2022-04-18 19:01:33,577 INFO L226 Difference]: Without dead ends: 27824 [2022-04-18 19:01:33,577 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:01:33,577 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 894 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:33,578 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [894 Valid, 335 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:01:33,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27824 states. [2022-04-18 19:01:33,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27824 to 18692. [2022-04-18 19:01:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18692 states, 18649 states have (on average 2.148962410853129) internal successors, (40076), 18691 states have internal predecessors, (40076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:33,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18692 states to 18692 states and 40076 transitions. [2022-04-18 19:01:33,882 INFO L78 Accepts]: Start accepts. Automaton has 18692 states and 40076 transitions. Word has length 31 [2022-04-18 19:01:33,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:33,882 INFO L478 AbstractCegarLoop]: Abstraction has 18692 states and 40076 transitions. [2022-04-18 19:01:33,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 18692 states and 40076 transitions. [2022-04-18 19:01:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:33,886 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:33,886 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:33,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-18 19:01:33,886 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash 485681049, now seen corresponding path program 7 times [2022-04-18 19:01:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:33,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150067778] [2022-04-18 19:01:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:33,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:34,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:34,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150067778] [2022-04-18 19:01:34,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150067778] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:34,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:34,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:34,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067649277] [2022-04-18 19:01:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:34,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:34,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:34,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:34,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:34,650 INFO L87 Difference]: Start difference. First operand 18692 states and 40076 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:36,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:36,059 INFO L93 Difference]: Finished difference Result 26230 states and 54791 transitions. [2022-04-18 19:01:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:01:36,060 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:36,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:36,103 INFO L225 Difference]: With dead ends: 26230 [2022-04-18 19:01:36,103 INFO L226 Difference]: Without dead ends: 26230 [2022-04-18 19:01:36,103 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:01:36,103 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 833 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:36,104 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [833 Valid, 339 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:01:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26230 states. [2022-04-18 19:01:36,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26230 to 17969. [2022-04-18 19:01:36,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17969 states, 17926 states have (on average 2.1487225259399754) internal successors, (38518), 17968 states have internal predecessors, (38518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17969 states to 17969 states and 38518 transitions. [2022-04-18 19:01:36,399 INFO L78 Accepts]: Start accepts. Automaton has 17969 states and 38518 transitions. Word has length 31 [2022-04-18 19:01:36,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:36,400 INFO L478 AbstractCegarLoop]: Abstraction has 17969 states and 38518 transitions. [2022-04-18 19:01:36,400 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 17969 states and 38518 transitions. [2022-04-18 19:01:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:36,404 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:36,404 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:36,404 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-18 19:01:36,404 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:36,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash 309069741, now seen corresponding path program 8 times [2022-04-18 19:01:36,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:36,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314790097] [2022-04-18 19:01:36,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:36,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:37,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:37,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314790097] [2022-04-18 19:01:37,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314790097] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:37,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:37,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:01:37,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909944399] [2022-04-18 19:01:37,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:37,669 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:01:37,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:01:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:01:37,669 INFO L87 Difference]: Start difference. First operand 17969 states and 38518 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:39,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:39,329 INFO L93 Difference]: Finished difference Result 23604 states and 49371 transitions. [2022-04-18 19:01:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:01:39,330 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:39,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:39,372 INFO L225 Difference]: With dead ends: 23604 [2022-04-18 19:01:39,372 INFO L226 Difference]: Without dead ends: 23604 [2022-04-18 19:01:39,372 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:01:39,373 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 776 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:39,373 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [776 Valid, 373 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:01:39,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23604 states. [2022-04-18 19:01:39,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23604 to 17254. [2022-04-18 19:01:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17254 states, 17211 states have (on average 2.140956365115333) internal successors, (36848), 17253 states have internal predecessors, (36848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:39,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17254 states to 17254 states and 36848 transitions. [2022-04-18 19:01:39,653 INFO L78 Accepts]: Start accepts. Automaton has 17254 states and 36848 transitions. Word has length 31 [2022-04-18 19:01:39,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:39,653 INFO L478 AbstractCegarLoop]: Abstraction has 17254 states and 36848 transitions. [2022-04-18 19:01:39,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:39,653 INFO L276 IsEmpty]: Start isEmpty. Operand 17254 states and 36848 transitions. [2022-04-18 19:01:39,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:39,656 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:39,656 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:39,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-18 19:01:39,657 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:39,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:39,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1166246051, now seen corresponding path program 9 times [2022-04-18 19:01:39,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:39,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250286074] [2022-04-18 19:01:39,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:39,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:40,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:40,693 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:40,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250286074] [2022-04-18 19:01:40,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250286074] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:40,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:40,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:40,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840527466] [2022-04-18 19:01:40,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:40,694 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:40,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:40,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:40,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:40,695 INFO L87 Difference]: Start difference. First operand 17254 states and 36848 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:41,946 INFO L93 Difference]: Finished difference Result 21962 states and 45891 transitions. [2022-04-18 19:01:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:01:41,947 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:41,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:41,973 INFO L225 Difference]: With dead ends: 21962 [2022-04-18 19:01:41,973 INFO L226 Difference]: Without dead ends: 21962 [2022-04-18 19:01:41,974 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:01:41,974 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 681 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:41,974 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [681 Valid, 362 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:01:41,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21962 states. [2022-04-18 19:01:42,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21962 to 17143. [2022-04-18 19:01:42,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17143 states, 17100 states have (on average 2.141169590643275) internal successors, (36614), 17142 states have internal predecessors, (36614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:42,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17143 states to 17143 states and 36614 transitions. [2022-04-18 19:01:42,214 INFO L78 Accepts]: Start accepts. Automaton has 17143 states and 36614 transitions. Word has length 31 [2022-04-18 19:01:42,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:42,214 INFO L478 AbstractCegarLoop]: Abstraction has 17143 states and 36614 transitions. [2022-04-18 19:01:42,215 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:42,215 INFO L276 IsEmpty]: Start isEmpty. Operand 17143 states and 36614 transitions. [2022-04-18 19:01:42,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:42,218 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:42,218 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:42,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-18 19:01:42,218 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:42,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:42,219 INFO L85 PathProgramCache]: Analyzing trace with hash 740286861, now seen corresponding path program 10 times [2022-04-18 19:01:42,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:42,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305283162] [2022-04-18 19:01:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:42,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:43,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:43,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305283162] [2022-04-18 19:01:43,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305283162] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:43,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:43,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:43,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983535675] [2022-04-18 19:01:43,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:43,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:43,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:43,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:43,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:43,031 INFO L87 Difference]: Start difference. First operand 17143 states and 36614 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:44,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:44,317 INFO L93 Difference]: Finished difference Result 22430 states and 46827 transitions. [2022-04-18 19:01:44,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:01:44,317 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:44,350 INFO L225 Difference]: With dead ends: 22430 [2022-04-18 19:01:44,350 INFO L226 Difference]: Without dead ends: 22430 [2022-04-18 19:01:44,351 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:01:44,351 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 646 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:44,351 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [646 Valid, 365 Invalid, 1960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:01:44,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22430 states. [2022-04-18 19:01:44,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22430 to 17032. [2022-04-18 19:01:44,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17032 states, 16989 states have (on average 2.141385602448643) internal successors, (36380), 17031 states have internal predecessors, (36380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:44,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17032 states to 17032 states and 36380 transitions. [2022-04-18 19:01:44,606 INFO L78 Accepts]: Start accepts. Automaton has 17032 states and 36380 transitions. Word has length 31 [2022-04-18 19:01:44,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:44,606 INFO L478 AbstractCegarLoop]: Abstraction has 17032 states and 36380 transitions. [2022-04-18 19:01:44,606 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:44,606 INFO L276 IsEmpty]: Start isEmpty. Operand 17032 states and 36380 transitions. [2022-04-18 19:01:44,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:44,609 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:44,609 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:44,609 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-18 19:01:44,610 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:44,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1883576803, now seen corresponding path program 11 times [2022-04-18 19:01:44,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:44,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793787956] [2022-04-18 19:01:44,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:44,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:45,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:45,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793787956] [2022-04-18 19:01:45,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793787956] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:45,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:45,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:45,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076281970] [2022-04-18 19:01:45,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:45,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:45,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:45,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:45,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:45,264 INFO L87 Difference]: Start difference. First operand 17032 states and 36380 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:47,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:47,380 INFO L93 Difference]: Finished difference Result 22957 states and 48638 transitions. [2022-04-18 19:01:47,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:01:47,381 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:47,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:47,418 INFO L225 Difference]: With dead ends: 22957 [2022-04-18 19:01:47,418 INFO L226 Difference]: Without dead ends: 22957 [2022-04-18 19:01:47,419 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=259, Invalid=671, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:01:47,419 INFO L913 BasicCegarLoop]: 82 mSDtfsCounter, 334 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:47,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 408 Invalid, 3441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 3115 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:01:47,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22957 states. [2022-04-18 19:01:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22957 to 18414. [2022-04-18 19:01:47,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18414 states, 18371 states have (on average 2.138098089380001) internal successors, (39279), 18413 states have internal predecessors, (39279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18414 states to 18414 states and 39279 transitions. [2022-04-18 19:01:47,670 INFO L78 Accepts]: Start accepts. Automaton has 18414 states and 39279 transitions. Word has length 31 [2022-04-18 19:01:47,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:47,670 INFO L478 AbstractCegarLoop]: Abstraction has 18414 states and 39279 transitions. [2022-04-18 19:01:47,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 18414 states and 39279 transitions. [2022-04-18 19:01:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:47,674 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:47,674 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:47,674 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-18 19:01:47,674 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:47,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:47,675 INFO L85 PathProgramCache]: Analyzing trace with hash -817044921, now seen corresponding path program 12 times [2022-04-18 19:01:47,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:47,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276357100] [2022-04-18 19:01:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:47,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:47,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:47,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276357100] [2022-04-18 19:01:47,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276357100] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:47,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:47,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:01:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054040578] [2022-04-18 19:01:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:47,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:01:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:01:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:01:47,956 INFO L87 Difference]: Start difference. First operand 18414 states and 39279 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:49,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:49,105 INFO L93 Difference]: Finished difference Result 22643 states and 47379 transitions. [2022-04-18 19:01:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:01:49,105 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:49,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:49,139 INFO L225 Difference]: With dead ends: 22643 [2022-04-18 19:01:49,139 INFO L226 Difference]: Without dead ends: 22643 [2022-04-18 19:01:49,139 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:01:49,139 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 634 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:49,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 360 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:01:49,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22643 states. [2022-04-18 19:01:49,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22643 to 15865. [2022-04-18 19:01:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15865 states, 15822 states have (on average 2.14840096068765) internal successors, (33992), 15864 states have internal predecessors, (33992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:49,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15865 states to 15865 states and 33992 transitions. [2022-04-18 19:01:49,374 INFO L78 Accepts]: Start accepts. Automaton has 15865 states and 33992 transitions. Word has length 31 [2022-04-18 19:01:49,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:49,374 INFO L478 AbstractCegarLoop]: Abstraction has 15865 states and 33992 transitions. [2022-04-18 19:01:49,374 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:49,374 INFO L276 IsEmpty]: Start isEmpty. Operand 15865 states and 33992 transitions. [2022-04-18 19:01:49,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:49,377 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:49,377 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:49,377 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-18 19:01:49,377 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:49,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:49,378 INFO L85 PathProgramCache]: Analyzing trace with hash -861058044, now seen corresponding path program 1 times [2022-04-18 19:01:49,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:49,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585522822] [2022-04-18 19:01:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:49,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:49,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:49,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585522822] [2022-04-18 19:01:49,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585522822] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:49,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:49,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:01:49,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847503490] [2022-04-18 19:01:49,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:49,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:01:49,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:49,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:01:49,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:01:49,599 INFO L87 Difference]: Start difference. First operand 15865 states and 33992 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:50,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:50,717 INFO L93 Difference]: Finished difference Result 18264 states and 38620 transitions. [2022-04-18 19:01:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:01:50,718 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:50,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:50,744 INFO L225 Difference]: With dead ends: 18264 [2022-04-18 19:01:50,744 INFO L226 Difference]: Without dead ends: 18264 [2022-04-18 19:01:50,744 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:01:50,745 INFO L913 BasicCegarLoop]: 93 mSDtfsCounter, 687 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:50,745 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 344 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:01:50,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18264 states. [2022-04-18 19:01:50,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18264 to 15838. [2022-04-18 19:01:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15838 states, 15795 states have (on average 2.151630262741374) internal successors, (33985), 15837 states have internal predecessors, (33985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:50,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15838 states to 15838 states and 33985 transitions. [2022-04-18 19:01:50,983 INFO L78 Accepts]: Start accepts. Automaton has 15838 states and 33985 transitions. Word has length 31 [2022-04-18 19:01:50,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:50,984 INFO L478 AbstractCegarLoop]: Abstraction has 15838 states and 33985 transitions. [2022-04-18 19:01:50,984 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:50,984 INFO L276 IsEmpty]: Start isEmpty. Operand 15838 states and 33985 transitions. [2022-04-18 19:01:50,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:50,987 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:50,987 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:50,987 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-18 19:01:50,987 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:50,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:50,988 INFO L85 PathProgramCache]: Analyzing trace with hash 338259350, now seen corresponding path program 9 times [2022-04-18 19:01:50,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:50,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467233287] [2022-04-18 19:01:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:50,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:51,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:51,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:51,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467233287] [2022-04-18 19:01:51,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467233287] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:51,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:51,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:51,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976361950] [2022-04-18 19:01:51,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:51,435 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:51,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:51,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:51,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:51,436 INFO L87 Difference]: Start difference. First operand 15838 states and 33985 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:53,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:53,952 INFO L93 Difference]: Finished difference Result 19501 states and 41471 transitions. [2022-04-18 19:01:53,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:01:53,952 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:53,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:53,981 INFO L225 Difference]: With dead ends: 19501 [2022-04-18 19:01:53,981 INFO L226 Difference]: Without dead ends: 19501 [2022-04-18 19:01:53,982 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:01:53,982 INFO L913 BasicCegarLoop]: 81 mSDtfsCounter, 448 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 3103 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 3491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 3103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:53,982 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 415 Invalid, 3491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 3103 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:01:54,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19501 states. [2022-04-18 19:01:54,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19501 to 16723. [2022-04-18 19:01:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16723 states, 16680 states have (on average 2.1512589928057553) internal successors, (35883), 16722 states have internal predecessors, (35883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:54,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16723 states to 16723 states and 35883 transitions. [2022-04-18 19:01:54,206 INFO L78 Accepts]: Start accepts. Automaton has 16723 states and 35883 transitions. Word has length 31 [2022-04-18 19:01:54,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:54,206 INFO L478 AbstractCegarLoop]: Abstraction has 16723 states and 35883 transitions. [2022-04-18 19:01:54,206 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:54,206 INFO L276 IsEmpty]: Start isEmpty. Operand 16723 states and 35883 transitions. [2022-04-18 19:01:54,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:54,209 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:54,209 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:54,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-18 19:01:54,209 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:54,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:54,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1906072597, now seen corresponding path program 9 times [2022-04-18 19:01:54,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:54,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147966741] [2022-04-18 19:01:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:54,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:54,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:54,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:54,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147966741] [2022-04-18 19:01:54,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147966741] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:54,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:54,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:01:54,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855823088] [2022-04-18 19:01:54,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:54,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:01:54,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:54,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:01:54,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:01:54,801 INFO L87 Difference]: Start difference. First operand 16723 states and 35883 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:57,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:57,563 INFO L93 Difference]: Finished difference Result 18492 states and 39417 transitions. [2022-04-18 19:01:57,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:01:57,565 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:01:57,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:57,591 INFO L225 Difference]: With dead ends: 18492 [2022-04-18 19:01:57,591 INFO L226 Difference]: Without dead ends: 18492 [2022-04-18 19:01:57,592 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:01:57,592 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 674 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 4271 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 4386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 4271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:57,592 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [674 Valid, 755 Invalid, 4386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 4271 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:01:57,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18492 states. [2022-04-18 19:01:57,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18492 to 16692. [2022-04-18 19:01:57,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16692 states, 16649 states have (on average 2.1511201873986425) internal successors, (35814), 16691 states have internal predecessors, (35814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16692 states to 16692 states and 35814 transitions. [2022-04-18 19:01:57,803 INFO L78 Accepts]: Start accepts. Automaton has 16692 states and 35814 transitions. Word has length 31 [2022-04-18 19:01:57,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:57,803 INFO L478 AbstractCegarLoop]: Abstraction has 16692 states and 35814 transitions. [2022-04-18 19:01:57,803 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:57,803 INFO L276 IsEmpty]: Start isEmpty. Operand 16692 states and 35814 transitions. [2022-04-18 19:01:57,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:01:57,806 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:57,806 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:57,806 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-18 19:01:57,806 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:01:57,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:57,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1064598500, now seen corresponding path program 10 times [2022-04-18 19:01:57,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:57,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614804516] [2022-04-18 19:01:57,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:57,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:58,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:58,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:58,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614804516] [2022-04-18 19:01:58,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614804516] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:58,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:58,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:01:58,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530718336] [2022-04-18 19:01:58,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:58,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:01:58,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:58,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:01:58,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:58,255 INFO L87 Difference]: Start difference. First operand 16692 states and 35814 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:01,422 INFO L93 Difference]: Finished difference Result 26492 states and 56115 transitions. [2022-04-18 19:02:01,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:02:01,422 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:01,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:01,462 INFO L225 Difference]: With dead ends: 26492 [2022-04-18 19:02:01,462 INFO L226 Difference]: Without dead ends: 26492 [2022-04-18 19:02:01,462 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:02:01,463 INFO L913 BasicCegarLoop]: 92 mSDtfsCounter, 491 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 3908 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 4333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 3908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:01,463 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [491 Valid, 512 Invalid, 4333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 3908 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:02:01,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26492 states. [2022-04-18 19:02:01,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26492 to 17021. [2022-04-18 19:02:01,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17021 states, 16978 states have (on average 2.154140652609259) internal successors, (36573), 17020 states have internal predecessors, (36573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17021 states to 17021 states and 36573 transitions. [2022-04-18 19:02:01,701 INFO L78 Accepts]: Start accepts. Automaton has 17021 states and 36573 transitions. Word has length 31 [2022-04-18 19:02:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:01,702 INFO L478 AbstractCegarLoop]: Abstraction has 17021 states and 36573 transitions. [2022-04-18 19:02:01,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 17021 states and 36573 transitions. [2022-04-18 19:02:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:01,705 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:01,705 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:01,705 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-18 19:02:01,706 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:01,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:01,706 INFO L85 PathProgramCache]: Analyzing trace with hash 986036849, now seen corresponding path program 10 times [2022-04-18 19:02:01,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:01,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213853948] [2022-04-18 19:02:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:01,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:02,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:02,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213853948] [2022-04-18 19:02:02,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213853948] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:02,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:02,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:02,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833860073] [2022-04-18 19:02:02,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:02,316 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:02,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:02,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:02,317 INFO L87 Difference]: Start difference. First operand 17021 states and 36573 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:05,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:05,154 INFO L93 Difference]: Finished difference Result 20326 states and 43239 transitions. [2022-04-18 19:02:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:02:05,154 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:05,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:05,182 INFO L225 Difference]: With dead ends: 20326 [2022-04-18 19:02:05,182 INFO L226 Difference]: Without dead ends: 20326 [2022-04-18 19:02:05,183 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=201, Invalid=791, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:02:05,183 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 754 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 4071 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 4164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 4071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:05,183 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 949 Invalid, 4164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 4071 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:02:05,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20326 states. [2022-04-18 19:02:05,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20326 to 16787. [2022-04-18 19:02:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16787 states, 16744 states have (on average 2.1513975155279503) internal successors, (36023), 16786 states have internal predecessors, (36023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:05,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16787 states to 16787 states and 36023 transitions. [2022-04-18 19:02:05,398 INFO L78 Accepts]: Start accepts. Automaton has 16787 states and 36023 transitions. Word has length 31 [2022-04-18 19:02:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:05,398 INFO L478 AbstractCegarLoop]: Abstraction has 16787 states and 36023 transitions. [2022-04-18 19:02:05,398 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 16787 states and 36023 transitions. [2022-04-18 19:02:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:05,401 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:05,401 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:05,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-18 19:02:05,401 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:05,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:05,402 INFO L85 PathProgramCache]: Analyzing trace with hash 508373076, now seen corresponding path program 11 times [2022-04-18 19:02:05,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:05,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109441030] [2022-04-18 19:02:05,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:05,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:06,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:06,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109441030] [2022-04-18 19:02:06,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109441030] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:06,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:06,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:06,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181297051] [2022-04-18 19:02:06,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:06,112 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:06,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:06,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:06,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:06,113 INFO L87 Difference]: Start difference. First operand 16787 states and 36023 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:08,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:08,154 INFO L93 Difference]: Finished difference Result 22395 states and 47537 transitions. [2022-04-18 19:02:08,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:02:08,155 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:08,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:08,192 INFO L225 Difference]: With dead ends: 22395 [2022-04-18 19:02:08,192 INFO L226 Difference]: Without dead ends: 22395 [2022-04-18 19:02:08,193 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=296, Invalid=696, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:02:08,193 INFO L913 BasicCegarLoop]: 90 mSDtfsCounter, 569 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 2495 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 2495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:08,193 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 436 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 2495 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:02:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22395 states. [2022-04-18 19:02:08,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22395 to 17594. [2022-04-18 19:02:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17594 states, 17551 states have (on average 2.1530966896473136) internal successors, (37789), 17593 states have internal predecessors, (37789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17594 states to 17594 states and 37789 transitions. [2022-04-18 19:02:08,458 INFO L78 Accepts]: Start accepts. Automaton has 17594 states and 37789 transitions. Word has length 31 [2022-04-18 19:02:08,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:08,459 INFO L478 AbstractCegarLoop]: Abstraction has 17594 states and 37789 transitions. [2022-04-18 19:02:08,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:08,459 INFO L276 IsEmpty]: Start isEmpty. Operand 17594 states and 37789 transitions. [2022-04-18 19:02:08,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:08,462 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:08,463 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:08,463 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-18 19:02:08,463 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:08,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:08,463 INFO L85 PathProgramCache]: Analyzing trace with hash -530577216, now seen corresponding path program 12 times [2022-04-18 19:02:08,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:08,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009379847] [2022-04-18 19:02:08,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:08,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:09,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:09,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009379847] [2022-04-18 19:02:09,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009379847] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:09,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:09,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:09,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262648979] [2022-04-18 19:02:09,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:09,522 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:09,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:09,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:09,522 INFO L87 Difference]: Start difference. First operand 17594 states and 37789 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:12,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:12,286 INFO L93 Difference]: Finished difference Result 22389 states and 47549 transitions. [2022-04-18 19:02:12,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-04-18 19:02:12,286 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:12,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:12,318 INFO L225 Difference]: With dead ends: 22389 [2022-04-18 19:02:12,319 INFO L226 Difference]: Without dead ends: 22389 [2022-04-18 19:02:12,319 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=374, Invalid=1432, Unknown=0, NotChecked=0, Total=1806 [2022-04-18 19:02:12,319 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 617 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 3312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:12,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 1051 Invalid, 3312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:02:12,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22389 states. [2022-04-18 19:02:12,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22389 to 18020. [2022-04-18 19:02:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18020 states, 17977 states have (on average 2.1514713244701564) internal successors, (38677), 18019 states have internal predecessors, (38677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:12,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18020 states to 18020 states and 38677 transitions. [2022-04-18 19:02:12,600 INFO L78 Accepts]: Start accepts. Automaton has 18020 states and 38677 transitions. Word has length 31 [2022-04-18 19:02:12,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:12,600 INFO L478 AbstractCegarLoop]: Abstraction has 18020 states and 38677 transitions. [2022-04-18 19:02:12,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:12,600 INFO L276 IsEmpty]: Start isEmpty. Operand 18020 states and 38677 transitions. [2022-04-18 19:02:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:12,603 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:12,603 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:12,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-18 19:02:12,603 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:12,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:12,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1579173608, now seen corresponding path program 13 times [2022-04-18 19:02:12,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:12,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516113755] [2022-04-18 19:02:12,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:12,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:13,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:13,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516113755] [2022-04-18 19:02:13,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516113755] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:13,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:13,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:13,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254383398] [2022-04-18 19:02:13,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:13,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:13,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:13,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:13,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:13,309 INFO L87 Difference]: Start difference. First operand 18020 states and 38677 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:15,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:15,452 INFO L93 Difference]: Finished difference Result 22559 states and 47831 transitions. [2022-04-18 19:02:15,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:02:15,453 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:15,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:15,490 INFO L225 Difference]: With dead ends: 22559 [2022-04-18 19:02:15,491 INFO L226 Difference]: Without dead ends: 22559 [2022-04-18 19:02:15,491 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=713, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:02:15,492 INFO L913 BasicCegarLoop]: 90 mSDtfsCounter, 586 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 3008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:15,492 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 386 Invalid, 3008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 2624 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:02:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22559 states. [2022-04-18 19:02:15,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22559 to 18072. [2022-04-18 19:02:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18072 states, 18029 states have (on average 2.1510899106994286) internal successors, (38782), 18071 states have internal predecessors, (38782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18072 states to 18072 states and 38782 transitions. [2022-04-18 19:02:15,791 INFO L78 Accepts]: Start accepts. Automaton has 18072 states and 38782 transitions. Word has length 31 [2022-04-18 19:02:15,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:15,792 INFO L478 AbstractCegarLoop]: Abstraction has 18072 states and 38782 transitions. [2022-04-18 19:02:15,792 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 18072 states and 38782 transitions. [2022-04-18 19:02:15,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:15,795 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:15,795 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:15,795 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-18 19:02:15,795 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:15,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash -168822532, now seen corresponding path program 14 times [2022-04-18 19:02:15,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:15,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416047122] [2022-04-18 19:02:15,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:15,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:16,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:16,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416047122] [2022-04-18 19:02:16,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416047122] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:16,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:16,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:16,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353964479] [2022-04-18 19:02:16,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:16,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:16,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:16,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:16,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:16,947 INFO L87 Difference]: Start difference. First operand 18072 states and 38782 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:20,208 INFO L93 Difference]: Finished difference Result 23227 states and 49267 transitions. [2022-04-18 19:02:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-04-18 19:02:20,209 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:20,248 INFO L225 Difference]: With dead ends: 23227 [2022-04-18 19:02:20,248 INFO L226 Difference]: Without dead ends: 23227 [2022-04-18 19:02:20,249 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=399, Invalid=1581, Unknown=0, NotChecked=0, Total=1980 [2022-04-18 19:02:20,249 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 598 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 3469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:20,249 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [598 Valid, 1051 Invalid, 3469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:02:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23227 states. [2022-04-18 19:02:20,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23227 to 18143. [2022-04-18 19:02:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18143 states, 18100 states have (on average 2.150718232044199) internal successors, (38928), 18142 states have internal predecessors, (38928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18143 states to 18143 states and 38928 transitions. [2022-04-18 19:02:20,537 INFO L78 Accepts]: Start accepts. Automaton has 18143 states and 38928 transitions. Word has length 31 [2022-04-18 19:02:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:20,538 INFO L478 AbstractCegarLoop]: Abstraction has 18143 states and 38928 transitions. [2022-04-18 19:02:20,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:20,538 INFO L276 IsEmpty]: Start isEmpty. Operand 18143 states and 38928 transitions. [2022-04-18 19:02:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:20,541 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:20,541 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:20,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-18 19:02:20,541 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:20,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:20,542 INFO L85 PathProgramCache]: Analyzing trace with hash 2104060116, now seen corresponding path program 15 times [2022-04-18 19:02:20,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:20,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980418674] [2022-04-18 19:02:20,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:20,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:20,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:20,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980418674] [2022-04-18 19:02:20,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980418674] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:20,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:20,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:20,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432981109] [2022-04-18 19:02:20,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:20,914 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:20,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:20,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:20,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:20,915 INFO L87 Difference]: Start difference. First operand 18143 states and 38928 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:22,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:22,778 INFO L93 Difference]: Finished difference Result 23151 states and 49050 transitions. [2022-04-18 19:02:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:02:22,778 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:22,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:22,814 INFO L225 Difference]: With dead ends: 23151 [2022-04-18 19:02:22,814 INFO L226 Difference]: Without dead ends: 23151 [2022-04-18 19:02:22,815 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:02:22,815 INFO L913 BasicCegarLoop]: 89 mSDtfsCounter, 626 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 2222 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 2222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:22,815 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 473 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [346 Valid, 2222 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:02:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23151 states. [2022-04-18 19:02:23,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23151 to 18155. [2022-04-18 19:02:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18155 states, 18112 states have (on average 2.150894434628975) internal successors, (38957), 18154 states have internal predecessors, (38957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18155 states to 18155 states and 38957 transitions. [2022-04-18 19:02:23,088 INFO L78 Accepts]: Start accepts. Automaton has 18155 states and 38957 transitions. Word has length 31 [2022-04-18 19:02:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:23,088 INFO L478 AbstractCegarLoop]: Abstraction has 18155 states and 38957 transitions. [2022-04-18 19:02:23,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 18155 states and 38957 transitions. [2022-04-18 19:02:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:23,092 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:23,092 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:23,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-18 19:02:23,092 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:23,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:23,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1441651633, now seen corresponding path program 11 times [2022-04-18 19:02:23,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:23,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580665394] [2022-04-18 19:02:23,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:23,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:23,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:23,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580665394] [2022-04-18 19:02:23,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580665394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:23,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:23,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:23,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053385815] [2022-04-18 19:02:23,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:23,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:23,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:23,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:23,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:23,732 INFO L87 Difference]: Start difference. First operand 18155 states and 38957 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:25,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:25,919 INFO L93 Difference]: Finished difference Result 20915 states and 44512 transitions. [2022-04-18 19:02:25,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-18 19:02:25,920 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:25,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:25,951 INFO L225 Difference]: With dead ends: 20915 [2022-04-18 19:02:25,951 INFO L226 Difference]: Without dead ends: 20915 [2022-04-18 19:02:25,951 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:02:25,952 INFO L913 BasicCegarLoop]: 105 mSDtfsCounter, 642 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 3730 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 3772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:25,952 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [642 Valid, 639 Invalid, 3772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3730 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:02:25,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20915 states. [2022-04-18 19:02:26,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20915 to 17964. [2022-04-18 19:02:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17964 states, 17921 states have (on average 2.147145806595614) internal successors, (38479), 17963 states have internal predecessors, (38479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:26,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17964 states to 17964 states and 38479 transitions. [2022-04-18 19:02:26,188 INFO L78 Accepts]: Start accepts. Automaton has 17964 states and 38479 transitions. Word has length 31 [2022-04-18 19:02:26,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:26,188 INFO L478 AbstractCegarLoop]: Abstraction has 17964 states and 38479 transitions. [2022-04-18 19:02:26,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 17964 states and 38479 transitions. [2022-04-18 19:02:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:26,191 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:26,191 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:26,191 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-18 19:02:26,191 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:26,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:26,192 INFO L85 PathProgramCache]: Analyzing trace with hash -480785118, now seen corresponding path program 16 times [2022-04-18 19:02:26,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:26,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348683449] [2022-04-18 19:02:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:26,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:26,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:26,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348683449] [2022-04-18 19:02:26,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348683449] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:26,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:26,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:26,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318211612] [2022-04-18 19:02:26,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:26,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:26,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:26,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:26,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:26,774 INFO L87 Difference]: Start difference. First operand 17964 states and 38479 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:30,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:30,566 INFO L93 Difference]: Finished difference Result 23860 states and 50466 transitions. [2022-04-18 19:02:30,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-04-18 19:02:30,566 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:30,604 INFO L225 Difference]: With dead ends: 23860 [2022-04-18 19:02:30,604 INFO L226 Difference]: Without dead ends: 23860 [2022-04-18 19:02:30,604 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=490, Invalid=1862, Unknown=0, NotChecked=0, Total=2352 [2022-04-18 19:02:30,605 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 700 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 4221 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 4552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 4221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:30,605 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 1436 Invalid, 4552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 4221 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:02:30,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23860 states. [2022-04-18 19:02:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23860 to 18367. [2022-04-18 19:02:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18367 states, 18324 states have (on average 2.1456559703121587) internal successors, (39317), 18366 states have internal predecessors, (39317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:30,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18367 states to 18367 states and 39317 transitions. [2022-04-18 19:02:30,891 INFO L78 Accepts]: Start accepts. Automaton has 18367 states and 39317 transitions. Word has length 31 [2022-04-18 19:02:30,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:30,891 INFO L478 AbstractCegarLoop]: Abstraction has 18367 states and 39317 transitions. [2022-04-18 19:02:30,891 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:30,891 INFO L276 IsEmpty]: Start isEmpty. Operand 18367 states and 39317 transitions. [2022-04-18 19:02:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:30,895 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:30,895 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:30,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-18 19:02:30,895 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:30,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:30,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1143193601, now seen corresponding path program 12 times [2022-04-18 19:02:30,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:30,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824135301] [2022-04-18 19:02:30,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:30,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:31,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:31,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824135301] [2022-04-18 19:02:31,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824135301] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:31,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:31,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:31,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349607118] [2022-04-18 19:02:31,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:31,475 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:31,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:31,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:31,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:31,475 INFO L87 Difference]: Start difference. First operand 18367 states and 39317 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:34,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:34,542 INFO L93 Difference]: Finished difference Result 22043 states and 46726 transitions. [2022-04-18 19:02:34,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:02:34,542 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:34,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:34,578 INFO L225 Difference]: With dead ends: 22043 [2022-04-18 19:02:34,579 INFO L226 Difference]: Without dead ends: 22043 [2022-04-18 19:02:34,579 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:02:34,579 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 629 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 4197 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 4260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:34,579 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [629 Valid, 1262 Invalid, 4260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4197 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:02:34,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22043 states. [2022-04-18 19:02:34,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22043 to 18361. [2022-04-18 19:02:34,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18361 states, 18318 states have (on average 2.1455399061032865) internal successors, (39302), 18360 states have internal predecessors, (39302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:34,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18361 states to 18361 states and 39302 transitions. [2022-04-18 19:02:34,932 INFO L78 Accepts]: Start accepts. Automaton has 18361 states and 39302 transitions. Word has length 31 [2022-04-18 19:02:34,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:34,932 INFO L478 AbstractCegarLoop]: Abstraction has 18361 states and 39302 transitions. [2022-04-18 19:02:34,932 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 18361 states and 39302 transitions. [2022-04-18 19:02:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:34,935 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:34,935 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:34,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-18 19:02:34,935 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:34,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:34,936 INFO L85 PathProgramCache]: Analyzing trace with hash 125160137, now seen corresponding path program 13 times [2022-04-18 19:02:34,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:34,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026155961] [2022-04-18 19:02:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:34,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:35,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:35,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026155961] [2022-04-18 19:02:35,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026155961] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:35,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:35,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:35,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532834094] [2022-04-18 19:02:35,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:35,601 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:35,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:35,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:35,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:35,601 INFO L87 Difference]: Start difference. First operand 18361 states and 39302 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:38,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:38,357 INFO L93 Difference]: Finished difference Result 21391 states and 45427 transitions. [2022-04-18 19:02:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:02:38,358 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:38,392 INFO L225 Difference]: With dead ends: 21391 [2022-04-18 19:02:38,393 INFO L226 Difference]: Without dead ends: 21391 [2022-04-18 19:02:38,393 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:02:38,393 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 540 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 3983 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 4041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:38,393 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [540 Valid, 1169 Invalid, 4041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3983 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:02:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21391 states. [2022-04-18 19:02:38,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21391 to 18367. [2022-04-18 19:02:38,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18367 states, 18324 states have (on average 2.145819690024012) internal successors, (39320), 18366 states have internal predecessors, (39320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:38,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18367 states to 18367 states and 39320 transitions. [2022-04-18 19:02:38,653 INFO L78 Accepts]: Start accepts. Automaton has 18367 states and 39320 transitions. Word has length 31 [2022-04-18 19:02:38,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:38,653 INFO L478 AbstractCegarLoop]: Abstraction has 18367 states and 39320 transitions. [2022-04-18 19:02:38,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:38,654 INFO L276 IsEmpty]: Start isEmpty. Operand 18367 states and 39320 transitions. [2022-04-18 19:02:38,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:38,657 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:38,657 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:38,657 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-18 19:02:38,657 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:38,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:38,657 INFO L85 PathProgramCache]: Analyzing trace with hash 136547987, now seen corresponding path program 14 times [2022-04-18 19:02:38,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:38,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178334398] [2022-04-18 19:02:38,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:38,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:39,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:39,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178334398] [2022-04-18 19:02:39,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178334398] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:39,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:39,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:39,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305077496] [2022-04-18 19:02:39,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:39,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:39,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:39,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:39,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:39,224 INFO L87 Difference]: Start difference. First operand 18367 states and 39320 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:41,956 INFO L93 Difference]: Finished difference Result 21400 states and 45443 transitions. [2022-04-18 19:02:41,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:02:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:41,984 INFO L225 Difference]: With dead ends: 21400 [2022-04-18 19:02:41,985 INFO L226 Difference]: Without dead ends: 21400 [2022-04-18 19:02:41,985 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:02:41,985 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 474 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 3950 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 4007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:41,985 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 1264 Invalid, 4007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3950 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:02:42,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21400 states. [2022-04-18 19:02:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21400 to 18365. [2022-04-18 19:02:42,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18365 states, 18322 states have (on average 2.145726449077612) internal successors, (39314), 18364 states have internal predecessors, (39314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18365 states to 18365 states and 39314 transitions. [2022-04-18 19:02:42,209 INFO L78 Accepts]: Start accepts. Automaton has 18365 states and 39314 transitions. Word has length 31 [2022-04-18 19:02:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:42,209 INFO L478 AbstractCegarLoop]: Abstraction has 18365 states and 39314 transitions. [2022-04-18 19:02:42,209 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 18365 states and 39314 transitions. [2022-04-18 19:02:42,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:42,212 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:42,212 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:42,212 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-18 19:02:42,212 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:42,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:42,213 INFO L85 PathProgramCache]: Analyzing trace with hash 381430007, now seen corresponding path program 15 times [2022-04-18 19:02:42,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:42,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126716975] [2022-04-18 19:02:42,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:42,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:42,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:42,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126716975] [2022-04-18 19:02:42,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126716975] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:42,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:42,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:42,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413095710] [2022-04-18 19:02:42,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:42,864 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:42,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:42,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:42,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:42,865 INFO L87 Difference]: Start difference. First operand 18365 states and 39314 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:45,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:45,034 INFO L93 Difference]: Finished difference Result 21412 states and 45465 transitions. [2022-04-18 19:02:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:02:45,035 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:45,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:45,073 INFO L225 Difference]: With dead ends: 21412 [2022-04-18 19:02:45,073 INFO L226 Difference]: Without dead ends: 21412 [2022-04-18 19:02:45,074 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:02:45,074 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 497 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 2957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:45,074 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 1160 Invalid, 2957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:02:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21412 states. [2022-04-18 19:02:45,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21412 to 18363. [2022-04-18 19:02:45,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18363 states, 18320 states have (on average 2.1456331877729258) internal successors, (39308), 18362 states have internal predecessors, (39308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18363 states to 18363 states and 39308 transitions. [2022-04-18 19:02:45,387 INFO L78 Accepts]: Start accepts. Automaton has 18363 states and 39308 transitions. Word has length 31 [2022-04-18 19:02:45,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:45,387 INFO L478 AbstractCegarLoop]: Abstraction has 18363 states and 39308 transitions. [2022-04-18 19:02:45,387 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:45,387 INFO L276 IsEmpty]: Start isEmpty. Operand 18363 states and 39308 transitions. [2022-04-18 19:02:45,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:45,390 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:45,390 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:45,390 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-18 19:02:45,390 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:45,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1820933475, now seen corresponding path program 16 times [2022-04-18 19:02:45,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:45,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597885008] [2022-04-18 19:02:45,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:45,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:46,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:46,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597885008] [2022-04-18 19:02:46,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597885008] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:46,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:46,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:46,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389814048] [2022-04-18 19:02:46,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:46,036 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:46,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:46,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:46,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:46,037 INFO L87 Difference]: Start difference. First operand 18363 states and 39308 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:48,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:48,135 INFO L93 Difference]: Finished difference Result 21406 states and 45450 transitions. [2022-04-18 19:02:48,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:02:48,135 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:48,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:48,170 INFO L225 Difference]: With dead ends: 21406 [2022-04-18 19:02:48,170 INFO L226 Difference]: Without dead ends: 21406 [2022-04-18 19:02:48,170 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:02:48,171 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 407 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 2608 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:48,171 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 1256 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2608 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:02:48,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21406 states. [2022-04-18 19:02:48,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21406 to 18072. [2022-04-18 19:02:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18072 states, 18029 states have (on average 2.1473736757446336) internal successors, (38715), 18071 states have internal predecessors, (38715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:48,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18072 states to 18072 states and 38715 transitions. [2022-04-18 19:02:48,439 INFO L78 Accepts]: Start accepts. Automaton has 18072 states and 38715 transitions. Word has length 31 [2022-04-18 19:02:48,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:48,439 INFO L478 AbstractCegarLoop]: Abstraction has 18072 states and 38715 transitions. [2022-04-18 19:02:48,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:48,439 INFO L276 IsEmpty]: Start isEmpty. Operand 18072 states and 38715 transitions. [2022-04-18 19:02:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:48,443 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:48,443 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:48,443 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-18 19:02:48,443 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash -148336134, now seen corresponding path program 17 times [2022-04-18 19:02:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:48,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440936209] [2022-04-18 19:02:48,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:49,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:49,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440936209] [2022-04-18 19:02:49,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440936209] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:49,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:49,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:49,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685462798] [2022-04-18 19:02:49,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:49,476 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:49,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:49,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:49,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:49,476 INFO L87 Difference]: Start difference. First operand 18072 states and 38715 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:52,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:52,535 INFO L93 Difference]: Finished difference Result 23088 states and 48911 transitions. [2022-04-18 19:02:52,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-04-18 19:02:52,535 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:52,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:52,566 INFO L225 Difference]: With dead ends: 23088 [2022-04-18 19:02:52,567 INFO L226 Difference]: Without dead ends: 23088 [2022-04-18 19:02:52,567 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2022-04-18 19:02:52,567 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 601 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 3404 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 3404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:52,567 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 1163 Invalid, 3811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 3404 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:02:52,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23088 states. [2022-04-18 19:02:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23088 to 18304. [2022-04-18 19:02:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18304 states, 18261 states have (on average 2.145884672252341) internal successors, (39186), 18303 states have internal predecessors, (39186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18304 states to 18304 states and 39186 transitions. [2022-04-18 19:02:52,794 INFO L78 Accepts]: Start accepts. Automaton has 18304 states and 39186 transitions. Word has length 31 [2022-04-18 19:02:52,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:52,794 INFO L478 AbstractCegarLoop]: Abstraction has 18304 states and 39186 transitions. [2022-04-18 19:02:52,794 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:52,795 INFO L276 IsEmpty]: Start isEmpty. Operand 18304 states and 39186 transitions. [2022-04-18 19:02:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:52,797 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:52,798 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:52,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-18 19:02:52,798 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash 213418550, now seen corresponding path program 18 times [2022-04-18 19:02:52,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:52,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676641516] [2022-04-18 19:02:52,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:52,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:53,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:53,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676641516] [2022-04-18 19:02:53,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676641516] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:53,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:53,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:53,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972352489] [2022-04-18 19:02:53,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:53,991 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:53,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:53,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:53,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:53,991 INFO L87 Difference]: Start difference. First operand 18304 states and 39186 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:57,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:57,299 INFO L93 Difference]: Finished difference Result 23812 states and 50401 transitions. [2022-04-18 19:02:57,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-04-18 19:02:57,300 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:02:57,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:57,339 INFO L225 Difference]: With dead ends: 23812 [2022-04-18 19:02:57,339 INFO L226 Difference]: Without dead ends: 23812 [2022-04-18 19:02:57,340 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=441, Invalid=1721, Unknown=0, NotChecked=0, Total=2162 [2022-04-18 19:02:57,340 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 598 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 3851 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 4304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 3851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:57,340 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [598 Valid, 1165 Invalid, 4304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 3851 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:02:57,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23812 states. [2022-04-18 19:02:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23812 to 18342. [2022-04-18 19:02:57,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18342 states, 18299 states have (on average 2.1455270779824036) internal successors, (39261), 18341 states have internal predecessors, (39261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18342 states to 18342 states and 39261 transitions. [2022-04-18 19:02:57,628 INFO L78 Accepts]: Start accepts. Automaton has 18342 states and 39261 transitions. Word has length 31 [2022-04-18 19:02:57,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:57,628 INFO L478 AbstractCegarLoop]: Abstraction has 18342 states and 39261 transitions. [2022-04-18 19:02:57,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 18342 states and 39261 transitions. [2022-04-18 19:02:57,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:02:57,632 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:57,632 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:57,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-18 19:02:57,632 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:02:57,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:57,632 INFO L85 PathProgramCache]: Analyzing trace with hash -98544036, now seen corresponding path program 19 times [2022-04-18 19:02:57,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:57,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253398678] [2022-04-18 19:02:57,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:57,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:58,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:58,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253398678] [2022-04-18 19:02:58,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253398678] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:58,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:58,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:02:58,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333604897] [2022-04-18 19:02:58,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:58,085 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:02:58,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:58,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:02:58,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:02:58,086 INFO L87 Difference]: Start difference. First operand 18342 states and 39261 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:01,401 INFO L93 Difference]: Finished difference Result 24904 states and 52596 transitions. [2022-04-18 19:03:01,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-04-18 19:03:01,405 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:01,447 INFO L225 Difference]: With dead ends: 24904 [2022-04-18 19:03:01,447 INFO L226 Difference]: Without dead ends: 24904 [2022-04-18 19:03:01,447 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=525, Invalid=2025, Unknown=0, NotChecked=0, Total=2550 [2022-04-18 19:03:01,447 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 715 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 3943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:01,448 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 1634 Invalid, 3943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 3594 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:03:01,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24904 states. [2022-04-18 19:03:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24904 to 18542. [2022-04-18 19:03:01,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18542 states, 18499 states have (on average 2.1442780690848156) internal successors, (39667), 18541 states have internal predecessors, (39667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18542 states to 18542 states and 39667 transitions. [2022-04-18 19:03:01,729 INFO L78 Accepts]: Start accepts. Automaton has 18542 states and 39667 transitions. Word has length 31 [2022-04-18 19:03:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:01,729 INFO L478 AbstractCegarLoop]: Abstraction has 18542 states and 39667 transitions. [2022-04-18 19:03:01,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 18542 states and 39667 transitions. [2022-04-18 19:03:01,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:01,738 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:01,738 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:01,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-18 19:03:01,739 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:01,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:01,739 INFO L85 PathProgramCache]: Analyzing trace with hash -760952519, now seen corresponding path program 17 times [2022-04-18 19:03:01,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:01,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187576992] [2022-04-18 19:03:01,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:01,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:02,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:02,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187576992] [2022-04-18 19:03:02,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187576992] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:02,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:02,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:02,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635342279] [2022-04-18 19:03:02,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:02,273 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:02,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:02,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:02,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:02,274 INFO L87 Difference]: Start difference. First operand 18542 states and 39667 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:05,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:05,113 INFO L93 Difference]: Finished difference Result 22786 states and 48254 transitions. [2022-04-18 19:03:05,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:03:05,113 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:05,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:05,151 INFO L225 Difference]: With dead ends: 22786 [2022-04-18 19:03:05,151 INFO L226 Difference]: Without dead ends: 22786 [2022-04-18 19:03:05,152 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:03:05,152 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 573 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 4023 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 4085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:05,152 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [573 Valid, 1385 Invalid, 4085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4023 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:03:05,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22786 states. [2022-04-18 19:03:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22786 to 18412. [2022-04-18 19:03:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18412 states, 18369 states have (on average 2.145135826664489) internal successors, (39404), 18411 states have internal predecessors, (39404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18412 states to 18412 states and 39404 transitions. [2022-04-18 19:03:05,485 INFO L78 Accepts]: Start accepts. Automaton has 18412 states and 39404 transitions. Word has length 31 [2022-04-18 19:03:05,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:05,485 INFO L478 AbstractCegarLoop]: Abstraction has 18412 states and 39404 transitions. [2022-04-18 19:03:05,485 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:05,486 INFO L276 IsEmpty]: Start isEmpty. Operand 18412 states and 39404 transitions. [2022-04-18 19:03:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:05,489 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:05,490 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:05,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-18 19:03:05,490 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:05,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:05,491 INFO L85 PathProgramCache]: Analyzing trace with hash 507401219, now seen corresponding path program 18 times [2022-04-18 19:03:05,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:05,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617226535] [2022-04-18 19:03:05,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:05,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:06,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:06,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617226535] [2022-04-18 19:03:06,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617226535] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:06,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:06,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:06,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885499137] [2022-04-18 19:03:06,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:06,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:06,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:06,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:06,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:06,098 INFO L87 Difference]: Start difference. First operand 18412 states and 39404 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:08,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:08,259 INFO L93 Difference]: Finished difference Result 22130 states and 46947 transitions. [2022-04-18 19:03:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:03:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:08,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:08,299 INFO L225 Difference]: With dead ends: 22130 [2022-04-18 19:03:08,299 INFO L226 Difference]: Without dead ends: 22130 [2022-04-18 19:03:08,300 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:03:08,300 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 574 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 3171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:08,300 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 1189 Invalid, 3171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3106 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:03:08,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22130 states. [2022-04-18 19:03:08,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22130 to 18417. [2022-04-18 19:03:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18417 states, 18374 states have (on average 2.1454228801567434) internal successors, (39420), 18416 states have internal predecessors, (39420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:08,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18417 states to 18417 states and 39420 transitions. [2022-04-18 19:03:08,569 INFO L78 Accepts]: Start accepts. Automaton has 18417 states and 39420 transitions. Word has length 31 [2022-04-18 19:03:08,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:08,570 INFO L478 AbstractCegarLoop]: Abstraction has 18417 states and 39420 transitions. [2022-04-18 19:03:08,570 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 18417 states and 39420 transitions. [2022-04-18 19:03:08,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:08,573 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:08,574 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:08,574 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-18 19:03:08,574 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:08,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:08,574 INFO L85 PathProgramCache]: Analyzing trace with hash 518789069, now seen corresponding path program 19 times [2022-04-18 19:03:08,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:08,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118781063] [2022-04-18 19:03:08,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:08,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:09,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:09,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118781063] [2022-04-18 19:03:09,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118781063] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:09,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:09,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:09,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752676593] [2022-04-18 19:03:09,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:09,122 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:09,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:09,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:09,123 INFO L87 Difference]: Start difference. First operand 18417 states and 39420 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:12,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:12,168 INFO L93 Difference]: Finished difference Result 22139 states and 46963 transitions. [2022-04-18 19:03:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:03:12,168 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:12,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:12,201 INFO L225 Difference]: With dead ends: 22139 [2022-04-18 19:03:12,201 INFO L226 Difference]: Without dead ends: 22139 [2022-04-18 19:03:12,201 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:03:12,202 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 482 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 4640 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 4695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 4640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:12,202 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 1300 Invalid, 4695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 4640 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:03:12,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22139 states. [2022-04-18 19:03:12,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22139 to 18414. [2022-04-18 19:03:12,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18414 states, 18371 states have (on average 2.145337760600947) internal successors, (39412), 18413 states have internal predecessors, (39412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:12,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18414 states to 18414 states and 39412 transitions. [2022-04-18 19:03:12,457 INFO L78 Accepts]: Start accepts. Automaton has 18414 states and 39412 transitions. Word has length 31 [2022-04-18 19:03:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:12,457 INFO L478 AbstractCegarLoop]: Abstraction has 18414 states and 39412 transitions. [2022-04-18 19:03:12,457 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 18414 states and 39412 transitions. [2022-04-18 19:03:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:12,461 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:12,461 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:12,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-18 19:03:12,462 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:12,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:12,462 INFO L85 PathProgramCache]: Analyzing trace with hash 763671089, now seen corresponding path program 20 times [2022-04-18 19:03:12,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:12,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770584619] [2022-04-18 19:03:12,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:12,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:12,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:12,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770584619] [2022-04-18 19:03:12,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770584619] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:12,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:12,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:12,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068454485] [2022-04-18 19:03:12,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:12,984 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:12,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:12,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:12,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:12,985 INFO L87 Difference]: Start difference. First operand 18414 states and 39412 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:15,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:15,266 INFO L93 Difference]: Finished difference Result 22151 states and 46985 transitions. [2022-04-18 19:03:15,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:03:15,266 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:15,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:15,304 INFO L225 Difference]: With dead ends: 22151 [2022-04-18 19:03:15,304 INFO L226 Difference]: Without dead ends: 22151 [2022-04-18 19:03:15,304 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:03:15,305 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 505 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 3160 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:15,305 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1192 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3160 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:03:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22151 states. [2022-04-18 19:03:15,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22151 to 18411. [2022-04-18 19:03:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18411 states, 18368 states have (on average 2.145252613240418) internal successors, (39404), 18410 states have internal predecessors, (39404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:15,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18411 states to 18411 states and 39404 transitions. [2022-04-18 19:03:15,667 INFO L78 Accepts]: Start accepts. Automaton has 18411 states and 39404 transitions. Word has length 31 [2022-04-18 19:03:15,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:15,667 INFO L478 AbstractCegarLoop]: Abstraction has 18411 states and 39404 transitions. [2022-04-18 19:03:15,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:15,667 INFO L276 IsEmpty]: Start isEmpty. Operand 18411 states and 39404 transitions. [2022-04-18 19:03:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:15,670 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:15,671 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:15,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-18 19:03:15,671 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:15,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:15,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2091792739, now seen corresponding path program 21 times [2022-04-18 19:03:15,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:15,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886326855] [2022-04-18 19:03:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:15,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:16,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:16,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886326855] [2022-04-18 19:03:16,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886326855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:16,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:16,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:16,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33853893] [2022-04-18 19:03:16,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:16,230 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:16,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:16,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:16,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:16,231 INFO L87 Difference]: Start difference. First operand 18411 states and 39404 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:18,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:18,165 INFO L93 Difference]: Finished difference Result 22145 states and 46970 transitions. [2022-04-18 19:03:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:03:18,165 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:18,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:18,200 INFO L225 Difference]: With dead ends: 22145 [2022-04-18 19:03:18,201 INFO L226 Difference]: Without dead ends: 22145 [2022-04-18 19:03:18,201 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:03:18,201 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 415 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 2510 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:18,201 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 1283 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2510 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:03:18,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22145 states. [2022-04-18 19:03:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22145 to 18072. [2022-04-18 19:03:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18072 states, 18029 states have (on average 2.1473736757446336) internal successors, (38715), 18071 states have internal predecessors, (38715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:18,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18072 states to 18072 states and 38715 transitions. [2022-04-18 19:03:18,467 INFO L78 Accepts]: Start accepts. Automaton has 18072 states and 38715 transitions. Word has length 31 [2022-04-18 19:03:18,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:18,467 INFO L478 AbstractCegarLoop]: Abstraction has 18072 states and 38715 transitions. [2022-04-18 19:03:18,467 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:18,467 INFO L276 IsEmpty]: Start isEmpty. Operand 18072 states and 38715 transitions. [2022-04-18 19:03:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:18,470 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:18,470 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:18,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-18 19:03:18,470 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:18,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:18,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1230223758, now seen corresponding path program 20 times [2022-04-18 19:03:18,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:18,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073366855] [2022-04-18 19:03:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:18,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:18,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:18,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:18,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073366855] [2022-04-18 19:03:18,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073366855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:18,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:18,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:18,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902635578] [2022-04-18 19:03:18,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:18,927 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:18,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:18,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:18,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:18,927 INFO L87 Difference]: Start difference. First operand 18072 states and 38715 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:22,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:22,386 INFO L93 Difference]: Finished difference Result 26413 states and 55918 transitions. [2022-04-18 19:03:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-04-18 19:03:22,387 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:22,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:22,432 INFO L225 Difference]: With dead ends: 26413 [2022-04-18 19:03:22,432 INFO L226 Difference]: Without dead ends: 26413 [2022-04-18 19:03:22,433 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=629, Invalid=2563, Unknown=0, NotChecked=0, Total=3192 [2022-04-18 19:03:22,433 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 750 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 3325 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 3708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 3325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:22,433 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [750 Valid, 1606 Invalid, 3708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 3325 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:03:22,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26413 states. [2022-04-18 19:03:22,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26413 to 18993. [2022-04-18 19:03:22,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18993 states, 18950 states have (on average 2.1465963060686017) internal successors, (40678), 18992 states have internal predecessors, (40678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:22,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18993 states to 18993 states and 40678 transitions. [2022-04-18 19:03:22,742 INFO L78 Accepts]: Start accepts. Automaton has 18993 states and 40678 transitions. Word has length 31 [2022-04-18 19:03:22,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:22,742 INFO L478 AbstractCegarLoop]: Abstraction has 18993 states and 40678 transitions. [2022-04-18 19:03:22,742 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:22,742 INFO L276 IsEmpty]: Start isEmpty. Operand 18993 states and 40678 transitions. [2022-04-18 19:03:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:22,746 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:22,746 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:22,747 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-18 19:03:22,747 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:22,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:22,747 INFO L85 PathProgramCache]: Analyzing trace with hash 567815275, now seen corresponding path program 22 times [2022-04-18 19:03:22,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:22,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930980049] [2022-04-18 19:03:22,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:22,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:23,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:23,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930980049] [2022-04-18 19:03:23,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930980049] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:23,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:23,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:23,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145543724] [2022-04-18 19:03:23,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:23,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:23,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:23,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:23,331 INFO L87 Difference]: Start difference. First operand 18993 states and 40678 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:26,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:26,177 INFO L93 Difference]: Finished difference Result 24972 states and 53034 transitions. [2022-04-18 19:03:26,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:03:26,177 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:26,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:26,219 INFO L225 Difference]: With dead ends: 24972 [2022-04-18 19:03:26,219 INFO L226 Difference]: Without dead ends: 24972 [2022-04-18 19:03:26,219 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:03:26,220 INFO L913 BasicCegarLoop]: 171 mSDtfsCounter, 680 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 3792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:26,220 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 1323 Invalid, 3792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:03:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24972 states. [2022-04-18 19:03:26,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24972 to 19002. [2022-04-18 19:03:26,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19002 states, 18959 states have (on average 2.146579460942033) internal successors, (40697), 19001 states have internal predecessors, (40697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19002 states to 19002 states and 40697 transitions. [2022-04-18 19:03:26,565 INFO L78 Accepts]: Start accepts. Automaton has 19002 states and 40697 transitions. Word has length 31 [2022-04-18 19:03:26,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:26,565 INFO L478 AbstractCegarLoop]: Abstraction has 19002 states and 40697 transitions. [2022-04-18 19:03:26,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand 19002 states and 40697 transitions. [2022-04-18 19:03:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:26,569 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:26,569 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:26,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-04-18 19:03:26,569 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:26,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:26,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1836169013, now seen corresponding path program 23 times [2022-04-18 19:03:26,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:26,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919417796] [2022-04-18 19:03:26,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:26,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:27,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:27,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919417796] [2022-04-18 19:03:27,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919417796] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:27,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:27,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:27,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897823723] [2022-04-18 19:03:27,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:27,070 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:27,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:27,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:27,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:27,070 INFO L87 Difference]: Start difference. First operand 19002 states and 40697 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:29,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:29,341 INFO L93 Difference]: Finished difference Result 24984 states and 53058 transitions. [2022-04-18 19:03:29,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:03:29,341 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:29,386 INFO L225 Difference]: With dead ends: 24984 [2022-04-18 19:03:29,386 INFO L226 Difference]: Without dead ends: 24984 [2022-04-18 19:03:29,387 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:03:29,387 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 593 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:29,387 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [593 Valid, 1427 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:03:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24984 states. [2022-04-18 19:03:29,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24984 to 19006. [2022-04-18 19:03:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19006 states, 18963 states have (on average 2.146548541897379) internal successors, (40705), 19005 states have internal predecessors, (40705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:29,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19006 states to 19006 states and 40705 transitions. [2022-04-18 19:03:29,693 INFO L78 Accepts]: Start accepts. Automaton has 19006 states and 40705 transitions. Word has length 31 [2022-04-18 19:03:29,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:29,694 INFO L478 AbstractCegarLoop]: Abstraction has 19006 states and 40705 transitions. [2022-04-18 19:03:29,694 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 19006 states and 40705 transitions. [2022-04-18 19:03:29,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:29,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:29,697 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:29,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-18 19:03:29,697 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:29,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:29,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1847556863, now seen corresponding path program 24 times [2022-04-18 19:03:29,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:29,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344008584] [2022-04-18 19:03:29,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:29,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:30,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:30,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344008584] [2022-04-18 19:03:30,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344008584] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:30,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:30,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:30,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723164652] [2022-04-18 19:03:30,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:30,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:30,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:30,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:30,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:30,229 INFO L87 Difference]: Start difference. First operand 19006 states and 40705 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:33,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:33,109 INFO L93 Difference]: Finished difference Result 24992 states and 53074 transitions. [2022-04-18 19:03:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:03:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:33,149 INFO L225 Difference]: With dead ends: 24992 [2022-04-18 19:03:33,150 INFO L226 Difference]: Without dead ends: 24992 [2022-04-18 19:03:33,150 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=330, Invalid=1152, Unknown=0, NotChecked=0, Total=1482 [2022-04-18 19:03:33,150 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 634 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 3935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:33,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 1313 Invalid, 3935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3882 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:03:33,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24992 states. [2022-04-18 19:03:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24992 to 19006. [2022-04-18 19:03:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19006 states, 18963 states have (on average 2.146548541897379) internal successors, (40705), 19005 states have internal predecessors, (40705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:33,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19006 states to 19006 states and 40705 transitions. [2022-04-18 19:03:33,449 INFO L78 Accepts]: Start accepts. Automaton has 19006 states and 40705 transitions. Word has length 31 [2022-04-18 19:03:33,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:33,449 INFO L478 AbstractCegarLoop]: Abstraction has 19006 states and 40705 transitions. [2022-04-18 19:03:33,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:33,449 INFO L276 IsEmpty]: Start isEmpty. Operand 19006 states and 40705 transitions. [2022-04-18 19:03:33,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:33,452 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:33,452 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:33,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-04-18 19:03:33,453 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:33,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2092438883, now seen corresponding path program 25 times [2022-04-18 19:03:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:33,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420205075] [2022-04-18 19:03:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:33,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:34,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:34,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:34,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420205075] [2022-04-18 19:03:34,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420205075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:34,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:34,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:34,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9355850] [2022-04-18 19:03:34,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:34,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:34,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:34,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:34,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:34,101 INFO L87 Difference]: Start difference. First operand 19006 states and 40705 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:36,470 INFO L93 Difference]: Finished difference Result 25004 states and 53098 transitions. [2022-04-18 19:03:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:03:36,470 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:36,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:36,520 INFO L225 Difference]: With dead ends: 25004 [2022-04-18 19:03:36,520 INFO L226 Difference]: Without dead ends: 25004 [2022-04-18 19:03:36,520 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=290, Invalid=1042, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:03:36,520 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 593 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:36,520 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [593 Valid, 1303 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2925 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:03:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25004 states. [2022-04-18 19:03:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25004 to 19006. [2022-04-18 19:03:36,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19006 states, 18963 states have (on average 2.146548541897379) internal successors, (40705), 19005 states have internal predecessors, (40705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:36,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19006 states to 19006 states and 40705 transitions. [2022-04-18 19:03:36,878 INFO L78 Accepts]: Start accepts. Automaton has 19006 states and 40705 transitions. Word has length 31 [2022-04-18 19:03:36,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:36,878 INFO L478 AbstractCegarLoop]: Abstraction has 19006 states and 40705 transitions. [2022-04-18 19:03:36,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:36,878 INFO L276 IsEmpty]: Start isEmpty. Operand 19006 states and 40705 transitions. [2022-04-18 19:03:36,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:36,881 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:36,881 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:36,882 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-18 19:03:36,882 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:36,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:36,883 INFO L85 PathProgramCache]: Analyzing trace with hash -763024945, now seen corresponding path program 26 times [2022-04-18 19:03:36,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:36,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909340119] [2022-04-18 19:03:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:36,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:37,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:37,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909340119] [2022-04-18 19:03:37,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909340119] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:37,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:37,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:37,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661116735] [2022-04-18 19:03:37,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:37,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:37,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:37,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:37,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:37,437 INFO L87 Difference]: Start difference. First operand 19006 states and 40705 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:39,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:39,479 INFO L93 Difference]: Finished difference Result 25008 states and 53106 transitions. [2022-04-18 19:03:39,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:03:39,479 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:39,518 INFO L225 Difference]: With dead ends: 25008 [2022-04-18 19:03:39,518 INFO L226 Difference]: Without dead ends: 25008 [2022-04-18 19:03:39,518 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:03:39,519 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 501 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:39,519 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 1426 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:03:39,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25008 states. [2022-04-18 19:03:39,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25008 to 19006. [2022-04-18 19:03:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19006 states, 18963 states have (on average 2.146548541897379) internal successors, (40705), 19005 states have internal predecessors, (40705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:39,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19006 states to 19006 states and 40705 transitions. [2022-04-18 19:03:39,796 INFO L78 Accepts]: Start accepts. Automaton has 19006 states and 40705 transitions. Word has length 31 [2022-04-18 19:03:39,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:39,796 INFO L478 AbstractCegarLoop]: Abstraction has 19006 states and 40705 transitions. [2022-04-18 19:03:39,796 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:39,796 INFO L276 IsEmpty]: Start isEmpty. Operand 19006 states and 40705 transitions. [2022-04-18 19:03:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:39,799 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:39,800 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:39,800 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-04-18 19:03:39,800 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:39,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:39,800 INFO L85 PathProgramCache]: Analyzing trace with hash -45856189, now seen corresponding path program 27 times [2022-04-18 19:03:39,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:39,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983454894] [2022-04-18 19:03:39,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:39,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:40,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:40,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983454894] [2022-04-18 19:03:40,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983454894] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:40,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:40,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:40,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888355464] [2022-04-18 19:03:40,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:40,365 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:40,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:40,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:40,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:40,366 INFO L87 Difference]: Start difference. First operand 19006 states and 40705 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:42,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:42,570 INFO L93 Difference]: Finished difference Result 24395 states and 51890 transitions. [2022-04-18 19:03:42,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:03:42,570 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:42,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:42,604 INFO L225 Difference]: With dead ends: 24395 [2022-04-18 19:03:42,604 INFO L226 Difference]: Without dead ends: 24395 [2022-04-18 19:03:42,604 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:03:42,607 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 516 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 3435 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:42,607 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [516 Valid, 946 Invalid, 3490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3435 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:03:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24395 states. [2022-04-18 19:03:42,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24395 to 19008. [2022-04-18 19:03:42,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19008 states, 18965 states have (on average 2.1465330872660164) internal successors, (40709), 19007 states have internal predecessors, (40709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19008 states to 19008 states and 40709 transitions. [2022-04-18 19:03:42,861 INFO L78 Accepts]: Start accepts. Automaton has 19008 states and 40709 transitions. Word has length 31 [2022-04-18 19:03:42,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:42,861 INFO L478 AbstractCegarLoop]: Abstraction has 19008 states and 40709 transitions. [2022-04-18 19:03:42,861 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:42,861 INFO L276 IsEmpty]: Start isEmpty. Operand 19008 states and 40709 transitions. [2022-04-18 19:03:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:42,865 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:42,865 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:42,865 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-04-18 19:03:42,865 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:42,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:42,865 INFO L85 PathProgramCache]: Analyzing trace with hash -34468339, now seen corresponding path program 28 times [2022-04-18 19:03:42,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:42,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113285754] [2022-04-18 19:03:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:42,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:43,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:43,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113285754] [2022-04-18 19:03:43,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113285754] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:43,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:43,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:43,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516393755] [2022-04-18 19:03:43,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:43,373 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:43,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:43,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:43,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:43,373 INFO L87 Difference]: Start difference. First operand 19008 states and 40709 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:45,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:45,632 INFO L93 Difference]: Finished difference Result 24400 states and 51900 transitions. [2022-04-18 19:03:45,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:03:45,632 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:45,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:45,669 INFO L225 Difference]: With dead ends: 24400 [2022-04-18 19:03:45,669 INFO L226 Difference]: Without dead ends: 24400 [2022-04-18 19:03:45,669 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:03:45,670 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 511 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 3343 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 3404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:45,670 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 945 Invalid, 3404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3343 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:03:45,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24400 states. [2022-04-18 19:03:45,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24400 to 19007. [2022-04-18 19:03:45,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19007 states, 18964 states have (on average 2.146540814174225) internal successors, (40707), 19006 states have internal predecessors, (40707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19007 states to 19007 states and 40707 transitions. [2022-04-18 19:03:45,973 INFO L78 Accepts]: Start accepts. Automaton has 19007 states and 40707 transitions. Word has length 31 [2022-04-18 19:03:45,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:45,973 INFO L478 AbstractCegarLoop]: Abstraction has 19007 states and 40707 transitions. [2022-04-18 19:03:45,973 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:45,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19007 states and 40707 transitions. [2022-04-18 19:03:45,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:45,976 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:45,977 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:45,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-04-18 19:03:45,977 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:45,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:45,977 INFO L85 PathProgramCache]: Analyzing trace with hash 210413681, now seen corresponding path program 29 times [2022-04-18 19:03:45,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:45,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338427645] [2022-04-18 19:03:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:45,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:46,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:46,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338427645] [2022-04-18 19:03:46,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338427645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:46,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:46,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:46,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752525689] [2022-04-18 19:03:46,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:46,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:46,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:46,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:46,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:46,496 INFO L87 Difference]: Start difference. First operand 19007 states and 40707 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:48,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:48,404 INFO L93 Difference]: Finished difference Result 24406 states and 51913 transitions. [2022-04-18 19:03:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:03:48,405 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:48,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:48,441 INFO L225 Difference]: With dead ends: 24406 [2022-04-18 19:03:48,441 INFO L226 Difference]: Without dead ends: 24406 [2022-04-18 19:03:48,441 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:03:48,441 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 446 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 2863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:48,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 1037 Invalid, 2863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:03:48,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24406 states. [2022-04-18 19:03:48,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24406 to 19006. [2022-04-18 19:03:48,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19006 states, 18963 states have (on average 2.146548541897379) internal successors, (40705), 19005 states have internal predecessors, (40705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:48,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19006 states to 19006 states and 40705 transitions. [2022-04-18 19:03:48,717 INFO L78 Accepts]: Start accepts. Automaton has 19006 states and 40705 transitions. Word has length 31 [2022-04-18 19:03:48,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:48,718 INFO L478 AbstractCegarLoop]: Abstraction has 19006 states and 40705 transitions. [2022-04-18 19:03:48,718 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 19006 states and 40705 transitions. [2022-04-18 19:03:48,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:48,721 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:48,721 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:48,721 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-04-18 19:03:48,722 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:48,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:48,722 INFO L85 PathProgramCache]: Analyzing trace with hash 227920753, now seen corresponding path program 30 times [2022-04-18 19:03:48,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:48,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614034761] [2022-04-18 19:03:48,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:48,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:49,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:49,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614034761] [2022-04-18 19:03:49,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614034761] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:49,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:49,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:49,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010744664] [2022-04-18 19:03:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:49,255 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:49,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:49,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:49,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:49,255 INFO L87 Difference]: Start difference. First operand 19006 states and 40705 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:51,625 INFO L93 Difference]: Finished difference Result 24386 states and 51872 transitions. [2022-04-18 19:03:51,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:03:51,626 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:51,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:51,663 INFO L225 Difference]: With dead ends: 24386 [2022-04-18 19:03:51,663 INFO L226 Difference]: Without dead ends: 24386 [2022-04-18 19:03:51,663 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:03:51,663 INFO L913 BasicCegarLoop]: 156 mSDtfsCounter, 495 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 3736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:51,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [495 Valid, 1043 Invalid, 3736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 3688 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:03:51,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24386 states. [2022-04-18 19:03:51,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24386 to 19006. [2022-04-18 19:03:51,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19006 states, 18963 states have (on average 2.146548541897379) internal successors, (40705), 19005 states have internal predecessors, (40705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19006 states to 19006 states and 40705 transitions. [2022-04-18 19:03:51,955 INFO L78 Accepts]: Start accepts. Automaton has 19006 states and 40705 transitions. Word has length 31 [2022-04-18 19:03:51,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:51,955 INFO L478 AbstractCegarLoop]: Abstraction has 19006 states and 40705 transitions. [2022-04-18 19:03:51,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 19006 states and 40705 transitions. [2022-04-18 19:03:51,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:51,959 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:51,959 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:51,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-04-18 19:03:51,959 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:51,960 INFO L85 PathProgramCache]: Analyzing trace with hash 592562593, now seen corresponding path program 31 times [2022-04-18 19:03:51,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:51,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21550963] [2022-04-18 19:03:51,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:51,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:51,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:52,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:52,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21550963] [2022-04-18 19:03:52,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21550963] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:52,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:52,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:52,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662972394] [2022-04-18 19:03:52,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:52,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:52,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:52,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:52,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:52,483 INFO L87 Difference]: Start difference. First operand 19006 states and 40705 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:55,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:55,076 INFO L93 Difference]: Finished difference Result 24392 states and 51884 transitions. [2022-04-18 19:03:55,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:03:55,076 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:55,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:55,112 INFO L225 Difference]: With dead ends: 24392 [2022-04-18 19:03:55,112 INFO L226 Difference]: Without dead ends: 24392 [2022-04-18 19:03:55,112 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:03:55,112 INFO L913 BasicCegarLoop]: 156 mSDtfsCounter, 570 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 4043 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 4043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:55,112 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 949 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 4043 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:03:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24392 states. [2022-04-18 19:03:55,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24392 to 19007. [2022-04-18 19:03:55,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19007 states, 18964 states have (on average 2.146540814174225) internal successors, (40707), 19006 states have internal predecessors, (40707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19007 states to 19007 states and 40707 transitions. [2022-04-18 19:03:55,449 INFO L78 Accepts]: Start accepts. Automaton has 19007 states and 40707 transitions. Word has length 31 [2022-04-18 19:03:55,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:55,449 INFO L478 AbstractCegarLoop]: Abstraction has 19007 states and 40707 transitions. [2022-04-18 19:03:55,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:55,449 INFO L276 IsEmpty]: Start isEmpty. Operand 19007 states and 40707 transitions. [2022-04-18 19:03:55,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:55,452 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:55,452 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:55,452 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-04-18 19:03:55,452 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:55,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:55,453 INFO L85 PathProgramCache]: Analyzing trace with hash 603950443, now seen corresponding path program 32 times [2022-04-18 19:03:55,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:55,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603234836] [2022-04-18 19:03:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:55,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:56,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:56,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603234836] [2022-04-18 19:03:56,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603234836] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:56,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:56,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363000978] [2022-04-18 19:03:56,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:56,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:56,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:56,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:56,082 INFO L87 Difference]: Start difference. First operand 19007 states and 40707 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:58,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:58,668 INFO L93 Difference]: Finished difference Result 24392 states and 51884 transitions. [2022-04-18 19:03:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:03:58,668 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:03:58,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:58,706 INFO L225 Difference]: With dead ends: 24392 [2022-04-18 19:03:58,706 INFO L226 Difference]: Without dead ends: 24392 [2022-04-18 19:03:58,706 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:03:58,707 INFO L913 BasicCegarLoop]: 156 mSDtfsCounter, 566 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 3894 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 3953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:58,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [566 Valid, 948 Invalid, 3953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3894 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:03:58,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24392 states. [2022-04-18 19:03:58,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24392 to 19006. [2022-04-18 19:03:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19006 states, 18963 states have (on average 2.146548541897379) internal successors, (40705), 19005 states have internal predecessors, (40705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:58,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19006 states to 19006 states and 40705 transitions. [2022-04-18 19:03:58,967 INFO L78 Accepts]: Start accepts. Automaton has 19006 states and 40705 transitions. Word has length 31 [2022-04-18 19:03:58,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:58,967 INFO L478 AbstractCegarLoop]: Abstraction has 19006 states and 40705 transitions. [2022-04-18 19:03:58,967 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:58,967 INFO L276 IsEmpty]: Start isEmpty. Operand 19006 states and 40705 transitions. [2022-04-18 19:03:58,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:03:58,971 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:58,971 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:03:58,971 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-04-18 19:03:58,971 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:03:58,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:58,971 INFO L85 PathProgramCache]: Analyzing trace with hash -90454639, now seen corresponding path program 33 times [2022-04-18 19:03:58,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:58,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101372187] [2022-04-18 19:03:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:58,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:59,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:59,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101372187] [2022-04-18 19:03:59,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101372187] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:59,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:59,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:03:59,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032081360] [2022-04-18 19:03:59,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:59,518 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:03:59,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:59,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:03:59,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:03:59,518 INFO L87 Difference]: Start difference. First operand 19006 states and 40705 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:01,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:01,261 INFO L93 Difference]: Finished difference Result 24391 states and 51882 transitions. [2022-04-18 19:04:01,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 19:04:01,261 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:01,302 INFO L225 Difference]: With dead ends: 24391 [2022-04-18 19:04:01,302 INFO L226 Difference]: Without dead ends: 24391 [2022-04-18 19:04:01,302 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:04:01,303 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 418 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 2430 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1034 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:01,303 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1034 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2430 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:04:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24391 states. [2022-04-18 19:04:01,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24391 to 19005. [2022-04-18 19:04:01,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19005 states, 18962 states have (on average 2.146556270435608) internal successors, (40703), 19004 states have internal predecessors, (40703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:01,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19005 states to 19005 states and 40703 transitions. [2022-04-18 19:04:01,577 INFO L78 Accepts]: Start accepts. Automaton has 19005 states and 40703 transitions. Word has length 31 [2022-04-18 19:04:01,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:01,577 INFO L478 AbstractCegarLoop]: Abstraction has 19005 states and 40703 transitions. [2022-04-18 19:04:01,577 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:01,577 INFO L276 IsEmpty]: Start isEmpty. Operand 19005 states and 40703 transitions. [2022-04-18 19:04:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:01,581 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:01,581 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:01,581 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-04-18 19:04:01,581 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:01,581 INFO L85 PathProgramCache]: Analyzing trace with hash -79066789, now seen corresponding path program 34 times [2022-04-18 19:04:01,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:01,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034126152] [2022-04-18 19:04:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:01,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:02,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:02,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:02,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034126152] [2022-04-18 19:04:02,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034126152] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:02,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:02,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:02,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716672850] [2022-04-18 19:04:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:02,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:02,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:02,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:02,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:02,089 INFO L87 Difference]: Start difference. First operand 19005 states and 40703 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:04,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:04,155 INFO L93 Difference]: Finished difference Result 24396 states and 51892 transitions. [2022-04-18 19:04:04,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:04:04,156 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:04,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:04,194 INFO L225 Difference]: With dead ends: 24396 [2022-04-18 19:04:04,194 INFO L226 Difference]: Without dead ends: 24396 [2022-04-18 19:04:04,195 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:04:04,195 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 484 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:04,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 941 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3144 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:04:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24396 states. [2022-04-18 19:04:04,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24396 to 19004. [2022-04-18 19:04:04,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19004 states, 18961 states have (on average 2.1465639997890404) internal successors, (40701), 19003 states have internal predecessors, (40701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19004 states to 19004 states and 40701 transitions. [2022-04-18 19:04:04,452 INFO L78 Accepts]: Start accepts. Automaton has 19004 states and 40701 transitions. Word has length 31 [2022-04-18 19:04:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:04,453 INFO L478 AbstractCegarLoop]: Abstraction has 19004 states and 40701 transitions. [2022-04-18 19:04:04,453 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 19004 states and 40701 transitions. [2022-04-18 19:04:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:04,456 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:04,456 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:04,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-04-18 19:04:04,456 INFO L403 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:04,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:04,457 INFO L85 PathProgramCache]: Analyzing trace with hash 165815231, now seen corresponding path program 35 times [2022-04-18 19:04:04,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:04,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197361975] [2022-04-18 19:04:04,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:04,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:05,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:05,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197361975] [2022-04-18 19:04:05,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197361975] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:05,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:05,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:05,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556476600] [2022-04-18 19:04:05,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:05,010 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:05,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:05,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:05,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:05,011 INFO L87 Difference]: Start difference. First operand 19004 states and 40701 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:07,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:07,105 INFO L93 Difference]: Finished difference Result 24401 states and 51902 transitions. [2022-04-18 19:04:07,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 19:04:07,105 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:07,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:07,147 INFO L225 Difference]: With dead ends: 24401 [2022-04-18 19:04:07,148 INFO L226 Difference]: Without dead ends: 24401 [2022-04-18 19:04:07,148 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:04:07,148 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 412 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 2952 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 3002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:07,148 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1038 Invalid, 3002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2952 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:04:07,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24401 states. [2022-04-18 19:04:07,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24401 to 19003. [2022-04-18 19:04:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19003 states, 18960 states have (on average 2.146571729957806) internal successors, (40699), 19002 states have internal predecessors, (40699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:07,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19003 states to 19003 states and 40699 transitions. [2022-04-18 19:04:07,401 INFO L78 Accepts]: Start accepts. Automaton has 19003 states and 40699 transitions. Word has length 31 [2022-04-18 19:04:07,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:07,401 INFO L478 AbstractCegarLoop]: Abstraction has 19003 states and 40699 transitions. [2022-04-18 19:04:07,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:07,402 INFO L276 IsEmpty]: Start isEmpty. Operand 19003 states and 40699 transitions. [2022-04-18 19:04:07,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:07,405 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:07,405 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:07,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-04-18 19:04:07,405 INFO L403 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:07,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:07,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1605318699, now seen corresponding path program 36 times [2022-04-18 19:04:07,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:07,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378337521] [2022-04-18 19:04:07,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:07,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:07,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:07,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378337521] [2022-04-18 19:04:07,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378337521] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:07,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:07,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:07,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400024925] [2022-04-18 19:04:07,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:07,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:07,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:07,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:07,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:07,959 INFO L87 Difference]: Start difference. First operand 19003 states and 40699 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:09,783 INFO L93 Difference]: Finished difference Result 24390 states and 51878 transitions. [2022-04-18 19:04:09,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 19:04:09,784 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:09,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:09,817 INFO L225 Difference]: With dead ends: 24390 [2022-04-18 19:04:09,818 INFO L226 Difference]: Without dead ends: 24390 [2022-04-18 19:04:09,818 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=199, Invalid=671, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:04:09,818 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 411 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 2633 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:09,818 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 1035 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2633 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:04:09,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24390 states. [2022-04-18 19:04:10,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24390 to 18993. [2022-04-18 19:04:10,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18993 states, 18950 states have (on average 2.1465435356200526) internal successors, (40677), 18992 states have internal predecessors, (40677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18993 states to 18993 states and 40677 transitions. [2022-04-18 19:04:10,108 INFO L78 Accepts]: Start accepts. Automaton has 18993 states and 40677 transitions. Word has length 31 [2022-04-18 19:04:10,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:10,108 INFO L478 AbstractCegarLoop]: Abstraction has 18993 states and 40677 transitions. [2022-04-18 19:04:10,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 18993 states and 40677 transitions. [2022-04-18 19:04:10,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:10,111 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:10,111 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:10,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-04-18 19:04:10,112 INFO L403 AbstractCegarLoop]: === Iteration 79 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:10,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:10,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1986203392, now seen corresponding path program 21 times [2022-04-18 19:04:10,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:10,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118413210] [2022-04-18 19:04:10,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:10,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:10,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:10,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:10,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118413210] [2022-04-18 19:04:10,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118413210] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:10,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:10,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:10,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410125910] [2022-04-18 19:04:10,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:10,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:10,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:10,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:10,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:10,706 INFO L87 Difference]: Start difference. First operand 18993 states and 40677 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:12,793 INFO L93 Difference]: Finished difference Result 23524 states and 49812 transitions. [2022-04-18 19:04:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:04:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:12,828 INFO L225 Difference]: With dead ends: 23524 [2022-04-18 19:04:12,828 INFO L226 Difference]: Without dead ends: 23524 [2022-04-18 19:04:12,828 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=310, Invalid=746, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:04:12,829 INFO L913 BasicCegarLoop]: 90 mSDtfsCounter, 612 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:12,829 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 385 Invalid, 2712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:04:12,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23524 states. [2022-04-18 19:04:13,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23524 to 18993. [2022-04-18 19:04:13,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18993 states, 18950 states have (on average 2.1465435356200526) internal successors, (40677), 18992 states have internal predecessors, (40677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18993 states to 18993 states and 40677 transitions. [2022-04-18 19:04:13,080 INFO L78 Accepts]: Start accepts. Automaton has 18993 states and 40677 transitions. Word has length 31 [2022-04-18 19:04:13,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:13,080 INFO L478 AbstractCegarLoop]: Abstraction has 18993 states and 40677 transitions. [2022-04-18 19:04:13,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:13,080 INFO L276 IsEmpty]: Start isEmpty. Operand 18993 states and 40677 transitions. [2022-04-18 19:04:13,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:13,084 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:13,084 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:13,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-04-18 19:04:13,084 INFO L403 AbstractCegarLoop]: === Iteration 80 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:13,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:13,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1947009220, now seen corresponding path program 22 times [2022-04-18 19:04:13,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:13,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250655623] [2022-04-18 19:04:13,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:13,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:13,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:13,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250655623] [2022-04-18 19:04:13,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250655623] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:13,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:13,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:13,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302213900] [2022-04-18 19:04:13,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:13,992 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:13,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:13,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:13,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:13,992 INFO L87 Difference]: Start difference. First operand 18993 states and 40677 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:16,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:16,730 INFO L93 Difference]: Finished difference Result 23468 states and 49704 transitions. [2022-04-18 19:04:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-18 19:04:16,731 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:16,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:16,766 INFO L225 Difference]: With dead ends: 23468 [2022-04-18 19:04:16,766 INFO L226 Difference]: Without dead ends: 23468 [2022-04-18 19:04:16,767 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=379, Invalid=1427, Unknown=0, NotChecked=0, Total=1806 [2022-04-18 19:04:16,767 INFO L913 BasicCegarLoop]: 162 mSDtfsCounter, 574 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 3241 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 3688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 3241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:16,767 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 873 Invalid, 3688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 3241 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:04:16,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23468 states. [2022-04-18 19:04:17,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23468 to 19262. [2022-04-18 19:04:17,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19262 states, 19219 states have (on average 2.144804620427702) internal successors, (41221), 19261 states have internal predecessors, (41221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:17,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19262 states to 19262 states and 41221 transitions. [2022-04-18 19:04:17,060 INFO L78 Accepts]: Start accepts. Automaton has 19262 states and 41221 transitions. Word has length 31 [2022-04-18 19:04:17,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:17,060 INFO L478 AbstractCegarLoop]: Abstraction has 19262 states and 41221 transitions. [2022-04-18 19:04:17,060 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:17,060 INFO L276 IsEmpty]: Start isEmpty. Operand 19262 states and 41221 transitions. [2022-04-18 19:04:17,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:17,063 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:17,064 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:17,064 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-04-18 19:04:17,064 INFO L403 AbstractCegarLoop]: === Iteration 81 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:17,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:17,064 INFO L85 PathProgramCache]: Analyzing trace with hash 2035995490, now seen corresponding path program 23 times [2022-04-18 19:04:17,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:17,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466928115] [2022-04-18 19:04:17,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:17,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:17,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:17,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:17,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466928115] [2022-04-18 19:04:17,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466928115] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:17,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:17,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:17,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468625179] [2022-04-18 19:04:17,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:17,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:17,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:17,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:17,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:17,649 INFO L87 Difference]: Start difference. First operand 19262 states and 41221 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:21,005 INFO L93 Difference]: Finished difference Result 24997 states and 52813 transitions. [2022-04-18 19:04:21,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-04-18 19:04:21,006 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:21,046 INFO L225 Difference]: With dead ends: 24997 [2022-04-18 19:04:21,046 INFO L226 Difference]: Without dead ends: 24997 [2022-04-18 19:04:21,053 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=470, Invalid=1692, Unknown=0, NotChecked=0, Total=2162 [2022-04-18 19:04:21,053 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 618 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 4336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:21,053 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 1237 Invalid, 4336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:04:21,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24997 states. [2022-04-18 19:04:21,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24997 to 19508. [2022-04-18 19:04:21,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19508 states, 19465 states have (on average 2.14328281530953) internal successors, (41719), 19507 states have internal predecessors, (41719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19508 states to 19508 states and 41719 transitions. [2022-04-18 19:04:21,349 INFO L78 Accepts]: Start accepts. Automaton has 19508 states and 41719 transitions. Word has length 31 [2022-04-18 19:04:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:21,349 INFO L478 AbstractCegarLoop]: Abstraction has 19508 states and 41719 transitions. [2022-04-18 19:04:21,349 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 19508 states and 41719 transitions. [2022-04-18 19:04:21,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:21,353 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:21,353 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:21,353 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-04-18 19:04:21,353 INFO L403 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:21,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1373587007, now seen corresponding path program 37 times [2022-04-18 19:04:21,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:21,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248069387] [2022-04-18 19:04:21,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:21,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:22,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:22,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:22,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248069387] [2022-04-18 19:04:22,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248069387] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:22,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:22,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:22,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189260915] [2022-04-18 19:04:22,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:22,011 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:22,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:22,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:22,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:22,012 INFO L87 Difference]: Start difference. First operand 19508 states and 41719 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:25,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:25,415 INFO L93 Difference]: Finished difference Result 23588 states and 49978 transitions. [2022-04-18 19:04:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:04:25,416 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:25,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:25,451 INFO L225 Difference]: With dead ends: 23588 [2022-04-18 19:04:25,451 INFO L226 Difference]: Without dead ends: 23588 [2022-04-18 19:04:25,451 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:04:25,451 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 567 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 4824 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 4884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:25,451 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 1350 Invalid, 4884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4824 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:04:25,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23588 states. [2022-04-18 19:04:25,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23588 to 19378. [2022-04-18 19:04:25,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19378 states, 19335 states have (on average 2.144091026635635) internal successors, (41456), 19377 states have internal predecessors, (41456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19378 states to 19378 states and 41456 transitions. [2022-04-18 19:04:25,736 INFO L78 Accepts]: Start accepts. Automaton has 19378 states and 41456 transitions. Word has length 31 [2022-04-18 19:04:25,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:25,736 INFO L478 AbstractCegarLoop]: Abstraction has 19378 states and 41456 transitions. [2022-04-18 19:04:25,736 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 19378 states and 41456 transitions. [2022-04-18 19:04:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:25,739 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:25,739 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:25,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-04-18 19:04:25,739 INFO L403 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:25,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1653026551, now seen corresponding path program 38 times [2022-04-18 19:04:25,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:25,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500826706] [2022-04-18 19:04:25,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:25,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:26,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:26,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500826706] [2022-04-18 19:04:26,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500826706] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:26,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:26,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:26,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365676900] [2022-04-18 19:04:26,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:26,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:26,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:26,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:26,394 INFO L87 Difference]: Start difference. First operand 19378 states and 41456 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:28,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:28,873 INFO L93 Difference]: Finished difference Result 22936 states and 48679 transitions. [2022-04-18 19:04:28,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:04:28,873 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:28,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:28,909 INFO L225 Difference]: With dead ends: 22936 [2022-04-18 19:04:28,909 INFO L226 Difference]: Without dead ends: 22936 [2022-04-18 19:04:28,910 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=769, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:04:28,910 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 535 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 3482 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 3538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:28,910 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 1273 Invalid, 3538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3482 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:04:28,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22936 states. [2022-04-18 19:04:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22936 to 19383. [2022-04-18 19:04:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19383 states, 19340 states have (on average 2.144364012409514) internal successors, (41472), 19382 states have internal predecessors, (41472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:29,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19383 states to 19383 states and 41472 transitions. [2022-04-18 19:04:29,295 INFO L78 Accepts]: Start accepts. Automaton has 19383 states and 41472 transitions. Word has length 31 [2022-04-18 19:04:29,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:29,295 INFO L478 AbstractCegarLoop]: Abstraction has 19383 states and 41472 transitions. [2022-04-18 19:04:29,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 19383 states and 41472 transitions. [2022-04-18 19:04:29,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:29,298 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:29,298 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:29,298 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-04-18 19:04:29,298 INFO L403 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1641638701, now seen corresponding path program 39 times [2022-04-18 19:04:29,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:29,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727712317] [2022-04-18 19:04:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:29,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:29,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:29,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727712317] [2022-04-18 19:04:29,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727712317] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:29,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:29,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:29,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135352496] [2022-04-18 19:04:29,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:29,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:29,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:29,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:29,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:29,810 INFO L87 Difference]: Start difference. First operand 19383 states and 41472 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:32,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:32,314 INFO L93 Difference]: Finished difference Result 22945 states and 48695 transitions. [2022-04-18 19:04:32,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:04:32,314 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:32,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:32,347 INFO L225 Difference]: With dead ends: 22945 [2022-04-18 19:04:32,347 INFO L226 Difference]: Without dead ends: 22945 [2022-04-18 19:04:32,348 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:04:32,348 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 476 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3633 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:32,348 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1251 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3633 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:04:32,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22945 states. [2022-04-18 19:04:32,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22945 to 19380. [2022-04-18 19:04:32,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19380 states, 19337 states have (on average 2.1442829808139834) internal successors, (41464), 19379 states have internal predecessors, (41464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19380 states to 19380 states and 41464 transitions. [2022-04-18 19:04:32,611 INFO L78 Accepts]: Start accepts. Automaton has 19380 states and 41464 transitions. Word has length 31 [2022-04-18 19:04:32,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:32,611 INFO L478 AbstractCegarLoop]: Abstraction has 19380 states and 41464 transitions. [2022-04-18 19:04:32,611 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:32,611 INFO L276 IsEmpty]: Start isEmpty. Operand 19380 states and 41464 transitions. [2022-04-18 19:04:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:32,614 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:32,614 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:32,614 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-04-18 19:04:32,614 INFO L403 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1396756681, now seen corresponding path program 40 times [2022-04-18 19:04:32,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:32,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111549613] [2022-04-18 19:04:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:32,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:33,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:33,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111549613] [2022-04-18 19:04:33,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111549613] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:33,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:33,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:33,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449123112] [2022-04-18 19:04:33,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:33,191 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:33,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:33,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:33,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:33,192 INFO L87 Difference]: Start difference. First operand 19380 states and 41464 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:35,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:35,658 INFO L93 Difference]: Finished difference Result 22957 states and 48717 transitions. [2022-04-18 19:04:35,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:04:35,658 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:35,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:35,696 INFO L225 Difference]: With dead ends: 22957 [2022-04-18 19:04:35,696 INFO L226 Difference]: Without dead ends: 22957 [2022-04-18 19:04:35,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:04:35,696 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 432 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 3496 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 3551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:35,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1250 Invalid, 3551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3496 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:04:35,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22957 states. [2022-04-18 19:04:35,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22957 to 19377. [2022-04-18 19:04:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19377 states, 19334 states have (on average 2.144201924071584) internal successors, (41456), 19376 states have internal predecessors, (41456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:35,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19377 states to 19377 states and 41456 transitions. [2022-04-18 19:04:35,982 INFO L78 Accepts]: Start accepts. Automaton has 19377 states and 41456 transitions. Word has length 31 [2022-04-18 19:04:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:35,983 INFO L478 AbstractCegarLoop]: Abstraction has 19377 states and 41456 transitions. [2022-04-18 19:04:35,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 19377 states and 41456 transitions. [2022-04-18 19:04:35,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:35,986 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:35,986 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:35,986 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-04-18 19:04:35,986 INFO L403 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash 42746787, now seen corresponding path program 41 times [2022-04-18 19:04:35,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:35,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810649044] [2022-04-18 19:04:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:35,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:36,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:36,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810649044] [2022-04-18 19:04:36,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810649044] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:36,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:36,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:04:36,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134885810] [2022-04-18 19:04:36,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:36,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:04:36,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:36,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:04:36,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:04:36,552 INFO L87 Difference]: Start difference. First operand 19377 states and 41456 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:38,474 INFO L93 Difference]: Finished difference Result 22951 states and 48702 transitions. [2022-04-18 19:04:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:04:38,475 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:38,510 INFO L225 Difference]: With dead ends: 22951 [2022-04-18 19:04:38,510 INFO L226 Difference]: Without dead ends: 22951 [2022-04-18 19:04:38,513 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:04:38,514 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 409 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:38,514 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 1241 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:04:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22951 states. [2022-04-18 19:04:38,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22951 to 18980. [2022-04-18 19:04:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18980 states, 18937 states have (on average 2.145693615673021) internal successors, (40633), 18979 states have internal predecessors, (40633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18980 states to 18980 states and 40633 transitions. [2022-04-18 19:04:38,784 INFO L78 Accepts]: Start accepts. Automaton has 18980 states and 40633 transitions. Word has length 31 [2022-04-18 19:04:38,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:38,785 INFO L478 AbstractCegarLoop]: Abstraction has 18980 states and 40633 transitions. [2022-04-18 19:04:38,785 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:38,785 INFO L276 IsEmpty]: Start isEmpty. Operand 18980 states and 40633 transitions. [2022-04-18 19:04:38,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:38,788 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:38,788 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:38,788 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-04-18 19:04:38,788 INFO L403 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:38,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:38,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2046591505, now seen corresponding path program 13 times [2022-04-18 19:04:38,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:38,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478053996] [2022-04-18 19:04:38,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:38,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:39,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:39,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:39,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478053996] [2022-04-18 19:04:39,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478053996] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:39,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:39,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:04:39,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911917422] [2022-04-18 19:04:39,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:39,859 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:04:39,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:39,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:04:39,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:04:39,860 INFO L87 Difference]: Start difference. First operand 18980 states and 40633 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:40,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:40,989 INFO L93 Difference]: Finished difference Result 27574 states and 58407 transitions. [2022-04-18 19:04:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:04:40,989 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:40,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:41,030 INFO L225 Difference]: With dead ends: 27574 [2022-04-18 19:04:41,031 INFO L226 Difference]: Without dead ends: 27574 [2022-04-18 19:04:41,031 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=361, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:04:41,031 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 596 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:41,031 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 255 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:04:41,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27574 states. [2022-04-18 19:04:41,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27574 to 18978. [2022-04-18 19:04:41,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18978 states, 18935 states have (on average 2.1457090044890417) internal successors, (40629), 18977 states have internal predecessors, (40629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:41,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18978 states to 18978 states and 40629 transitions. [2022-04-18 19:04:41,304 INFO L78 Accepts]: Start accepts. Automaton has 18978 states and 40629 transitions. Word has length 31 [2022-04-18 19:04:41,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:41,304 INFO L478 AbstractCegarLoop]: Abstraction has 18978 states and 40629 transitions. [2022-04-18 19:04:41,304 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:41,304 INFO L276 IsEmpty]: Start isEmpty. Operand 18978 states and 40629 transitions. [2022-04-18 19:04:41,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:41,307 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:41,307 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:41,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-04-18 19:04:41,307 INFO L403 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:41,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:41,307 INFO L85 PathProgramCache]: Analyzing trace with hash -97239597, now seen corresponding path program 14 times [2022-04-18 19:04:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:41,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531839848] [2022-04-18 19:04:41,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:41,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:42,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:42,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531839848] [2022-04-18 19:04:42,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531839848] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:42,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:42,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:04:42,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298291566] [2022-04-18 19:04:42,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:42,467 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:04:42,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:42,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:04:42,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:04:42,468 INFO L87 Difference]: Start difference. First operand 18978 states and 40629 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:43,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:43,960 INFO L93 Difference]: Finished difference Result 28789 states and 60893 transitions. [2022-04-18 19:04:43,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:04:43,960 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:44,004 INFO L225 Difference]: With dead ends: 28789 [2022-04-18 19:04:44,005 INFO L226 Difference]: Without dead ends: 28789 [2022-04-18 19:04:44,005 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:04:44,005 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 621 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 2222 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:44,005 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [621 Valid, 299 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2222 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:04:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28789 states. [2022-04-18 19:04:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28789 to 18981. [2022-04-18 19:04:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18981 states, 18938 states have (on average 2.145685922483895) internal successors, (40635), 18980 states have internal predecessors, (40635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:44,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18981 states to 18981 states and 40635 transitions. [2022-04-18 19:04:44,302 INFO L78 Accepts]: Start accepts. Automaton has 18981 states and 40635 transitions. Word has length 31 [2022-04-18 19:04:44,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:44,302 INFO L478 AbstractCegarLoop]: Abstraction has 18981 states and 40635 transitions. [2022-04-18 19:04:44,302 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:44,302 INFO L276 IsEmpty]: Start isEmpty. Operand 18981 states and 40635 transitions. [2022-04-18 19:04:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:44,305 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:44,305 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:44,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-04-18 19:04:44,305 INFO L403 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash -988872885, now seen corresponding path program 15 times [2022-04-18 19:04:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:44,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742521826] [2022-04-18 19:04:44,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:44,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:45,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:45,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742521826] [2022-04-18 19:04:45,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742521826] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:45,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:45,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:04:45,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876440874] [2022-04-18 19:04:45,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:45,481 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:04:45,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:45,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:04:45,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:04:45,482 INFO L87 Difference]: Start difference. First operand 18981 states and 40635 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:47,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:47,058 INFO L93 Difference]: Finished difference Result 27768 states and 58796 transitions. [2022-04-18 19:04:47,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:04:47,058 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:47,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:47,101 INFO L225 Difference]: With dead ends: 27768 [2022-04-18 19:04:47,101 INFO L226 Difference]: Without dead ends: 27768 [2022-04-18 19:04:47,101 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:04:47,102 INFO L913 BasicCegarLoop]: 116 mSDtfsCounter, 610 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 2526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:47,102 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 277 Invalid, 2526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:04:47,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27768 states. [2022-04-18 19:04:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27768 to 18976. [2022-04-18 19:04:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18976 states, 18933 states have (on average 2.1457243965562776) internal successors, (40625), 18975 states have internal predecessors, (40625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:47,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18976 states to 18976 states and 40625 transitions. [2022-04-18 19:04:47,370 INFO L78 Accepts]: Start accepts. Automaton has 18976 states and 40625 transitions. Word has length 31 [2022-04-18 19:04:47,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:47,370 INFO L478 AbstractCegarLoop]: Abstraction has 18976 states and 40625 transitions. [2022-04-18 19:04:47,370 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 18976 states and 40625 transitions. [2022-04-18 19:04:47,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:47,373 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:47,373 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:47,373 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-04-18 19:04:47,373 INFO L403 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:47,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:47,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1254695151, now seen corresponding path program 16 times [2022-04-18 19:04:47,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:47,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821407576] [2022-04-18 19:04:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:47,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:48,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:48,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821407576] [2022-04-18 19:04:48,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821407576] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:48,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:48,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:04:48,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447726213] [2022-04-18 19:04:48,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:48,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:04:48,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:48,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:04:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:04:48,658 INFO L87 Difference]: Start difference. First operand 18976 states and 40625 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:50,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:50,094 INFO L93 Difference]: Finished difference Result 29403 states and 62145 transitions. [2022-04-18 19:04:50,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:04:50,095 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:50,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:50,145 INFO L225 Difference]: With dead ends: 29403 [2022-04-18 19:04:50,145 INFO L226 Difference]: Without dead ends: 29403 [2022-04-18 19:04:50,145 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:04:50,145 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 617 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:50,146 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 266 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:04:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29403 states. [2022-04-18 19:04:50,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29403 to 18982. [2022-04-18 19:04:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18982 states, 18939 states have (on average 2.1456782301071864) internal successors, (40637), 18981 states have internal predecessors, (40637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:50,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18982 states to 18982 states and 40637 transitions. [2022-04-18 19:04:50,458 INFO L78 Accepts]: Start accepts. Automaton has 18982 states and 40637 transitions. Word has length 31 [2022-04-18 19:04:50,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:50,459 INFO L478 AbstractCegarLoop]: Abstraction has 18982 states and 40637 transitions. [2022-04-18 19:04:50,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:50,459 INFO L276 IsEmpty]: Start isEmpty. Operand 18982 states and 40637 transitions. [2022-04-18 19:04:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:50,462 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:50,462 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:50,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-04-18 19:04:50,462 INFO L403 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:50,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:50,462 INFO L85 PathProgramCache]: Analyzing trace with hash 363061863, now seen corresponding path program 17 times [2022-04-18 19:04:50,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:50,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467192087] [2022-04-18 19:04:50,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:50,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:51,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:51,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467192087] [2022-04-18 19:04:51,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467192087] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:51,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:51,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:04:51,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558326647] [2022-04-18 19:04:51,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:51,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:04:51,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:51,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:04:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:04:51,616 INFO L87 Difference]: Start difference. First operand 18982 states and 40637 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:53,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:53,393 INFO L93 Difference]: Finished difference Result 29596 states and 62532 transitions. [2022-04-18 19:04:53,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:04:53,393 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:53,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:53,446 INFO L225 Difference]: With dead ends: 29596 [2022-04-18 19:04:53,446 INFO L226 Difference]: Without dead ends: 29596 [2022-04-18 19:04:53,446 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:04:53,446 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 619 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:53,446 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [619 Valid, 275 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 2358 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:04:53,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29596 states. [2022-04-18 19:04:53,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29596 to 18979. [2022-04-18 19:04:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18979 states, 18936 states have (on average 2.1457013096746937) internal successors, (40631), 18978 states have internal predecessors, (40631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:53,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18979 states to 18979 states and 40631 transitions. [2022-04-18 19:04:53,758 INFO L78 Accepts]: Start accepts. Automaton has 18979 states and 40631 transitions. Word has length 31 [2022-04-18 19:04:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:53,758 INFO L478 AbstractCegarLoop]: Abstraction has 18979 states and 40631 transitions. [2022-04-18 19:04:53,758 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand 18979 states and 40631 transitions. [2022-04-18 19:04:53,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:53,761 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:53,761 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:53,761 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-04-18 19:04:53,761 INFO L403 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:53,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:53,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1814176367, now seen corresponding path program 18 times [2022-04-18 19:04:53,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:53,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803257785] [2022-04-18 19:04:53,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:53,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:54,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:54,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803257785] [2022-04-18 19:04:54,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803257785] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:54,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:54,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:04:54,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211849379] [2022-04-18 19:04:54,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:54,908 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:04:54,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:04:54,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:04:54,909 INFO L87 Difference]: Start difference. First operand 18979 states and 40631 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:56,650 INFO L93 Difference]: Finished difference Result 29201 states and 61664 transitions. [2022-04-18 19:04:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:04:56,651 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:56,696 INFO L225 Difference]: With dead ends: 29201 [2022-04-18 19:04:56,696 INFO L226 Difference]: Without dead ends: 29201 [2022-04-18 19:04:56,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:04:56,696 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 589 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:56,697 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 276 Invalid, 2700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:04:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29201 states. [2022-04-18 19:04:56,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29201 to 19207. [2022-04-18 19:04:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19207 states, 19164 states have (on average 2.1458463786265916) internal successors, (41123), 19206 states have internal predecessors, (41123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:57,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19207 states to 19207 states and 41123 transitions. [2022-04-18 19:04:57,000 INFO L78 Accepts]: Start accepts. Automaton has 19207 states and 41123 transitions. Word has length 31 [2022-04-18 19:04:57,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:57,001 INFO L478 AbstractCegarLoop]: Abstraction has 19207 states and 41123 transitions. [2022-04-18 19:04:57,001 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:57,001 INFO L276 IsEmpty]: Start isEmpty. Operand 19207 states and 41123 transitions. [2022-04-18 19:04:57,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:57,003 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:57,003 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:57,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-04-18 19:04:57,004 INFO L403 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:57,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:57,004 INFO L85 PathProgramCache]: Analyzing trace with hash -957000057, now seen corresponding path program 19 times [2022-04-18 19:04:57,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:57,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876190153] [2022-04-18 19:04:57,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:57,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:57,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:57,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876190153] [2022-04-18 19:04:57,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876190153] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:57,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:57,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:04:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040579410] [2022-04-18 19:04:57,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:57,916 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:04:57,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:57,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:04:57,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:04:57,916 INFO L87 Difference]: Start difference. First operand 19207 states and 41123 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:59,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:59,234 INFO L93 Difference]: Finished difference Result 28672 states and 60631 transitions. [2022-04-18 19:04:59,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:04:59,235 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:04:59,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:59,279 INFO L225 Difference]: With dead ends: 28672 [2022-04-18 19:04:59,279 INFO L226 Difference]: Without dead ends: 28672 [2022-04-18 19:04:59,280 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:04:59,280 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 510 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:59,280 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 253 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:04:59,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28672 states. [2022-04-18 19:04:59,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28672 to 18974. [2022-04-18 19:04:59,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18974 states, 18931 states have (on average 2.1457397918757595) internal successors, (40621), 18973 states have internal predecessors, (40621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:59,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18974 states to 18974 states and 40621 transitions. [2022-04-18 19:04:59,544 INFO L78 Accepts]: Start accepts. Automaton has 18974 states and 40621 transitions. Word has length 31 [2022-04-18 19:04:59,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:59,544 INFO L478 AbstractCegarLoop]: Abstraction has 18974 states and 40621 transitions. [2022-04-18 19:04:59,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 18974 states and 40621 transitions. [2022-04-18 19:04:59,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:04:59,547 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:59,547 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:04:59,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-04-18 19:04:59,547 INFO L403 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:04:59,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:59,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1393338189, now seen corresponding path program 20 times [2022-04-18 19:04:59,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:59,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291453110] [2022-04-18 19:04:59,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:59,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:00,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:00,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291453110] [2022-04-18 19:05:00,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291453110] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:00,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:00,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:05:00,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540551057] [2022-04-18 19:05:00,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:00,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:05:00,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:05:00,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:05:00,550 INFO L87 Difference]: Start difference. First operand 18974 states and 40621 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:01,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:01,943 INFO L93 Difference]: Finished difference Result 29283 states and 61905 transitions. [2022-04-18 19:05:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:05:01,944 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:01,999 INFO L225 Difference]: With dead ends: 29283 [2022-04-18 19:05:01,999 INFO L226 Difference]: Without dead ends: 29283 [2022-04-18 19:05:01,999 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:05:01,999 INFO L913 BasicCegarLoop]: 112 mSDtfsCounter, 486 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:01,999 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 272 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:05:02,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29283 states. [2022-04-18 19:05:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29283 to 18971. [2022-04-18 19:05:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18971 states, 18928 states have (on average 2.1457628909551985) internal successors, (40615), 18970 states have internal predecessors, (40615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:02,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18971 states to 18971 states and 40615 transitions. [2022-04-18 19:05:02,331 INFO L78 Accepts]: Start accepts. Automaton has 18971 states and 40615 transitions. Word has length 31 [2022-04-18 19:05:02,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:02,331 INFO L478 AbstractCegarLoop]: Abstraction has 18971 states and 40615 transitions. [2022-04-18 19:05:02,331 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:02,331 INFO L276 IsEmpty]: Start isEmpty. Operand 18971 states and 40615 transitions. [2022-04-18 19:05:02,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:02,333 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:02,334 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:02,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-04-18 19:05:02,334 INFO L403 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:02,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:02,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2009995819, now seen corresponding path program 21 times [2022-04-18 19:05:02,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:02,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259876055] [2022-04-18 19:05:02,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:02,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:03,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:03,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259876055] [2022-04-18 19:05:03,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259876055] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:03,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:03,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:05:03,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560610374] [2022-04-18 19:05:03,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:03,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:05:03,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:03,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:05:03,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:05:03,451 INFO L87 Difference]: Start difference. First operand 18971 states and 40615 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:05,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:05,154 INFO L93 Difference]: Finished difference Result 29476 states and 62292 transitions. [2022-04-18 19:05:05,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:05:05,155 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:05,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:05,201 INFO L225 Difference]: With dead ends: 29476 [2022-04-18 19:05:05,201 INFO L226 Difference]: Without dead ends: 29476 [2022-04-18 19:05:05,201 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:05:05,202 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 603 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:05,202 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 277 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2412 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:05:05,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29476 states. [2022-04-18 19:05:05,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29476 to 18968. [2022-04-18 19:05:05,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18968 states, 18925 states have (on average 2.1457859973579922) internal successors, (40609), 18967 states have internal predecessors, (40609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:05,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18968 states to 18968 states and 40609 transitions. [2022-04-18 19:05:05,544 INFO L78 Accepts]: Start accepts. Automaton has 18968 states and 40609 transitions. Word has length 31 [2022-04-18 19:05:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:05,544 INFO L478 AbstractCegarLoop]: Abstraction has 18968 states and 40609 transitions. [2022-04-18 19:05:05,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:05,544 INFO L276 IsEmpty]: Start isEmpty. Operand 18968 states and 40609 transitions. [2022-04-18 19:05:05,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:05,547 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:05,547 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:05,547 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-04-18 19:05:05,547 INFO L403 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash -167242411, now seen corresponding path program 22 times [2022-04-18 19:05:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:05,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085688091] [2022-04-18 19:05:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:05,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:06,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:06,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:06,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085688091] [2022-04-18 19:05:06,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085688091] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:06,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:06,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:05:06,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941304545] [2022-04-18 19:05:06,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:06,720 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:05:06,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:06,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:05:06,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:05:06,720 INFO L87 Difference]: Start difference. First operand 18968 states and 40609 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:08,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:08,808 INFO L93 Difference]: Finished difference Result 30433 states and 64184 transitions. [2022-04-18 19:05:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:05:08,809 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:08,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:08,861 INFO L225 Difference]: With dead ends: 30433 [2022-04-18 19:05:08,861 INFO L226 Difference]: Without dead ends: 30433 [2022-04-18 19:05:08,861 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:05:08,861 INFO L913 BasicCegarLoop]: 111 mSDtfsCounter, 513 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 2956 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:08,861 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 281 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2956 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:05:08,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30433 states. [2022-04-18 19:05:09,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30433 to 19196. [2022-04-18 19:05:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19196 states, 19153 states have (on average 2.1459301414921943) internal successors, (41101), 19195 states have internal predecessors, (41101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:09,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19196 states to 19196 states and 41101 transitions. [2022-04-18 19:05:09,237 INFO L78 Accepts]: Start accepts. Automaton has 19196 states and 41101 transitions. Word has length 31 [2022-04-18 19:05:09,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:09,237 INFO L478 AbstractCegarLoop]: Abstraction has 19196 states and 41101 transitions. [2022-04-18 19:05:09,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:09,237 INFO L276 IsEmpty]: Start isEmpty. Operand 19196 states and 41101 transitions. [2022-04-18 19:05:09,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:09,240 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:09,240 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:09,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-04-18 19:05:09,241 INFO L403 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:09,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:09,242 INFO L85 PathProgramCache]: Analyzing trace with hash 689933899, now seen corresponding path program 23 times [2022-04-18 19:05:09,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:09,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030687847] [2022-04-18 19:05:09,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:09,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:10,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:10,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030687847] [2022-04-18 19:05:10,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030687847] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:10,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:10,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:05:10,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815426390] [2022-04-18 19:05:10,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:10,144 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:05:10,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:05:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:05:10,145 INFO L87 Difference]: Start difference. First operand 19196 states and 41101 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:11,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:11,662 INFO L93 Difference]: Finished difference Result 29904 states and 63151 transitions. [2022-04-18 19:05:11,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:05:11,662 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:11,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:11,712 INFO L225 Difference]: With dead ends: 29904 [2022-04-18 19:05:11,712 INFO L226 Difference]: Without dead ends: 29904 [2022-04-18 19:05:11,712 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:05:11,713 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 459 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:11,713 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [459 Valid, 268 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:05:11,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29904 states. [2022-04-18 19:05:11,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29904 to 18965. [2022-04-18 19:05:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18965 states, 18922 states have (on average 2.145809111087623) internal successors, (40603), 18964 states have internal predecessors, (40603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:12,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18965 states to 18965 states and 40603 transitions. [2022-04-18 19:05:12,039 INFO L78 Accepts]: Start accepts. Automaton has 18965 states and 40603 transitions. Word has length 31 [2022-04-18 19:05:12,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:12,040 INFO L478 AbstractCegarLoop]: Abstraction has 18965 states and 40603 transitions. [2022-04-18 19:05:12,040 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:12,040 INFO L276 IsEmpty]: Start isEmpty. Operand 18965 states and 40603 transitions. [2022-04-18 19:05:12,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:12,043 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:12,043 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:12,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-04-18 19:05:12,043 INFO L403 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:12,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:12,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2114345995, now seen corresponding path program 24 times [2022-04-18 19:05:12,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:12,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277939734] [2022-04-18 19:05:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:12,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:13,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:13,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277939734] [2022-04-18 19:05:13,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277939734] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:13,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:13,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:05:13,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083716279] [2022-04-18 19:05:13,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:13,390 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:05:13,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:13,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:05:13,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:05:13,390 INFO L87 Difference]: Start difference. First operand 18965 states and 40603 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:15,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:15,237 INFO L93 Difference]: Finished difference Result 29066 states and 61313 transitions. [2022-04-18 19:05:15,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:05:15,237 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:15,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:15,287 INFO L225 Difference]: With dead ends: 29066 [2022-04-18 19:05:15,287 INFO L226 Difference]: Without dead ends: 29066 [2022-04-18 19:05:15,288 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:05:15,288 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 577 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 2878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:15,288 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 269 Invalid, 2878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:05:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29066 states. [2022-04-18 19:05:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29066 to 19031. [2022-04-18 19:05:15,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19031 states, 18988 states have (on average 2.1470402359384875) internal successors, (40768), 19030 states have internal predecessors, (40768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:15,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19031 states to 19031 states and 40768 transitions. [2022-04-18 19:05:15,681 INFO L78 Accepts]: Start accepts. Automaton has 19031 states and 40768 transitions. Word has length 31 [2022-04-18 19:05:15,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:15,681 INFO L478 AbstractCegarLoop]: Abstraction has 19031 states and 40768 transitions. [2022-04-18 19:05:15,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand 19031 states and 40768 transitions. [2022-04-18 19:05:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:15,684 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:15,684 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:15,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-04-18 19:05:15,684 INFO L403 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:15,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:15,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1323444991, now seen corresponding path program 25 times [2022-04-18 19:05:15,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:15,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274988902] [2022-04-18 19:05:15,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:15,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:16,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:16,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274988902] [2022-04-18 19:05:16,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274988902] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:16,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:16,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:05:16,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590784474] [2022-04-18 19:05:16,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:16,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:05:16,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:16,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:05:16,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:05:16,701 INFO L87 Difference]: Start difference. First operand 19031 states and 40768 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:18,191 INFO L93 Difference]: Finished difference Result 29297 states and 61777 transitions. [2022-04-18 19:05:18,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:05:18,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:18,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:18,237 INFO L225 Difference]: With dead ends: 29297 [2022-04-18 19:05:18,237 INFO L226 Difference]: Without dead ends: 29297 [2022-04-18 19:05:18,237 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:05:18,237 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 498 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:18,237 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [498 Valid, 252 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:05:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29297 states. [2022-04-18 19:05:18,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29297 to 18998. [2022-04-18 19:05:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18998 states, 18955 states have (on average 2.1472962279082037) internal successors, (40702), 18997 states have internal predecessors, (40702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:18,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18998 states to 18998 states and 40702 transitions. [2022-04-18 19:05:18,555 INFO L78 Accepts]: Start accepts. Automaton has 18998 states and 40702 transitions. Word has length 31 [2022-04-18 19:05:18,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:18,555 INFO L478 AbstractCegarLoop]: Abstraction has 18998 states and 40702 transitions. [2022-04-18 19:05:18,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:18,555 INFO L276 IsEmpty]: Start isEmpty. Operand 18998 states and 40702 transitions. [2022-04-18 19:05:18,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:18,558 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:18,558 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:18,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-04-18 19:05:18,558 INFO L403 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:18,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1749404181, now seen corresponding path program 26 times [2022-04-18 19:05:18,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:18,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352239748] [2022-04-18 19:05:18,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:18,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:19,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:19,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352239748] [2022-04-18 19:05:19,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352239748] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:19,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:19,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:05:19,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894287469] [2022-04-18 19:05:19,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:19,500 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:05:19,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:19,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:05:19,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:05:19,500 INFO L87 Difference]: Start difference. First operand 18998 states and 40702 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:21,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:21,339 INFO L93 Difference]: Finished difference Result 24110 states and 51121 transitions. [2022-04-18 19:05:21,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:05:21,340 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:21,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:21,376 INFO L225 Difference]: With dead ends: 24110 [2022-04-18 19:05:21,376 INFO L226 Difference]: Without dead ends: 24110 [2022-04-18 19:05:21,376 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:05:21,376 INFO L913 BasicCegarLoop]: 88 mSDtfsCounter, 215 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 2822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:21,376 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 310 Invalid, 2822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:05:21,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24110 states. [2022-04-18 19:05:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24110 to 19052. [2022-04-18 19:05:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19052 states, 19009 states have (on average 2.1470356147088223) internal successors, (40813), 19051 states have internal predecessors, (40813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:21,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19052 states to 19052 states and 40813 transitions. [2022-04-18 19:05:21,650 INFO L78 Accepts]: Start accepts. Automaton has 19052 states and 40813 transitions. Word has length 31 [2022-04-18 19:05:21,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:21,650 INFO L478 AbstractCegarLoop]: Abstraction has 19052 states and 40813 transitions. [2022-04-18 19:05:21,650 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:21,650 INFO L276 IsEmpty]: Start isEmpty. Operand 19052 states and 40813 transitions. [2022-04-18 19:05:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:21,653 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:21,653 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:21,653 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-04-18 19:05:21,653 INFO L403 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:21,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:21,654 INFO L85 PathProgramCache]: Analyzing trace with hash -606114239, now seen corresponding path program 27 times [2022-04-18 19:05:21,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:21,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148342375] [2022-04-18 19:05:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:22,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:22,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:22,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148342375] [2022-04-18 19:05:22,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148342375] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:22,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:22,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:05:22,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551242180] [2022-04-18 19:05:22,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:22,261 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:05:22,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:22,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:05:22,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:05:22,262 INFO L87 Difference]: Start difference. First operand 19052 states and 40813 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:24,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:24,301 INFO L93 Difference]: Finished difference Result 24045 states and 50981 transitions. [2022-04-18 19:05:24,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:05:24,302 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:24,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:24,338 INFO L225 Difference]: With dead ends: 24045 [2022-04-18 19:05:24,338 INFO L226 Difference]: Without dead ends: 24045 [2022-04-18 19:05:24,339 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=563, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:05:24,339 INFO L913 BasicCegarLoop]: 89 mSDtfsCounter, 274 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 3212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:24,339 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 309 Invalid, 3212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:05:24,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24045 states. [2022-04-18 19:05:24,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24045 to 19037. [2022-04-18 19:05:24,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19037 states, 18994 states have (on average 2.147204380330631) internal successors, (40784), 19036 states have internal predecessors, (40784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19037 states to 19037 states and 40784 transitions. [2022-04-18 19:05:24,614 INFO L78 Accepts]: Start accepts. Automaton has 19037 states and 40784 transitions. Word has length 31 [2022-04-18 19:05:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:24,614 INFO L478 AbstractCegarLoop]: Abstraction has 19037 states and 40784 transitions. [2022-04-18 19:05:24,614 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:24,614 INFO L276 IsEmpty]: Start isEmpty. Operand 19037 states and 40784 transitions. [2022-04-18 19:05:24,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:24,617 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:24,617 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:24,617 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-04-18 19:05:24,617 INFO L403 AbstractCegarLoop]: === Iteration 102 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:24,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash -977579986, now seen corresponding path program 24 times [2022-04-18 19:05:24,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:24,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886115911] [2022-04-18 19:05:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:24,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:25,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:25,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886115911] [2022-04-18 19:05:25,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886115911] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:25,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:25,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:05:25,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142426007] [2022-04-18 19:05:25,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:25,018 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:05:25,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:25,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:05:25,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:05:25,018 INFO L87 Difference]: Start difference. First operand 19037 states and 40784 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:28,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:28,090 INFO L93 Difference]: Finished difference Result 29457 states and 62356 transitions. [2022-04-18 19:05:28,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:05:28,090 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:28,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:28,143 INFO L225 Difference]: With dead ends: 29457 [2022-04-18 19:05:28,143 INFO L226 Difference]: Without dead ends: 29457 [2022-04-18 19:05:28,143 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-04-18 19:05:28,143 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 604 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 3624 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 3624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:28,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [604 Valid, 491 Invalid, 4087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 3624 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:05:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29457 states. [2022-04-18 19:05:28,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29457 to 19480. [2022-04-18 19:05:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19480 states, 19437 states have (on average 2.1479137727015485) internal successors, (41749), 19479 states have internal predecessors, (41749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:28,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19480 states to 19480 states and 41749 transitions. [2022-04-18 19:05:28,528 INFO L78 Accepts]: Start accepts. Automaton has 19480 states and 41749 transitions. Word has length 31 [2022-04-18 19:05:28,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:28,528 INFO L478 AbstractCegarLoop]: Abstraction has 19480 states and 41749 transitions. [2022-04-18 19:05:28,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:28,528 INFO L276 IsEmpty]: Start isEmpty. Operand 19480 states and 41749 transitions. [2022-04-18 19:05:28,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:28,531 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:28,531 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:28,531 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-04-18 19:05:28,531 INFO L403 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:28,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:28,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1073055363, now seen corresponding path program 42 times [2022-04-18 19:05:28,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:28,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595292989] [2022-04-18 19:05:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:28,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:29,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:29,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595292989] [2022-04-18 19:05:29,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595292989] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:29,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:29,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:05:29,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332713289] [2022-04-18 19:05:29,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:29,079 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:05:29,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:29,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:05:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:05:29,080 INFO L87 Difference]: Start difference. First operand 19480 states and 41749 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:32,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:32,391 INFO L93 Difference]: Finished difference Result 22782 states and 48402 transitions. [2022-04-18 19:05:32,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:05:32,392 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:32,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:32,428 INFO L225 Difference]: With dead ends: 22782 [2022-04-18 19:05:32,428 INFO L226 Difference]: Without dead ends: 22782 [2022-04-18 19:05:32,429 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=214, Invalid=778, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:05:32,429 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 726 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 5256 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 5330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:32,429 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 1050 Invalid, 5330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5256 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:05:32,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22782 states. [2022-04-18 19:05:32,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22782 to 19509. [2022-04-18 19:05:32,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19509 states, 19466 states have (on average 2.147744785780335) internal successors, (41808), 19508 states have internal predecessors, (41808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:32,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19509 states to 19509 states and 41808 transitions. [2022-04-18 19:05:32,713 INFO L78 Accepts]: Start accepts. Automaton has 19509 states and 41808 transitions. Word has length 31 [2022-04-18 19:05:32,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:32,713 INFO L478 AbstractCegarLoop]: Abstraction has 19509 states and 41808 transitions. [2022-04-18 19:05:32,713 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:32,713 INFO L276 IsEmpty]: Start isEmpty. Operand 19509 states and 41808 transitions. [2022-04-18 19:05:32,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:32,716 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:32,716 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:32,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-04-18 19:05:32,717 INFO L403 AbstractCegarLoop]: === Iteration 104 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:32,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:32,717 INFO L85 PathProgramCache]: Analyzing trace with hash 595391590, now seen corresponding path program 25 times [2022-04-18 19:05:32,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:32,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863340534] [2022-04-18 19:05:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:32,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:33,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:33,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863340534] [2022-04-18 19:05:33,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863340534] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:33,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:33,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:05:33,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163166710] [2022-04-18 19:05:33,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:33,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:05:33,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:33,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:05:33,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:05:33,706 INFO L87 Difference]: Start difference. First operand 19509 states and 41808 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:36,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:36,864 INFO L93 Difference]: Finished difference Result 24052 states and 51054 transitions. [2022-04-18 19:05:36,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-04-18 19:05:36,864 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:36,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:36,903 INFO L225 Difference]: With dead ends: 24052 [2022-04-18 19:05:36,903 INFO L226 Difference]: Without dead ends: 24052 [2022-04-18 19:05:36,904 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=375, Invalid=1347, Unknown=0, NotChecked=0, Total=1722 [2022-04-18 19:05:36,904 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 603 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 3540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:36,904 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 992 Invalid, 3540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:05:36,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24052 states. [2022-04-18 19:05:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24052 to 20405. [2022-04-18 19:05:37,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20405 states, 20362 states have (on average 2.14856104508398) internal successors, (43749), 20404 states have internal predecessors, (43749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20405 states to 20405 states and 43749 transitions. [2022-04-18 19:05:37,198 INFO L78 Accepts]: Start accepts. Automaton has 20405 states and 43749 transitions. Word has length 31 [2022-04-18 19:05:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:37,198 INFO L478 AbstractCegarLoop]: Abstraction has 20405 states and 43749 transitions. [2022-04-18 19:05:37,199 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 20405 states and 43749 transitions. [2022-04-18 19:05:37,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:37,201 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:37,202 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:37,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-04-18 19:05:37,202 INFO L403 AbstractCegarLoop]: === Iteration 105 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:37,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:37,202 INFO L85 PathProgramCache]: Analyzing trace with hash -443558702, now seen corresponding path program 26 times [2022-04-18 19:05:37,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:37,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598056397] [2022-04-18 19:05:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:37,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:37,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598056397] [2022-04-18 19:05:37,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598056397] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:37,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:37,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:37,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844773806] [2022-04-18 19:05:37,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:37,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:37,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:37,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:37,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:37,884 INFO L87 Difference]: Start difference. First operand 20405 states and 43749 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:39,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:39,921 INFO L93 Difference]: Finished difference Result 25612 states and 54347 transitions. [2022-04-18 19:05:39,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:05:39,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:39,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:39,966 INFO L225 Difference]: With dead ends: 25612 [2022-04-18 19:05:39,966 INFO L226 Difference]: Without dead ends: 25612 [2022-04-18 19:05:39,967 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=304, Invalid=688, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:05:39,967 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 676 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:39,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 476 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:05:39,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25612 states. [2022-04-18 19:05:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25612 to 21048. [2022-04-18 19:05:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21048 states, 21005 states have (on average 2.1522018567007857) internal successors, (45207), 21047 states have internal predecessors, (45207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:40,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21048 states to 21048 states and 45207 transitions. [2022-04-18 19:05:40,294 INFO L78 Accepts]: Start accepts. Automaton has 21048 states and 45207 transitions. Word has length 31 [2022-04-18 19:05:40,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:40,294 INFO L478 AbstractCegarLoop]: Abstraction has 21048 states and 45207 transitions. [2022-04-18 19:05:40,294 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 21048 states and 45207 transitions. [2022-04-18 19:05:40,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:40,299 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:40,299 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:40,299 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-04-18 19:05:40,299 INFO L403 AbstractCegarLoop]: === Iteration 106 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:40,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1492155094, now seen corresponding path program 27 times [2022-04-18 19:05:40,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:40,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866531351] [2022-04-18 19:05:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:40,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:41,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:41,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866531351] [2022-04-18 19:05:41,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866531351] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:41,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:41,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:05:41,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46057755] [2022-04-18 19:05:41,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:41,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:05:41,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:41,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:05:41,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:05:41,460 INFO L87 Difference]: Start difference. First operand 21048 states and 45207 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:44,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:44,528 INFO L93 Difference]: Finished difference Result 27726 states and 58879 transitions. [2022-04-18 19:05:44,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-04-18 19:05:44,528 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:44,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:44,575 INFO L225 Difference]: With dead ends: 27726 [2022-04-18 19:05:44,575 INFO L226 Difference]: Without dead ends: 27726 [2022-04-18 19:05:44,576 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=437, Invalid=1633, Unknown=0, NotChecked=0, Total=2070 [2022-04-18 19:05:44,576 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 709 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 3477 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 3890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 3477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:44,576 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [709 Valid, 1047 Invalid, 3890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 3477 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:05:44,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27726 states. [2022-04-18 19:05:44,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27726 to 22449. [2022-04-18 19:05:44,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22449 states, 22406 states have (on average 2.154779969650986) internal successors, (48280), 22448 states have internal predecessors, (48280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:44,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22449 states to 22449 states and 48280 transitions. [2022-04-18 19:05:44,922 INFO L78 Accepts]: Start accepts. Automaton has 22449 states and 48280 transitions. Word has length 31 [2022-04-18 19:05:44,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:44,922 INFO L478 AbstractCegarLoop]: Abstraction has 22449 states and 48280 transitions. [2022-04-18 19:05:44,922 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:44,922 INFO L276 IsEmpty]: Start isEmpty. Operand 22449 states and 48280 transitions. [2022-04-18 19:05:44,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:44,926 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:44,926 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:44,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-04-18 19:05:44,926 INFO L403 AbstractCegarLoop]: === Iteration 107 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:44,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:44,926 INFO L85 PathProgramCache]: Analyzing trace with hash -81804018, now seen corresponding path program 28 times [2022-04-18 19:05:44,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:44,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868733679] [2022-04-18 19:05:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:44,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:46,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:46,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868733679] [2022-04-18 19:05:46,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868733679] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:46,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:46,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:05:46,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512738783] [2022-04-18 19:05:46,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:46,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:05:46,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:46,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:05:46,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:05:46,001 INFO L87 Difference]: Start difference. First operand 22449 states and 48280 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:49,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:49,099 INFO L93 Difference]: Finished difference Result 29042 states and 61781 transitions. [2022-04-18 19:05:49,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-04-18 19:05:49,099 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:49,149 INFO L225 Difference]: With dead ends: 29042 [2022-04-18 19:05:49,149 INFO L226 Difference]: Without dead ends: 29042 [2022-04-18 19:05:49,150 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-04-18 19:05:49,150 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 644 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 3653 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 3653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:49,150 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 1157 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 3653 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:05:49,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29042 states. [2022-04-18 19:05:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29042 to 23805. [2022-04-18 19:05:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23805 states, 23762 states have (on average 2.15705748674354) internal successors, (51256), 23804 states have internal predecessors, (51256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:49,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23805 states to 23805 states and 51256 transitions. [2022-04-18 19:05:49,466 INFO L78 Accepts]: Start accepts. Automaton has 23805 states and 51256 transitions. Word has length 31 [2022-04-18 19:05:49,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:49,466 INFO L478 AbstractCegarLoop]: Abstraction has 23805 states and 51256 transitions. [2022-04-18 19:05:49,466 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:49,466 INFO L276 IsEmpty]: Start isEmpty. Operand 23805 states and 51256 transitions. [2022-04-18 19:05:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:49,470 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:49,470 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:49,470 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-04-18 19:05:49,470 INFO L403 AbstractCegarLoop]: === Iteration 108 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:49,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2103888666, now seen corresponding path program 29 times [2022-04-18 19:05:49,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:49,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288538743] [2022-04-18 19:05:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:49,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:49,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:49,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288538743] [2022-04-18 19:05:49,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288538743] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:49,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:49,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:05:49,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855956393] [2022-04-18 19:05:49,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:49,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:05:49,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:49,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:05:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:05:49,782 INFO L87 Difference]: Start difference. First operand 23805 states and 51256 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:51,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:51,760 INFO L93 Difference]: Finished difference Result 28719 states and 61088 transitions. [2022-04-18 19:05:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:05:51,761 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:51,808 INFO L225 Difference]: With dead ends: 28719 [2022-04-18 19:05:51,808 INFO L226 Difference]: Without dead ends: 28719 [2022-04-18 19:05:51,809 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:05:51,809 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 636 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 2863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:51,809 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 513 Invalid, 2863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:05:51,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28719 states. [2022-04-18 19:05:52,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28719 to 24078. [2022-04-18 19:05:52,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24078 states, 24035 states have (on average 2.1568545870605367) internal successors, (51840), 24077 states have internal predecessors, (51840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24078 states to 24078 states and 51840 transitions. [2022-04-18 19:05:52,140 INFO L78 Accepts]: Start accepts. Automaton has 24078 states and 51840 transitions. Word has length 31 [2022-04-18 19:05:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:52,140 INFO L478 AbstractCegarLoop]: Abstraction has 24078 states and 51840 transitions. [2022-04-18 19:05:52,141 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:52,141 INFO L276 IsEmpty]: Start isEmpty. Operand 24078 states and 51840 transitions. [2022-04-18 19:05:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:52,144 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:52,144 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:52,145 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-04-18 19:05:52,145 INFO L403 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:52,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:52,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1528670147, now seen corresponding path program 43 times [2022-04-18 19:05:52,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:52,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391842194] [2022-04-18 19:05:52,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:52,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:52,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:52,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391842194] [2022-04-18 19:05:52,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391842194] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:52,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:52,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:05:52,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910888301] [2022-04-18 19:05:52,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:52,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:05:52,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:52,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:05:52,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:05:52,650 INFO L87 Difference]: Start difference. First operand 24078 states and 51840 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:55,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:55,475 INFO L93 Difference]: Finished difference Result 28589 states and 60953 transitions. [2022-04-18 19:05:55,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:05:55,476 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:05:55,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:55,523 INFO L225 Difference]: With dead ends: 28589 [2022-04-18 19:05:55,524 INFO L226 Difference]: Without dead ends: 28589 [2022-04-18 19:05:55,524 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=775, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:05:55,524 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 790 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 4147 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 4235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 4147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:55,524 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 1000 Invalid, 4235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 4147 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:05:55,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28589 states. [2022-04-18 19:05:55,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28589 to 24344. [2022-04-18 19:05:55,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24344 states, 24301 states have (on average 2.1570717254433975) internal successors, (52419), 24343 states have internal predecessors, (52419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:55,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24344 states to 24344 states and 52419 transitions. [2022-04-18 19:05:55,989 INFO L78 Accepts]: Start accepts. Automaton has 24344 states and 52419 transitions. Word has length 31 [2022-04-18 19:05:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:55,990 INFO L478 AbstractCegarLoop]: Abstraction has 24344 states and 52419 transitions. [2022-04-18 19:05:55,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:55,990 INFO L276 IsEmpty]: Start isEmpty. Operand 24344 states and 52419 transitions. [2022-04-18 19:05:55,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:05:55,994 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:55,994 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:05:55,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-04-18 19:05:55,994 INFO L403 AbstractCegarLoop]: === Iteration 110 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:05:55,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:55,995 INFO L85 PathProgramCache]: Analyzing trace with hash -393766604, now seen corresponding path program 30 times [2022-04-18 19:05:55,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:55,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448851762] [2022-04-18 19:05:55,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:55,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:56,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:56,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448851762] [2022-04-18 19:05:56,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448851762] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:56,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:56,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:05:56,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021840752] [2022-04-18 19:05:56,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:56,517 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:05:56,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:56,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:05:56,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:05:56,518 INFO L87 Difference]: Start difference. First operand 24344 states and 52419 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:00,299 INFO L93 Difference]: Finished difference Result 33219 states and 70538 transitions. [2022-04-18 19:06:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-04-18 19:06:00,300 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:00,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:00,355 INFO L225 Difference]: With dead ends: 33219 [2022-04-18 19:06:00,355 INFO L226 Difference]: Without dead ends: 33219 [2022-04-18 19:06:00,356 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=618, Invalid=2462, Unknown=0, NotChecked=0, Total=3080 [2022-04-18 19:06:00,356 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 801 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 4054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:00,356 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [801 Valid, 1564 Invalid, 4054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:06:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33219 states. [2022-04-18 19:06:00,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33219 to 28494. [2022-04-18 19:06:00,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28494 states, 28451 states have (on average 2.156831042845594) internal successors, (61364), 28493 states have internal predecessors, (61364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:00,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28494 states to 28494 states and 61364 transitions. [2022-04-18 19:06:00,882 INFO L78 Accepts]: Start accepts. Automaton has 28494 states and 61364 transitions. Word has length 31 [2022-04-18 19:06:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:00,882 INFO L478 AbstractCegarLoop]: Abstraction has 28494 states and 61364 transitions. [2022-04-18 19:06:00,882 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 28494 states and 61364 transitions. [2022-04-18 19:06:00,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:00,886 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:00,886 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:00,887 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-04-18 19:06:00,887 INFO L403 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:00,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:00,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1056175087, now seen corresponding path program 44 times [2022-04-18 19:06:00,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:00,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733627697] [2022-04-18 19:06:00,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:00,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:01,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:01,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733627697] [2022-04-18 19:06:01,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733627697] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:01,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:01,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:06:01,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452005420] [2022-04-18 19:06:01,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:01,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:06:01,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:01,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:06:01,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:06:01,538 INFO L87 Difference]: Start difference. First operand 28494 states and 61364 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:04,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:04,463 INFO L93 Difference]: Finished difference Result 31507 states and 67224 transitions. [2022-04-18 19:06:04,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:06:04,464 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:04,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:04,511 INFO L225 Difference]: With dead ends: 31507 [2022-04-18 19:06:04,511 INFO L226 Difference]: Without dead ends: 31507 [2022-04-18 19:06:04,511 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:06:04,511 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 662 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 4146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:04,512 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [662 Valid, 1300 Invalid, 4146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 4082 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:06:04,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31507 states. [2022-04-18 19:06:04,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31507 to 28636. [2022-04-18 19:06:04,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28636 states, 28593 states have (on average 2.1575910187808205) internal successors, (61692), 28635 states have internal predecessors, (61692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:05,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28636 states to 28636 states and 61692 transitions. [2022-04-18 19:06:05,069 INFO L78 Accepts]: Start accepts. Automaton has 28636 states and 61692 transitions. Word has length 31 [2022-04-18 19:06:05,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:05,069 INFO L478 AbstractCegarLoop]: Abstraction has 28636 states and 61692 transitions. [2022-04-18 19:06:05,069 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:05,069 INFO L276 IsEmpty]: Start isEmpty. Operand 28636 states and 61692 transitions. [2022-04-18 19:06:05,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:05,073 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:05,074 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:05,074 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-04-18 19:06:05,074 INFO L403 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:05,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:05,074 INFO L85 PathProgramCache]: Analyzing trace with hash 212178651, now seen corresponding path program 45 times [2022-04-18 19:06:05,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:05,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429253359] [2022-04-18 19:06:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:05,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:05,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:05,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429253359] [2022-04-18 19:06:05,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429253359] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:05,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:05,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:06:05,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265921840] [2022-04-18 19:06:05,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:05,733 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:06:05,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:05,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:06:05,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:06:05,733 INFO L87 Difference]: Start difference. First operand 28636 states and 61692 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:08,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:08,325 INFO L93 Difference]: Finished difference Result 30550 states and 65279 transitions. [2022-04-18 19:06:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:06:08,325 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:08,385 INFO L225 Difference]: With dead ends: 30550 [2022-04-18 19:06:08,385 INFO L226 Difference]: Without dead ends: 30550 [2022-04-18 19:06:08,385 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:06:08,385 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 596 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 3599 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:08,385 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 1222 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3599 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:06:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30550 states. [2022-04-18 19:06:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30550 to 28642. [2022-04-18 19:06:08,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28642 states, 28599 states have (on average 2.157767754117277) internal successors, (61710), 28641 states have internal predecessors, (61710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28642 states to 28642 states and 61710 transitions. [2022-04-18 19:06:08,901 INFO L78 Accepts]: Start accepts. Automaton has 28642 states and 61710 transitions. Word has length 31 [2022-04-18 19:06:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:08,901 INFO L478 AbstractCegarLoop]: Abstraction has 28642 states and 61710 transitions. [2022-04-18 19:06:08,901 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 28642 states and 61710 transitions. [2022-04-18 19:06:08,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:08,906 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:08,906 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:08,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-04-18 19:06:08,906 INFO L403 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:08,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:08,907 INFO L85 PathProgramCache]: Analyzing trace with hash 223566501, now seen corresponding path program 46 times [2022-04-18 19:06:08,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:08,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411918418] [2022-04-18 19:06:08,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:08,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:09,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:09,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411918418] [2022-04-18 19:06:09,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411918418] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:09,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:09,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:06:09,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688235674] [2022-04-18 19:06:09,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:09,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:06:09,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:09,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:06:09,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:06:09,565 INFO L87 Difference]: Start difference. First operand 28642 states and 61710 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:12,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:12,259 INFO L93 Difference]: Finished difference Result 30559 states and 65295 transitions. [2022-04-18 19:06:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:06:12,259 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:12,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:12,316 INFO L225 Difference]: With dead ends: 30559 [2022-04-18 19:06:12,317 INFO L226 Difference]: Without dead ends: 30559 [2022-04-18 19:06:12,317 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:06:12,317 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 640 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 3698 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 3769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:12,317 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [640 Valid, 1126 Invalid, 3769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3698 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:06:12,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30559 states. [2022-04-18 19:06:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30559 to 28640. [2022-04-18 19:06:12,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28640 states, 28597 states have (on average 2.157708850578732) internal successors, (61704), 28639 states have internal predecessors, (61704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:12,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28640 states to 28640 states and 61704 transitions. [2022-04-18 19:06:12,797 INFO L78 Accepts]: Start accepts. Automaton has 28640 states and 61704 transitions. Word has length 31 [2022-04-18 19:06:12,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:12,797 INFO L478 AbstractCegarLoop]: Abstraction has 28640 states and 61704 transitions. [2022-04-18 19:06:12,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:12,797 INFO L276 IsEmpty]: Start isEmpty. Operand 28640 states and 61704 transitions. [2022-04-18 19:06:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:12,802 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:12,802 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:12,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-04-18 19:06:12,802 INFO L403 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash 468448521, now seen corresponding path program 47 times [2022-04-18 19:06:12,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:12,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649532462] [2022-04-18 19:06:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:12,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:13,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:13,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649532462] [2022-04-18 19:06:13,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649532462] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:13,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:13,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:06:13,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129991541] [2022-04-18 19:06:13,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:13,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:06:13,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:13,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:06:13,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:06:13,331 INFO L87 Difference]: Start difference. First operand 28640 states and 61704 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:16,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:16,188 INFO L93 Difference]: Finished difference Result 30571 states and 65317 transitions. [2022-04-18 19:06:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:06:16,188 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:16,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:16,241 INFO L225 Difference]: With dead ends: 30571 [2022-04-18 19:06:16,242 INFO L226 Difference]: Without dead ends: 30571 [2022-04-18 19:06:16,242 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:06:16,242 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 590 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 4038 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:16,242 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 1130 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 4038 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:06:16,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30571 states. [2022-04-18 19:06:16,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30571 to 28638. [2022-04-18 19:06:16,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28638 states, 28595 states have (on average 2.1576499388004895) internal successors, (61698), 28637 states have internal predecessors, (61698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28638 states to 28638 states and 61698 transitions. [2022-04-18 19:06:16,663 INFO L78 Accepts]: Start accepts. Automaton has 28638 states and 61698 transitions. Word has length 31 [2022-04-18 19:06:16,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:16,663 INFO L478 AbstractCegarLoop]: Abstraction has 28638 states and 61698 transitions. [2022-04-18 19:06:16,663 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 28638 states and 61698 transitions. [2022-04-18 19:06:16,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:16,668 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:16,668 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:16,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-04-18 19:06:16,668 INFO L403 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:16,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:16,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1907951989, now seen corresponding path program 48 times [2022-04-18 19:06:16,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:16,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738816660] [2022-04-18 19:06:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:16,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:17,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:17,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738816660] [2022-04-18 19:06:17,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738816660] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:17,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:17,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:06:17,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24383711] [2022-04-18 19:06:17,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:17,262 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:06:17,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:17,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:06:17,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:06:17,262 INFO L87 Difference]: Start difference. First operand 28638 states and 61698 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:19,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:19,719 INFO L93 Difference]: Finished difference Result 30566 states and 65303 transitions. [2022-04-18 19:06:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:06:19,719 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:19,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:19,778 INFO L225 Difference]: With dead ends: 30566 [2022-04-18 19:06:19,778 INFO L226 Difference]: Without dead ends: 30566 [2022-04-18 19:06:19,779 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:06:19,779 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 569 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 2931 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:19,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 1121 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2931 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:06:19,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30566 states. [2022-04-18 19:06:20,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30566 to 28542. [2022-04-18 19:06:20,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28542 states, 28499 states have (on average 2.156987964489982) internal successors, (61472), 28541 states have internal predecessors, (61472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:20,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28542 states to 28542 states and 61472 transitions. [2022-04-18 19:06:20,212 INFO L78 Accepts]: Start accepts. Automaton has 28542 states and 61472 transitions. Word has length 31 [2022-04-18 19:06:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:20,212 INFO L478 AbstractCegarLoop]: Abstraction has 28542 states and 61472 transitions. [2022-04-18 19:06:20,212 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 28542 states and 61472 transitions. [2022-04-18 19:06:20,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:20,216 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:20,216 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:20,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-04-18 19:06:20,216 INFO L403 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:20,217 INFO L85 PathProgramCache]: Analyzing trace with hash 617073725, now seen corresponding path program 49 times [2022-04-18 19:06:20,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:20,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243692932] [2022-04-18 19:06:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:20,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:20,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:20,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243692932] [2022-04-18 19:06:20,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243692932] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:20,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:20,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:06:20,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725568365] [2022-04-18 19:06:20,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:20,830 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:06:20,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:20,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:06:20,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:06:20,831 INFO L87 Difference]: Start difference. First operand 28542 states and 61472 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:23,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:23,819 INFO L93 Difference]: Finished difference Result 32206 states and 68994 transitions. [2022-04-18 19:06:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:06:23,820 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:23,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:23,875 INFO L225 Difference]: With dead ends: 32206 [2022-04-18 19:06:23,875 INFO L226 Difference]: Without dead ends: 32206 [2022-04-18 19:06:23,875 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:06:23,875 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 672 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 4401 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 4473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:23,875 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 876 Invalid, 4473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4401 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:06:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32206 states. [2022-04-18 19:06:24,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32206 to 28745. [2022-04-18 19:06:24,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28745 states, 28702 states have (on average 2.1565396139641835) internal successors, (61897), 28744 states have internal predecessors, (61897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28745 states to 28745 states and 61897 transitions. [2022-04-18 19:06:24,265 INFO L78 Accepts]: Start accepts. Automaton has 28745 states and 61897 transitions. Word has length 31 [2022-04-18 19:06:24,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:24,265 INFO L478 AbstractCegarLoop]: Abstraction has 28745 states and 61897 transitions. [2022-04-18 19:06:24,265 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 28745 states and 61897 transitions. [2022-04-18 19:06:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:24,270 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:24,270 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:24,270 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-04-18 19:06:24,270 INFO L403 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:24,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:24,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1563143309, now seen corresponding path program 28 times [2022-04-18 19:06:24,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:24,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482591784] [2022-04-18 19:06:24,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:24,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:25,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:25,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:25,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482591784] [2022-04-18 19:06:25,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482591784] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:25,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:25,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:06:25,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17127042] [2022-04-18 19:06:25,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:25,345 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:06:25,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:25,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:06:25,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:06:25,346 INFO L87 Difference]: Start difference. First operand 28745 states and 61897 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:27,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:27,049 INFO L93 Difference]: Finished difference Result 47748 states and 101168 transitions. [2022-04-18 19:06:27,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:06:27,049 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:27,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:27,129 INFO L225 Difference]: With dead ends: 47748 [2022-04-18 19:06:27,129 INFO L226 Difference]: Without dead ends: 47748 [2022-04-18 19:06:27,129 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:06:27,129 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 681 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 2532 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 2532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:27,129 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [681 Valid, 466 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 2532 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:06:27,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47748 states. [2022-04-18 19:06:27,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47748 to 33010. [2022-04-18 19:06:27,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33010 states, 32967 states have (on average 2.1601904935238267) internal successors, (71215), 33009 states have internal predecessors, (71215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:27,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33010 states to 33010 states and 71215 transitions. [2022-04-18 19:06:27,703 INFO L78 Accepts]: Start accepts. Automaton has 33010 states and 71215 transitions. Word has length 31 [2022-04-18 19:06:27,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:27,703 INFO L478 AbstractCegarLoop]: Abstraction has 33010 states and 71215 transitions. [2022-04-18 19:06:27,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:27,703 INFO L276 IsEmpty]: Start isEmpty. Operand 33010 states and 71215 transitions. [2022-04-18 19:06:27,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:27,709 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:27,709 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:27,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-04-18 19:06:27,709 INFO L403 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:27,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:27,709 INFO L85 PathProgramCache]: Analyzing trace with hash 671510021, now seen corresponding path program 29 times [2022-04-18 19:06:27,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:27,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522742238] [2022-04-18 19:06:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:27,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:28,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:28,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522742238] [2022-04-18 19:06:28,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522742238] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:28,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:28,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:06:28,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743008133] [2022-04-18 19:06:28,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:28,907 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:06:28,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:28,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:06:28,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:06:28,908 INFO L87 Difference]: Start difference. First operand 33010 states and 71215 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:30,640 INFO L93 Difference]: Finished difference Result 50607 states and 107180 transitions. [2022-04-18 19:06:30,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:06:30,640 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:30,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:30,747 INFO L225 Difference]: With dead ends: 50607 [2022-04-18 19:06:30,748 INFO L226 Difference]: Without dead ends: 50607 [2022-04-18 19:06:30,748 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:06:30,748 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 722 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 2399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:30,748 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [722 Valid, 452 Invalid, 2399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:06:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50607 states. [2022-04-18 19:06:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50607 to 33066. [2022-04-18 19:06:31,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33066 states, 33023 states have (on average 2.159555461345123) internal successors, (71315), 33065 states have internal predecessors, (71315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33066 states to 33066 states and 71315 transitions. [2022-04-18 19:06:31,397 INFO L78 Accepts]: Start accepts. Automaton has 33066 states and 71315 transitions. Word has length 31 [2022-04-18 19:06:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:31,398 INFO L478 AbstractCegarLoop]: Abstraction has 33066 states and 71315 transitions. [2022-04-18 19:06:31,398 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 33066 states and 71315 transitions. [2022-04-18 19:06:31,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:31,403 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:31,403 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:31,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-04-18 19:06:31,403 INFO L403 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:31,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:31,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1505728209, now seen corresponding path program 30 times [2022-04-18 19:06:31,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:31,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950532331] [2022-04-18 19:06:31,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:31,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:32,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:32,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950532331] [2022-04-18 19:06:32,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950532331] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:32,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:32,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:06:32,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075603758] [2022-04-18 19:06:32,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:32,479 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:06:32,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:06:32,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:06:32,479 INFO L87 Difference]: Start difference. First operand 33066 states and 71315 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:34,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:34,212 INFO L93 Difference]: Finished difference Result 54240 states and 114632 transitions. [2022-04-18 19:06:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:06:34,212 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:34,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:34,311 INFO L225 Difference]: With dead ends: 54240 [2022-04-18 19:06:34,311 INFO L226 Difference]: Without dead ends: 54240 [2022-04-18 19:06:34,312 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:06:34,312 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 642 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:34,312 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [642 Valid, 448 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:06:34,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54240 states. [2022-04-18 19:06:34,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54240 to 33865. [2022-04-18 19:06:34,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33865 states, 33822 states have (on average 2.1601620247176396) internal successors, (73061), 33864 states have internal predecessors, (73061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:34,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33865 states to 33865 states and 73061 transitions. [2022-04-18 19:06:34,924 INFO L78 Accepts]: Start accepts. Automaton has 33865 states and 73061 transitions. Word has length 31 [2022-04-18 19:06:34,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:34,924 INFO L478 AbstractCegarLoop]: Abstraction has 33865 states and 73061 transitions. [2022-04-18 19:06:34,924 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 33865 states and 73061 transitions. [2022-04-18 19:06:34,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:34,930 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:34,930 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:34,930 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-04-18 19:06:34,930 INFO L403 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:34,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash -648551899, now seen corresponding path program 31 times [2022-04-18 19:06:34,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:34,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788140478] [2022-04-18 19:06:34,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:34,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:35,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:35,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788140478] [2022-04-18 19:06:35,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788140478] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:35,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:35,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:06:35,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217548352] [2022-04-18 19:06:35,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:35,877 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:06:35,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:35,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:06:35,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:06:35,877 INFO L87 Difference]: Start difference. First operand 33865 states and 73061 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:37,396 INFO L93 Difference]: Finished difference Result 50241 states and 106200 transitions. [2022-04-18 19:06:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:06:37,396 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:37,604 INFO L225 Difference]: With dead ends: 50241 [2022-04-18 19:06:37,604 INFO L226 Difference]: Without dead ends: 50241 [2022-04-18 19:06:37,604 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:06:37,604 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 720 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 2182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:37,604 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 438 Invalid, 2182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:06:37,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50241 states. [2022-04-18 19:06:38,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50241 to 33122. [2022-04-18 19:06:38,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33122 states, 33079 states have (on average 2.158922579279906) internal successors, (71415), 33121 states have internal predecessors, (71415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:38,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33122 states to 33122 states and 71415 transitions. [2022-04-18 19:06:38,201 INFO L78 Accepts]: Start accepts. Automaton has 33122 states and 71415 transitions. Word has length 31 [2022-04-18 19:06:38,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:38,201 INFO L478 AbstractCegarLoop]: Abstraction has 33122 states and 71415 transitions. [2022-04-18 19:06:38,201 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:38,201 INFO L276 IsEmpty]: Start isEmpty. Operand 33122 states and 71415 transitions. [2022-04-18 19:06:38,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:38,207 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:38,207 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:38,207 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-04-18 19:06:38,207 INFO L403 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:38,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:38,208 INFO L85 PathProgramCache]: Analyzing trace with hash 775860197, now seen corresponding path program 32 times [2022-04-18 19:06:38,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:38,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478224975] [2022-04-18 19:06:38,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:38,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:39,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:39,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:39,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478224975] [2022-04-18 19:06:39,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478224975] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:39,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:39,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:06:39,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457474646] [2022-04-18 19:06:39,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:39,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:06:39,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:39,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:06:39,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:06:39,553 INFO L87 Difference]: Start difference. First operand 33122 states and 71415 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:41,314 INFO L93 Difference]: Finished difference Result 55659 states and 117491 transitions. [2022-04-18 19:06:41,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:06:41,314 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:41,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:41,446 INFO L225 Difference]: With dead ends: 55659 [2022-04-18 19:06:41,447 INFO L226 Difference]: Without dead ends: 55659 [2022-04-18 19:06:41,447 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:06:41,447 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 740 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:41,447 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 430 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:06:41,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55659 states. [2022-04-18 19:06:42,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55659 to 34198. [2022-04-18 19:06:42,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34198 states, 34155 states have (on average 2.15836627140975) internal successors, (73719), 34197 states have internal predecessors, (73719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:42,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34198 states to 34198 states and 73719 transitions. [2022-04-18 19:06:42,225 INFO L78 Accepts]: Start accepts. Automaton has 34198 states and 73719 transitions. Word has length 31 [2022-04-18 19:06:42,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:42,225 INFO L478 AbstractCegarLoop]: Abstraction has 34198 states and 73719 transitions. [2022-04-18 19:06:42,225 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:42,225 INFO L276 IsEmpty]: Start isEmpty. Operand 34198 states and 73719 transitions. [2022-04-18 19:06:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:42,232 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:42,232 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:42,232 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-04-18 19:06:42,232 INFO L403 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:42,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1633036507, now seen corresponding path program 33 times [2022-04-18 19:06:42,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:42,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521767321] [2022-04-18 19:06:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:42,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:43,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:43,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521767321] [2022-04-18 19:06:43,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521767321] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:43,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:43,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:06:43,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088433446] [2022-04-18 19:06:43,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:43,356 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:06:43,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:43,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:06:43,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:06:43,357 INFO L87 Difference]: Start difference. First operand 34198 states and 73719 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:45,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:45,236 INFO L93 Difference]: Finished difference Result 53938 states and 113775 transitions. [2022-04-18 19:06:45,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:06:45,236 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:45,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:45,343 INFO L225 Difference]: With dead ends: 53938 [2022-04-18 19:06:45,344 INFO L226 Difference]: Without dead ends: 53938 [2022-04-18 19:06:45,344 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:06:45,344 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 719 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 2587 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 2587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:45,344 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 439 Invalid, 2872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 2587 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:06:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53938 states. [2022-04-18 19:06:45,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53938 to 34084. [2022-04-18 19:06:45,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34084 states, 34041 states have (on average 2.1588966246585) internal successors, (73491), 34083 states have internal predecessors, (73491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:46,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34084 states to 34084 states and 73491 transitions. [2022-04-18 19:06:46,063 INFO L78 Accepts]: Start accepts. Automaton has 34084 states and 73491 transitions. Word has length 31 [2022-04-18 19:06:46,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:46,063 INFO L478 AbstractCegarLoop]: Abstraction has 34084 states and 73491 transitions. [2022-04-18 19:06:46,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:46,064 INFO L276 IsEmpty]: Start isEmpty. Operand 34084 states and 73491 transitions. [2022-04-18 19:06:46,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:46,070 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:46,070 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:46,070 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-04-18 19:06:46,070 INFO L403 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1207077317, now seen corresponding path program 34 times [2022-04-18 19:06:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:46,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761385617] [2022-04-18 19:06:46,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:46,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:46,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:46,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761385617] [2022-04-18 19:06:46,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761385617] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:46,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:46,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:06:46,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819007055] [2022-04-18 19:06:46,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:46,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:06:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:06:46,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:06:46,863 INFO L87 Difference]: Start difference. First operand 34084 states and 73491 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:48,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:48,549 INFO L93 Difference]: Finished difference Result 51572 states and 108895 transitions. [2022-04-18 19:06:48,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:06:48,550 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:48,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:48,645 INFO L225 Difference]: With dead ends: 51572 [2022-04-18 19:06:48,645 INFO L226 Difference]: Without dead ends: 51572 [2022-04-18 19:06:48,646 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:06:48,646 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 689 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:48,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 435 Invalid, 2467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:06:48,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51572 states. [2022-04-18 19:06:49,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51572 to 33178. [2022-04-18 19:06:49,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33178 states, 33135 states have (on average 2.158291836426739) internal successors, (71515), 33177 states have internal predecessors, (71515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33178 states to 33178 states and 71515 transitions. [2022-04-18 19:06:49,242 INFO L78 Accepts]: Start accepts. Automaton has 33178 states and 71515 transitions. Word has length 31 [2022-04-18 19:06:49,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:49,242 INFO L478 AbstractCegarLoop]: Abstraction has 33178 states and 71515 transitions. [2022-04-18 19:06:49,242 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 33178 states and 71515 transitions. [2022-04-18 19:06:49,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:49,247 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:49,247 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:49,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-04-18 19:06:49,247 INFO L403 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:49,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:49,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1030466009, now seen corresponding path program 35 times [2022-04-18 19:06:49,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:49,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629579210] [2022-04-18 19:06:49,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:49,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:50,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:50,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629579210] [2022-04-18 19:06:50,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629579210] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:50,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:50,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:06:50,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344533889] [2022-04-18 19:06:50,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:50,637 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:06:50,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:06:50,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:06:50,637 INFO L87 Difference]: Start difference. First operand 33178 states and 71515 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:52,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:52,342 INFO L93 Difference]: Finished difference Result 58107 states and 123161 transitions. [2022-04-18 19:06:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:06:52,343 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:52,454 INFO L225 Difference]: With dead ends: 58107 [2022-04-18 19:06:52,454 INFO L226 Difference]: Without dead ends: 58107 [2022-04-18 19:06:52,454 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:06:52,454 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 849 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1799 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:52,454 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [849 Valid, 463 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1799 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:06:52,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58107 states. [2022-04-18 19:06:53,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58107 to 35144. [2022-04-18 19:06:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35144 states, 35101 states have (on average 2.160137887809464) internal successors, (75823), 35143 states have internal predecessors, (75823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:53,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35144 states to 35144 states and 75823 transitions. [2022-04-18 19:06:53,181 INFO L78 Accepts]: Start accepts. Automaton has 35144 states and 75823 transitions. Word has length 31 [2022-04-18 19:06:53,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:53,181 INFO L478 AbstractCegarLoop]: Abstraction has 35144 states and 75823 transitions. [2022-04-18 19:06:53,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:53,182 INFO L276 IsEmpty]: Start isEmpty. Operand 35144 states and 75823 transitions. [2022-04-18 19:06:53,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:53,187 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:53,187 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:53,187 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-04-18 19:06:53,187 INFO L403 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:53,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:53,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1887642319, now seen corresponding path program 36 times [2022-04-18 19:06:53,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:53,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667221370] [2022-04-18 19:06:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:53,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:54,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:54,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667221370] [2022-04-18 19:06:54,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667221370] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:54,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:54,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:06:54,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705084172] [2022-04-18 19:06:54,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:54,205 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:06:54,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:54,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:06:54,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:06:54,206 INFO L87 Difference]: Start difference. First operand 35144 states and 75823 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:56,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:56,051 INFO L93 Difference]: Finished difference Result 56333 states and 119336 transitions. [2022-04-18 19:06:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:06:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:56,175 INFO L225 Difference]: With dead ends: 56333 [2022-04-18 19:06:56,175 INFO L226 Difference]: Without dead ends: 56333 [2022-04-18 19:06:56,175 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:06:56,176 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 728 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:56,176 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 468 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:06:56,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56333 states. [2022-04-18 19:06:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56333 to 35007. [2022-04-18 19:06:56,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35007 states, 34964 states have (on average 2.1604793501887656) internal successors, (75539), 35006 states have internal predecessors, (75539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35007 states to 35007 states and 75539 transitions. [2022-04-18 19:06:56,956 INFO L78 Accepts]: Start accepts. Automaton has 35007 states and 75539 transitions. Word has length 31 [2022-04-18 19:06:56,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:56,956 INFO L478 AbstractCegarLoop]: Abstraction has 35007 states and 75539 transitions. [2022-04-18 19:06:56,956 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:56,956 INFO L276 IsEmpty]: Start isEmpty. Operand 35007 states and 75539 transitions. [2022-04-18 19:06:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:06:56,962 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:56,962 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:06:56,962 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-04-18 19:06:56,962 INFO L403 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:06:56,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1461683129, now seen corresponding path program 37 times [2022-04-18 19:06:56,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:56,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883796267] [2022-04-18 19:06:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:56,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:57,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:57,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883796267] [2022-04-18 19:06:57,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883796267] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:57,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:57,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:06:57,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580728893] [2022-04-18 19:06:57,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:57,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:06:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:06:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:06:57,866 INFO L87 Difference]: Start difference. First operand 35007 states and 75539 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:59,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:59,569 INFO L93 Difference]: Finished difference Result 57377 states and 121441 transitions. [2022-04-18 19:06:59,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:06:59,570 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:06:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:59,685 INFO L225 Difference]: With dead ends: 57377 [2022-04-18 19:06:59,685 INFO L226 Difference]: Without dead ends: 57377 [2022-04-18 19:06:59,685 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:06:59,685 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 818 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:59,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [818 Valid, 469 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:06:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57377 states. [2022-04-18 19:07:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57377 to 34870. [2022-04-18 19:07:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34870 states, 34827 states have (on average 2.160823499009389) internal successors, (75255), 34869 states have internal predecessors, (75255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:00,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34870 states to 34870 states and 75255 transitions. [2022-04-18 19:07:00,449 INFO L78 Accepts]: Start accepts. Automaton has 34870 states and 75255 transitions. Word has length 31 [2022-04-18 19:07:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:00,450 INFO L478 AbstractCegarLoop]: Abstraction has 34870 states and 75255 transitions. [2022-04-18 19:07:00,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 34870 states and 75255 transitions. [2022-04-18 19:07:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:00,455 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:00,455 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:00,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-04-18 19:07:00,456 INFO L403 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:00,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:00,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1689994225, now seen corresponding path program 38 times [2022-04-18 19:07:00,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:00,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381808313] [2022-04-18 19:07:00,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:00,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:01,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:01,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:01,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381808313] [2022-04-18 19:07:01,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381808313] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:01,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:01,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:07:01,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031688006] [2022-04-18 19:07:01,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:01,012 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:07:01,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:01,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:07:01,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:07:01,012 INFO L87 Difference]: Start difference. First operand 34870 states and 75255 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:03,000 INFO L93 Difference]: Finished difference Result 40170 states and 86138 transitions. [2022-04-18 19:07:03,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:07:03,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:03,088 INFO L225 Difference]: With dead ends: 40170 [2022-04-18 19:07:03,088 INFO L226 Difference]: Without dead ends: 40170 [2022-04-18 19:07:03,088 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=247, Invalid=623, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:07:03,089 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 417 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 2697 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 2697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:03,089 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 444 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 2697 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:07:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40170 states. [2022-04-18 19:07:03,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40170 to 35501. [2022-04-18 19:07:03,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35501 states, 35458 states have (on average 2.159766484291274) internal successors, (76581), 35500 states have internal predecessors, (76581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35501 states to 35501 states and 76581 transitions. [2022-04-18 19:07:03,732 INFO L78 Accepts]: Start accepts. Automaton has 35501 states and 76581 transitions. Word has length 31 [2022-04-18 19:07:03,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:03,732 INFO L478 AbstractCegarLoop]: Abstraction has 35501 states and 76581 transitions. [2022-04-18 19:07:03,732 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand 35501 states and 76581 transitions. [2022-04-18 19:07:03,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:03,737 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:03,737 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:03,737 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-04-18 19:07:03,737 INFO L403 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:03,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:03,738 INFO L85 PathProgramCache]: Analyzing trace with hash -95648653, now seen corresponding path program 39 times [2022-04-18 19:07:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:03,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963097557] [2022-04-18 19:07:03,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:03,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:03,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:03,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963097557] [2022-04-18 19:07:03,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963097557] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:03,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:03,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:07:03,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573134194] [2022-04-18 19:07:03,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:03,977 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:07:03,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:03,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:07:03,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:07:03,978 INFO L87 Difference]: Start difference. First operand 35501 states and 76581 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:05,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:05,417 INFO L93 Difference]: Finished difference Result 55213 states and 117061 transitions. [2022-04-18 19:07:05,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:07:05,418 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:05,525 INFO L225 Difference]: With dead ends: 55213 [2022-04-18 19:07:05,526 INFO L226 Difference]: Without dead ends: 55213 [2022-04-18 19:07:05,526 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2022-04-18 19:07:05,527 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 770 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:05,527 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [770 Valid, 464 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:07:05,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55213 states. [2022-04-18 19:07:06,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55213 to 33122. [2022-04-18 19:07:06,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33122 states, 33079 states have (on average 2.163608331569878) internal successors, (71570), 33121 states have internal predecessors, (71570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:06,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33122 states to 33122 states and 71570 transitions. [2022-04-18 19:07:06,421 INFO L78 Accepts]: Start accepts. Automaton has 33122 states and 71570 transitions. Word has length 31 [2022-04-18 19:07:06,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:06,422 INFO L478 AbstractCegarLoop]: Abstraction has 33122 states and 71570 transitions. [2022-04-18 19:07:06,422 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 33122 states and 71570 transitions. [2022-04-18 19:07:06,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:06,428 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:06,428 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:06,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-04-18 19:07:06,428 INFO L403 AbstractCegarLoop]: === Iteration 129 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:06,429 INFO L85 PathProgramCache]: Analyzing trace with hash -139661776, now seen corresponding path program 2 times [2022-04-18 19:07:06,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:06,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243003797] [2022-04-18 19:07:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:06,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:06,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:06,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243003797] [2022-04-18 19:07:06,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243003797] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:06,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:06,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:07:06,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100519569] [2022-04-18 19:07:06,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:06,627 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:07:06,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:06,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:07:06,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:07:06,628 INFO L87 Difference]: Start difference. First operand 33122 states and 71570 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:08,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:08,127 INFO L93 Difference]: Finished difference Result 46594 states and 99426 transitions. [2022-04-18 19:07:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:07:08,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:08,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:08,207 INFO L225 Difference]: With dead ends: 46594 [2022-04-18 19:07:08,207 INFO L226 Difference]: Without dead ends: 46594 [2022-04-18 19:07:08,208 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:07:08,208 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 653 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:08,208 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 452 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:07:08,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46594 states. [2022-04-18 19:07:08,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46594 to 26120. [2022-04-18 19:07:08,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26120 states, 26077 states have (on average 2.1588372895655175) internal successors, (56296), 26119 states have internal predecessors, (56296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:08,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26120 states to 26120 states and 56296 transitions. [2022-04-18 19:07:08,746 INFO L78 Accepts]: Start accepts. Automaton has 26120 states and 56296 transitions. Word has length 31 [2022-04-18 19:07:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:08,746 INFO L478 AbstractCegarLoop]: Abstraction has 26120 states and 56296 transitions. [2022-04-18 19:07:08,746 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 26120 states and 56296 transitions. [2022-04-18 19:07:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:08,751 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:08,751 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:08,751 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-04-18 19:07:08,751 INFO L403 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:08,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1184676329, now seen corresponding path program 50 times [2022-04-18 19:07:08,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:08,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330204372] [2022-04-18 19:07:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:08,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:09,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:09,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330204372] [2022-04-18 19:07:09,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330204372] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:09,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:09,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:07:09,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701491410] [2022-04-18 19:07:09,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:09,426 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:07:09,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:09,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:07:09,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:07:09,426 INFO L87 Difference]: Start difference. First operand 26120 states and 56296 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:12,513 INFO L93 Difference]: Finished difference Result 30372 states and 65027 transitions. [2022-04-18 19:07:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:07:12,513 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:12,563 INFO L225 Difference]: With dead ends: 30372 [2022-04-18 19:07:12,563 INFO L226 Difference]: Without dead ends: 30372 [2022-04-18 19:07:12,564 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:07:12,564 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 666 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 4852 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 4963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 4852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:12,564 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [666 Valid, 903 Invalid, 4963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 4852 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:07:12,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30372 states. [2022-04-18 19:07:12,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30372 to 27356. [2022-04-18 19:07:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27356 states, 27313 states have (on average 2.1599970709918352) internal successors, (58996), 27355 states have internal predecessors, (58996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:12,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27356 states to 27356 states and 58996 transitions. [2022-04-18 19:07:12,980 INFO L78 Accepts]: Start accepts. Automaton has 27356 states and 58996 transitions. Word has length 31 [2022-04-18 19:07:12,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:12,980 INFO L478 AbstractCegarLoop]: Abstraction has 27356 states and 58996 transitions. [2022-04-18 19:07:12,980 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:12,980 INFO L276 IsEmpty]: Start isEmpty. Operand 27356 states and 58996 transitions. [2022-04-18 19:07:13,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:13,045 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:13,045 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:13,045 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-04-18 19:07:13,045 INFO L403 AbstractCegarLoop]: === Iteration 131 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:13,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1732127012, now seen corresponding path program 31 times [2022-04-18 19:07:13,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:13,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535541934] [2022-04-18 19:07:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:13,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:13,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:13,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535541934] [2022-04-18 19:07:13,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535541934] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:13,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:13,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:07:13,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130104043] [2022-04-18 19:07:13,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:13,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:07:13,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:13,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:07:13,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:07:13,472 INFO L87 Difference]: Start difference. First operand 27356 states and 58996 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:16,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:16,440 INFO L93 Difference]: Finished difference Result 36860 states and 78610 transitions. [2022-04-18 19:07:16,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:07:16,440 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:16,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:16,502 INFO L225 Difference]: With dead ends: 36860 [2022-04-18 19:07:16,502 INFO L226 Difference]: Without dead ends: 36860 [2022-04-18 19:07:16,502 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=260, Invalid=732, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:07:16,502 INFO L913 BasicCegarLoop]: 100 mSDtfsCounter, 417 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 3491 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 3909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 3491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:16,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 441 Invalid, 3909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 3491 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:07:16,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36860 states. [2022-04-18 19:07:16,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36860 to 27098. [2022-04-18 19:07:16,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27098 states, 27055 states have (on average 2.1573091849935317) internal successors, (58366), 27097 states have internal predecessors, (58366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27098 states to 27098 states and 58366 transitions. [2022-04-18 19:07:16,944 INFO L78 Accepts]: Start accepts. Automaton has 27098 states and 58366 transitions. Word has length 31 [2022-04-18 19:07:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:16,945 INFO L478 AbstractCegarLoop]: Abstraction has 27098 states and 58366 transitions. [2022-04-18 19:07:16,945 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 27098 states and 58366 transitions. [2022-04-18 19:07:16,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:16,949 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:16,949 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:16,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-04-18 19:07:16,949 INFO L403 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:16,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:16,950 INFO L85 PathProgramCache]: Analyzing trace with hash 318508337, now seen corresponding path program 51 times [2022-04-18 19:07:16,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:16,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402967421] [2022-04-18 19:07:16,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:16,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:17,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:17,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:17,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402967421] [2022-04-18 19:07:17,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402967421] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:17,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:17,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:07:17,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729553619] [2022-04-18 19:07:17,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:17,619 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:07:17,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:17,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:07:17,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:07:17,619 INFO L87 Difference]: Start difference. First operand 27098 states and 58366 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:20,613 INFO L93 Difference]: Finished difference Result 29082 states and 62325 transitions. [2022-04-18 19:07:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:07:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:20,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:20,660 INFO L225 Difference]: With dead ends: 29082 [2022-04-18 19:07:20,660 INFO L226 Difference]: Without dead ends: 29082 [2022-04-18 19:07:20,661 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:07:20,661 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 672 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 4445 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 4555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:20,661 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [672 Valid, 808 Invalid, 4555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4445 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:07:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29082 states. [2022-04-18 19:07:20,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29082 to 27091. [2022-04-18 19:07:21,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27091 states, 27048 states have (on average 2.1571280686187517) internal successors, (58346), 27090 states have internal predecessors, (58346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27091 states to 27091 states and 58346 transitions. [2022-04-18 19:07:21,075 INFO L78 Accepts]: Start accepts. Automaton has 27091 states and 58346 transitions. Word has length 31 [2022-04-18 19:07:21,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:21,075 INFO L478 AbstractCegarLoop]: Abstraction has 27091 states and 58346 transitions. [2022-04-18 19:07:21,075 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 27091 states and 58346 transitions. [2022-04-18 19:07:21,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:21,079 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:21,079 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:21,079 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-04-18 19:07:21,079 INFO L403 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:21,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash -585768879, now seen corresponding path program 40 times [2022-04-18 19:07:21,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:21,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858122129] [2022-04-18 19:07:21,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:21,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:22,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:22,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858122129] [2022-04-18 19:07:22,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858122129] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:22,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:22,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:07:22,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505819991] [2022-04-18 19:07:22,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:22,400 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:07:22,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:22,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:07:22,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:07:22,400 INFO L87 Difference]: Start difference. First operand 27091 states and 58346 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:23,898 INFO L93 Difference]: Finished difference Result 38786 states and 82017 transitions. [2022-04-18 19:07:23,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:07:23,899 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:23,963 INFO L225 Difference]: With dead ends: 38786 [2022-04-18 19:07:23,963 INFO L226 Difference]: Without dead ends: 38786 [2022-04-18 19:07:23,963 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:07:23,963 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 648 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:23,963 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 482 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:07:24,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38786 states. [2022-04-18 19:07:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38786 to 27211. [2022-04-18 19:07:24,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27211 states, 27168 states have (on average 2.1543359835100118) internal successors, (58529), 27210 states have internal predecessors, (58529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:24,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27211 states to 27211 states and 58529 transitions. [2022-04-18 19:07:24,405 INFO L78 Accepts]: Start accepts. Automaton has 27211 states and 58529 transitions. Word has length 31 [2022-04-18 19:07:24,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:24,405 INFO L478 AbstractCegarLoop]: Abstraction has 27211 states and 58529 transitions. [2022-04-18 19:07:24,405 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 27211 states and 58529 transitions. [2022-04-18 19:07:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:24,409 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:24,409 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:24,409 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-04-18 19:07:24,410 INFO L403 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:24,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:24,410 INFO L85 PathProgramCache]: Analyzing trace with hash 271407431, now seen corresponding path program 41 times [2022-04-18 19:07:24,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:24,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918044054] [2022-04-18 19:07:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:24,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:25,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:25,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918044054] [2022-04-18 19:07:25,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918044054] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:25,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:25,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:07:25,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480660054] [2022-04-18 19:07:25,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:25,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:07:25,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:25,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:07:25,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:07:25,512 INFO L87 Difference]: Start difference. First operand 27211 states and 58529 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:26,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:26,903 INFO L93 Difference]: Finished difference Result 38978 states and 82393 transitions. [2022-04-18 19:07:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:07:26,903 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:26,980 INFO L225 Difference]: With dead ends: 38978 [2022-04-18 19:07:26,981 INFO L226 Difference]: Without dead ends: 38978 [2022-04-18 19:07:26,981 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:07:26,981 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 686 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 2197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:26,981 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [686 Valid, 483 Invalid, 2197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:07:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38978 states. [2022-04-18 19:07:27,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38978 to 27199. [2022-04-18 19:07:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27199 states, 27156 states have (on average 2.154293710413905) internal successors, (58502), 27198 states have internal predecessors, (58502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27199 states to 27199 states and 58502 transitions. [2022-04-18 19:07:27,440 INFO L78 Accepts]: Start accepts. Automaton has 27199 states and 58502 transitions. Word has length 31 [2022-04-18 19:07:27,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:27,440 INFO L478 AbstractCegarLoop]: Abstraction has 27199 states and 58502 transitions. [2022-04-18 19:07:27,440 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:27,441 INFO L276 IsEmpty]: Start isEmpty. Operand 27199 states and 58502 transitions. [2022-04-18 19:07:27,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:27,445 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:27,445 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:27,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-04-18 19:07:27,445 INFO L403 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash -154551759, now seen corresponding path program 42 times [2022-04-18 19:07:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:27,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514835823] [2022-04-18 19:07:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:27,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:28,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:28,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514835823] [2022-04-18 19:07:28,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514835823] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:28,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:28,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:07:28,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912292858] [2022-04-18 19:07:28,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:28,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:07:28,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:28,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:07:28,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:07:28,313 INFO L87 Difference]: Start difference. First operand 27199 states and 58502 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:30,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:30,259 INFO L93 Difference]: Finished difference Result 40606 states and 87025 transitions. [2022-04-18 19:07:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:07:30,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:30,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:30,342 INFO L225 Difference]: With dead ends: 40606 [2022-04-18 19:07:30,342 INFO L226 Difference]: Without dead ends: 40606 [2022-04-18 19:07:30,342 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=233, Invalid=637, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:07:30,343 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 448 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 2744 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 2744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:30,343 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 525 Invalid, 3029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 2744 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:07:30,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40606 states. [2022-04-18 19:07:30,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40606 to 27309. [2022-04-18 19:07:30,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27309 states, 27266 states have (on average 2.154037996039023) internal successors, (58732), 27308 states have internal predecessors, (58732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:30,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27309 states to 27309 states and 58732 transitions. [2022-04-18 19:07:30,950 INFO L78 Accepts]: Start accepts. Automaton has 27309 states and 58732 transitions. Word has length 31 [2022-04-18 19:07:30,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:30,950 INFO L478 AbstractCegarLoop]: Abstraction has 27309 states and 58732 transitions. [2022-04-18 19:07:30,950 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:30,950 INFO L276 IsEmpty]: Start isEmpty. Operand 27309 states and 58732 transitions. [2022-04-18 19:07:30,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:30,955 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:30,955 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:30,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-04-18 19:07:30,955 INFO L403 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:30,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:30,956 INFO L85 PathProgramCache]: Analyzing trace with hash 988738183, now seen corresponding path program 43 times [2022-04-18 19:07:30,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:30,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831335991] [2022-04-18 19:07:30,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:30,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:31,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:31,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831335991] [2022-04-18 19:07:31,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831335991] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:31,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:31,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:07:31,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382990906] [2022-04-18 19:07:31,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:31,557 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:07:31,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:07:31,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:07:31,558 INFO L87 Difference]: Start difference. First operand 27309 states and 58732 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:33,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:33,496 INFO L93 Difference]: Finished difference Result 40990 states and 87801 transitions. [2022-04-18 19:07:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:07:33,496 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:33,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:33,562 INFO L225 Difference]: With dead ends: 40990 [2022-04-18 19:07:33,562 INFO L226 Difference]: Without dead ends: 40990 [2022-04-18 19:07:33,563 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:07:33,563 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 494 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 2484 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:33,563 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [494 Valid, 613 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2484 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:07:33,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40990 states. [2022-04-18 19:07:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40990 to 27341. [2022-04-18 19:07:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27341 states, 27298 states have (on average 2.1540039563337974) internal successors, (58800), 27340 states have internal predecessors, (58800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27341 states to 27341 states and 58800 transitions. [2022-04-18 19:07:34,008 INFO L78 Accepts]: Start accepts. Automaton has 27341 states and 58800 transitions. Word has length 31 [2022-04-18 19:07:34,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:34,008 INFO L478 AbstractCegarLoop]: Abstraction has 27341 states and 58800 transitions. [2022-04-18 19:07:34,008 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:34,008 INFO L276 IsEmpty]: Start isEmpty. Operand 27341 states and 58800 transitions. [2022-04-18 19:07:34,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:34,012 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:34,012 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:34,012 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-04-18 19:07:34,012 INFO L403 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:34,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1711883541, now seen corresponding path program 44 times [2022-04-18 19:07:34,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:34,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656522075] [2022-04-18 19:07:34,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:34,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:34,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:34,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:34,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656522075] [2022-04-18 19:07:34,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656522075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:34,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:34,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:07:34,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260439120] [2022-04-18 19:07:34,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:34,246 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:07:34,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:34,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:07:34,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:07:34,246 INFO L87 Difference]: Start difference. First operand 27341 states and 58800 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:35,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:35,551 INFO L93 Difference]: Finished difference Result 36842 states and 78106 transitions. [2022-04-18 19:07:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:07:35,551 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:35,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:35,610 INFO L225 Difference]: With dead ends: 36842 [2022-04-18 19:07:35,610 INFO L226 Difference]: Without dead ends: 36842 [2022-04-18 19:07:35,610 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:07:35,610 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 645 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:35,610 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 485 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:07:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36842 states. [2022-04-18 19:07:36,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36842 to 26598. [2022-04-18 19:07:36,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26598 states, 26555 states have (on average 2.1556015816230465) internal successors, (57242), 26597 states have internal predecessors, (57242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:36,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26598 states to 26598 states and 57242 transitions. [2022-04-18 19:07:36,155 INFO L78 Accepts]: Start accepts. Automaton has 26598 states and 57242 transitions. Word has length 31 [2022-04-18 19:07:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:36,155 INFO L478 AbstractCegarLoop]: Abstraction has 26598 states and 57242 transitions. [2022-04-18 19:07:36,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:36,155 INFO L276 IsEmpty]: Start isEmpty. Operand 26598 states and 57242 transitions. [2022-04-18 19:07:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:36,159 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:36,159 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:36,159 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-04-18 19:07:36,159 INFO L403 AbstractCegarLoop]: === Iteration 138 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:36,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:36,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1755896664, now seen corresponding path program 3 times [2022-04-18 19:07:36,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:36,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419859454] [2022-04-18 19:07:36,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:36,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:36,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:36,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419859454] [2022-04-18 19:07:36,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419859454] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:36,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:36,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:07:36,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226017175] [2022-04-18 19:07:36,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:36,346 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:07:36,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:36,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:07:36,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:07:36,347 INFO L87 Difference]: Start difference. First operand 26598 states and 57242 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:37,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:37,468 INFO L93 Difference]: Finished difference Result 34739 states and 73888 transitions. [2022-04-18 19:07:37,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:07:37,469 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:37,524 INFO L225 Difference]: With dead ends: 34739 [2022-04-18 19:07:37,524 INFO L226 Difference]: Without dead ends: 34739 [2022-04-18 19:07:37,524 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:07:37,524 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 582 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:37,524 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 475 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:07:37,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34739 states. [2022-04-18 19:07:37,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34739 to 24313. [2022-04-18 19:07:37,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24313 states, 24270 states have (on average 2.15389369592089) internal successors, (52275), 24312 states have internal predecessors, (52275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:37,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24313 states to 24313 states and 52275 transitions. [2022-04-18 19:07:37,997 INFO L78 Accepts]: Start accepts. Automaton has 24313 states and 52275 transitions. Word has length 31 [2022-04-18 19:07:37,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:37,997 INFO L478 AbstractCegarLoop]: Abstraction has 24313 states and 52275 transitions. [2022-04-18 19:07:37,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 24313 states and 52275 transitions. [2022-04-18 19:07:38,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:38,002 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:38,002 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:38,002 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-04-18 19:07:38,002 INFO L403 AbstractCegarLoop]: === Iteration 139 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:38,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:38,003 INFO L85 PathProgramCache]: Analyzing trace with hash 405916326, now seen corresponding path program 4 times [2022-04-18 19:07:38,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:38,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386795871] [2022-04-18 19:07:38,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:38,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:38,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:38,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386795871] [2022-04-18 19:07:38,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386795871] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:38,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:38,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:07:38,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627649353] [2022-04-18 19:07:38,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:38,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:07:38,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:38,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:07:38,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:07:38,181 INFO L87 Difference]: Start difference. First operand 24313 states and 52275 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:39,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:39,260 INFO L93 Difference]: Finished difference Result 26638 states and 56664 transitions. [2022-04-18 19:07:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:07:39,260 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:39,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:39,305 INFO L225 Difference]: With dead ends: 26638 [2022-04-18 19:07:39,305 INFO L226 Difference]: Without dead ends: 26638 [2022-04-18 19:07:39,305 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:07:39,305 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 541 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:39,306 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [541 Valid, 431 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 19:07:39,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26638 states. [2022-04-18 19:07:39,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26638 to 24311. [2022-04-18 19:07:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24311 states, 24268 states have (on average 2.1539063787703974) internal successors, (52271), 24310 states have internal predecessors, (52271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:39,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24311 states to 24311 states and 52271 transitions. [2022-04-18 19:07:39,702 INFO L78 Accepts]: Start accepts. Automaton has 24311 states and 52271 transitions. Word has length 31 [2022-04-18 19:07:39,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:39,702 INFO L478 AbstractCegarLoop]: Abstraction has 24311 states and 52271 transitions. [2022-04-18 19:07:39,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:39,703 INFO L276 IsEmpty]: Start isEmpty. Operand 24311 states and 52271 transitions. [2022-04-18 19:07:39,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:39,707 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:39,707 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:39,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-04-18 19:07:39,707 INFO L403 AbstractCegarLoop]: === Iteration 140 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:39,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:39,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1282035590, now seen corresponding path program 5 times [2022-04-18 19:07:39,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:39,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907684512] [2022-04-18 19:07:39,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:39,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:39,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:39,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907684512] [2022-04-18 19:07:39,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907684512] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:39,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:39,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:07:39,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786715525] [2022-04-18 19:07:39,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:39,961 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:07:39,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:07:39,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:07:39,961 INFO L87 Difference]: Start difference. First operand 24311 states and 52271 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:40,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:40,909 INFO L93 Difference]: Finished difference Result 26606 states and 56600 transitions. [2022-04-18 19:07:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:07:40,909 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:40,956 INFO L225 Difference]: With dead ends: 26606 [2022-04-18 19:07:40,956 INFO L226 Difference]: Without dead ends: 26606 [2022-04-18 19:07:40,956 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:07:40,956 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 566 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:40,957 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [566 Valid, 431 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:07:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26606 states. [2022-04-18 19:07:41,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26606 to 24309. [2022-04-18 19:07:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24309 states, 24266 states have (on average 2.1539190637105414) internal successors, (52267), 24308 states have internal predecessors, (52267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24309 states to 24309 states and 52267 transitions. [2022-04-18 19:07:41,307 INFO L78 Accepts]: Start accepts. Automaton has 24309 states and 52267 transitions. Word has length 31 [2022-04-18 19:07:41,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:41,308 INFO L478 AbstractCegarLoop]: Abstraction has 24309 states and 52267 transitions. [2022-04-18 19:07:41,308 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:41,308 INFO L276 IsEmpty]: Start isEmpty. Operand 24309 states and 52267 transitions. [2022-04-18 19:07:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:41,312 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:41,312 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:41,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-04-18 19:07:41,312 INFO L403 AbstractCegarLoop]: === Iteration 141 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:41,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1615097796, now seen corresponding path program 6 times [2022-04-18 19:07:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:41,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928996949] [2022-04-18 19:07:41,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:41,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:41,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:41,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928996949] [2022-04-18 19:07:41,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928996949] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:41,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:41,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:07:41,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308323955] [2022-04-18 19:07:41,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:41,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:07:41,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:41,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:07:41,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:07:41,488 INFO L87 Difference]: Start difference. First operand 24309 states and 52267 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:42,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:42,765 INFO L93 Difference]: Finished difference Result 26552 states and 56492 transitions. [2022-04-18 19:07:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:07:42,765 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:42,810 INFO L225 Difference]: With dead ends: 26552 [2022-04-18 19:07:42,811 INFO L226 Difference]: Without dead ends: 26552 [2022-04-18 19:07:42,811 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2022-04-18 19:07:42,811 INFO L913 BasicCegarLoop]: 171 mSDtfsCounter, 594 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:42,811 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [594 Valid, 460 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:07:42,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26552 states. [2022-04-18 19:07:43,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26552 to 24305. [2022-04-18 19:07:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24305 states, 24262 states have (on average 2.153944439864809) internal successors, (52259), 24304 states have internal predecessors, (52259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24305 states to 24305 states and 52259 transitions. [2022-04-18 19:07:43,165 INFO L78 Accepts]: Start accepts. Automaton has 24305 states and 52259 transitions. Word has length 31 [2022-04-18 19:07:43,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:43,165 INFO L478 AbstractCegarLoop]: Abstraction has 24305 states and 52259 transitions. [2022-04-18 19:07:43,165 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:43,165 INFO L276 IsEmpty]: Start isEmpty. Operand 24305 states and 52259 transitions. [2022-04-18 19:07:43,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:43,170 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:43,170 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:43,170 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-04-18 19:07:43,170 INFO L403 AbstractCegarLoop]: === Iteration 142 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:43,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:43,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1362413486, now seen corresponding path program 32 times [2022-04-18 19:07:43,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:43,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235015074] [2022-04-18 19:07:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:43,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:43,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:43,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:43,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235015074] [2022-04-18 19:07:43,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235015074] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:43,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:43,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:07:43,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102380323] [2022-04-18 19:07:43,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:43,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:07:43,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:43,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:07:43,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:07:43,630 INFO L87 Difference]: Start difference. First operand 24305 states and 52259 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:47,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:47,088 INFO L93 Difference]: Finished difference Result 35886 states and 76287 transitions. [2022-04-18 19:07:47,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:07:47,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:47,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:47,151 INFO L225 Difference]: With dead ends: 35886 [2022-04-18 19:07:47,152 INFO L226 Difference]: Without dead ends: 35886 [2022-04-18 19:07:47,152 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:07:47,152 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 512 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 4087 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 4496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 4087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:47,152 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 571 Invalid, 4496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 4087 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:07:47,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35886 states. [2022-04-18 19:07:47,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35886 to 24747. [2022-04-18 19:07:47,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24747 states, 24704 states have (on average 2.1543879533678756) internal successors, (53222), 24746 states have internal predecessors, (53222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:47,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24747 states to 24747 states and 53222 transitions. [2022-04-18 19:07:47,642 INFO L78 Accepts]: Start accepts. Automaton has 24747 states and 53222 transitions. Word has length 31 [2022-04-18 19:07:47,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:47,642 INFO L478 AbstractCegarLoop]: Abstraction has 24747 states and 53222 transitions. [2022-04-18 19:07:47,642 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 24747 states and 53222 transitions. [2022-04-18 19:07:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:47,647 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:47,647 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:47,647 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-04-18 19:07:47,647 INFO L403 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:47,648 INFO L85 PathProgramCache]: Analyzing trace with hash 688221863, now seen corresponding path program 52 times [2022-04-18 19:07:47,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:47,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258192264] [2022-04-18 19:07:47,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:47,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:48,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:48,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:48,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258192264] [2022-04-18 19:07:48,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258192264] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:48,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:48,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:07:48,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814783786] [2022-04-18 19:07:48,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:48,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:07:48,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:48,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:07:48,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:07:48,168 INFO L87 Difference]: Start difference. First operand 24747 states and 53222 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:51,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:51,408 INFO L93 Difference]: Finished difference Result 27910 states and 59596 transitions. [2022-04-18 19:07:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:07:51,408 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:51,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:51,451 INFO L225 Difference]: With dead ends: 27910 [2022-04-18 19:07:51,451 INFO L226 Difference]: Without dead ends: 27910 [2022-04-18 19:07:51,452 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:07:51,452 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 727 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 4782 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 4866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:51,452 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 1047 Invalid, 4866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4782 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:07:51,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27910 states. [2022-04-18 19:07:51,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27910 to 24776. [2022-04-18 19:07:51,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24776 states, 24733 states have (on average 2.1542473618242832) internal successors, (53281), 24775 states have internal predecessors, (53281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24776 states to 24776 states and 53281 transitions. [2022-04-18 19:07:51,865 INFO L78 Accepts]: Start accepts. Automaton has 24776 states and 53281 transitions. Word has length 31 [2022-04-18 19:07:51,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:51,865 INFO L478 AbstractCegarLoop]: Abstraction has 24776 states and 53281 transitions. [2022-04-18 19:07:51,865 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 24776 states and 53281 transitions. [2022-04-18 19:07:51,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:51,869 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:51,870 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:51,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-04-18 19:07:51,870 INFO L403 AbstractCegarLoop]: === Iteration 144 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:51,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:51,870 INFO L85 PathProgramCache]: Analyzing trace with hash 210558090, now seen corresponding path program 33 times [2022-04-18 19:07:51,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:51,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13421676] [2022-04-18 19:07:51,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:51,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:52,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:52,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13421676] [2022-04-18 19:07:52,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13421676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:52,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:52,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:07:52,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136412626] [2022-04-18 19:07:52,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:52,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:07:52,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:52,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:07:52,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:07:52,810 INFO L87 Difference]: Start difference. First operand 24776 states and 53281 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:55,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:55,756 INFO L93 Difference]: Finished difference Result 29180 states and 62248 transitions. [2022-04-18 19:07:55,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-04-18 19:07:55,757 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:55,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:55,810 INFO L225 Difference]: With dead ends: 29180 [2022-04-18 19:07:55,810 INFO L226 Difference]: Without dead ends: 29180 [2022-04-18 19:07:55,811 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=376, Invalid=1346, Unknown=0, NotChecked=0, Total=1722 [2022-04-18 19:07:55,811 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 564 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 3271 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 3638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:55,811 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [564 Valid, 991 Invalid, 3638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 3271 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:07:55,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29180 states. [2022-04-18 19:07:56,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29180 to 25672. [2022-04-18 19:07:56,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25672 states, 25629 states have (on average 2.1546685395450464) internal successors, (55222), 25671 states have internal predecessors, (55222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25672 states to 25672 states and 55222 transitions. [2022-04-18 19:07:56,210 INFO L78 Accepts]: Start accepts. Automaton has 25672 states and 55222 transitions. Word has length 31 [2022-04-18 19:07:56,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:56,210 INFO L478 AbstractCegarLoop]: Abstraction has 25672 states and 55222 transitions. [2022-04-18 19:07:56,210 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 25672 states and 55222 transitions. [2022-04-18 19:07:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:56,217 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:56,217 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:56,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-04-18 19:07:56,218 INFO L403 AbstractCegarLoop]: === Iteration 145 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:56,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:56,218 INFO L85 PathProgramCache]: Analyzing trace with hash -828392202, now seen corresponding path program 34 times [2022-04-18 19:07:56,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:56,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479936090] [2022-04-18 19:07:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:56,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:56,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:56,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479936090] [2022-04-18 19:07:56,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479936090] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:56,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:56,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:56,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870419517] [2022-04-18 19:07:56,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:56,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:56,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:56,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:56,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:56,870 INFO L87 Difference]: Start difference. First operand 25672 states and 55222 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:59,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:59,412 INFO L93 Difference]: Finished difference Result 30740 states and 65541 transitions. [2022-04-18 19:07:59,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:07:59,412 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:07:59,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:59,462 INFO L225 Difference]: With dead ends: 30740 [2022-04-18 19:07:59,462 INFO L226 Difference]: Without dead ends: 30740 [2022-04-18 19:07:59,462 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=687, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:07:59,463 INFO L913 BasicCegarLoop]: 118 mSDtfsCounter, 506 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 3233 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 3233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:59,463 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 491 Invalid, 3552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 3233 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:07:59,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30740 states. [2022-04-18 19:07:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30740 to 26315. [2022-04-18 19:07:59,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26315 states, 26272 states have (on average 2.157429963459196) internal successors, (56680), 26314 states have internal predecessors, (56680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26315 states to 26315 states and 56680 transitions. [2022-04-18 19:07:59,856 INFO L78 Accepts]: Start accepts. Automaton has 26315 states and 56680 transitions. Word has length 31 [2022-04-18 19:07:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:59,856 INFO L478 AbstractCegarLoop]: Abstraction has 26315 states and 56680 transitions. [2022-04-18 19:07:59,856 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 26315 states and 56680 transitions. [2022-04-18 19:07:59,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:07:59,861 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:59,862 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:07:59,862 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-04-18 19:07:59,862 INFO L403 AbstractCegarLoop]: === Iteration 146 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:07:59,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:59,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1876988594, now seen corresponding path program 35 times [2022-04-18 19:07:59,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:59,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420265389] [2022-04-18 19:07:59,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:59,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:00,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:00,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420265389] [2022-04-18 19:08:00,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420265389] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:00,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:00,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:00,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828745464] [2022-04-18 19:08:00,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:00,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:00,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:00,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:00,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:00,897 INFO L87 Difference]: Start difference. First operand 26315 states and 56680 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:04,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:04,326 INFO L93 Difference]: Finished difference Result 32854 states and 70073 transitions. [2022-04-18 19:08:04,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-04-18 19:08:04,326 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:04,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:04,384 INFO L225 Difference]: With dead ends: 32854 [2022-04-18 19:08:04,384 INFO L226 Difference]: Without dead ends: 32854 [2022-04-18 19:08:04,384 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=438, Invalid=1632, Unknown=0, NotChecked=0, Total=2070 [2022-04-18 19:08:04,384 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 606 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 4255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:04,384 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [606 Valid, 1061 Invalid, 4255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:08:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32854 states. [2022-04-18 19:08:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32854 to 27716. [2022-04-18 19:08:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27716 states, 27673 states have (on average 2.1592527011888847) internal successors, (59753), 27715 states have internal predecessors, (59753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:04,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27716 states to 27716 states and 59753 transitions. [2022-04-18 19:08:04,803 INFO L78 Accepts]: Start accepts. Automaton has 27716 states and 59753 transitions. Word has length 31 [2022-04-18 19:08:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:04,803 INFO L478 AbstractCegarLoop]: Abstraction has 27716 states and 59753 transitions. [2022-04-18 19:08:04,803 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 27716 states and 59753 transitions. [2022-04-18 19:08:04,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:04,808 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:04,808 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:04,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-04-18 19:08:04,809 INFO L403 AbstractCegarLoop]: === Iteration 147 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:04,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:04,809 INFO L85 PathProgramCache]: Analyzing trace with hash -466637518, now seen corresponding path program 36 times [2022-04-18 19:08:04,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:04,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532289446] [2022-04-18 19:08:04,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:04,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:05,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:05,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:05,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532289446] [2022-04-18 19:08:05,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532289446] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:05,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:05,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:05,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568900154] [2022-04-18 19:08:05,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:05,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:05,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:05,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:05,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:05,857 INFO L87 Difference]: Start difference. First operand 27716 states and 59753 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:09,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:09,431 INFO L93 Difference]: Finished difference Result 34170 states and 72975 transitions. [2022-04-18 19:08:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-04-18 19:08:09,432 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:09,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:09,489 INFO L225 Difference]: With dead ends: 34170 [2022-04-18 19:08:09,489 INFO L226 Difference]: Without dead ends: 34170 [2022-04-18 19:08:09,490 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=455, Invalid=1707, Unknown=0, NotChecked=0, Total=2162 [2022-04-18 19:08:09,490 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 641 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 4324 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 4735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 4324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:09,490 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 1048 Invalid, 4735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 4324 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:08:09,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34170 states. [2022-04-18 19:08:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34170 to 29072. [2022-04-18 19:08:09,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29072 states, 29029 states have (on average 2.1609080574597814) internal successors, (62729), 29071 states have internal predecessors, (62729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:09,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29072 states to 29072 states and 62729 transitions. [2022-04-18 19:08:09,941 INFO L78 Accepts]: Start accepts. Automaton has 29072 states and 62729 transitions. Word has length 31 [2022-04-18 19:08:09,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:09,941 INFO L478 AbstractCegarLoop]: Abstraction has 29072 states and 62729 transitions. [2022-04-18 19:08:09,941 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:09,941 INFO L276 IsEmpty]: Start isEmpty. Operand 29072 states and 62729 transitions. [2022-04-18 19:08:09,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:09,946 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:09,947 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:09,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-04-18 19:08:09,947 INFO L403 AbstractCegarLoop]: === Iteration 148 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:09,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:09,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1806245130, now seen corresponding path program 37 times [2022-04-18 19:08:09,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:09,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538319243] [2022-04-18 19:08:09,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:09,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:10,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:10,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538319243] [2022-04-18 19:08:10,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538319243] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:10,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:10,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:10,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747044700] [2022-04-18 19:08:10,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:10,287 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:10,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:10,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:10,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:10,287 INFO L87 Difference]: Start difference. First operand 29072 states and 62729 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:12,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:12,398 INFO L93 Difference]: Finished difference Result 33847 states and 72282 transitions. [2022-04-18 19:08:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:08:12,399 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:12,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:12,457 INFO L225 Difference]: With dead ends: 33847 [2022-04-18 19:08:12,457 INFO L226 Difference]: Without dead ends: 33847 [2022-04-18 19:08:12,457 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:08:12,457 INFO L913 BasicCegarLoop]: 117 mSDtfsCounter, 568 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:12,458 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [568 Valid, 459 Invalid, 3144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:08:12,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33847 states. [2022-04-18 19:08:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33847 to 29345. [2022-04-18 19:08:12,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29345 states, 29302 states have (on average 2.1607057538734558) internal successors, (63313), 29344 states have internal predecessors, (63313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:12,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29345 states to 29345 states and 63313 transitions. [2022-04-18 19:08:12,914 INFO L78 Accepts]: Start accepts. Automaton has 29345 states and 63313 transitions. Word has length 31 [2022-04-18 19:08:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:12,914 INFO L478 AbstractCegarLoop]: Abstraction has 29345 states and 63313 transitions. [2022-04-18 19:08:12,914 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:12,915 INFO L276 IsEmpty]: Start isEmpty. Operand 29345 states and 63313 transitions. [2022-04-18 19:08:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:12,920 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:12,920 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:12,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-04-18 19:08:12,920 INFO L403 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:12,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:12,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1143836647, now seen corresponding path program 53 times [2022-04-18 19:08:12,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:12,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846164773] [2022-04-18 19:08:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:12,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:13,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:13,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846164773] [2022-04-18 19:08:13,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846164773] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:13,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:13,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:13,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861225702] [2022-04-18 19:08:13,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:13,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:13,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:13,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:13,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:13,442 INFO L87 Difference]: Start difference. First operand 29345 states and 63313 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:16,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:16,646 INFO L93 Difference]: Finished difference Result 33717 states and 72147 transitions. [2022-04-18 19:08:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:08:16,646 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:16,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:16,710 INFO L225 Difference]: With dead ends: 33717 [2022-04-18 19:08:16,710 INFO L226 Difference]: Without dead ends: 33717 [2022-04-18 19:08:16,710 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=218, Invalid=774, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:08:16,711 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 678 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 4905 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 4980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:16,711 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [678 Valid, 1094 Invalid, 4980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4905 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:08:16,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33717 states. [2022-04-18 19:08:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33717 to 29611. [2022-04-18 19:08:17,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29611 states, 29568 states have (on average 2.160849567099567) internal successors, (63892), 29610 states have internal predecessors, (63892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29611 states to 29611 states and 63892 transitions. [2022-04-18 19:08:17,180 INFO L78 Accepts]: Start accepts. Automaton has 29611 states and 63892 transitions. Word has length 31 [2022-04-18 19:08:17,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:17,180 INFO L478 AbstractCegarLoop]: Abstraction has 29611 states and 63892 transitions. [2022-04-18 19:08:17,180 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 29611 states and 63892 transitions. [2022-04-18 19:08:17,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:17,185 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:17,185 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:17,185 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-04-18 19:08:17,185 INFO L403 AbstractCegarLoop]: === Iteration 150 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:17,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:17,186 INFO L85 PathProgramCache]: Analyzing trace with hash -778600104, now seen corresponding path program 38 times [2022-04-18 19:08:17,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:17,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324859016] [2022-04-18 19:08:17,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:17,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:17,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:17,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:17,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324859016] [2022-04-18 19:08:17,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324859016] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:17,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:17,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:17,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312245023] [2022-04-18 19:08:17,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:17,714 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:17,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:17,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:17,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:17,715 INFO L87 Difference]: Start difference. First operand 29611 states and 63892 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:21,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:21,487 INFO L93 Difference]: Finished difference Result 38310 states and 81655 transitions. [2022-04-18 19:08:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-04-18 19:08:21,488 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:21,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:21,569 INFO L225 Difference]: With dead ends: 38310 [2022-04-18 19:08:21,569 INFO L226 Difference]: Without dead ends: 38310 [2022-04-18 19:08:21,570 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=619, Invalid=2461, Unknown=0, NotChecked=0, Total=3080 [2022-04-18 19:08:21,570 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 853 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 3761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:21,570 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 1323 Invalid, 3761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:08:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38310 states. [2022-04-18 19:08:22,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38310 to 33742. [2022-04-18 19:08:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33742 states, 33699 states have (on average 2.160182794741684) internal successors, (72796), 33741 states have internal predecessors, (72796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33742 states to 33742 states and 72796 transitions. [2022-04-18 19:08:22,242 INFO L78 Accepts]: Start accepts. Automaton has 33742 states and 72796 transitions. Word has length 31 [2022-04-18 19:08:22,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:22,243 INFO L478 AbstractCegarLoop]: Abstraction has 33742 states and 72796 transitions. [2022-04-18 19:08:22,243 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:22,243 INFO L276 IsEmpty]: Start isEmpty. Operand 33742 states and 72796 transitions. [2022-04-18 19:08:22,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:22,248 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:22,248 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:22,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-04-18 19:08:22,249 INFO L403 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:22,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:22,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1441008587, now seen corresponding path program 54 times [2022-04-18 19:08:22,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:22,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136200403] [2022-04-18 19:08:22,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:22,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:22,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:22,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136200403] [2022-04-18 19:08:22,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136200403] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:22,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:22,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:22,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682531847] [2022-04-18 19:08:22,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:22,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:22,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:22,888 INFO L87 Difference]: Start difference. First operand 33742 states and 72796 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:25,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:25,796 INFO L93 Difference]: Finished difference Result 36598 states and 78341 transitions. [2022-04-18 19:08:25,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:08:25,796 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:25,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:25,858 INFO L225 Difference]: With dead ends: 36598 [2022-04-18 19:08:25,858 INFO L226 Difference]: Without dead ends: 36598 [2022-04-18 19:08:25,859 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=285, Invalid=975, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:08:25,859 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 694 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 3813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:25,859 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [694 Valid, 1123 Invalid, 3813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3749 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:08:25,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36598 states. [2022-04-18 19:08:26,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36598 to 33884. [2022-04-18 19:08:26,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33884 states, 33841 states have (on average 2.1608108507431814) internal successors, (73124), 33883 states have internal predecessors, (73124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33884 states to 33884 states and 73124 transitions. [2022-04-18 19:08:26,502 INFO L78 Accepts]: Start accepts. Automaton has 33884 states and 73124 transitions. Word has length 31 [2022-04-18 19:08:26,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:26,503 INFO L478 AbstractCegarLoop]: Abstraction has 33884 states and 73124 transitions. [2022-04-18 19:08:26,503 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:26,503 INFO L276 IsEmpty]: Start isEmpty. Operand 33884 states and 73124 transitions. [2022-04-18 19:08:26,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:26,508 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:26,508 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:26,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-04-18 19:08:26,509 INFO L403 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:26,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:26,509 INFO L85 PathProgramCache]: Analyzing trace with hash -172654849, now seen corresponding path program 55 times [2022-04-18 19:08:26,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:26,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603983166] [2022-04-18 19:08:26,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:26,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:27,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:27,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603983166] [2022-04-18 19:08:27,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603983166] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:27,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:27,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:27,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576368011] [2022-04-18 19:08:27,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:27,005 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:27,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:27,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:27,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:27,005 INFO L87 Difference]: Start difference. First operand 33884 states and 73124 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:29,664 INFO L93 Difference]: Finished difference Result 35641 states and 76396 transitions. [2022-04-18 19:08:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:08:29,665 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:29,718 INFO L225 Difference]: With dead ends: 35641 [2022-04-18 19:08:29,718 INFO L226 Difference]: Without dead ends: 35641 [2022-04-18 19:08:29,719 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:08:29,719 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 620 mSDsluCounter, 934 mSDsCounter, 0 mSdLazyCounter, 3914 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 3975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:29,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 1044 Invalid, 3975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3914 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:08:29,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35641 states. [2022-04-18 19:08:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35641 to 33890. [2022-04-18 19:08:30,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33890 states, 33847 states have (on average 2.1609596123733272) internal successors, (73142), 33889 states have internal predecessors, (73142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:30,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33890 states to 33890 states and 73142 transitions. [2022-04-18 19:08:30,216 INFO L78 Accepts]: Start accepts. Automaton has 33890 states and 73142 transitions. Word has length 31 [2022-04-18 19:08:30,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:30,216 INFO L478 AbstractCegarLoop]: Abstraction has 33890 states and 73142 transitions. [2022-04-18 19:08:30,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:30,216 INFO L276 IsEmpty]: Start isEmpty. Operand 33890 states and 73142 transitions. [2022-04-18 19:08:30,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:30,222 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:30,222 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:30,222 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-04-18 19:08:30,222 INFO L403 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:30,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash -161266999, now seen corresponding path program 56 times [2022-04-18 19:08:30,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:30,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645129821] [2022-04-18 19:08:30,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:30,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:30,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:30,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:30,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645129821] [2022-04-18 19:08:30,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645129821] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:30,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:30,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:30,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704753040] [2022-04-18 19:08:30,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:30,873 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:30,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:30,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:30,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:30,873 INFO L87 Difference]: Start difference. First operand 33890 states and 73142 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:33,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:33,372 INFO L93 Difference]: Finished difference Result 35650 states and 76412 transitions. [2022-04-18 19:08:33,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:08:33,373 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:33,432 INFO L225 Difference]: With dead ends: 35650 [2022-04-18 19:08:33,433 INFO L226 Difference]: Without dead ends: 35650 [2022-04-18 19:08:33,433 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:08:33,433 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 624 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 3391 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 3464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 3391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:33,433 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 1040 Invalid, 3464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 3391 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:08:33,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35650 states. [2022-04-18 19:08:33,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35650 to 33888. [2022-04-18 19:08:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33888 states, 33845 states have (on average 2.1609100310237848) internal successors, (73136), 33887 states have internal predecessors, (73136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33888 states to 33888 states and 73136 transitions. [2022-04-18 19:08:33,911 INFO L78 Accepts]: Start accepts. Automaton has 33888 states and 73136 transitions. Word has length 31 [2022-04-18 19:08:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:33,911 INFO L478 AbstractCegarLoop]: Abstraction has 33888 states and 73136 transitions. [2022-04-18 19:08:33,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:33,911 INFO L276 IsEmpty]: Start isEmpty. Operand 33888 states and 73136 transitions. [2022-04-18 19:08:33,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:33,916 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:33,917 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:33,917 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-04-18 19:08:33,917 INFO L403 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:33,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash 83615021, now seen corresponding path program 57 times [2022-04-18 19:08:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:33,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962989394] [2022-04-18 19:08:33,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:33,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:34,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:34,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:34,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962989394] [2022-04-18 19:08:34,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962989394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:34,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:34,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:34,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765536555] [2022-04-18 19:08:34,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:34,404 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:34,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:34,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:34,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:34,404 INFO L87 Difference]: Start difference. First operand 33888 states and 73136 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:36,796 INFO L93 Difference]: Finished difference Result 35662 states and 76434 transitions. [2022-04-18 19:08:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:08:36,796 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:36,858 INFO L225 Difference]: With dead ends: 35662 [2022-04-18 19:08:36,858 INFO L226 Difference]: Without dead ends: 35662 [2022-04-18 19:08:36,859 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=818, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:08:36,859 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 570 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 3155 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 3226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:36,859 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 1038 Invalid, 3226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3155 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:08:36,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35662 states. [2022-04-18 19:08:37,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35662 to 33886. [2022-04-18 19:08:37,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33886 states, 33843 states have (on average 2.160860443814083) internal successors, (73130), 33885 states have internal predecessors, (73130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:37,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33886 states to 33886 states and 73130 transitions. [2022-04-18 19:08:37,308 INFO L78 Accepts]: Start accepts. Automaton has 33886 states and 73130 transitions. Word has length 31 [2022-04-18 19:08:37,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:37,308 INFO L478 AbstractCegarLoop]: Abstraction has 33886 states and 73130 transitions. [2022-04-18 19:08:37,309 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 33886 states and 73130 transitions. [2022-04-18 19:08:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:37,314 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:37,314 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:37,314 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-04-18 19:08:37,314 INFO L403 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:37,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:37,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1523118489, now seen corresponding path program 58 times [2022-04-18 19:08:37,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:37,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644477112] [2022-04-18 19:08:37,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:37,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:37,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:37,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:37,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644477112] [2022-04-18 19:08:37,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644477112] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:37,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:37,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:37,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878655528] [2022-04-18 19:08:37,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:37,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:37,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:37,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:37,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:37,935 INFO L87 Difference]: Start difference. First operand 33886 states and 73130 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:39,823 INFO L93 Difference]: Finished difference Result 35657 states and 76420 transitions. [2022-04-18 19:08:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:08:39,823 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:39,879 INFO L225 Difference]: With dead ends: 35657 [2022-04-18 19:08:39,879 INFO L226 Difference]: Without dead ends: 35657 [2022-04-18 19:08:39,879 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=251, Invalid=871, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:08:39,879 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 476 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 2307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:39,879 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1128 Invalid, 2307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:08:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35657 states. [2022-04-18 19:08:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35657 to 33790. [2022-04-18 19:08:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33790 states, 33747 states have (on average 2.160310546122618) internal successors, (72904), 33789 states have internal predecessors, (72904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:40,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33790 states to 33790 states and 72904 transitions. [2022-04-18 19:08:40,355 INFO L78 Accepts]: Start accepts. Automaton has 33790 states and 72904 transitions. Word has length 31 [2022-04-18 19:08:40,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:40,355 INFO L478 AbstractCegarLoop]: Abstraction has 33790 states and 72904 transitions. [2022-04-18 19:08:40,355 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:40,355 INFO L276 IsEmpty]: Start isEmpty. Operand 33790 states and 72904 transitions. [2022-04-18 19:08:40,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:40,361 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:40,361 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:40,361 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-04-18 19:08:40,361 INFO L403 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:40,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:40,362 INFO L85 PathProgramCache]: Analyzing trace with hash 232240225, now seen corresponding path program 59 times [2022-04-18 19:08:40,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:40,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931912577] [2022-04-18 19:08:40,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:40,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:41,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:41,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:41,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931912577] [2022-04-18 19:08:41,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931912577] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:41,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:41,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:08:41,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410863449] [2022-04-18 19:08:41,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:41,020 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:08:41,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:41,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:08:41,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:08:41,021 INFO L87 Difference]: Start difference. First operand 33790 states and 72904 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:44,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:44,137 INFO L93 Difference]: Finished difference Result 37297 states and 80111 transitions. [2022-04-18 19:08:44,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:08:44,137 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:44,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:44,197 INFO L225 Difference]: With dead ends: 37297 [2022-04-18 19:08:44,197 INFO L226 Difference]: Without dead ends: 37297 [2022-04-18 19:08:44,198 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:08:44,198 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 583 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 4519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:44,198 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 979 Invalid, 4519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:08:44,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37297 states. [2022-04-18 19:08:44,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37297 to 33993. [2022-04-18 19:08:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33993 states, 33950 states have (on average 2.1599116347569955) internal successors, (73329), 33992 states have internal predecessors, (73329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:44,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33993 states to 33993 states and 73329 transitions. [2022-04-18 19:08:44,748 INFO L78 Accepts]: Start accepts. Automaton has 33993 states and 73329 transitions. Word has length 31 [2022-04-18 19:08:44,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:44,748 INFO L478 AbstractCegarLoop]: Abstraction has 33993 states and 73329 transitions. [2022-04-18 19:08:44,748 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:44,748 INFO L276 IsEmpty]: Start isEmpty. Operand 33993 states and 73329 transitions. [2022-04-18 19:08:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:44,754 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:44,754 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:44,754 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-04-18 19:08:44,754 INFO L403 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:44,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:44,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1178309809, now seen corresponding path program 45 times [2022-04-18 19:08:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:44,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994642626] [2022-04-18 19:08:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:44,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:45,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:45,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994642626] [2022-04-18 19:08:45,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994642626] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:45,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:45,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:08:45,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86563432] [2022-04-18 19:08:45,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:45,803 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:08:45,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:45,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:08:45,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:08:45,803 INFO L87 Difference]: Start difference. First operand 33993 states and 73329 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:47,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:47,143 INFO L93 Difference]: Finished difference Result 41701 states and 88787 transitions. [2022-04-18 19:08:47,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:08:47,144 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:47,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:47,217 INFO L225 Difference]: With dead ends: 41701 [2022-04-18 19:08:47,217 INFO L226 Difference]: Without dead ends: 41701 [2022-04-18 19:08:47,217 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:08:47,218 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 603 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:47,218 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 455 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:08:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41701 states. [2022-04-18 19:08:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41701 to 36282. [2022-04-18 19:08:47,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36282 states, 36239 states have (on average 2.1568200005518916) internal successors, (78161), 36281 states have internal predecessors, (78161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36282 states to 36282 states and 78161 transitions. [2022-04-18 19:08:47,771 INFO L78 Accepts]: Start accepts. Automaton has 36282 states and 78161 transitions. Word has length 31 [2022-04-18 19:08:47,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:47,771 INFO L478 AbstractCegarLoop]: Abstraction has 36282 states and 78161 transitions. [2022-04-18 19:08:47,771 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:47,771 INFO L276 IsEmpty]: Start isEmpty. Operand 36282 states and 78161 transitions. [2022-04-18 19:08:47,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:47,777 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:47,777 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:47,777 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-04-18 19:08:47,778 INFO L403 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:47,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:47,778 INFO L85 PathProgramCache]: Analyzing trace with hash 286676521, now seen corresponding path program 46 times [2022-04-18 19:08:47,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:47,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741916174] [2022-04-18 19:08:47,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:47,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:49,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:49,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741916174] [2022-04-18 19:08:49,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741916174] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:49,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:49,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:08:49,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300736712] [2022-04-18 19:08:49,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:49,203 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:08:49,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:49,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:08:49,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:08:49,204 INFO L87 Difference]: Start difference. First operand 36282 states and 78161 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:50,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:50,738 INFO L93 Difference]: Finished difference Result 44352 states and 94379 transitions. [2022-04-18 19:08:50,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:08:50,738 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:50,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:50,820 INFO L225 Difference]: With dead ends: 44352 [2022-04-18 19:08:50,820 INFO L226 Difference]: Without dead ends: 44352 [2022-04-18 19:08:50,820 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:08:50,820 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 637 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:50,820 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [637 Valid, 452 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:08:50,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44352 states. [2022-04-18 19:08:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44352 to 36338. [2022-04-18 19:08:51,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36338 states, 36295 states have (on average 2.156247416999587) internal successors, (78261), 36337 states have internal predecessors, (78261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:51,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36338 states to 36338 states and 78261 transitions. [2022-04-18 19:08:51,455 INFO L78 Accepts]: Start accepts. Automaton has 36338 states and 78261 transitions. Word has length 31 [2022-04-18 19:08:51,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:51,455 INFO L478 AbstractCegarLoop]: Abstraction has 36338 states and 78261 transitions. [2022-04-18 19:08:51,455 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:51,455 INFO L276 IsEmpty]: Start isEmpty. Operand 36338 states and 78261 transitions. [2022-04-18 19:08:51,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:51,461 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:51,461 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:51,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-04-18 19:08:51,462 INFO L403 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:51,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:51,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1890561709, now seen corresponding path program 47 times [2022-04-18 19:08:51,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:51,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148930026] [2022-04-18 19:08:51,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:51,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:53,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:53,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148930026] [2022-04-18 19:08:53,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148930026] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:53,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:53,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:08:53,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436918599] [2022-04-18 19:08:53,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:53,672 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:08:53,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:53,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:08:53,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:08:53,672 INFO L87 Difference]: Start difference. First operand 36338 states and 78261 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:55,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:55,946 INFO L93 Difference]: Finished difference Result 46902 states and 99628 transitions. [2022-04-18 19:08:55,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:08:55,946 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:55,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:56,042 INFO L225 Difference]: With dead ends: 46902 [2022-04-18 19:08:56,042 INFO L226 Difference]: Without dead ends: 46902 [2022-04-18 19:08:56,042 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:08:56,042 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 621 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:56,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [621 Valid, 465 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:08:56,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46902 states. [2022-04-18 19:08:56,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46902 to 37137. [2022-04-18 19:08:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37137 states, 37094 states have (on average 2.1568717312772954) internal successors, (80007), 37136 states have internal predecessors, (80007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37137 states to 37137 states and 80007 transitions. [2022-04-18 19:08:56,654 INFO L78 Accepts]: Start accepts. Automaton has 37137 states and 80007 transitions. Word has length 31 [2022-04-18 19:08:56,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:56,654 INFO L478 AbstractCegarLoop]: Abstraction has 37137 states and 80007 transitions. [2022-04-18 19:08:56,654 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand 37137 states and 80007 transitions. [2022-04-18 19:08:56,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:56,661 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:56,661 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:56,661 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-04-18 19:08:56,661 INFO L403 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:56,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:56,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1033385399, now seen corresponding path program 48 times [2022-04-18 19:08:56,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:56,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995735849] [2022-04-18 19:08:56,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:56,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:57,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:57,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995735849] [2022-04-18 19:08:57,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995735849] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:57,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:57,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:08:57,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879701831] [2022-04-18 19:08:57,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:57,568 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:08:57,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:57,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:08:57,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:08:57,568 INFO L87 Difference]: Start difference. First operand 37137 states and 80007 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:58,992 INFO L93 Difference]: Finished difference Result 43130 states and 91652 transitions. [2022-04-18 19:08:58,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:08:58,993 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:08:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:59,067 INFO L225 Difference]: With dead ends: 43130 [2022-04-18 19:08:59,067 INFO L226 Difference]: Without dead ends: 43130 [2022-04-18 19:08:59,067 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:08:59,068 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 630 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:59,068 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [630 Valid, 441 Invalid, 2128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:08:59,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43130 states. [2022-04-18 19:08:59,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43130 to 36394. [2022-04-18 19:08:59,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36394 states, 36351 states have (on average 2.155676597617672) internal successors, (78361), 36393 states have internal predecessors, (78361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:59,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36394 states to 36394 states and 78361 transitions. [2022-04-18 19:08:59,612 INFO L78 Accepts]: Start accepts. Automaton has 36394 states and 78361 transitions. Word has length 31 [2022-04-18 19:08:59,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:59,612 INFO L478 AbstractCegarLoop]: Abstraction has 36394 states and 78361 transitions. [2022-04-18 19:08:59,612 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 36394 states and 78361 transitions. [2022-04-18 19:08:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:08:59,618 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:59,618 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:08:59,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-04-18 19:08:59,619 INFO L403 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:08:59,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:59,619 INFO L85 PathProgramCache]: Analyzing trace with hash 391026697, now seen corresponding path program 49 times [2022-04-18 19:08:59,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:59,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935316858] [2022-04-18 19:08:59,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:59,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:01,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:01,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:01,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935316858] [2022-04-18 19:09:01,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935316858] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:01,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:01,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:09:01,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704305162] [2022-04-18 19:09:01,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:01,127 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:09:01,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:01,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:09:01,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:09:01,128 INFO L87 Difference]: Start difference. First operand 36394 states and 78361 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:02,809 INFO L93 Difference]: Finished difference Result 47921 states and 101678 transitions. [2022-04-18 19:09:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:09:02,810 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:02,893 INFO L225 Difference]: With dead ends: 47921 [2022-04-18 19:09:02,893 INFO L226 Difference]: Without dead ends: 47921 [2022-04-18 19:09:02,893 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:09:02,894 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 647 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 2295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:02,894 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 438 Invalid, 2295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:09:02,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47921 states. [2022-04-18 19:09:03,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47921 to 37470. [2022-04-18 19:09:03,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37470 states, 37427 states have (on average 2.155262243834665) internal successors, (80665), 37469 states have internal predecessors, (80665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37470 states to 37470 states and 80665 transitions. [2022-04-18 19:09:03,493 INFO L78 Accepts]: Start accepts. Automaton has 37470 states and 80665 transitions. Word has length 31 [2022-04-18 19:09:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:03,493 INFO L478 AbstractCegarLoop]: Abstraction has 37470 states and 80665 transitions. [2022-04-18 19:09:03,493 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 37470 states and 80665 transitions. [2022-04-18 19:09:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:03,499 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:03,499 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:03,500 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-04-18 19:09:03,500 INFO L403 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:03,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:03,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1248203007, now seen corresponding path program 50 times [2022-04-18 19:09:03,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:03,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478207984] [2022-04-18 19:09:03,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:03,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:04,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:04,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:04,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478207984] [2022-04-18 19:09:04,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478207984] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:04,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:04,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:04,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603522349] [2022-04-18 19:09:04,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:04,590 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:04,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:04,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:04,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:04,590 INFO L87 Difference]: Start difference. First operand 37470 states and 80665 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:06,201 INFO L93 Difference]: Finished difference Result 45842 states and 97237 transitions. [2022-04-18 19:09:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:09:06,201 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:06,293 INFO L225 Difference]: With dead ends: 45842 [2022-04-18 19:09:06,293 INFO L226 Difference]: Without dead ends: 45842 [2022-04-18 19:09:06,294 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:09:06,294 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 577 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:06,294 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 440 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:09:06,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45842 states. [2022-04-18 19:09:06,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45842 to 37356. [2022-04-18 19:09:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37356 states, 37313 states have (on average 2.155736606544636) internal successors, (80437), 37355 states have internal predecessors, (80437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37356 states to 37356 states and 80437 transitions. [2022-04-18 19:09:06,892 INFO L78 Accepts]: Start accepts. Automaton has 37356 states and 80437 transitions. Word has length 31 [2022-04-18 19:09:06,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:06,893 INFO L478 AbstractCegarLoop]: Abstraction has 37356 states and 80437 transitions. [2022-04-18 19:09:06,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 37356 states and 80437 transitions. [2022-04-18 19:09:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:06,898 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:06,899 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:06,899 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-04-18 19:09:06,899 INFO L403 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash 822243817, now seen corresponding path program 51 times [2022-04-18 19:09:06,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:06,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780510797] [2022-04-18 19:09:06,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:06,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:07,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:07,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:07,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780510797] [2022-04-18 19:09:07,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780510797] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:07,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:07,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:07,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333374599] [2022-04-18 19:09:07,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:07,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:07,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:07,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:07,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:07,809 INFO L87 Difference]: Start difference. First operand 37356 states and 80437 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:09,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:09,111 INFO L93 Difference]: Finished difference Result 44101 states and 93615 transitions. [2022-04-18 19:09:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:09:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:09,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:09,194 INFO L225 Difference]: With dead ends: 44101 [2022-04-18 19:09:09,194 INFO L226 Difference]: Without dead ends: 44101 [2022-04-18 19:09:09,195 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:09:09,195 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 598 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:09,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [598 Valid, 428 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:09:09,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44101 states. [2022-04-18 19:09:09,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44101 to 36450. [2022-04-18 19:09:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36450 states, 36407 states have (on average 2.1551075342653885) internal successors, (78461), 36449 states have internal predecessors, (78461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:09,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36450 states to 36450 states and 78461 transitions. [2022-04-18 19:09:09,788 INFO L78 Accepts]: Start accepts. Automaton has 36450 states and 78461 transitions. Word has length 31 [2022-04-18 19:09:09,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:09,788 INFO L478 AbstractCegarLoop]: Abstraction has 36450 states and 78461 transitions. [2022-04-18 19:09:09,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 36450 states and 78461 transitions. [2022-04-18 19:09:09,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:09,794 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:09,794 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:09,795 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-04-18 19:09:09,795 INFO L403 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:09,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:09,795 INFO L85 PathProgramCache]: Analyzing trace with hash 645632509, now seen corresponding path program 52 times [2022-04-18 19:09:09,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:09,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769646692] [2022-04-18 19:09:09,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:09,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:11,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:11,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769646692] [2022-04-18 19:09:11,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769646692] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:11,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:11,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:09:11,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252526170] [2022-04-18 19:09:11,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:11,678 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:09:11,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:11,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:09:11,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:09:11,679 INFO L87 Difference]: Start difference. First operand 36450 states and 78461 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:13,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:13,285 INFO L93 Difference]: Finished difference Result 48200 states and 102137 transitions. [2022-04-18 19:09:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:09:13,285 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:13,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:13,368 INFO L225 Difference]: With dead ends: 48200 [2022-04-18 19:09:13,369 INFO L226 Difference]: Without dead ends: 48200 [2022-04-18 19:09:13,369 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:09:13,369 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 759 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 2285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:13,369 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 469 Invalid, 2285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:09:13,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48200 states. [2022-04-18 19:09:13,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48200 to 38416. [2022-04-18 19:09:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38416 states, 38373 states have (on average 2.1569593203554582) internal successors, (82769), 38415 states have internal predecessors, (82769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38416 states to 38416 states and 82769 transitions. [2022-04-18 19:09:14,105 INFO L78 Accepts]: Start accepts. Automaton has 38416 states and 82769 transitions. Word has length 31 [2022-04-18 19:09:14,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:14,105 INFO L478 AbstractCegarLoop]: Abstraction has 38416 states and 82769 transitions. [2022-04-18 19:09:14,105 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 38416 states and 82769 transitions. [2022-04-18 19:09:14,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:14,111 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:14,111 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:14,111 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-04-18 19:09:14,111 INFO L403 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:14,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1502808819, now seen corresponding path program 53 times [2022-04-18 19:09:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:14,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231361247] [2022-04-18 19:09:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:15,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:15,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231361247] [2022-04-18 19:09:15,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231361247] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:15,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:15,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:15,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309528744] [2022-04-18 19:09:15,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:15,128 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:15,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:15,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:15,129 INFO L87 Difference]: Start difference. First operand 38416 states and 82769 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:16,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:16,653 INFO L93 Difference]: Finished difference Result 46016 states and 97483 transitions. [2022-04-18 19:09:16,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:09:16,653 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:16,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:16,741 INFO L225 Difference]: With dead ends: 46016 [2022-04-18 19:09:16,742 INFO L226 Difference]: Without dead ends: 46016 [2022-04-18 19:09:16,742 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:09:16,742 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 773 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:16,742 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [773 Valid, 469 Invalid, 2249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:09:16,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46016 states. [2022-04-18 19:09:17,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46016 to 38279. [2022-04-18 19:09:17,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38279 states, 38236 states have (on average 2.1572601736583326) internal successors, (82485), 38278 states have internal predecessors, (82485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38279 states to 38279 states and 82485 transitions. [2022-04-18 19:09:17,565 INFO L78 Accepts]: Start accepts. Automaton has 38279 states and 82485 transitions. Word has length 31 [2022-04-18 19:09:17,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:17,565 INFO L478 AbstractCegarLoop]: Abstraction has 38279 states and 82485 transitions. [2022-04-18 19:09:17,565 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:17,566 INFO L276 IsEmpty]: Start isEmpty. Operand 38279 states and 82485 transitions. [2022-04-18 19:09:17,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:17,571 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:17,571 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:17,571 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-04-18 19:09:17,571 INFO L403 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:17,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:17,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1076849629, now seen corresponding path program 54 times [2022-04-18 19:09:17,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:17,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679847777] [2022-04-18 19:09:17,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:17,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:18,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:18,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679847777] [2022-04-18 19:09:18,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679847777] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:18,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:18,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:18,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922385678] [2022-04-18 19:09:18,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:18,349 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:18,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:18,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:18,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:18,349 INFO L87 Difference]: Start difference. First operand 38279 states and 82485 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:19,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:19,728 INFO L93 Difference]: Finished difference Result 46650 states and 98759 transitions. [2022-04-18 19:09:19,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:09:19,729 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:19,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:19,807 INFO L225 Difference]: With dead ends: 46650 [2022-04-18 19:09:19,807 INFO L226 Difference]: Without dead ends: 46650 [2022-04-18 19:09:19,807 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=379, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:09:19,807 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 801 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:19,807 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [801 Valid, 465 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:09:19,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46650 states. [2022-04-18 19:09:20,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46650 to 38142. [2022-04-18 19:09:20,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38142 states, 38099 states have (on average 2.157563190634925) internal successors, (82201), 38141 states have internal predecessors, (82201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38142 states to 38142 states and 82201 transitions. [2022-04-18 19:09:20,508 INFO L78 Accepts]: Start accepts. Automaton has 38142 states and 82201 transitions. Word has length 31 [2022-04-18 19:09:20,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:20,508 INFO L478 AbstractCegarLoop]: Abstraction has 38142 states and 82201 transitions. [2022-04-18 19:09:20,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:20,508 INFO L276 IsEmpty]: Start isEmpty. Operand 38142 states and 82201 transitions. [2022-04-18 19:09:20,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:20,514 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:20,514 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:20,514 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-04-18 19:09:20,514 INFO L403 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:20,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:20,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2074827725, now seen corresponding path program 55 times [2022-04-18 19:09:20,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:20,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841253399] [2022-04-18 19:09:20,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:20,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:21,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:21,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841253399] [2022-04-18 19:09:21,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841253399] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:21,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:21,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:21,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636032072] [2022-04-18 19:09:21,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:21,087 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:21,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:21,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:21,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:21,088 INFO L87 Difference]: Start difference. First operand 38142 states and 82201 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:23,106 INFO L93 Difference]: Finished difference Result 43285 states and 92769 transitions. [2022-04-18 19:09:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:09:23,106 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:23,181 INFO L225 Difference]: With dead ends: 43285 [2022-04-18 19:09:23,181 INFO L226 Difference]: Without dead ends: 43285 [2022-04-18 19:09:23,182 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=248, Invalid=622, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:09:23,182 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 411 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:23,182 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [411 Valid, 455 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:09:23,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43285 states. [2022-04-18 19:09:23,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43285 to 38773. [2022-04-18 19:09:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38773 states, 38730 states have (on average 2.1566485928221018) internal successors, (83527), 38772 states have internal predecessors, (83527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:23,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38773 states to 38773 states and 83527 transitions. [2022-04-18 19:09:23,763 INFO L78 Accepts]: Start accepts. Automaton has 38773 states and 83527 transitions. Word has length 31 [2022-04-18 19:09:23,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:23,763 INFO L478 AbstractCegarLoop]: Abstraction has 38773 states and 83527 transitions. [2022-04-18 19:09:23,763 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:23,764 INFO L276 IsEmpty]: Start isEmpty. Operand 38773 states and 83527 transitions. [2022-04-18 19:09:23,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:23,770 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:23,770 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:23,770 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-04-18 19:09:23,770 INFO L403 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:23,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:23,770 INFO L85 PathProgramCache]: Analyzing trace with hash -480482153, now seen corresponding path program 56 times [2022-04-18 19:09:23,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:23,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23304517] [2022-04-18 19:09:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:23,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:24,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:24,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:24,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23304517] [2022-04-18 19:09:24,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23304517] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:24,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:24,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:09:24,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024993862] [2022-04-18 19:09:24,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:24,015 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:09:24,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:24,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:09:24,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:09:24,016 INFO L87 Difference]: Start difference. First operand 38773 states and 83527 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:25,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:25,630 INFO L93 Difference]: Finished difference Result 45753 states and 96949 transitions. [2022-04-18 19:09:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:09:25,631 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:25,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:25,718 INFO L225 Difference]: With dead ends: 45753 [2022-04-18 19:09:25,718 INFO L226 Difference]: Without dead ends: 45753 [2022-04-18 19:09:25,719 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2022-04-18 19:09:25,719 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 625 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:25,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [625 Valid, 471 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:09:25,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45753 states. [2022-04-18 19:09:26,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45753 to 36394. [2022-04-18 19:09:26,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36394 states, 36351 states have (on average 2.1599405793513244) internal successors, (78516), 36393 states have internal predecessors, (78516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36394 states to 36394 states and 78516 transitions. [2022-04-18 19:09:26,317 INFO L78 Accepts]: Start accepts. Automaton has 36394 states and 78516 transitions. Word has length 31 [2022-04-18 19:09:26,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:26,317 INFO L478 AbstractCegarLoop]: Abstraction has 36394 states and 78516 transitions. [2022-04-18 19:09:26,317 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 36394 states and 78516 transitions. [2022-04-18 19:09:26,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:26,323 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:26,323 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:26,323 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-04-18 19:09:26,323 INFO L403 AbstractCegarLoop]: === Iteration 169 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:26,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:26,323 INFO L85 PathProgramCache]: Analyzing trace with hash -524495276, now seen corresponding path program 7 times [2022-04-18 19:09:26,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:26,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904866962] [2022-04-18 19:09:26,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:26,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:26,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:26,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904866962] [2022-04-18 19:09:26,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904866962] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:26,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:26,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:09:26,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363028397] [2022-04-18 19:09:26,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:26,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:09:26,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:26,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:09:26,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:09:26,504 INFO L87 Difference]: Start difference. First operand 36394 states and 78516 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:27,629 INFO L93 Difference]: Finished difference Result 40613 states and 86565 transitions. [2022-04-18 19:09:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:09:27,629 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:27,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:27,701 INFO L225 Difference]: With dead ends: 40613 [2022-04-18 19:09:27,701 INFO L226 Difference]: Without dead ends: 40613 [2022-04-18 19:09:27,701 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:09:27,701 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 706 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:27,701 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [706 Valid, 454 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 19:09:27,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40613 states. [2022-04-18 19:09:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40613 to 26075. [2022-04-18 19:09:28,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26075 states, 26032 states have (on average 2.1495082974800246) internal successors, (55956), 26074 states have internal predecessors, (55956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:28,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26075 states to 26075 states and 55956 transitions. [2022-04-18 19:09:28,189 INFO L78 Accepts]: Start accepts. Automaton has 26075 states and 55956 transitions. Word has length 31 [2022-04-18 19:09:28,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:28,190 INFO L478 AbstractCegarLoop]: Abstraction has 26075 states and 55956 transitions. [2022-04-18 19:09:28,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:28,190 INFO L276 IsEmpty]: Start isEmpty. Operand 26075 states and 55956 transitions. [2022-04-18 19:09:28,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:28,195 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:28,195 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:28,195 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-04-18 19:09:28,195 INFO L403 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:28,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1569509829, now seen corresponding path program 60 times [2022-04-18 19:09:28,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:28,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520827103] [2022-04-18 19:09:28,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:28,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:28,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:28,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:28,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520827103] [2022-04-18 19:09:28,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520827103] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:28,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:28,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:09:28,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537418574] [2022-04-18 19:09:28,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:28,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:09:28,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:28,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:09:28,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:09:28,860 INFO L87 Difference]: Start difference. First operand 26075 states and 55956 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:31,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:31,813 INFO L93 Difference]: Finished difference Result 30525 states and 65082 transitions. [2022-04-18 19:09:31,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:09:31,813 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:31,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:31,865 INFO L225 Difference]: With dead ends: 30525 [2022-04-18 19:09:31,865 INFO L226 Difference]: Without dead ends: 30525 [2022-04-18 19:09:31,865 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=706, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:09:31,866 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 717 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 4525 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 4643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 4525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:31,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [717 Valid, 711 Invalid, 4643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 4525 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:09:31,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30525 states. [2022-04-18 19:09:32,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30525 to 25403. [2022-04-18 19:09:32,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25403 states, 25360 states have (on average 2.1511829652996846) internal successors, (54554), 25402 states have internal predecessors, (54554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25403 states to 25403 states and 54554 transitions. [2022-04-18 19:09:32,273 INFO L78 Accepts]: Start accepts. Automaton has 25403 states and 54554 transitions. Word has length 31 [2022-04-18 19:09:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:32,274 INFO L478 AbstractCegarLoop]: Abstraction has 25403 states and 54554 transitions. [2022-04-18 19:09:32,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 25403 states and 54554 transitions. [2022-04-18 19:09:32,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:32,278 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:32,278 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:32,278 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-04-18 19:09:32,278 INFO L403 AbstractCegarLoop]: === Iteration 171 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:32,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:32,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2116960512, now seen corresponding path program 39 times [2022-04-18 19:09:32,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:32,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640988201] [2022-04-18 19:09:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:32,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:32,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:32,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640988201] [2022-04-18 19:09:32,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640988201] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:32,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:32,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:32,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218878842] [2022-04-18 19:09:32,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:32,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:32,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:32,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:32,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:32,728 INFO L87 Difference]: Start difference. First operand 25403 states and 54554 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:35,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:35,964 INFO L93 Difference]: Finished difference Result 37483 states and 79630 transitions. [2022-04-18 19:09:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:09:35,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:35,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:36,021 INFO L225 Difference]: With dead ends: 37483 [2022-04-18 19:09:36,021 INFO L226 Difference]: Without dead ends: 37483 [2022-04-18 19:09:36,022 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=265, Invalid=727, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:09:36,022 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 406 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 3815 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 4214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 3815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:36,022 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [406 Valid, 435 Invalid, 4214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 3815 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:09:36,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37483 states. [2022-04-18 19:09:36,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37483 to 26338. [2022-04-18 19:09:36,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26338 states, 26295 states have (on average 2.150675033276288) internal successors, (56552), 26337 states have internal predecessors, (56552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:36,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26338 states to 26338 states and 56552 transitions. [2022-04-18 19:09:36,443 INFO L78 Accepts]: Start accepts. Automaton has 26338 states and 56552 transitions. Word has length 31 [2022-04-18 19:09:36,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:36,443 INFO L478 AbstractCegarLoop]: Abstraction has 26338 states and 56552 transitions. [2022-04-18 19:09:36,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:36,444 INFO L276 IsEmpty]: Start isEmpty. Operand 26338 states and 56552 transitions. [2022-04-18 19:09:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:36,448 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:36,448 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:36,448 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-04-18 19:09:36,448 INFO L403 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:36,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:36,449 INFO L85 PathProgramCache]: Analyzing trace with hash -66325163, now seen corresponding path program 61 times [2022-04-18 19:09:36,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:36,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923609332] [2022-04-18 19:09:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:36,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:37,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:37,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:37,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923609332] [2022-04-18 19:09:37,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923609332] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:37,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:37,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:09:37,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282403395] [2022-04-18 19:09:37,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:37,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:09:37,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:37,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:09:37,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:09:37,013 INFO L87 Difference]: Start difference. First operand 26338 states and 56552 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:39,895 INFO L93 Difference]: Finished difference Result 29823 states and 63602 transitions. [2022-04-18 19:09:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:09:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:39,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:39,945 INFO L225 Difference]: With dead ends: 29823 [2022-04-18 19:09:39,945 INFO L226 Difference]: Without dead ends: 29823 [2022-04-18 19:09:39,945 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=706, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:09:39,945 INFO L913 BasicCegarLoop]: 155 mSDtfsCounter, 687 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 4201 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 4325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 4201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:39,945 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 746 Invalid, 4325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 4201 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:09:39,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29823 states. [2022-04-18 19:09:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29823 to 26341. [2022-04-18 19:09:40,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26341 states, 26298 states have (on average 2.1504296904707583) internal successors, (56552), 26340 states have internal predecessors, (56552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:40,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26341 states to 26341 states and 56552 transitions. [2022-04-18 19:09:40,340 INFO L78 Accepts]: Start accepts. Automaton has 26341 states and 56552 transitions. Word has length 31 [2022-04-18 19:09:40,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:40,340 INFO L478 AbstractCegarLoop]: Abstraction has 26341 states and 56552 transitions. [2022-04-18 19:09:40,340 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:40,340 INFO L276 IsEmpty]: Start isEmpty. Operand 26341 states and 56552 transitions. [2022-04-18 19:09:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:40,345 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:40,345 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:40,345 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-04-18 19:09:40,345 INFO L403 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:40,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:40,345 INFO L85 PathProgramCache]: Analyzing trace with hash -970602379, now seen corresponding path program 57 times [2022-04-18 19:09:40,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:40,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99682784] [2022-04-18 19:09:40,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:40,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:41,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:41,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:41,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99682784] [2022-04-18 19:09:41,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99682784] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:41,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:41,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:09:41,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180510880] [2022-04-18 19:09:41,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:41,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:09:41,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:41,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:09:41,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:09:41,617 INFO L87 Difference]: Start difference. First operand 26341 states and 56552 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:43,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:43,162 INFO L93 Difference]: Finished difference Result 51949 states and 110319 transitions. [2022-04-18 19:09:43,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:09:43,162 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:43,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:43,273 INFO L225 Difference]: With dead ends: 51949 [2022-04-18 19:09:43,273 INFO L226 Difference]: Without dead ends: 51949 [2022-04-18 19:09:43,273 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:09:43,273 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 641 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:43,273 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 573 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:09:43,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51949 states. [2022-04-18 19:09:43,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51949 to 28261. [2022-04-18 19:09:43,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28261 states, 28218 states have (on average 2.1512509745552486) internal successors, (60704), 28260 states have internal predecessors, (60704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28261 states to 28261 states and 60704 transitions. [2022-04-18 19:09:43,869 INFO L78 Accepts]: Start accepts. Automaton has 28261 states and 60704 transitions. Word has length 31 [2022-04-18 19:09:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:43,869 INFO L478 AbstractCegarLoop]: Abstraction has 28261 states and 60704 transitions. [2022-04-18 19:09:43,869 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:43,869 INFO L276 IsEmpty]: Start isEmpty. Operand 28261 states and 60704 transitions. [2022-04-18 19:09:43,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:43,874 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:43,874 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:43,874 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-04-18 19:09:43,874 INFO L403 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:43,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:43,875 INFO L85 PathProgramCache]: Analyzing trace with hash -113426069, now seen corresponding path program 58 times [2022-04-18 19:09:43,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:43,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79995120] [2022-04-18 19:09:43,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:43,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:45,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:45,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:45,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79995120] [2022-04-18 19:09:45,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79995120] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:45,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:45,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:45,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540578983] [2022-04-18 19:09:45,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:45,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:45,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:45,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:45,201 INFO L87 Difference]: Start difference. First operand 28261 states and 60704 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:46,661 INFO L93 Difference]: Finished difference Result 52019 states and 110451 transitions. [2022-04-18 19:09:46,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:09:46,662 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:46,765 INFO L225 Difference]: With dead ends: 52019 [2022-04-18 19:09:46,765 INFO L226 Difference]: Without dead ends: 52019 [2022-04-18 19:09:46,765 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=345, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:09:46,766 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 666 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:46,766 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [666 Valid, 568 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:09:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52019 states. [2022-04-18 19:09:47,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52019 to 28249. [2022-04-18 19:09:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28249 states, 28206 states have (on average 2.1512089626320643) internal successors, (60677), 28248 states have internal predecessors, (60677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:47,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28249 states to 28249 states and 60677 transitions. [2022-04-18 19:09:47,335 INFO L78 Accepts]: Start accepts. Automaton has 28249 states and 60677 transitions. Word has length 31 [2022-04-18 19:09:47,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:47,336 INFO L478 AbstractCegarLoop]: Abstraction has 28249 states and 60677 transitions. [2022-04-18 19:09:47,336 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 28249 states and 60677 transitions. [2022-04-18 19:09:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:47,341 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:47,341 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:47,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-04-18 19:09:47,341 INFO L403 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:47,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:47,341 INFO L85 PathProgramCache]: Analyzing trace with hash -539385259, now seen corresponding path program 59 times [2022-04-18 19:09:47,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:47,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640483159] [2022-04-18 19:09:47,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:47,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:48,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:48,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640483159] [2022-04-18 19:09:48,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640483159] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:48,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:48,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:48,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388651629] [2022-04-18 19:09:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:48,143 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:48,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:48,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:48,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:48,143 INFO L87 Difference]: Start difference. First operand 28249 states and 60677 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:50,311 INFO L93 Difference]: Finished difference Result 41184 states and 87996 transitions. [2022-04-18 19:09:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:09:50,311 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:50,381 INFO L225 Difference]: With dead ends: 41184 [2022-04-18 19:09:50,381 INFO L226 Difference]: Without dead ends: 41184 [2022-04-18 19:09:50,382 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=234, Invalid=636, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:09:50,382 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 387 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 3411 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 3671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 3411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:50,382 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 666 Invalid, 3671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 3411 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:09:50,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41184 states. [2022-04-18 19:09:50,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41184 to 28359. [2022-04-18 19:09:50,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28359 states, 28316 states have (on average 2.1509747139426474) internal successors, (60907), 28358 states have internal predecessors, (60907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:50,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28359 states to 28359 states and 60907 transitions. [2022-04-18 19:09:50,873 INFO L78 Accepts]: Start accepts. Automaton has 28359 states and 60907 transitions. Word has length 31 [2022-04-18 19:09:50,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:50,874 INFO L478 AbstractCegarLoop]: Abstraction has 28359 states and 60907 transitions. [2022-04-18 19:09:50,874 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 28359 states and 60907 transitions. [2022-04-18 19:09:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:50,879 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:50,879 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:50,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-04-18 19:09:50,879 INFO L403 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:50,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:50,879 INFO L85 PathProgramCache]: Analyzing trace with hash 603904683, now seen corresponding path program 60 times [2022-04-18 19:09:50,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:50,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496293235] [2022-04-18 19:09:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:50,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:51,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:51,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496293235] [2022-04-18 19:09:51,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496293235] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:51,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:51,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:09:51,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927500979] [2022-04-18 19:09:51,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:51,388 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:09:51,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:51,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:09:51,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:09:51,388 INFO L87 Difference]: Start difference. First operand 28359 states and 60907 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:53,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:53,424 INFO L93 Difference]: Finished difference Result 41504 states and 88644 transitions. [2022-04-18 19:09:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:09:53,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:53,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:53,493 INFO L225 Difference]: With dead ends: 41504 [2022-04-18 19:09:53,493 INFO L226 Difference]: Without dead ends: 41504 [2022-04-18 19:09:53,493 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:09:53,494 INFO L913 BasicCegarLoop]: 148 mSDtfsCounter, 512 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 2497 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 2898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:53,494 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 490 Invalid, 2898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2497 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:09:53,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41504 states. [2022-04-18 19:09:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41504 to 28391. [2022-04-18 19:09:53,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28391 states, 28348 states have (on average 2.1509453929730493) internal successors, (60975), 28390 states have internal predecessors, (60975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:53,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28391 states to 28391 states and 60975 transitions. [2022-04-18 19:09:53,968 INFO L78 Accepts]: Start accepts. Automaton has 28391 states and 60975 transitions. Word has length 31 [2022-04-18 19:09:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:53,968 INFO L478 AbstractCegarLoop]: Abstraction has 28391 states and 60975 transitions. [2022-04-18 19:09:53,968 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:53,968 INFO L276 IsEmpty]: Start isEmpty. Operand 28391 states and 60975 transitions. [2022-04-18 19:09:53,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:53,973 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:53,973 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:53,973 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-04-18 19:09:53,973 INFO L403 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:53,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:53,974 INFO L85 PathProgramCache]: Analyzing trace with hash -2096717041, now seen corresponding path program 61 times [2022-04-18 19:09:53,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:53,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151299965] [2022-04-18 19:09:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:53,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:54,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:54,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151299965] [2022-04-18 19:09:54,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151299965] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:54,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:54,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:09:54,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001874433] [2022-04-18 19:09:54,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:54,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:09:54,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:54,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:09:54,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:09:54,207 INFO L87 Difference]: Start difference. First operand 28391 states and 60975 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:55,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:55,386 INFO L93 Difference]: Finished difference Result 50352 states and 107109 transitions. [2022-04-18 19:09:55,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:09:55,386 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:55,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:55,485 INFO L225 Difference]: With dead ends: 50352 [2022-04-18 19:09:55,485 INFO L226 Difference]: Without dead ends: 50352 [2022-04-18 19:09:55,486 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:09:55,486 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 590 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:55,486 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 570 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:09:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50352 states. [2022-04-18 19:09:55,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50352 to 27711. [2022-04-18 19:09:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27711 states, 27668 states have (on average 2.1525227699869887) internal successors, (59556), 27710 states have internal predecessors, (59556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27711 states to 27711 states and 59556 transitions. [2022-04-18 19:09:56,023 INFO L78 Accepts]: Start accepts. Automaton has 27711 states and 59556 transitions. Word has length 31 [2022-04-18 19:09:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:56,024 INFO L478 AbstractCegarLoop]: Abstraction has 27711 states and 59556 transitions. [2022-04-18 19:09:56,024 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:56,024 INFO L276 IsEmpty]: Start isEmpty. Operand 27711 states and 59556 transitions. [2022-04-18 19:09:56,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:56,028 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:56,028 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:56,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-04-18 19:09:56,028 INFO L403 AbstractCegarLoop]: === Iteration 178 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:56,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2140730164, now seen corresponding path program 8 times [2022-04-18 19:09:56,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:56,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547375058] [2022-04-18 19:09:56,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:56,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:56,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:56,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:56,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547375058] [2022-04-18 19:09:56,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547375058] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:56,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:56,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:09:56,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040623691] [2022-04-18 19:09:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:56,214 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:09:56,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:56,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:09:56,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:09:56,215 INFO L87 Difference]: Start difference. First operand 27711 states and 59556 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:57,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:57,580 INFO L93 Difference]: Finished difference Result 48853 states and 104082 transitions. [2022-04-18 19:09:57,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:09:57,580 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:57,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:57,667 INFO L225 Difference]: With dead ends: 48853 [2022-04-18 19:09:57,668 INFO L226 Difference]: Without dead ends: 48853 [2022-04-18 19:09:57,668 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:09:57,668 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 689 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 2142 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:57,668 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 574 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2142 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:09:57,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48853 states. [2022-04-18 19:09:58,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48853 to 25449. [2022-04-18 19:09:58,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25449 states, 25406 states have (on average 2.1509092340392035) internal successors, (54646), 25448 states have internal predecessors, (54646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25449 states to 25449 states and 54646 transitions. [2022-04-18 19:09:58,207 INFO L78 Accepts]: Start accepts. Automaton has 25449 states and 54646 transitions. Word has length 31 [2022-04-18 19:09:58,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:58,208 INFO L478 AbstractCegarLoop]: Abstraction has 25449 states and 54646 transitions. [2022-04-18 19:09:58,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:58,208 INFO L276 IsEmpty]: Start isEmpty. Operand 25449 states and 54646 transitions. [2022-04-18 19:09:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:09:58,213 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:58,213 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:58,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-04-18 19:09:58,213 INFO L403 AbstractCegarLoop]: === Iteration 179 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:09:58,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:58,213 INFO L85 PathProgramCache]: Analyzing trace with hash 21082826, now seen corresponding path program 9 times [2022-04-18 19:09:58,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:58,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344935676] [2022-04-18 19:09:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:58,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:58,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:58,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344935676] [2022-04-18 19:09:58,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344935676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:58,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:58,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:09:58,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073307603] [2022-04-18 19:09:58,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:58,389 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:09:58,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:58,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:09:58,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:09:58,390 INFO L87 Difference]: Start difference. First operand 25449 states and 54646 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:59,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:59,616 INFO L93 Difference]: Finished difference Result 42489 states and 90609 transitions. [2022-04-18 19:09:59,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:09:59,617 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:09:59,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:59,686 INFO L225 Difference]: With dead ends: 42489 [2022-04-18 19:09:59,686 INFO L226 Difference]: Without dead ends: 42489 [2022-04-18 19:09:59,686 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:09:59,687 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 546 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:59,687 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [546 Valid, 516 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 19:09:59,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42489 states. [2022-04-18 19:10:00,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42489 to 25447. [2022-04-18 19:10:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25447 states, 25404 states have (on average 2.1509211147850733) internal successors, (54642), 25446 states have internal predecessors, (54642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25447 states to 25447 states and 54642 transitions. [2022-04-18 19:10:00,129 INFO L78 Accepts]: Start accepts. Automaton has 25447 states and 54642 transitions. Word has length 31 [2022-04-18 19:10:00,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:00,129 INFO L478 AbstractCegarLoop]: Abstraction has 25447 states and 54642 transitions. [2022-04-18 19:10:00,129 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:00,129 INFO L276 IsEmpty]: Start isEmpty. Operand 25447 states and 54642 transitions. [2022-04-18 19:10:00,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:00,134 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:00,134 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:00,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-04-18 19:10:00,134 INFO L403 AbstractCegarLoop]: === Iteration 180 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:00,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:00,135 INFO L85 PathProgramCache]: Analyzing trace with hash 897202090, now seen corresponding path program 10 times [2022-04-18 19:10:00,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:00,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216186889] [2022-04-18 19:10:00,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:00,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:00,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:00,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:00,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216186889] [2022-04-18 19:10:00,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216186889] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:00,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:00,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961751703] [2022-04-18 19:10:00,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:00,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:00,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:00,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:00,314 INFO L87 Difference]: Start difference. First operand 25447 states and 54642 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:01,312 INFO L93 Difference]: Finished difference Result 42457 states and 90545 transitions. [2022-04-18 19:10:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:01,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:01,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:01,384 INFO L225 Difference]: With dead ends: 42457 [2022-04-18 19:10:01,385 INFO L226 Difference]: Without dead ends: 42457 [2022-04-18 19:10:01,385 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:01,385 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 515 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:01,385 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 525 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:01,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42457 states. [2022-04-18 19:10:01,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42457 to 25445. [2022-04-18 19:10:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25445 states, 25402 states have (on average 2.1509329974017795) internal successors, (54638), 25444 states have internal predecessors, (54638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:01,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25445 states to 25445 states and 54638 transitions. [2022-04-18 19:10:01,841 INFO L78 Accepts]: Start accepts. Automaton has 25445 states and 54638 transitions. Word has length 31 [2022-04-18 19:10:01,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:01,841 INFO L478 AbstractCegarLoop]: Abstraction has 25445 states and 54638 transitions. [2022-04-18 19:10:01,841 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:01,841 INFO L276 IsEmpty]: Start isEmpty. Operand 25445 states and 54638 transitions. [2022-04-18 19:10:01,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:01,845 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:01,845 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:01,845 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-04-18 19:10:01,845 INFO L403 AbstractCegarLoop]: === Iteration 181 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:01,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:01,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1230264296, now seen corresponding path program 11 times [2022-04-18 19:10:01,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:01,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675845332] [2022-04-18 19:10:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:01,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:02,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:02,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675845332] [2022-04-18 19:10:02,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675845332] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:02,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:02,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:02,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003829935] [2022-04-18 19:10:02,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:02,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:02,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:02,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:02,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:02,017 INFO L87 Difference]: Start difference. First operand 25445 states and 54638 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:03,353 INFO L93 Difference]: Finished difference Result 42403 states and 90437 transitions. [2022-04-18 19:10:03,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:10:03,353 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:03,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:03,426 INFO L225 Difference]: With dead ends: 42403 [2022-04-18 19:10:03,427 INFO L226 Difference]: Without dead ends: 42403 [2022-04-18 19:10:03,427 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2022-04-18 19:10:03,427 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 499 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:03,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 561 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:10:03,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42403 states. [2022-04-18 19:10:03,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42403 to 25401. [2022-04-18 19:10:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25401 states, 25358 states have (on average 2.15115545390015) internal successors, (54549), 25400 states have internal predecessors, (54549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:03,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25401 states to 25401 states and 54549 transitions. [2022-04-18 19:10:03,896 INFO L78 Accepts]: Start accepts. Automaton has 25401 states and 54549 transitions. Word has length 31 [2022-04-18 19:10:03,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:03,896 INFO L478 AbstractCegarLoop]: Abstraction has 25401 states and 54549 transitions. [2022-04-18 19:10:03,896 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:03,896 INFO L276 IsEmpty]: Start isEmpty. Operand 25401 states and 54549 transitions. [2022-04-18 19:10:03,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:03,901 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:03,901 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:03,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-04-18 19:10:03,901 INFO L403 AbstractCegarLoop]: === Iteration 182 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash 659733590, now seen corresponding path program 40 times [2022-04-18 19:10:03,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:03,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464990721] [2022-04-18 19:10:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:03,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:04,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:04,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464990721] [2022-04-18 19:10:04,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464990721] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:04,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:04,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:10:04,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053412056] [2022-04-18 19:10:04,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:04,320 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:10:04,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:04,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:10:04,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:10:04,321 INFO L87 Difference]: Start difference. First operand 25401 states and 54549 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:07,107 INFO L93 Difference]: Finished difference Result 27984 states and 59625 transitions. [2022-04-18 19:10:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:10:07,107 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:07,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:07,157 INFO L225 Difference]: With dead ends: 27984 [2022-04-18 19:10:07,158 INFO L226 Difference]: Without dead ends: 27984 [2022-04-18 19:10:07,158 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=251, Invalid=679, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:10:07,158 INFO L913 BasicCegarLoop]: 95 mSDtfsCounter, 351 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:07,158 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 520 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:10:07,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27984 states. [2022-04-18 19:10:07,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27984 to 25143. [2022-04-18 19:10:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25143 states, 25100 states have (on average 2.148167330677291) internal successors, (53919), 25142 states have internal predecessors, (53919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:07,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25143 states to 25143 states and 53919 transitions. [2022-04-18 19:10:07,630 INFO L78 Accepts]: Start accepts. Automaton has 25143 states and 53919 transitions. Word has length 31 [2022-04-18 19:10:07,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:07,630 INFO L478 AbstractCegarLoop]: Abstraction has 25143 states and 53919 transitions. [2022-04-18 19:10:07,630 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 25143 states and 53919 transitions. [2022-04-18 19:10:07,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:07,634 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:07,635 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:07,635 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-04-18 19:10:07,635 INFO L403 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:07,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:07,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1584598357, now seen corresponding path program 62 times [2022-04-18 19:10:07,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:07,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473174651] [2022-04-18 19:10:07,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:07,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:08,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:08,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:08,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473174651] [2022-04-18 19:10:08,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473174651] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:08,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:08,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:10:08,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057905600] [2022-04-18 19:10:08,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:08,242 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:10:08,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:08,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:10:08,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:10:08,243 INFO L87 Difference]: Start difference. First operand 25143 states and 53919 transitions. Second operand has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:10,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:10,900 INFO L93 Difference]: Finished difference Result 26964 states and 57551 transitions. [2022-04-18 19:10:10,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:10:10,901 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:10,946 INFO L225 Difference]: With dead ends: 26964 [2022-04-18 19:10:10,946 INFO L226 Difference]: Without dead ends: 26964 [2022-04-18 19:10:10,946 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=705, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:10:10,947 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 611 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 3893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:10,947 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 697 Invalid, 3893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3781 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:10:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26964 states. [2022-04-18 19:10:11,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26964 to 25136. [2022-04-18 19:10:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25136 states, 25093 states have (on average 2.147969553261866) internal successors, (53899), 25135 states have internal predecessors, (53899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:11,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25136 states to 25136 states and 53899 transitions. [2022-04-18 19:10:11,323 INFO L78 Accepts]: Start accepts. Automaton has 25136 states and 53899 transitions. Word has length 31 [2022-04-18 19:10:11,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:11,323 INFO L478 AbstractCegarLoop]: Abstraction has 25136 states and 53899 transitions. [2022-04-18 19:10:11,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:11,323 INFO L276 IsEmpty]: Start isEmpty. Operand 25136 states and 53899 transitions. [2022-04-18 19:10:11,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:11,327 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:11,327 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:11,327 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-04-18 19:10:11,327 INFO L403 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:11,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:11,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1806091723, now seen corresponding path program 62 times [2022-04-18 19:10:11,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:11,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929121807] [2022-04-18 19:10:11,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:11,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:12,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:12,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929121807] [2022-04-18 19:10:12,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929121807] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:12,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:12,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:10:12,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528307921] [2022-04-18 19:10:12,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:12,631 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:10:12,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:12,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:10:12,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:10:12,632 INFO L87 Difference]: Start difference. First operand 25136 states and 53899 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:14,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:14,048 INFO L93 Difference]: Finished difference Result 30465 states and 64689 transitions. [2022-04-18 19:10:14,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:10:14,048 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:14,097 INFO L225 Difference]: With dead ends: 30465 [2022-04-18 19:10:14,097 INFO L226 Difference]: Without dead ends: 30465 [2022-04-18 19:10:14,097 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2022-04-18 19:10:14,098 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 710 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:14,098 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 449 Invalid, 2201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:10:14,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30465 states. [2022-04-18 19:10:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30465 to 25153. [2022-04-18 19:10:14,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25153 states, 25114 states have (on average 2.1466910886358206) internal successors, (53912), 25152 states have internal predecessors, (53912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:14,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25153 states to 25153 states and 53912 transitions. [2022-04-18 19:10:14,575 INFO L78 Accepts]: Start accepts. Automaton has 25153 states and 53912 transitions. Word has length 31 [2022-04-18 19:10:14,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:14,575 INFO L478 AbstractCegarLoop]: Abstraction has 25153 states and 53912 transitions. [2022-04-18 19:10:14,575 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 25153 states and 53912 transitions. [2022-04-18 19:10:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:14,581 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:14,581 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:14,581 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-04-18 19:10:14,581 INFO L403 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1631699263, now seen corresponding path program 63 times [2022-04-18 19:10:14,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:14,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272971913] [2022-04-18 19:10:14,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:15,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:15,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272971913] [2022-04-18 19:10:15,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272971913] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:15,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:15,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:10:15,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732010868] [2022-04-18 19:10:15,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:15,657 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:10:15,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:15,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:10:15,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:10:15,657 INFO L87 Difference]: Start difference. First operand 25153 states and 53912 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:16,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:16,998 INFO L93 Difference]: Finished difference Result 30381 states and 64513 transitions. [2022-04-18 19:10:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:10:16,999 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:16,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:17,048 INFO L225 Difference]: With dead ends: 30381 [2022-04-18 19:10:17,048 INFO L226 Difference]: Without dead ends: 30381 [2022-04-18 19:10:17,048 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:10:17,049 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 598 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:17,049 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [598 Valid, 449 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:10:17,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30381 states. [2022-04-18 19:10:17,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30381 to 25141. [2022-04-18 19:10:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25141 states, 25102 states have (on average 2.1466417018564257) internal successors, (53885), 25140 states have internal predecessors, (53885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:17,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25141 states to 25141 states and 53885 transitions. [2022-04-18 19:10:17,418 INFO L78 Accepts]: Start accepts. Automaton has 25141 states and 53885 transitions. Word has length 31 [2022-04-18 19:10:17,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:17,418 INFO L478 AbstractCegarLoop]: Abstraction has 25141 states and 53885 transitions. [2022-04-18 19:10:17,418 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 25141 states and 53885 transitions. [2022-04-18 19:10:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:17,422 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:17,422 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:17,423 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-04-18 19:10:17,423 INFO L403 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:17,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2057658453, now seen corresponding path program 64 times [2022-04-18 19:10:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:17,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424828324] [2022-04-18 19:10:17,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:17,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:18,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:18,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424828324] [2022-04-18 19:10:18,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424828324] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:18,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:18,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:10:18,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835528452] [2022-04-18 19:10:18,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:18,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:10:18,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:10:18,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:10:18,334 INFO L87 Difference]: Start difference. First operand 25141 states and 53885 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:19,581 INFO L93 Difference]: Finished difference Result 30705 states and 65161 transitions. [2022-04-18 19:10:19,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:10:19,582 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:19,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:19,632 INFO L225 Difference]: With dead ends: 30705 [2022-04-18 19:10:19,632 INFO L226 Difference]: Without dead ends: 30705 [2022-04-18 19:10:19,632 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:10:19,632 INFO L913 BasicCegarLoop]: 157 mSDtfsCounter, 586 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:19,633 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 446 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:10:19,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30705 states. [2022-04-18 19:10:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30705 to 25129. [2022-04-18 19:10:19,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25129 states, 25090 states have (on average 2.146592267835791) internal successors, (53858), 25128 states have internal predecessors, (53858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:20,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25129 states to 25129 states and 53858 transitions. [2022-04-18 19:10:20,138 INFO L78 Accepts]: Start accepts. Automaton has 25129 states and 53858 transitions. Word has length 31 [2022-04-18 19:10:20,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:20,138 INFO L478 AbstractCegarLoop]: Abstraction has 25129 states and 53858 transitions. [2022-04-18 19:10:20,138 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:20,139 INFO L276 IsEmpty]: Start isEmpty. Operand 25129 states and 53858 transitions. [2022-04-18 19:10:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:20,142 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:20,142 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:20,142 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-04-18 19:10:20,143 INFO L403 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:20,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:20,144 INFO L85 PathProgramCache]: Analyzing trace with hash -914368511, now seen corresponding path program 65 times [2022-04-18 19:10:20,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:20,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601766014] [2022-04-18 19:10:20,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:20,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:20,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:20,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:20,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601766014] [2022-04-18 19:10:20,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601766014] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:20,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:20,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-04-18 19:10:20,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968955254] [2022-04-18 19:10:20,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:20,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-04-18 19:10:20,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:20,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-04-18 19:10:20,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:10:20,612 INFO L87 Difference]: Start difference. First operand 25129 states and 53858 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:22,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:22,718 INFO L93 Difference]: Finished difference Result 31878 states and 67850 transitions. [2022-04-18 19:10:22,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:10:22,719 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:22,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:22,770 INFO L225 Difference]: With dead ends: 31878 [2022-04-18 19:10:22,770 INFO L226 Difference]: Without dead ends: 31878 [2022-04-18 19:10:22,770 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=253, Invalid=677, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:10:22,771 INFO L913 BasicCegarLoop]: 116 mSDtfsCounter, 418 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 3180 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 3490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 3180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:22,771 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 619 Invalid, 3490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 3180 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:10:22,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31878 states. [2022-04-18 19:10:23,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31878 to 25271. [2022-04-18 19:10:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25271 states, 25232 states have (on average 2.1463221306277744) internal successors, (54156), 25270 states have internal predecessors, (54156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:23,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25271 states to 25271 states and 54156 transitions. [2022-04-18 19:10:23,172 INFO L78 Accepts]: Start accepts. Automaton has 25271 states and 54156 transitions. Word has length 31 [2022-04-18 19:10:23,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:23,172 INFO L478 AbstractCegarLoop]: Abstraction has 25271 states and 54156 transitions. [2022-04-18 19:10:23,172 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 25271 states and 54156 transitions. [2022-04-18 19:10:23,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:23,177 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:23,177 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:23,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-04-18 19:10:23,177 INFO L403 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:23,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:23,177 INFO L85 PathProgramCache]: Analyzing trace with hash 679977061, now seen corresponding path program 66 times [2022-04-18 19:10:23,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:23,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021831982] [2022-04-18 19:10:23,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:23,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:23,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:23,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021831982] [2022-04-18 19:10:23,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021831982] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:23,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:23,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:23,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837754301] [2022-04-18 19:10:23,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:23,422 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:23,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:23,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:23,423 INFO L87 Difference]: Start difference. First operand 25271 states and 54156 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:24,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:24,567 INFO L93 Difference]: Finished difference Result 29363 states and 62481 transitions. [2022-04-18 19:10:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:24,568 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:24,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:24,615 INFO L225 Difference]: With dead ends: 29363 [2022-04-18 19:10:24,615 INFO L226 Difference]: Without dead ends: 29363 [2022-04-18 19:10:24,616 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:24,616 INFO L913 BasicCegarLoop]: 158 mSDtfsCounter, 493 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:24,616 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [493 Valid, 448 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:10:24,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29363 states. [2022-04-18 19:10:24,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29363 to 24522. [2022-04-18 19:10:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24522 states, 24485 states have (on average 2.1484582397386154) internal successors, (52605), 24521 states have internal predecessors, (52605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:24,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24522 states to 24522 states and 52605 transitions. [2022-04-18 19:10:24,952 INFO L78 Accepts]: Start accepts. Automaton has 24522 states and 52605 transitions. Word has length 31 [2022-04-18 19:10:24,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:24,953 INFO L478 AbstractCegarLoop]: Abstraction has 24522 states and 52605 transitions. [2022-04-18 19:10:24,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:24,953 INFO L276 IsEmpty]: Start isEmpty. Operand 24522 states and 52605 transitions. [2022-04-18 19:10:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:24,957 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:24,957 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:24,957 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-04-18 19:10:24,957 INFO L403 AbstractCegarLoop]: === Iteration 189 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:24,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:24,957 INFO L85 PathProgramCache]: Analyzing trace with hash 635963938, now seen corresponding path program 12 times [2022-04-18 19:10:24,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:24,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749003024] [2022-04-18 19:10:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:24,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:25,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:25,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:25,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749003024] [2022-04-18 19:10:25,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749003024] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:25,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:25,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:25,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753247168] [2022-04-18 19:10:25,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:25,146 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:25,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:25,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:25,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:25,147 INFO L87 Difference]: Start difference. First operand 24522 states and 52605 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:26,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:26,129 INFO L93 Difference]: Finished difference Result 28581 states and 60894 transitions. [2022-04-18 19:10:26,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:26,130 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:26,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:26,264 INFO L225 Difference]: With dead ends: 28581 [2022-04-18 19:10:26,264 INFO L226 Difference]: Without dead ends: 28581 [2022-04-18 19:10:26,264 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:26,264 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 533 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:26,265 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 441 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28581 states. [2022-04-18 19:10:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28581 to 22235. [2022-04-18 19:10:26,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22235 states, 22198 states have (on average 2.145959095414001) internal successors, (47636), 22234 states have internal predecessors, (47636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22235 states to 22235 states and 47636 transitions. [2022-04-18 19:10:26,558 INFO L78 Accepts]: Start accepts. Automaton has 22235 states and 47636 transitions. Word has length 31 [2022-04-18 19:10:26,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:26,558 INFO L478 AbstractCegarLoop]: Abstraction has 22235 states and 47636 transitions. [2022-04-18 19:10:26,558 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 22235 states and 47636 transitions. [2022-04-18 19:10:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:26,562 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:26,562 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:26,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-04-18 19:10:26,563 INFO L403 AbstractCegarLoop]: === Iteration 190 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:26,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1497190368, now seen corresponding path program 13 times [2022-04-18 19:10:26,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:26,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795406947] [2022-04-18 19:10:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:26,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:26,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:26,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795406947] [2022-04-18 19:10:26,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795406947] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:26,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:26,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:26,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482300473] [2022-04-18 19:10:26,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:26,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:26,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:26,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:26,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:26,737 INFO L87 Difference]: Start difference. First operand 22235 states and 47636 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:27,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:27,631 INFO L93 Difference]: Finished difference Result 26897 states and 57239 transitions. [2022-04-18 19:10:27,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:27,631 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:27,674 INFO L225 Difference]: With dead ends: 26897 [2022-04-18 19:10:27,674 INFO L226 Difference]: Without dead ends: 26897 [2022-04-18 19:10:27,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:27,674 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 444 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:27,675 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 433 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:27,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26897 states. [2022-04-18 19:10:27,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26897 to 22236. [2022-04-18 19:10:27,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22236 states, 22199 states have (on average 2.1459525203838012) internal successors, (47638), 22235 states have internal predecessors, (47638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22236 states to 22236 states and 47638 transitions. [2022-04-18 19:10:27,977 INFO L78 Accepts]: Start accepts. Automaton has 22236 states and 47638 transitions. Word has length 31 [2022-04-18 19:10:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:27,977 INFO L478 AbstractCegarLoop]: Abstraction has 22236 states and 47638 transitions. [2022-04-18 19:10:27,978 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 22236 states and 47638 transitions. [2022-04-18 19:10:27,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:27,981 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:27,981 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:27,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-04-18 19:10:27,982 INFO L403 AbstractCegarLoop]: === Iteration 191 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:27,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:27,982 INFO L85 PathProgramCache]: Analyzing trace with hash -621071104, now seen corresponding path program 14 times [2022-04-18 19:10:27,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:27,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166976840] [2022-04-18 19:10:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:27,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:28,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:28,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166976840] [2022-04-18 19:10:28,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166976840] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:28,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:28,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:28,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060070226] [2022-04-18 19:10:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:28,161 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:28,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:28,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:28,161 INFO L87 Difference]: Start difference. First operand 22236 states and 47638 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:29,097 INFO L93 Difference]: Finished difference Result 26865 states and 57175 transitions. [2022-04-18 19:10:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:29,099 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:29,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:29,144 INFO L225 Difference]: With dead ends: 26865 [2022-04-18 19:10:29,144 INFO L226 Difference]: Without dead ends: 26865 [2022-04-18 19:10:29,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:29,144 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 409 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 1450 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:29,144 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 450 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1450 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:29,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26865 states. [2022-04-18 19:10:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26865 to 22237. [2022-04-18 19:10:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22237 states, 22200 states have (on average 2.145945945945946) internal successors, (47640), 22236 states have internal predecessors, (47640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:29,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22237 states to 22237 states and 47640 transitions. [2022-04-18 19:10:29,467 INFO L78 Accepts]: Start accepts. Automaton has 22237 states and 47640 transitions. Word has length 31 [2022-04-18 19:10:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:29,467 INFO L478 AbstractCegarLoop]: Abstraction has 22237 states and 47640 transitions. [2022-04-18 19:10:29,467 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:29,467 INFO L276 IsEmpty]: Start isEmpty. Operand 22237 states and 47640 transitions. [2022-04-18 19:10:29,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:29,471 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:29,471 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:29,472 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-04-18 19:10:29,472 INFO L403 AbstractCegarLoop]: === Iteration 192 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:29,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:29,472 INFO L85 PathProgramCache]: Analyzing trace with hash -288008898, now seen corresponding path program 15 times [2022-04-18 19:10:29,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:29,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308480311] [2022-04-18 19:10:29,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:29,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:29,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:29,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308480311] [2022-04-18 19:10:29,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308480311] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:29,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:29,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:29,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517583040] [2022-04-18 19:10:29,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:29,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:29,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:29,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:29,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:29,646 INFO L87 Difference]: Start difference. First operand 22237 states and 47640 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:30,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:30,945 INFO L93 Difference]: Finished difference Result 26811 states and 57067 transitions. [2022-04-18 19:10:30,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:10:30,945 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:30,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:30,992 INFO L225 Difference]: With dead ends: 26811 [2022-04-18 19:10:30,992 INFO L226 Difference]: Without dead ends: 26811 [2022-04-18 19:10:30,993 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2022-04-18 19:10:30,993 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 486 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 2255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:30,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 467 Invalid, 2255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 19:10:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26811 states. [2022-04-18 19:10:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26811 to 22198. [2022-04-18 19:10:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22198 states, 22161 states have (on average 2.146202788682821) internal successors, (47562), 22197 states have internal predecessors, (47562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22198 states to 22198 states and 47562 transitions. [2022-04-18 19:10:31,311 INFO L78 Accepts]: Start accepts. Automaton has 22198 states and 47562 transitions. Word has length 31 [2022-04-18 19:10:31,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:31,311 INFO L478 AbstractCegarLoop]: Abstraction has 22198 states and 47562 transitions. [2022-04-18 19:10:31,311 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:31,312 INFO L276 IsEmpty]: Start isEmpty. Operand 22198 states and 47562 transitions. [2022-04-18 19:10:31,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:31,315 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:31,315 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:31,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-04-18 19:10:31,316 INFO L403 AbstractCegarLoop]: === Iteration 193 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:31,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:31,316 INFO L85 PathProgramCache]: Analyzing trace with hash 48199532, now seen corresponding path program 16 times [2022-04-18 19:10:31,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:31,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209726390] [2022-04-18 19:10:31,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:31,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:31,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:31,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209726390] [2022-04-18 19:10:31,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209726390] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:31,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:31,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:31,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990007661] [2022-04-18 19:10:31,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:31,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:31,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:31,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:31,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:31,499 INFO L87 Difference]: Start difference. First operand 22198 states and 47562 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:32,392 INFO L93 Difference]: Finished difference Result 22852 states and 48994 transitions. [2022-04-18 19:10:32,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:32,392 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:32,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:32,426 INFO L225 Difference]: With dead ends: 22852 [2022-04-18 19:10:32,427 INFO L226 Difference]: Without dead ends: 22852 [2022-04-18 19:10:32,427 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:32,427 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 387 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:32,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 293 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:32,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22852 states. [2022-04-18 19:10:32,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22852 to 22198. [2022-04-18 19:10:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22198 states, 22161 states have (on average 2.146202788682821) internal successors, (47562), 22197 states have internal predecessors, (47562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22198 states to 22198 states and 47562 transitions. [2022-04-18 19:10:32,709 INFO L78 Accepts]: Start accepts. Automaton has 22198 states and 47562 transitions. Word has length 31 [2022-04-18 19:10:32,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:32,709 INFO L478 AbstractCegarLoop]: Abstraction has 22198 states and 47562 transitions. [2022-04-18 19:10:32,709 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 22198 states and 47562 transitions. [2022-04-18 19:10:32,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:32,713 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:32,713 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:32,713 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-04-18 19:10:32,713 INFO L403 AbstractCegarLoop]: === Iteration 194 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:32,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:32,713 INFO L85 PathProgramCache]: Analyzing trace with hash 479276476, now seen corresponding path program 17 times [2022-04-18 19:10:32,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:32,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181596630] [2022-04-18 19:10:32,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:32,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:32,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:32,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181596630] [2022-04-18 19:10:32,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181596630] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:32,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:32,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:32,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740668470] [2022-04-18 19:10:32,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:32,899 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:32,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:32,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:32,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:32,900 INFO L87 Difference]: Start difference. First operand 22198 states and 47562 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:33,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:33,988 INFO L93 Difference]: Finished difference Result 22870 states and 49030 transitions. [2022-04-18 19:10:33,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-18 19:10:33,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:33,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:34,025 INFO L225 Difference]: With dead ends: 22870 [2022-04-18 19:10:34,025 INFO L226 Difference]: Without dead ends: 22870 [2022-04-18 19:10:34,026 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:10:34,026 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 369 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 1708 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:34,026 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 294 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1708 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 19:10:34,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22870 states. [2022-04-18 19:10:34,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22870 to 22198. [2022-04-18 19:10:34,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22198 states, 22161 states have (on average 2.146202788682821) internal successors, (47562), 22197 states have internal predecessors, (47562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22198 states to 22198 states and 47562 transitions. [2022-04-18 19:10:34,399 INFO L78 Accepts]: Start accepts. Automaton has 22198 states and 47562 transitions. Word has length 31 [2022-04-18 19:10:34,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:34,399 INFO L478 AbstractCegarLoop]: Abstraction has 22198 states and 47562 transitions. [2022-04-18 19:10:34,399 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 22198 states and 47562 transitions. [2022-04-18 19:10:34,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:34,403 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:34,403 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:34,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-04-18 19:10:34,403 INFO L403 AbstractCegarLoop]: === Iteration 195 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:34,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:34,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1844340012, now seen corresponding path program 18 times [2022-04-18 19:10:34,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:34,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007318682] [2022-04-18 19:10:34,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:34,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:34,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:34,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007318682] [2022-04-18 19:10:34,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007318682] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:34,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:34,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:34,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847709675] [2022-04-18 19:10:34,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:34,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:34,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:34,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:34,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:34,587 INFO L87 Difference]: Start difference. First operand 22198 states and 47562 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:35,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:35,485 INFO L93 Difference]: Finished difference Result 22910 states and 49110 transitions. [2022-04-18 19:10:35,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:35,485 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:35,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:35,521 INFO L225 Difference]: With dead ends: 22910 [2022-04-18 19:10:35,521 INFO L226 Difference]: Without dead ends: 22910 [2022-04-18 19:10:35,522 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:35,522 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 333 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:35,522 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 280 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:35,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22910 states. [2022-04-18 19:10:35,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22910 to 22199. [2022-04-18 19:10:35,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22199 states, 22162 states have (on average 2.146196191679451) internal successors, (47564), 22198 states have internal predecessors, (47564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22199 states to 22199 states and 47564 transitions. [2022-04-18 19:10:35,852 INFO L78 Accepts]: Start accepts. Automaton has 22199 states and 47564 transitions. Word has length 31 [2022-04-18 19:10:35,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:35,852 INFO L478 AbstractCegarLoop]: Abstraction has 22199 states and 47564 transitions. [2022-04-18 19:10:35,852 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 22199 states and 47564 transitions. [2022-04-18 19:10:35,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:35,856 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:35,856 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:35,856 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-04-18 19:10:35,856 INFO L403 AbstractCegarLoop]: === Iteration 196 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:35,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:35,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2117565078, now seen corresponding path program 19 times [2022-04-18 19:10:35,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:35,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907824176] [2022-04-18 19:10:35,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:35,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:36,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:36,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:36,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907824176] [2022-04-18 19:10:36,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907824176] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:36,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:36,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:36,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958307572] [2022-04-18 19:10:36,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:36,041 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:36,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:36,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:36,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:36,041 INFO L87 Difference]: Start difference. First operand 22199 states and 47564 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:37,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:37,003 INFO L93 Difference]: Finished difference Result 22874 states and 49038 transitions. [2022-04-18 19:10:37,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:10:37,004 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:37,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:37,038 INFO L225 Difference]: With dead ends: 22874 [2022-04-18 19:10:37,038 INFO L226 Difference]: Without dead ends: 22874 [2022-04-18 19:10:37,038 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2022-04-18 19:10:37,038 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 331 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:37,039 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 286 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:37,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22874 states. [2022-04-18 19:10:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22874 to 22198. [2022-04-18 19:10:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22198 states, 22161 states have (on average 2.146202788682821) internal successors, (47562), 22197 states have internal predecessors, (47562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22198 states to 22198 states and 47562 transitions. [2022-04-18 19:10:37,329 INFO L78 Accepts]: Start accepts. Automaton has 22198 states and 47562 transitions. Word has length 31 [2022-04-18 19:10:37,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:37,329 INFO L478 AbstractCegarLoop]: Abstraction has 22198 states and 47562 transitions. [2022-04-18 19:10:37,329 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 22198 states and 47562 transitions. [2022-04-18 19:10:37,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:37,333 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:37,333 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:37,333 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-04-18 19:10:37,333 INFO L403 AbstractCegarLoop]: === Iteration 197 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:37,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1369149444, now seen corresponding path program 20 times [2022-04-18 19:10:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:37,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542407214] [2022-04-18 19:10:37,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:37,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:37,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:37,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542407214] [2022-04-18 19:10:37,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542407214] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:37,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:37,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:37,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397077748] [2022-04-18 19:10:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:37,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:37,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:37,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:37,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:37,514 INFO L87 Difference]: Start difference. First operand 22198 states and 47562 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:38,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:38,456 INFO L93 Difference]: Finished difference Result 22924 states and 49138 transitions. [2022-04-18 19:10:38,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:38,457 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:38,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:38,494 INFO L225 Difference]: With dead ends: 22924 [2022-04-18 19:10:38,495 INFO L226 Difference]: Without dead ends: 22924 [2022-04-18 19:10:38,495 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:38,495 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 313 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:38,495 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 266 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:38,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22924 states. [2022-04-18 19:10:38,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22924 to 22196. [2022-04-18 19:10:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22196 states, 22159 states have (on average 2.146215984475834) internal successors, (47558), 22195 states have internal predecessors, (47558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:38,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22196 states to 22196 states and 47558 transitions. [2022-04-18 19:10:38,804 INFO L78 Accepts]: Start accepts. Automaton has 22196 states and 47558 transitions. Word has length 31 [2022-04-18 19:10:38,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:38,804 INFO L478 AbstractCegarLoop]: Abstraction has 22196 states and 47558 transitions. [2022-04-18 19:10:38,804 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:38,804 INFO L276 IsEmpty]: Start isEmpty. Operand 22196 states and 47558 transitions. [2022-04-18 19:10:38,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:38,808 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:38,808 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:38,808 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-04-18 19:10:38,808 INFO L403 AbstractCegarLoop]: === Iteration 198 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:38,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:38,808 INFO L85 PathProgramCache]: Analyzing trace with hash -493030180, now seen corresponding path program 21 times [2022-04-18 19:10:38,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:38,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194930169] [2022-04-18 19:10:38,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:38,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:38,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:38,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194930169] [2022-04-18 19:10:38,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194930169] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:38,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:38,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:38,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143854861] [2022-04-18 19:10:38,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:38,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:38,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:38,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:38,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:38,996 INFO L87 Difference]: Start difference. First operand 22196 states and 47558 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:39,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:39,939 INFO L93 Difference]: Finished difference Result 22898 states and 49086 transitions. [2022-04-18 19:10:39,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 19:10:39,940 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:39,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:39,975 INFO L225 Difference]: With dead ends: 22898 [2022-04-18 19:10:39,975 INFO L226 Difference]: Without dead ends: 22898 [2022-04-18 19:10:39,976 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:10:39,976 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 405 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:39,976 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 289 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:10:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22898 states. [2022-04-18 19:10:40,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22898 to 22194. [2022-04-18 19:10:40,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22194 states, 22157 states have (on average 2.146229182651081) internal successors, (47554), 22193 states have internal predecessors, (47554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22194 states to 22194 states and 47554 transitions. [2022-04-18 19:10:40,262 INFO L78 Accepts]: Start accepts. Automaton has 22194 states and 47554 transitions. Word has length 31 [2022-04-18 19:10:40,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:40,262 INFO L478 AbstractCegarLoop]: Abstraction has 22194 states and 47554 transitions. [2022-04-18 19:10:40,262 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:40,262 INFO L276 IsEmpty]: Start isEmpty. Operand 22194 states and 47554 transitions. [2022-04-18 19:10:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-04-18 19:10:40,266 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:40,266 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:40,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-04-18 19:10:40,266 INFO L403 AbstractCegarLoop]: === Iteration 199 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash -159967974, now seen corresponding path program 22 times [2022-04-18 19:10:40,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:40,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553842831] [2022-04-18 19:10:40,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:40,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:40,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:40,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553842831] [2022-04-18 19:10:40,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553842831] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:40,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:40,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-04-18 19:10:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644755716] [2022-04-18 19:10:40,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:40,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 19:10:40,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 19:10:40,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-04-18 19:10:40,445 INFO L87 Difference]: Start difference. First operand 22194 states and 47554 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:41,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:41,205 INFO L93 Difference]: Finished difference Result 22868 states and 49026 transitions. [2022-04-18 19:10:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-18 19:10:41,205 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-04-18 19:10:41,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:41,241 INFO L225 Difference]: With dead ends: 22868 [2022-04-18 19:10:41,242 INFO L226 Difference]: Without dead ends: 22868 [2022-04-18 19:10:41,242 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2022-04-18 19:10:41,242 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 310 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:41,242 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 279 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 19:10:41,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22868 states. [2022-04-18 19:10:41,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22868 to 22186. [2022-04-18 19:10:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22186 states, 22149 states have (on average 2.1462819991873223) internal successors, (47538), 22185 states have internal predecessors, (47538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22186 states to 22186 states and 47538 transitions. [2022-04-18 19:10:41,534 INFO L78 Accepts]: Start accepts. Automaton has 22186 states and 47538 transitions. Word has length 31 [2022-04-18 19:10:41,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:41,534 INFO L478 AbstractCegarLoop]: Abstraction has 22186 states and 47538 transitions. [2022-04-18 19:10:41,534 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:41,535 INFO L276 IsEmpty]: Start isEmpty. Operand 22186 states and 47538 transitions. [2022-04-18 19:10:41,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:10:41,539 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:41,539 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:41,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-04-18 19:10:41,540 INFO L403 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:41,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1415192324, now seen corresponding path program 1 times [2022-04-18 19:10:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:41,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86616471] [2022-04-18 19:10:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:41,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:41,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:41,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86616471] [2022-04-18 19:10:41,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86616471] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:41,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:41,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:10:41,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759456188] [2022-04-18 19:10:41,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:41,732 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:10:41,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:41,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:10:41,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:10:41,733 INFO L87 Difference]: Start difference. First operand 22186 states and 47538 transitions. Second operand has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:43,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:43,639 INFO L93 Difference]: Finished difference Result 34471 states and 73779 transitions. [2022-04-18 19:10:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:10:43,640 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have 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 [2022-04-18 19:10:43,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:43,699 INFO L225 Difference]: With dead ends: 34471 [2022-04-18 19:10:43,699 INFO L226 Difference]: Without dead ends: 34471 [2022-04-18 19:10:43,700 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=298, Invalid=758, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:10:43,700 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 804 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 2965 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 3029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:43,700 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 432 Invalid, 3029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2965 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:10:43,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34471 states. [2022-04-18 19:10:44,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34471 to 30002. [2022-04-18 19:10:44,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30002 states, 29965 states have (on average 2.1545135991990656) internal successors, (64560), 30001 states have internal predecessors, (64560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30002 states to 30002 states and 64560 transitions. [2022-04-18 19:10:44,171 INFO L78 Accepts]: Start accepts. Automaton has 30002 states and 64560 transitions. Word has length 32 [2022-04-18 19:10:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:44,171 INFO L478 AbstractCegarLoop]: Abstraction has 30002 states and 64560 transitions. [2022-04-18 19:10:44,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:44,171 INFO L276 IsEmpty]: Start isEmpty. Operand 30002 states and 64560 transitions. [2022-04-18 19:10:44,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:10:44,175 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:44,175 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:44,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-04-18 19:10:44,175 INFO L403 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:44,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1260577034, now seen corresponding path program 2 times [2022-04-18 19:10:44,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:44,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464559936] [2022-04-18 19:10:44,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:44,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:44,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:44,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464559936] [2022-04-18 19:10:44,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464559936] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:44,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:44,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:10:44,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217968163] [2022-04-18 19:10:44,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:44,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:10:44,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:44,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:10:44,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:10:44,577 INFO L87 Difference]: Start difference. First operand 30002 states and 64560 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) [2022-04-18 19:10:47,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:47,661 INFO L93 Difference]: Finished difference Result 34152 states and 73062 transitions. [2022-04-18 19:10:47,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:10:47,661 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 [2022-04-18 19:10:47,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:47,717 INFO L225 Difference]: With dead ends: 34152 [2022-04-18 19:10:47,717 INFO L226 Difference]: Without dead ends: 34152 [2022-04-18 19:10:47,717 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=231, Invalid=891, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:10:47,717 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 752 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 4702 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 4872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 4702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:47,717 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 958 Invalid, 4872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 4702 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:10:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34152 states. [2022-04-18 19:10:48,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34152 to 30764. [2022-04-18 19:10:48,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30764 states, 30727 states have (on average 2.15406645621115) internal successors, (66188), 30763 states have internal predecessors, (66188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:48,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30764 states to 30764 states and 66188 transitions. [2022-04-18 19:10:48,161 INFO L78 Accepts]: Start accepts. Automaton has 30764 states and 66188 transitions. Word has length 32 [2022-04-18 19:10:48,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:48,161 INFO L478 AbstractCegarLoop]: Abstraction has 30764 states and 66188 transitions. [2022-04-18 19:10:48,161 INFO L479 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) [2022-04-18 19:10:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 30764 states and 66188 transitions. [2022-04-18 19:10:48,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:10:48,166 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:48,166 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:48,166 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-04-18 19:10:48,166 INFO L403 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:48,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:48,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1647539608, now seen corresponding path program 3 times [2022-04-18 19:10:48,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:48,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307395973] [2022-04-18 19:10:48,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:48,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:48,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:48,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307395973] [2022-04-18 19:10:48,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307395973] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:48,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:48,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:10:48,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773281052] [2022-04-18 19:10:48,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:48,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:10:48,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:48,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:10:48,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:10:48,484 INFO L87 Difference]: Start difference. First operand 30764 states and 66188 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) [2022-04-18 19:10:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:51,086 INFO L93 Difference]: Finished difference Result 34903 states and 74630 transitions. [2022-04-18 19:10:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:10:51,086 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 [2022-04-18 19:10:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:51,152 INFO L225 Difference]: With dead ends: 34903 [2022-04-18 19:10:51,152 INFO L226 Difference]: Without dead ends: 34903 [2022-04-18 19:10:51,153 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:10:51,153 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 811 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 3981 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 4178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 3981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:51,153 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 945 Invalid, 4178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 3981 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:10:51,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34903 states. [2022-04-18 19:10:51,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34903 to 31024. [2022-04-18 19:10:51,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31024 states, 30987 states have (on average 2.1521605834704878) internal successors, (66689), 31023 states have internal predecessors, (66689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:51,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31024 states to 31024 states and 66689 transitions. [2022-04-18 19:10:51,627 INFO L78 Accepts]: Start accepts. Automaton has 31024 states and 66689 transitions. Word has length 32 [2022-04-18 19:10:51,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:51,627 INFO L478 AbstractCegarLoop]: Abstraction has 31024 states and 66689 transitions. [2022-04-18 19:10:51,627 INFO L479 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) [2022-04-18 19:10:51,627 INFO L276 IsEmpty]: Start isEmpty. Operand 31024 states and 66689 transitions. [2022-04-18 19:10:51,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:10:51,631 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:51,631 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:51,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-04-18 19:10:51,632 INFO L403 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:51,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1595017064, now seen corresponding path program 4 times [2022-04-18 19:10:51,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:51,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006810528] [2022-04-18 19:10:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:51,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:52,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:52,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:52,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006810528] [2022-04-18 19:10:52,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006810528] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:52,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:52,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:10:52,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196893336] [2022-04-18 19:10:52,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:52,064 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:10:52,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:52,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:10:52,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:10:52,064 INFO L87 Difference]: Start difference. First operand 31024 states and 66689 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) [2022-04-18 19:10:54,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:54,864 INFO L93 Difference]: Finished difference Result 34134 states and 72764 transitions. [2022-04-18 19:10:54,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:10:54,864 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 [2022-04-18 19:10:54,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:54,920 INFO L225 Difference]: With dead ends: 34134 [2022-04-18 19:10:54,920 INFO L226 Difference]: Without dead ends: 34134 [2022-04-18 19:10:54,920 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:10:54,920 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 795 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 3923 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 4074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 3923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:54,920 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 1147 Invalid, 4074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 3923 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:10:54,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34134 states. [2022-04-18 19:10:55,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34134 to 31147. [2022-04-18 19:10:55,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31147 states, 31110 states have (on average 2.152105432336869) internal successors, (66952), 31146 states have internal predecessors, (66952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:55,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31147 states to 31147 states and 66952 transitions. [2022-04-18 19:10:55,407 INFO L78 Accepts]: Start accepts. Automaton has 31147 states and 66952 transitions. Word has length 32 [2022-04-18 19:10:55,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:55,407 INFO L478 AbstractCegarLoop]: Abstraction has 31147 states and 66952 transitions. [2022-04-18 19:10:55,408 INFO L479 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) [2022-04-18 19:10:55,408 INFO L276 IsEmpty]: Start isEmpty. Operand 31147 states and 66952 transitions. [2022-04-18 19:10:55,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:10:55,412 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:55,412 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:55,412 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-04-18 19:10:55,412 INFO L403 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:55,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:55,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1394130232, now seen corresponding path program 5 times [2022-04-18 19:10:55,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:55,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992260964] [2022-04-18 19:10:55,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:55,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:55,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:55,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:55,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992260964] [2022-04-18 19:10:55,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992260964] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:55,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:55,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:55,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944066981] [2022-04-18 19:10:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:55,752 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:55,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:55,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:55,752 INFO L87 Difference]: Start difference. First operand 31147 states and 66952 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) [2022-04-18 19:10:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:57,505 INFO L93 Difference]: Finished difference Result 34131 states and 73084 transitions. [2022-04-18 19:10:57,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-18 19:10:57,506 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 [2022-04-18 19:10:57,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:57,561 INFO L225 Difference]: With dead ends: 34131 [2022-04-18 19:10:57,561 INFO L226 Difference]: Without dead ends: 34131 [2022-04-18 19:10:57,561 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-04-18 19:10:57,561 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 335 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 3430 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 3454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:57,562 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 863 Invalid, 3454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3430 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:10:57,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34131 states. [2022-04-18 19:10:57,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34131 to 31504. [2022-04-18 19:10:57,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31504 states, 31467 states have (on average 2.1510153494136715) internal successors, (67686), 31503 states have internal predecessors, (67686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31504 states to 31504 states and 67686 transitions. [2022-04-18 19:10:58,176 INFO L78 Accepts]: Start accepts. Automaton has 31504 states and 67686 transitions. Word has length 32 [2022-04-18 19:10:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:58,176 INFO L478 AbstractCegarLoop]: Abstraction has 31504 states and 67686 transitions. [2022-04-18 19:10:58,176 INFO L479 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) [2022-04-18 19:10:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 31504 states and 67686 transitions. [2022-04-18 19:10:58,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:10:58,180 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:58,180 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:10:58,180 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-04-18 19:10:58,180 INFO L403 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:10:58,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1747153582, now seen corresponding path program 6 times [2022-04-18 19:10:58,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:58,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811861335] [2022-04-18 19:10:58,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:58,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:58,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:58,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811861335] [2022-04-18 19:10:58,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811861335] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:58,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:58,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:10:58,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032247631] [2022-04-18 19:10:58,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:58,669 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:10:58,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:58,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:10:58,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:10:58,670 INFO L87 Difference]: Start difference. First operand 31504 states and 67686 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) [2022-04-18 19:11:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:01,124 INFO L93 Difference]: Finished difference Result 33837 states and 72206 transitions. [2022-04-18 19:11:01,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:11:01,125 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 [2022-04-18 19:11:01,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:01,181 INFO L225 Difference]: With dead ends: 33837 [2022-04-18 19:11:01,182 INFO L226 Difference]: Without dead ends: 33837 [2022-04-18 19:11:01,182 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:01,182 INFO L913 BasicCegarLoop]: 175 mSDtfsCounter, 647 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 3695 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 3695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:01,182 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 1074 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:11:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33837 states. [2022-04-18 19:11:01,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33837 to 31329. [2022-04-18 19:11:01,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31329 states, 31292 states have (on average 2.1517640291448292) internal successors, (67333), 31328 states have internal predecessors, (67333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:01,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31329 states to 31329 states and 67333 transitions. [2022-04-18 19:11:01,622 INFO L78 Accepts]: Start accepts. Automaton has 31329 states and 67333 transitions. Word has length 32 [2022-04-18 19:11:01,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:01,622 INFO L478 AbstractCegarLoop]: Abstraction has 31329 states and 67333 transitions. [2022-04-18 19:11:01,622 INFO L479 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) [2022-04-18 19:11:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand 31329 states and 67333 transitions. [2022-04-18 19:11:01,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:01,627 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:01,627 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:01,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-04-18 19:11:01,627 INFO L403 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:01,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:01,628 INFO L85 PathProgramCache]: Analyzing trace with hash 748561610, now seen corresponding path program 7 times [2022-04-18 19:11:01,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:01,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821074222] [2022-04-18 19:11:01,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:01,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:02,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:02,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821074222] [2022-04-18 19:11:02,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821074222] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:02,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:02,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:02,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512201037] [2022-04-18 19:11:02,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:02,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:02,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:02,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:02,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:02,281 INFO L87 Difference]: Start difference. First operand 31329 states and 67333 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) [2022-04-18 19:11:04,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:04,553 INFO L93 Difference]: Finished difference Result 33696 states and 71907 transitions. [2022-04-18 19:11:04,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:11:04,554 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 [2022-04-18 19:11:04,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:04,611 INFO L225 Difference]: With dead ends: 33696 [2022-04-18 19:11:04,611 INFO L226 Difference]: Without dead ends: 33696 [2022-04-18 19:11:04,611 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=819, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:11:04,611 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 532 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 3460 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 3553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:04,611 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [532 Valid, 1168 Invalid, 3553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3460 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:11:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33696 states. [2022-04-18 19:11:04,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33696 to 31327. [2022-04-18 19:11:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31327 states, 31290 states have (on average 2.151709811441355) internal successors, (67327), 31326 states have internal predecessors, (67327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:05,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31327 states to 31327 states and 67327 transitions. [2022-04-18 19:11:05,057 INFO L78 Accepts]: Start accepts. Automaton has 31327 states and 67327 transitions. Word has length 32 [2022-04-18 19:11:05,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:05,057 INFO L478 AbstractCegarLoop]: Abstraction has 31327 states and 67327 transitions. [2022-04-18 19:11:05,057 INFO L479 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) [2022-04-18 19:11:05,057 INFO L276 IsEmpty]: Start isEmpty. Operand 31327 states and 67327 transitions. [2022-04-18 19:11:05,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:05,062 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:05,062 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:05,062 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-04-18 19:11:05,062 INFO L403 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:05,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:05,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1871471138, now seen corresponding path program 8 times [2022-04-18 19:11:05,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:05,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6239587] [2022-04-18 19:11:05,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:05,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:05,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:05,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6239587] [2022-04-18 19:11:05,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6239587] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:05,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:05,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:05,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780752298] [2022-04-18 19:11:05,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:05,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:05,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:05,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:05,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:05,824 INFO L87 Difference]: Start difference. First operand 31327 states and 67327 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) [2022-04-18 19:11:07,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:07,971 INFO L93 Difference]: Finished difference Result 33689 states and 71884 transitions. [2022-04-18 19:11:07,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:11:07,972 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-04-18 19:11:07,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:08,030 INFO L225 Difference]: With dead ends: 33689 [2022-04-18 19:11:08,030 INFO L226 Difference]: Without dead ends: 33689 [2022-04-18 19:11:08,032 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:08,033 INFO L913 BasicCegarLoop]: 172 mSDtfsCounter, 514 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:08,033 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 1162 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:11:08,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33689 states. [2022-04-18 19:11:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33689 to 31280. [2022-04-18 19:11:08,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31280 states, 31243 states have (on average 2.151425919405947) internal successors, (67217), 31279 states have internal predecessors, (67217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:08,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31280 states to 31280 states and 67217 transitions. [2022-04-18 19:11:08,579 INFO L78 Accepts]: Start accepts. Automaton has 31280 states and 67217 transitions. Word has length 32 [2022-04-18 19:11:08,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:08,579 INFO L478 AbstractCegarLoop]: Abstraction has 31280 states and 67217 transitions. [2022-04-18 19:11:08,579 INFO L479 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) [2022-04-18 19:11:08,579 INFO L276 IsEmpty]: Start isEmpty. Operand 31280 states and 67217 transitions. [2022-04-18 19:11:08,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:08,584 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:08,584 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:08,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-04-18 19:11:08,584 INFO L403 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:08,586 INFO L85 PathProgramCache]: Analyzing trace with hash 10048144, now seen corresponding path program 9 times [2022-04-18 19:11:08,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:08,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171766688] [2022-04-18 19:11:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:08,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:08,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:08,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171766688] [2022-04-18 19:11:08,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171766688] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:08,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:08,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:08,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336631558] [2022-04-18 19:11:08,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:08,969 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:08,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:08,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:08,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:08,969 INFO L87 Difference]: Start difference. First operand 31280 states and 67217 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) [2022-04-18 19:11:11,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:11,624 INFO L93 Difference]: Finished difference Result 34569 states and 73954 transitions. [2022-04-18 19:11:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:11:11,624 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 [2022-04-18 19:11:11,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:11,682 INFO L225 Difference]: With dead ends: 34569 [2022-04-18 19:11:11,682 INFO L226 Difference]: Without dead ends: 34569 [2022-04-18 19:11:11,682 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=830, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:11:11,682 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 699 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 4051 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 4202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 4051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:11,682 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 825 Invalid, 4202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 4051 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:11:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34569 states. [2022-04-18 19:11:12,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34569 to 31096. [2022-04-18 19:11:12,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31096 states, 31059 states have (on average 2.152677162819151) internal successors, (66860), 31095 states have internal predecessors, (66860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31096 states to 31096 states and 66860 transitions. [2022-04-18 19:11:12,135 INFO L78 Accepts]: Start accepts. Automaton has 31096 states and 66860 transitions. Word has length 32 [2022-04-18 19:11:12,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:12,135 INFO L478 AbstractCegarLoop]: Abstraction has 31096 states and 66860 transitions. [2022-04-18 19:11:12,135 INFO L479 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) [2022-04-18 19:11:12,135 INFO L276 IsEmpty]: Start isEmpty. Operand 31096 states and 66860 transitions. [2022-04-18 19:11:12,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:12,139 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:12,139 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:12,140 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-04-18 19:11:12,140 INFO L403 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:12,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:12,140 INFO L85 PathProgramCache]: Analyzing trace with hash -548549072, now seen corresponding path program 10 times [2022-04-18 19:11:12,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:12,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937457912] [2022-04-18 19:11:12,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:12,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:12,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:12,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:12,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937457912] [2022-04-18 19:11:12,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937457912] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:12,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:12,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:12,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040319724] [2022-04-18 19:11:12,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:12,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:12,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:12,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:12,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:12,626 INFO L87 Difference]: Start difference. First operand 31096 states and 66860 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) [2022-04-18 19:11:15,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:15,611 INFO L93 Difference]: Finished difference Result 35123 states and 75099 transitions. [2022-04-18 19:11:15,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:11:15,612 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 [2022-04-18 19:11:15,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:15,673 INFO L225 Difference]: With dead ends: 35123 [2022-04-18 19:11:15,673 INFO L226 Difference]: Without dead ends: 35123 [2022-04-18 19:11:15,673 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=904, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:15,674 INFO L913 BasicCegarLoop]: 163 mSDtfsCounter, 721 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 4602 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 4792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:15,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 1046 Invalid, 4792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4602 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:11:15,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35123 states. [2022-04-18 19:11:16,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35123 to 31198. [2022-04-18 19:11:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31198 states, 31161 states have (on average 2.1523057668239147) internal successors, (67068), 31197 states have internal predecessors, (67068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:16,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31198 states to 31198 states and 67068 transitions. [2022-04-18 19:11:16,122 INFO L78 Accepts]: Start accepts. Automaton has 31198 states and 67068 transitions. Word has length 32 [2022-04-18 19:11:16,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:16,123 INFO L478 AbstractCegarLoop]: Abstraction has 31198 states and 67068 transitions. [2022-04-18 19:11:16,123 INFO L479 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) [2022-04-18 19:11:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 31198 states and 67068 transitions. [2022-04-18 19:11:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:16,127 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:16,127 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:16,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-04-18 19:11:16,127 INFO L403 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:16,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:16,128 INFO L85 PathProgramCache]: Analyzing trace with hash 838301582, now seen corresponding path program 11 times [2022-04-18 19:11:16,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:16,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159077870] [2022-04-18 19:11:16,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:16,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:16,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:16,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:16,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159077870] [2022-04-18 19:11:16,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159077870] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:16,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:16,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:16,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649043693] [2022-04-18 19:11:16,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:16,647 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:16,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:16,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:16,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:16,648 INFO L87 Difference]: Start difference. First operand 31198 states and 67068 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) [2022-04-18 19:11:19,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:19,585 INFO L93 Difference]: Finished difference Result 36130 states and 77116 transitions. [2022-04-18 19:11:19,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:11:19,586 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 [2022-04-18 19:11:19,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:19,644 INFO L225 Difference]: With dead ends: 36130 [2022-04-18 19:11:19,644 INFO L226 Difference]: Without dead ends: 36130 [2022-04-18 19:11:19,644 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=218, Invalid=904, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:19,644 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 637 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 4572 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 4572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:19,645 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [637 Valid, 1118 Invalid, 4733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 4572 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:11:19,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36130 states. [2022-04-18 19:11:20,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36130 to 31552. [2022-04-18 19:11:20,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31552 states, 31515 states have (on average 2.1509122640012692) internal successors, (67786), 31551 states have internal predecessors, (67786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31552 states to 31552 states and 67786 transitions. [2022-04-18 19:11:20,174 INFO L78 Accepts]: Start accepts. Automaton has 31552 states and 67786 transitions. Word has length 32 [2022-04-18 19:11:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:20,174 INFO L478 AbstractCegarLoop]: Abstraction has 31552 states and 67786 transitions. [2022-04-18 19:11:20,174 INFO L479 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) [2022-04-18 19:11:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 31552 states and 67786 transitions. [2022-04-18 19:11:20,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:20,179 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:20,179 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:20,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-04-18 19:11:20,179 INFO L403 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:20,181 INFO L85 PathProgramCache]: Analyzing trace with hash -214109042, now seen corresponding path program 12 times [2022-04-18 19:11:20,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:20,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583024008] [2022-04-18 19:11:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:20,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:20,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:20,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:20,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583024008] [2022-04-18 19:11:20,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583024008] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:20,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:20,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:20,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181861182] [2022-04-18 19:11:20,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:20,444 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:20,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:20,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:20,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:20,444 INFO L87 Difference]: Start difference. First operand 31552 states and 67786 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) [2022-04-18 19:11:22,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:22,395 INFO L93 Difference]: Finished difference Result 35662 states and 76260 transitions. [2022-04-18 19:11:22,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:11:22,396 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 [2022-04-18 19:11:22,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:22,457 INFO L225 Difference]: With dead ends: 35662 [2022-04-18 19:11:22,457 INFO L226 Difference]: Without dead ends: 35662 [2022-04-18 19:11:22,457 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:11:22,457 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 577 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:22,458 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 841 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:11:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35662 states. [2022-04-18 19:11:22,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35662 to 31581. [2022-04-18 19:11:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31581 states, 31544 states have (on average 2.1507101191985796) internal successors, (67842), 31580 states have internal predecessors, (67842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31581 states to 31581 states and 67842 transitions. [2022-04-18 19:11:22,939 INFO L78 Accepts]: Start accepts. Automaton has 31581 states and 67842 transitions. Word has length 32 [2022-04-18 19:11:22,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:22,939 INFO L478 AbstractCegarLoop]: Abstraction has 31581 states and 67842 transitions. [2022-04-18 19:11:22,939 INFO L479 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) [2022-04-18 19:11:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 31581 states and 67842 transitions. [2022-04-18 19:11:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:22,944 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:22,944 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:22,944 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-04-18 19:11:22,944 INFO L403 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:22,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:22,944 INFO L85 PathProgramCache]: Analyzing trace with hash -61972524, now seen corresponding path program 13 times [2022-04-18 19:11:22,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:22,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270751419] [2022-04-18 19:11:22,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:22,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:23,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:23,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:23,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270751419] [2022-04-18 19:11:23,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270751419] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:23,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:23,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:23,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303555873] [2022-04-18 19:11:23,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:23,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:23,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:23,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:23,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:23,446 INFO L87 Difference]: Start difference. First operand 31581 states and 67842 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) [2022-04-18 19:11:26,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:26,244 INFO L93 Difference]: Finished difference Result 35429 states and 75658 transitions. [2022-04-18 19:11:26,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:11:26,244 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 [2022-04-18 19:11:26,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:26,304 INFO L225 Difference]: With dead ends: 35429 [2022-04-18 19:11:26,305 INFO L226 Difference]: Without dead ends: 35429 [2022-04-18 19:11:26,305 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:26,305 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 482 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 4202 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 4202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:26,305 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 1262 Invalid, 4275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 4202 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:11:26,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35429 states. [2022-04-18 19:11:26,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35429 to 31609. [2022-04-18 19:11:26,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31609 states, 31572 states have (on average 2.150924870138097) internal successors, (67909), 31608 states have internal predecessors, (67909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31609 states to 31609 states and 67909 transitions. [2022-04-18 19:11:26,761 INFO L78 Accepts]: Start accepts. Automaton has 31609 states and 67909 transitions. Word has length 32 [2022-04-18 19:11:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:26,761 INFO L478 AbstractCegarLoop]: Abstraction has 31609 states and 67909 transitions. [2022-04-18 19:11:26,761 INFO L479 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) [2022-04-18 19:11:26,761 INFO L276 IsEmpty]: Start isEmpty. Operand 31609 states and 67909 transitions. [2022-04-18 19:11:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:26,766 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:26,766 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:26,766 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-04-18 19:11:26,766 INFO L403 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:26,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:26,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1060564496, now seen corresponding path program 14 times [2022-04-18 19:11:26,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:26,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128456406] [2022-04-18 19:11:26,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:26,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:27,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:27,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128456406] [2022-04-18 19:11:27,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128456406] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:27,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:27,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:27,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130101584] [2022-04-18 19:11:27,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:27,376 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:27,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:27,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:27,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:27,377 INFO L87 Difference]: Start difference. First operand 31609 states and 67909 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) [2022-04-18 19:11:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:29,583 INFO L93 Difference]: Finished difference Result 35475 states and 75748 transitions. [2022-04-18 19:11:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:11:29,584 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 [2022-04-18 19:11:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:29,642 INFO L225 Difference]: With dead ends: 35475 [2022-04-18 19:11:29,642 INFO L226 Difference]: Without dead ends: 35475 [2022-04-18 19:11:29,642 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:11:29,642 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 443 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 3172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:29,643 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1253 Invalid, 3172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3079 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:11:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35475 states. [2022-04-18 19:11:30,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35475 to 31607. [2022-04-18 19:11:30,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31607 states, 31570 states have (on average 2.150871080139373) internal successors, (67903), 31606 states have internal predecessors, (67903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31607 states to 31607 states and 67903 transitions. [2022-04-18 19:11:30,099 INFO L78 Accepts]: Start accepts. Automaton has 31607 states and 67903 transitions. Word has length 32 [2022-04-18 19:11:30,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:30,099 INFO L478 AbstractCegarLoop]: Abstraction has 31607 states and 67903 transitions. [2022-04-18 19:11:30,099 INFO L479 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) [2022-04-18 19:11:30,100 INFO L276 IsEmpty]: Start isEmpty. Operand 31607 states and 67903 transitions. [2022-04-18 19:11:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:30,104 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:30,104 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:30,104 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-04-18 19:11:30,104 INFO L403 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 614370052, now seen corresponding path program 15 times [2022-04-18 19:11:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:30,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607656968] [2022-04-18 19:11:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:30,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:30,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:30,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607656968] [2022-04-18 19:11:30,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607656968] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:30,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:30,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:30,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026018433] [2022-04-18 19:11:30,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:30,931 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:30,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:30,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:30,931 INFO L87 Difference]: Start difference. First operand 31607 states and 67903 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) [2022-04-18 19:11:33,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:33,069 INFO L93 Difference]: Finished difference Result 35463 states and 75720 transitions. [2022-04-18 19:11:33,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:11:33,070 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 [2022-04-18 19:11:33,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:33,126 INFO L225 Difference]: With dead ends: 35463 [2022-04-18 19:11:33,126 INFO L226 Difference]: Without dead ends: 35463 [2022-04-18 19:11:33,127 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:33,127 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 423 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 2832 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:33,127 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 1252 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2832 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:11:33,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35463 states. [2022-04-18 19:11:33,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35463 to 31563. [2022-04-18 19:11:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31563 states, 31526 states have (on average 2.1507961682420857) internal successors, (67806), 31562 states have internal predecessors, (67806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31563 states to 31563 states and 67806 transitions. [2022-04-18 19:11:33,571 INFO L78 Accepts]: Start accepts. Automaton has 31563 states and 67806 transitions. Word has length 32 [2022-04-18 19:11:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:33,571 INFO L478 AbstractCegarLoop]: Abstraction has 31563 states and 67806 transitions. [2022-04-18 19:11:33,571 INFO L479 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) [2022-04-18 19:11:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 31563 states and 67806 transitions. [2022-04-18 19:11:33,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:33,576 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:33,576 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:33,576 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-04-18 19:11:33,576 INFO L403 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:33,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:33,576 INFO L85 PathProgramCache]: Analyzing trace with hash -197126764, now seen corresponding path program 16 times [2022-04-18 19:11:33,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:33,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894723763] [2022-04-18 19:11:33,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:33,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:33,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:33,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:33,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894723763] [2022-04-18 19:11:33,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894723763] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:33,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:33,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:33,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565817917] [2022-04-18 19:11:33,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:33,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:33,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:33,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:33,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:33,965 INFO L87 Difference]: Start difference. First operand 31563 states and 67806 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) [2022-04-18 19:11:36,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:36,475 INFO L93 Difference]: Finished difference Result 36581 states and 78043 transitions. [2022-04-18 19:11:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:11:36,476 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 [2022-04-18 19:11:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:36,539 INFO L225 Difference]: With dead ends: 36581 [2022-04-18 19:11:36,539 INFO L226 Difference]: Without dead ends: 36581 [2022-04-18 19:11:36,539 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=222, Invalid=900, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:36,539 INFO L913 BasicCegarLoop]: 169 mSDtfsCounter, 783 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 3618 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 3825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 3618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:36,539 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 996 Invalid, 3825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 3618 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:11:36,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36581 states. [2022-04-18 19:11:36,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36581 to 31863. [2022-04-18 19:11:36,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31863 states, 31826 states have (on average 2.149374725067555) internal successors, (68406), 31862 states have internal predecessors, (68406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31863 states to 31863 states and 68406 transitions. [2022-04-18 19:11:37,022 INFO L78 Accepts]: Start accepts. Automaton has 31863 states and 68406 transitions. Word has length 32 [2022-04-18 19:11:37,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:37,022 INFO L478 AbstractCegarLoop]: Abstraction has 31863 states and 68406 transitions. [2022-04-18 19:11:37,023 INFO L479 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) [2022-04-18 19:11:37,023 INFO L276 IsEmpty]: Start isEmpty. Operand 31863 states and 68406 transitions. [2022-04-18 19:11:37,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:37,027 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:37,028 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:37,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-04-18 19:11:37,028 INFO L403 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:37,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1097400870, now seen corresponding path program 17 times [2022-04-18 19:11:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:37,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479614255] [2022-04-18 19:11:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:37,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:37,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479614255] [2022-04-18 19:11:37,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479614255] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:37,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:37,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:37,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145669367] [2022-04-18 19:11:37,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:37,606 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:37,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:37,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:37,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:37,606 INFO L87 Difference]: Start difference. First operand 31863 states and 68406 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) [2022-04-18 19:11:40,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:40,164 INFO L93 Difference]: Finished difference Result 35771 states and 76349 transitions. [2022-04-18 19:11:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:11:40,165 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 [2022-04-18 19:11:40,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:40,230 INFO L225 Difference]: With dead ends: 35771 [2022-04-18 19:11:40,230 INFO L226 Difference]: Without dead ends: 35771 [2022-04-18 19:11:40,230 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=883, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:40,230 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 560 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:40,230 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 1192 Invalid, 3654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:11:40,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35771 states. [2022-04-18 19:11:40,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35771 to 31890. [2022-04-18 19:11:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31890 states, 31853 states have (on average 2.1495934448874516) internal successors, (68471), 31889 states have internal predecessors, (68471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31890 states to 31890 states and 68471 transitions. [2022-04-18 19:11:40,734 INFO L78 Accepts]: Start accepts. Automaton has 31890 states and 68471 transitions. Word has length 32 [2022-04-18 19:11:40,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:40,734 INFO L478 AbstractCegarLoop]: Abstraction has 31890 states and 68471 transitions. [2022-04-18 19:11:40,734 INFO L479 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) [2022-04-18 19:11:40,734 INFO L276 IsEmpty]: Start isEmpty. Operand 31890 states and 68471 transitions. [2022-04-18 19:11:40,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:40,739 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:40,739 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:40,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-04-18 19:11:40,739 INFO L403 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:40,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2095992842, now seen corresponding path program 18 times [2022-04-18 19:11:40,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:40,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171443726] [2022-04-18 19:11:40,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:40,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:41,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:41,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171443726] [2022-04-18 19:11:41,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171443726] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:41,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:41,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:41,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356480809] [2022-04-18 19:11:41,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:41,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:41,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:41,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:41,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:41,410 INFO L87 Difference]: Start difference. First operand 31890 states and 68471 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) [2022-04-18 19:11:43,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:43,623 INFO L93 Difference]: Finished difference Result 35817 states and 76439 transitions. [2022-04-18 19:11:43,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:11:43,624 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 [2022-04-18 19:11:43,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:43,684 INFO L225 Difference]: With dead ends: 35817 [2022-04-18 19:11:43,684 INFO L226 Difference]: Without dead ends: 35817 [2022-04-18 19:11:43,684 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:11:43,684 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 457 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 3250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:43,684 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1283 Invalid, 3250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:11:43,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35817 states. [2022-04-18 19:11:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35817 to 31887. [2022-04-18 19:11:44,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31887 states, 31850 states have (on average 2.1495447409733126) internal successors, (68463), 31886 states have internal predecessors, (68463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:44,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31887 states to 31887 states and 68463 transitions. [2022-04-18 19:11:44,218 INFO L78 Accepts]: Start accepts. Automaton has 31887 states and 68463 transitions. Word has length 32 [2022-04-18 19:11:44,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:44,218 INFO L478 AbstractCegarLoop]: Abstraction has 31887 states and 68463 transitions. [2022-04-18 19:11:44,218 INFO L479 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) [2022-04-18 19:11:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 31887 states and 68463 transitions. [2022-04-18 19:11:44,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:44,223 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:44,223 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:44,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-04-18 19:11:44,223 INFO L403 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:44,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash -421058294, now seen corresponding path program 19 times [2022-04-18 19:11:44,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:44,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132733701] [2022-04-18 19:11:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:44,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:44,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:44,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132733701] [2022-04-18 19:11:44,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132733701] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:44,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:44,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:44,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798645786] [2022-04-18 19:11:44,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:44,815 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:44,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:44,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:44,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:44,815 INFO L87 Difference]: Start difference. First operand 31887 states and 68463 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) [2022-04-18 19:11:46,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:46,687 INFO L93 Difference]: Finished difference Result 35805 states and 76411 transitions. [2022-04-18 19:11:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:11:46,688 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 [2022-04-18 19:11:46,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:46,756 INFO L225 Difference]: With dead ends: 35805 [2022-04-18 19:11:46,756 INFO L226 Difference]: Without dead ends: 35805 [2022-04-18 19:11:46,756 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=234, Invalid=888, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:11:46,756 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 501 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 2448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:46,756 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 1181 Invalid, 2448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:11:46,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35805 states. [2022-04-18 19:11:47,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35805 to 31557. [2022-04-18 19:11:47,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31557 states, 31520 states have (on average 2.1508248730964468) internal successors, (67794), 31556 states have internal predecessors, (67794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31557 states to 31557 states and 67794 transitions. [2022-04-18 19:11:47,270 INFO L78 Accepts]: Start accepts. Automaton has 31557 states and 67794 transitions. Word has length 32 [2022-04-18 19:11:47,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:47,270 INFO L478 AbstractCegarLoop]: Abstraction has 31557 states and 67794 transitions. [2022-04-18 19:11:47,270 INFO L479 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) [2022-04-18 19:11:47,270 INFO L276 IsEmpty]: Start isEmpty. Operand 31557 states and 67794 transitions. [2022-04-18 19:11:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:47,275 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:47,275 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:47,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-04-18 19:11:47,275 INFO L403 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:47,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1287558562, now seen corresponding path program 20 times [2022-04-18 19:11:47,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:47,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490912673] [2022-04-18 19:11:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:47,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:47,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:47,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490912673] [2022-04-18 19:11:47,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490912673] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:47,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:47,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:47,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429156567] [2022-04-18 19:11:47,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:47,641 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:47,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:47,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:47,642 INFO L87 Difference]: Start difference. First operand 31557 states and 67794 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) [2022-04-18 19:11:50,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:50,336 INFO L93 Difference]: Finished difference Result 35423 states and 75635 transitions. [2022-04-18 19:11:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:11:50,337 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 [2022-04-18 19:11:50,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:50,400 INFO L225 Difference]: With dead ends: 35423 [2022-04-18 19:11:50,400 INFO L226 Difference]: Without dead ends: 35423 [2022-04-18 19:11:50,400 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=305, Invalid=1101, Unknown=0, NotChecked=0, Total=1406 [2022-04-18 19:11:50,401 INFO L913 BasicCegarLoop]: 169 mSDtfsCounter, 801 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 3623 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 3820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 3623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:50,401 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [801 Valid, 1316 Invalid, 3820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 3623 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:11:50,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35423 states. [2022-04-18 19:11:50,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35423 to 31381. [2022-04-18 19:11:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31381 states, 31344 states have (on average 2.1510974987238387) internal successors, (67424), 31380 states have internal predecessors, (67424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31381 states to 31381 states and 67424 transitions. [2022-04-18 19:11:50,917 INFO L78 Accepts]: Start accepts. Automaton has 31381 states and 67424 transitions. Word has length 32 [2022-04-18 19:11:50,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:50,918 INFO L478 AbstractCegarLoop]: Abstraction has 31381 states and 67424 transitions. [2022-04-18 19:11:50,918 INFO L479 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) [2022-04-18 19:11:50,918 INFO L276 IsEmpty]: Start isEmpty. Operand 31381 states and 67424 transitions. [2022-04-18 19:11:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:50,923 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:50,923 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:50,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-04-18 19:11:50,923 INFO L403 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:50,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:50,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1086671730, now seen corresponding path program 21 times [2022-04-18 19:11:50,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:50,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107596823] [2022-04-18 19:11:50,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:50,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:51,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:51,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107596823] [2022-04-18 19:11:51,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107596823] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:51,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:51,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:51,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597796383] [2022-04-18 19:11:51,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:51,489 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:51,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:51,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:51,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:51,489 INFO L87 Difference]: Start difference. First operand 31381 states and 67424 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) [2022-04-18 19:11:54,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:54,093 INFO L93 Difference]: Finished difference Result 35107 states and 74972 transitions. [2022-04-18 19:11:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:11:54,093 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 [2022-04-18 19:11:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:54,153 INFO L225 Difference]: With dead ends: 35107 [2022-04-18 19:11:54,153 INFO L226 Difference]: Without dead ends: 35107 [2022-04-18 19:11:54,154 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:11:54,154 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 636 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 3577 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 3642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:54,154 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 1307 Invalid, 3642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3577 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:11:54,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35107 states. [2022-04-18 19:11:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35107 to 31385. [2022-04-18 19:11:54,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31385 states, 31348 states have (on average 2.1510782187061377) internal successors, (67432), 31384 states have internal predecessors, (67432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:54,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31385 states to 31385 states and 67432 transitions. [2022-04-18 19:11:54,634 INFO L78 Accepts]: Start accepts. Automaton has 31385 states and 67432 transitions. Word has length 32 [2022-04-18 19:11:54,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:54,634 INFO L478 AbstractCegarLoop]: Abstraction has 31385 states and 67432 transitions. [2022-04-18 19:11:54,634 INFO L479 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) [2022-04-18 19:11:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 31385 states and 67432 transitions. [2022-04-18 19:11:54,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:54,639 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:54,639 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:54,639 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-04-18 19:11:54,639 INFO L403 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:54,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:54,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1439695080, now seen corresponding path program 22 times [2022-04-18 19:11:54,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:54,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550323487] [2022-04-18 19:11:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:54,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:55,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:55,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550323487] [2022-04-18 19:11:55,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550323487] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:55,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:55,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:55,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430579046] [2022-04-18 19:11:55,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:55,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:55,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:55,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:55,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:55,299 INFO L87 Difference]: Start difference. First operand 31385 states and 67432 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) [2022-04-18 19:11:58,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:58,045 INFO L93 Difference]: Finished difference Result 35134 states and 75026 transitions. [2022-04-18 19:11:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-18 19:11:58,046 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 [2022-04-18 19:11:58,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:58,101 INFO L225 Difference]: With dead ends: 35134 [2022-04-18 19:11:58,101 INFO L226 Difference]: Without dead ends: 35134 [2022-04-18 19:11:58,101 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=330, Invalid=1152, Unknown=0, NotChecked=0, Total=1482 [2022-04-18 19:11:58,101 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 571 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 3867 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 3939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:58,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 1433 Invalid, 3939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 3867 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:11:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35134 states. [2022-04-18 19:11:58,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35134 to 31385. [2022-04-18 19:11:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31385 states, 31348 states have (on average 2.1510782187061377) internal successors, (67432), 31384 states have internal predecessors, (67432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:58,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31385 states to 31385 states and 67432 transitions. [2022-04-18 19:11:58,548 INFO L78 Accepts]: Start accepts. Automaton has 31385 states and 67432 transitions. Word has length 32 [2022-04-18 19:11:58,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:58,548 INFO L478 AbstractCegarLoop]: Abstraction has 31385 states and 67432 transitions. [2022-04-18 19:11:58,548 INFO L479 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) [2022-04-18 19:11:58,548 INFO L276 IsEmpty]: Start isEmpty. Operand 31385 states and 67432 transitions. [2022-04-18 19:11:58,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:11:58,553 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:58,553 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:11:58,553 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-04-18 19:11:58,553 INFO L403 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:11:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash 441103108, now seen corresponding path program 23 times [2022-04-18 19:11:58,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:58,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568795818] [2022-04-18 19:11:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:58,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:59,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:59,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568795818] [2022-04-18 19:11:59,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568795818] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:59,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:59,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:11:59,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313978559] [2022-04-18 19:11:59,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:59,132 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:11:59,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:59,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:11:59,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:11:59,133 INFO L87 Difference]: Start difference. First operand 31385 states and 67432 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) [2022-04-18 19:12:01,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:01,425 INFO L93 Difference]: Finished difference Result 43142 states and 92218 transitions. [2022-04-18 19:12:01,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:12:01,426 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 [2022-04-18 19:12:01,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:01,500 INFO L225 Difference]: With dead ends: 43142 [2022-04-18 19:12:01,500 INFO L226 Difference]: Without dead ends: 43142 [2022-04-18 19:12:01,500 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=308, Invalid=1098, Unknown=0, NotChecked=0, Total=1406 [2022-04-18 19:12:01,500 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 551 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 3022 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:01,501 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 1390 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3022 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:12:01,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43142 states. [2022-04-18 19:12:01,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43142 to 31401. [2022-04-18 19:12:01,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31401 states, 31364 states have (on average 2.151001147812779) internal successors, (67464), 31400 states have internal predecessors, (67464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:02,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31401 states to 31401 states and 67464 transitions. [2022-04-18 19:12:02,034 INFO L78 Accepts]: Start accepts. Automaton has 31401 states and 67464 transitions. Word has length 32 [2022-04-18 19:12:02,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:02,034 INFO L478 AbstractCegarLoop]: Abstraction has 31401 states and 67464 transitions. [2022-04-18 19:12:02,034 INFO L479 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) [2022-04-18 19:12:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 31401 states and 67464 transitions. [2022-04-18 19:12:02,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:12:02,039 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:02,039 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:02,039 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-04-18 19:12:02,040 INFO L403 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:12:02,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:02,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2116037656, now seen corresponding path program 24 times [2022-04-18 19:12:02,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:02,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467191884] [2022-04-18 19:12:02,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:02,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:02,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:02,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467191884] [2022-04-18 19:12:02,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467191884] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:02,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:02,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:12:02,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507813539] [2022-04-18 19:12:02,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:02,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:12:02,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:02,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:12:02,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:12:02,696 INFO L87 Difference]: Start difference. First operand 31401 states and 67464 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) [2022-04-18 19:12:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:04,880 INFO L93 Difference]: Finished difference Result 35244 states and 75248 transitions. [2022-04-18 19:12:04,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:12:04,880 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-04-18 19:12:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:04,947 INFO L225 Difference]: With dead ends: 35244 [2022-04-18 19:12:04,947 INFO L226 Difference]: Without dead ends: 35244 [2022-04-18 19:12:04,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=291, Invalid=1041, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:12:04,947 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 511 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 3070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:04,947 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 1426 Invalid, 3070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 19:12:04,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35244 states. [2022-04-18 19:12:05,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35244 to 31401. [2022-04-18 19:12:05,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31401 states, 31364 states have (on average 2.151001147812779) internal successors, (67464), 31400 states have internal predecessors, (67464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:05,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31401 states to 31401 states and 67464 transitions. [2022-04-18 19:12:05,448 INFO L78 Accepts]: Start accepts. Automaton has 31401 states and 67464 transitions. Word has length 32 [2022-04-18 19:12:05,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:05,449 INFO L478 AbstractCegarLoop]: Abstraction has 31401 states and 67464 transitions. [2022-04-18 19:12:05,449 INFO L479 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) [2022-04-18 19:12:05,449 INFO L276 IsEmpty]: Start isEmpty. Operand 31401 states and 67464 transitions. [2022-04-18 19:12:05,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:12:05,454 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:05,454 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:05,454 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-04-18 19:12:05,454 INFO L403 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:12:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1421534684, now seen corresponding path program 25 times [2022-04-18 19:12:05,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:05,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699968497] [2022-04-18 19:12:05,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:05,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:06,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:06,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:06,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699968497] [2022-04-18 19:12:06,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699968497] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:06,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:06,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:12:06,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822558445] [2022-04-18 19:12:06,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:06,075 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:12:06,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:06,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:12:06,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:12:06,075 INFO L87 Difference]: Start difference. First operand 31401 states and 67464 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) [2022-04-18 19:12:08,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:08,027 INFO L93 Difference]: Finished difference Result 35562 states and 75985 transitions. [2022-04-18 19:12:08,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:12:08,027 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 [2022-04-18 19:12:08,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:08,086 INFO L225 Difference]: With dead ends: 35562 [2022-04-18 19:12:08,086 INFO L226 Difference]: Without dead ends: 35562 [2022-04-18 19:12:08,086 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:12:08,087 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 508 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:08,087 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [508 Valid, 931 Invalid, 2644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:12:08,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35562 states. [2022-04-18 19:12:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35562 to 31403. [2022-04-18 19:12:08,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31403 states, 31366 states have (on average 2.1509915194796916) internal successors, (67468), 31402 states have internal predecessors, (67468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:08,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31403 states to 31403 states and 67468 transitions. [2022-04-18 19:12:08,684 INFO L78 Accepts]: Start accepts. Automaton has 31403 states and 67468 transitions. Word has length 32 [2022-04-18 19:12:08,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:08,684 INFO L478 AbstractCegarLoop]: Abstraction has 31403 states and 67468 transitions. [2022-04-18 19:12:08,684 INFO L479 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) [2022-04-18 19:12:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand 31403 states and 67468 transitions. [2022-04-18 19:12:08,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:12:08,689 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:08,689 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:08,689 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-04-18 19:12:08,690 INFO L403 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:12:08,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:08,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1068511334, now seen corresponding path program 26 times [2022-04-18 19:12:08,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:08,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268565585] [2022-04-18 19:12:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:08,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:09,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:09,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268565585] [2022-04-18 19:12:09,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268565585] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:09,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:09,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:12:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233578752] [2022-04-18 19:12:09,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:09,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:12:09,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:12:09,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:12:09,293 INFO L87 Difference]: Start difference. First operand 31403 states and 67468 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) [2022-04-18 19:12:11,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:11,259 INFO L93 Difference]: Finished difference Result 35579 states and 76019 transitions. [2022-04-18 19:12:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:12:11,260 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 [2022-04-18 19:12:11,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:11,319 INFO L225 Difference]: With dead ends: 35579 [2022-04-18 19:12:11,319 INFO L226 Difference]: Without dead ends: 35579 [2022-04-18 19:12:11,320 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:12:11,320 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 445 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 2635 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:11,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 1026 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2635 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-18 19:12:11,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35579 states. [2022-04-18 19:12:11,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35579 to 31401. [2022-04-18 19:12:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31401 states, 31364 states have (on average 2.151001147812779) internal successors, (67464), 31400 states have internal predecessors, (67464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31401 states to 31401 states and 67464 transitions. [2022-04-18 19:12:11,775 INFO L78 Accepts]: Start accepts. Automaton has 31401 states and 67464 transitions. Word has length 32 [2022-04-18 19:12:11,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:11,775 INFO L478 AbstractCegarLoop]: Abstraction has 31401 states and 67464 transitions. [2022-04-18 19:12:11,775 INFO L479 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) [2022-04-18 19:12:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 31401 states and 67464 transitions. [2022-04-18 19:12:11,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:12:11,780 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:11,780 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:11,780 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-04-18 19:12:11,780 INFO L403 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:12:11,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:11,780 INFO L85 PathProgramCache]: Analyzing trace with hash -2067103306, now seen corresponding path program 27 times [2022-04-18 19:12:11,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:11,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361787486] [2022-04-18 19:12:11,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:11,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:12,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:12,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361787486] [2022-04-18 19:12:12,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361787486] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:12,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:12,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:12:12,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004329177] [2022-04-18 19:12:12,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:12,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:12:12,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:12,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:12:12,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:12:12,381 INFO L87 Difference]: Start difference. First operand 31401 states and 67464 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) [2022-04-18 19:12:14,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:14,490 INFO L93 Difference]: Finished difference Result 35613 states and 76089 transitions. [2022-04-18 19:12:14,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:12:14,491 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 [2022-04-18 19:12:14,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:14,552 INFO L225 Difference]: With dead ends: 35613 [2022-04-18 19:12:14,552 INFO L226 Difference]: Without dead ends: 35613 [2022-04-18 19:12:14,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:12:14,554 INFO L913 BasicCegarLoop]: 154 mSDtfsCounter, 443 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 3210 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 3281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:14,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 1031 Invalid, 3281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3210 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:12:14,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35613 states. [2022-04-18 19:12:14,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35613 to 31401. [2022-04-18 19:12:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31401 states, 31364 states have (on average 2.151001147812779) internal successors, (67464), 31400 states have internal predecessors, (67464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:15,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31401 states to 31401 states and 67464 transitions. [2022-04-18 19:12:15,015 INFO L78 Accepts]: Start accepts. Automaton has 31401 states and 67464 transitions. Word has length 32 [2022-04-18 19:12:15,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:15,015 INFO L478 AbstractCegarLoop]: Abstraction has 31401 states and 67464 transitions. [2022-04-18 19:12:15,015 INFO L479 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) [2022-04-18 19:12:15,015 INFO L276 IsEmpty]: Start isEmpty. Operand 31401 states and 67464 transitions. [2022-04-18 19:12:15,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:12:15,020 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:15,020 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:15,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-04-18 19:12:15,020 INFO L403 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:12:15,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:15,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1524384074, now seen corresponding path program 28 times [2022-04-18 19:12:15,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:15,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800149402] [2022-04-18 19:12:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:15,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:15,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:15,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800149402] [2022-04-18 19:12:15,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800149402] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:15,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:15,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:12:15,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98269035] [2022-04-18 19:12:15,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:15,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:12:15,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:15,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:12:15,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:12:15,614 INFO L87 Difference]: Start difference. First operand 31401 states and 67464 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) [2022-04-18 19:12:17,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:17,900 INFO L93 Difference]: Finished difference Result 35553 states and 75967 transitions. [2022-04-18 19:12:17,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:12:17,901 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 [2022-04-18 19:12:17,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:17,967 INFO L225 Difference]: With dead ends: 35553 [2022-04-18 19:12:17,967 INFO L226 Difference]: Without dead ends: 35553 [2022-04-18 19:12:17,967 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:12:17,968 INFO L913 BasicCegarLoop]: 156 mSDtfsCounter, 583 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 3452 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 3520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:17,968 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 936 Invalid, 3520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3452 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:12:18,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35553 states. [2022-04-18 19:12:18,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35553 to 31401. [2022-04-18 19:12:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31401 states, 31364 states have (on average 2.151001147812779) internal successors, (67464), 31400 states have internal predecessors, (67464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31401 states to 31401 states and 67464 transitions. [2022-04-18 19:12:18,508 INFO L78 Accepts]: Start accepts. Automaton has 31401 states and 67464 transitions. Word has length 32 [2022-04-18 19:12:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:18,508 INFO L478 AbstractCegarLoop]: Abstraction has 31401 states and 67464 transitions. [2022-04-18 19:12:18,508 INFO L479 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) [2022-04-18 19:12:18,508 INFO L276 IsEmpty]: Start isEmpty. Operand 31401 states and 67464 transitions. [2022-04-18 19:12:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:12:18,514 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:18,514 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:18,514 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-04-18 19:12:18,514 INFO L403 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-04-18 19:12:18,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:18,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1189578374, now seen corresponding path program 29 times [2022-04-18 19:12:18,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:18,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888156670] [2022-04-18 19:12:18,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:18,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:19,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:19,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:19,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888156670] [2022-04-18 19:12:19,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888156670] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:19,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:19,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:12:19,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625118885] [2022-04-18 19:12:19,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:19,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:12:19,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:19,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:12:19,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:12:19,180 INFO L87 Difference]: Start difference. First operand 31401 states and 67464 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) [2022-04-18 19:12:22,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:22,008 INFO L93 Difference]: Finished difference Result 35564 states and 75989 transitions. [2022-04-18 19:12:22,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:12:22,008 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 [2022-04-18 19:12:22,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:22,083 INFO L225 Difference]: With dead ends: 35564 [2022-04-18 19:12:22,083 INFO L226 Difference]: Without dead ends: 35564 [2022-04-18 19:12:22,083 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=230, Invalid=762, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:12:22,084 INFO L913 BasicCegarLoop]: 156 mSDtfsCounter, 555 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 3965 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 4036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:22,084 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [555 Valid, 946 Invalid, 4036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3965 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:12:22,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35564 states. Killed by 15