./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-2.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-2.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 b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:01:47,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:01:47,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:01:47,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:01:47,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:01:47,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:01:47,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:01:47,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:01:47,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:01:47,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:01:47,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:01:47,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:01:47,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:01:47,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:01:47,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:01:47,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:01:47,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:01:47,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:01:47,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:01:47,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:01:47,950 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:01:47,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:01:47,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:01:47,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:01:47,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:01:47,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:01:47,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:01:47,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:01:47,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:01:47,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:01:47,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:01:47,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:01:47,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:01:47,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:01:47,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:01:47,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:01:47,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:01:47,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:01:47,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:01:47,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:01:47,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:01:47,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:01:47,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:01:47,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:01:47,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:01:47,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:01:48,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:01:48,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:01:48,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:01:48,001 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:01:48,001 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:01:48,001 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:01:48,002 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:01:48,002 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:01:48,003 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:01:48,003 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:01:48,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:01:48,003 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:01:48,003 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:01:48,003 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:01:48,004 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:01:48,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:01:48,005 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:01:48,005 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:01:48,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:01:48,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:01:48,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:01:48,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:01:48,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:01:48,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:01:48,006 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:01:48,007 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:01:48,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:01:48,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:01:48,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:01:48,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:01:48,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:01:48,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:01:48,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:01:48,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:01:48,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:01:48,008 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:01:48,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:01:48,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:01:48,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:01:48,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:01:48,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2022-04-18 19:01:48,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:01:48,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:01:48,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:01:48,260 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:01:48,260 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:01:48,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2022-04-18 19:01:48,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/42c58eb7f/fb4cd86bbc2b4d64a36f62101e95a5fb/FLAGff755869a [2022-04-18 19:01:48,777 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:01:48,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2022-04-18 19:01:48,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/42c58eb7f/fb4cd86bbc2b4d64a36f62101e95a5fb/FLAGff755869a [2022-04-18 19:01:49,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/42c58eb7f/fb4cd86bbc2b4d64a36f62101e95a5fb [2022-04-18 19:01:49,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:01:49,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:01:49,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:01:49,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:01:49,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:01:49,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:49,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45894815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49, skipping insertion in model container [2022-04-18 19:01:49,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:49,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:01:49,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:01:49,458 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 19:01:49,721 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-2.i[39095,39108] [2022-04-18 19:01:49,723 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-2.i[39180,39193] [2022-04-18 19:01:49,724 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-2.i[39232,39245] [2022-04-18 19:01:49,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:01:49,740 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:01:49,757 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 19:01:49,802 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-2.i[39095,39108] [2022-04-18 19:01:49,805 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-2.i[39180,39193] [2022-04-18 19:01:49,806 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-2.i[39232,39245] [2022-04-18 19:01:49,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:01:49,858 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:01:49,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49 WrapperNode [2022-04-18 19:01:49,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:01:49,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:01:49,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:01:49,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:01:49,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:49,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:49,947 INFO L137 Inliner]: procedures = 224, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 220 [2022-04-18 19:01:49,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:01:49,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:01:49,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:01:49,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:01:49,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:49,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:49,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:49,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:49,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:50,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:50,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:50,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:01:50,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:01:50,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:01:50,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:01:50,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (1/1) ... [2022-04-18 19:01:50,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:01:50,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:01:50,060 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 19:01:50,067 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 19:01:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2022-04-18 19:01:50,094 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2022-04-18 19:01:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:01:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:01:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 19:01:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:01:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:01:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:01:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:01:50,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:01:50,097 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 19:01:50,188 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:01:50,189 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:01:50,597 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:01:50,607 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:01:50,612 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 19:01:50,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:01:50 BoogieIcfgContainer [2022-04-18 19:01:50,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:01:50,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:01:50,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:01:50,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:01:50,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:01:49" (1/3) ... [2022-04-18 19:01:50,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2127c63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:01:50, skipping insertion in model container [2022-04-18 19:01:50,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:01:49" (2/3) ... [2022-04-18 19:01:50,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2127c63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:01:50, skipping insertion in model container [2022-04-18 19:01:50,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:01:50" (3/3) ... [2022-04-18 19:01:50,626 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2022-04-18 19:01:50,634 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:01:50,634 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:01:50,635 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-04-18 19:01:50,635 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:01:50,740 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 19:01:50,773 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:01:50,779 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 19:01:50,779 INFO L341 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-04-18 19:01:50,792 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:01:50,802 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 267 transitions, 542 flow [2022-04-18 19:01:50,804 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 267 transitions, 542 flow [2022-04-18 19:01:50,806 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 261 places, 267 transitions, 542 flow [2022-04-18 19:01:50,928 INFO L129 PetriNetUnfolder]: 10/266 cut-off events. [2022-04-18 19:01:50,930 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 19:01:50,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 266 events. 10/266 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 539 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-04-18 19:01:50,953 INFO L116 LiptonReduction]: Number of co-enabled transitions 21228 [2022-04-18 19:02:00,999 INFO L131 LiptonReduction]: Checked pairs total: 138697 [2022-04-18 19:02:00,999 INFO L133 LiptonReduction]: Total number of compositions: 184 [2022-04-18 19:02:01,007 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 120 transitions, 248 flow [2022-04-18 19:02:01,111 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 19:02:01,125 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:01,125 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 19:02:01,126 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:01,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:01,134 INFO L85 PathProgramCache]: Analyzing trace with hash 915, now seen corresponding path program 1 times [2022-04-18 19:02:01,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:01,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025934208] [2022-04-18 19:02:01,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:01,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:01,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:01,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025934208] [2022-04-18 19:02:01,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025934208] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:01,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:01,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 19:02:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456532850] [2022-04-18 19:02:01,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:01,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:02:01,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:01,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:02:01,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:02:01,305 INFO L87 Difference]: Start difference. First operand has 2961 states, 2888 states have (on average 2.1246537396121883) internal successors, (6136), 2960 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:01,431 INFO L93 Difference]: Finished difference Result 2959 states and 6025 transitions. [2022-04-18 19:02:01,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:02:01,434 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 19:02:01,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:01,464 INFO L225 Difference]: With dead ends: 2959 [2022-04-18 19:02:01,464 INFO L226 Difference]: Without dead ends: 2959 [2022-04-18 19:02:01,465 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 19:02:01,469 INFO L913 BasicCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:01,470 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:02:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2022-04-18 19:02:01,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2959. [2022-04-18 19:02:01,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2959 states, 2888 states have (on average 2.086218836565097) internal successors, (6025), 2958 states have internal predecessors, (6025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2959 states to 2959 states and 6025 transitions. [2022-04-18 19:02:01,616 INFO L78 Accepts]: Start accepts. Automaton has 2959 states and 6025 transitions. Word has length 1 [2022-04-18 19:02:01,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:01,617 INFO L478 AbstractCegarLoop]: Abstraction has 2959 states and 6025 transitions. [2022-04-18 19:02:01,617 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 19:02:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2959 states and 6025 transitions. [2022-04-18 19:02:01,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:02:01,618 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:01,619 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:01,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:02:01,624 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash -888756940, now seen corresponding path program 1 times [2022-04-18 19:02:01,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:01,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557291631] [2022-04-18 19:02:01,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:01,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:01,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:01,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557291631] [2022-04-18 19:02:01,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557291631] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:01,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:01,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 19:02:01,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723360591] [2022-04-18 19:02:01,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:01,766 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:02:01,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:01,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:02:01,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:02:01,767 INFO L87 Difference]: Start difference. First operand 2959 states and 6025 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:01,896 INFO L93 Difference]: Finished difference Result 5453 states and 11114 transitions. [2022-04-18 19:02:01,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:02:01,897 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 19:02:01,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:01,927 INFO L225 Difference]: With dead ends: 5453 [2022-04-18 19:02:01,927 INFO L226 Difference]: Without dead ends: 5453 [2022-04-18 19:02:01,928 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 19:02:01,929 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 102 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:01,930 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 228 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 19:02:01,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5453 states. [2022-04-18 19:02:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5453 to 3017. [2022-04-18 19:02:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3017 states, 2946 states have (on average 2.0848608282416836) internal successors, (6142), 3016 states have internal predecessors, (6142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:02,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3017 states to 3017 states and 6142 transitions. [2022-04-18 19:02:02,125 INFO L78 Accepts]: Start accepts. Automaton has 3017 states and 6142 transitions. Word has length 9 [2022-04-18 19:02:02,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:02,125 INFO L478 AbstractCegarLoop]: Abstraction has 3017 states and 6142 transitions. [2022-04-18 19:02:02,125 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 19:02:02,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3017 states and 6142 transitions. [2022-04-18 19:02:02,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:02:02,126 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:02,127 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:02,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:02:02,127 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:02,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1573162734, now seen corresponding path program 1 times [2022-04-18 19:02:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:02,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005152364] [2022-04-18 19:02:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:02,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:02,314 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 19:02:02,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:02,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005152364] [2022-04-18 19:02:02,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005152364] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:02,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:02,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:02:02,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924729398] [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 6 states [2022-04-18 19:02:02,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:02:02,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:02:02,317 INFO L87 Difference]: Start difference. First operand 3017 states and 6142 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:02,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:02,984 INFO L93 Difference]: Finished difference Result 5364 states and 10935 transitions. [2022-04-18 19:02:02,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:02:02,985 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 19:02:02,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:03,009 INFO L225 Difference]: With dead ends: 5364 [2022-04-18 19:02:03,009 INFO L226 Difference]: Without dead ends: 5364 [2022-04-18 19:02:03,010 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 19:02:03,010 INFO L913 BasicCegarLoop]: 64 mSDtfsCounter, 153 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:03,011 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 83 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-18 19:02:03,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5364 states. [2022-04-18 19:02:03,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5364 to 3413. [2022-04-18 19:02:03,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3342 states have (on average 2.0771992818671454) internal successors, (6942), 3412 states have internal predecessors, (6942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 6942 transitions. [2022-04-18 19:02:03,168 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 6942 transitions. Word has length 10 [2022-04-18 19:02:03,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:03,169 INFO L478 AbstractCegarLoop]: Abstraction has 3413 states and 6942 transitions. [2022-04-18 19:02:03,169 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 19:02:03,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 6942 transitions. [2022-04-18 19:02:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:02:03,171 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:03,171 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:03,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:02:03,172 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:03,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:03,179 INFO L85 PathProgramCache]: Analyzing trace with hash 497031854, now seen corresponding path program 1 times [2022-04-18 19:02:03,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:03,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247501116] [2022-04-18 19:02:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:03,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:03,291 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 19:02:03,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:03,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247501116] [2022-04-18 19:02:03,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247501116] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:03,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:03,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:02:03,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130420674] [2022-04-18 19:02:03,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:03,295 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:02:03,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:03,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:02:03,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:02:03,296 INFO L87 Difference]: Start difference. First operand 3413 states and 6942 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:04,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:04,019 INFO L93 Difference]: Finished difference Result 5250 states and 10704 transitions. [2022-04-18 19:02:04,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:02:04,020 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 19:02:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:04,047 INFO L225 Difference]: With dead ends: 5250 [2022-04-18 19:02:04,047 INFO L226 Difference]: Without dead ends: 5250 [2022-04-18 19:02:04,048 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 19:02:04,049 INFO L913 BasicCegarLoop]: 84 mSDtfsCounter, 119 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:04,049 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 112 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:02:04,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2022-04-18 19:02:04,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 4040. [2022-04-18 19:02:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 3975 states have (on average 2.0649056603773586) internal successors, (8208), 4039 states have internal predecessors, (8208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:04,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 8208 transitions. [2022-04-18 19:02:04,147 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 8208 transitions. Word has length 10 [2022-04-18 19:02:04,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:04,148 INFO L478 AbstractCegarLoop]: Abstraction has 4040 states and 8208 transitions. [2022-04-18 19:02:04,148 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 19:02:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 8208 transitions. [2022-04-18 19:02:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 19:02:04,157 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:04,157 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:04,157 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:02:04,162 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1756512711, now seen corresponding path program 1 times [2022-04-18 19:02:04,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:04,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498886903] [2022-04-18 19:02:04,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:04,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:04,265 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 19:02:04,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:04,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498886903] [2022-04-18 19:02:04,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498886903] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:04,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:04,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:02:04,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432520341] [2022-04-18 19:02:04,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:04,267 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:02:04,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:04,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:02:04,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:02:04,268 INFO L87 Difference]: Start difference. First operand 4040 states and 8208 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:04,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:04,994 INFO L93 Difference]: Finished difference Result 5573 states and 11371 transitions. [2022-04-18 19:02:04,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:02:04,995 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 19:02:04,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:05,028 INFO L225 Difference]: With dead ends: 5573 [2022-04-18 19:02:05,029 INFO L226 Difference]: Without dead ends: 5562 [2022-04-18 19:02:05,029 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 19:02:05,031 INFO L913 BasicCegarLoop]: 78 mSDtfsCounter, 109 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:05,031 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 111 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 19:02:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5562 states. [2022-04-18 19:02:05,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5562 to 4371. [2022-04-18 19:02:05,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4312 states have (on average 2.0693413729128016) internal successors, (8923), 4370 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:05,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 8923 transitions. [2022-04-18 19:02:05,147 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 8923 transitions. Word has length 16 [2022-04-18 19:02:05,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:05,148 INFO L478 AbstractCegarLoop]: Abstraction has 4371 states and 8923 transitions. [2022-04-18 19:02:05,148 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 19:02:05,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 8923 transitions. [2022-04-18 19:02:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 19:02:05,150 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:05,150 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:05,150 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:02:05,150 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:05,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1275706918, now seen corresponding path program 1 times [2022-04-18 19:02:05,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:05,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430660823] [2022-04-18 19:02:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:05,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:05,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:05,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430660823] [2022-04-18 19:02:05,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430660823] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:05,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:05,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:02:05,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46051853] [2022-04-18 19:02:05,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:05,261 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:02:05,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:05,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:02:05,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:02:05,262 INFO L87 Difference]: Start difference. First operand 4371 states and 8923 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:05,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:05,828 INFO L93 Difference]: Finished difference Result 5800 states and 11867 transitions. [2022-04-18 19:02:05,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:02:05,829 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 19:02:05,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:05,844 INFO L225 Difference]: With dead ends: 5800 [2022-04-18 19:02:05,844 INFO L226 Difference]: Without dead ends: 5800 [2022-04-18 19:02:05,845 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 19:02:05,845 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 132 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:05,846 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 116 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 19:02:05,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-04-18 19:02:05,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 4562. [2022-04-18 19:02:05,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4562 states, 4507 states have (on average 2.0769913467938763) internal successors, (9361), 4561 states have internal predecessors, (9361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:05,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 9361 transitions. [2022-04-18 19:02:05,955 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 9361 transitions. Word has length 16 [2022-04-18 19:02:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:05,956 INFO L478 AbstractCegarLoop]: Abstraction has 4562 states and 9361 transitions. [2022-04-18 19:02:05,956 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 19:02:05,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 9361 transitions. [2022-04-18 19:02:05,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 19:02:05,957 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:05,957 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] [2022-04-18 19:02:05,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 19:02:05,958 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:05,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:05,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1255824189, now seen corresponding path program 1 times [2022-04-18 19:02:05,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:05,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322431753] [2022-04-18 19:02:05,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:05,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:06,031 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 19:02:06,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:06,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322431753] [2022-04-18 19:02:06,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322431753] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:06,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:06,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:02:06,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790731433] [2022-04-18 19:02:06,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:06,033 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:02:06,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:06,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:02:06,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:02:06,034 INFO L87 Difference]: Start difference. First operand 4562 states and 9361 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:06,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:06,511 INFO L93 Difference]: Finished difference Result 5530 states and 11317 transitions. [2022-04-18 19:02:06,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:02:06,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 19:02:06,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:06,525 INFO L225 Difference]: With dead ends: 5530 [2022-04-18 19:02:06,526 INFO L226 Difference]: Without dead ends: 5530 [2022-04-18 19:02:06,526 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 19:02:06,526 INFO L913 BasicCegarLoop]: 86 mSDtfsCounter, 124 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:06,527 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 101 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:02:06,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5530 states. [2022-04-18 19:02:06,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5530 to 4886. [2022-04-18 19:02:06,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4886 states, 4839 states have (on average 2.06964248811738) internal successors, (10015), 4885 states have internal predecessors, (10015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:06,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4886 states to 4886 states and 10015 transitions. [2022-04-18 19:02:06,627 INFO L78 Accepts]: Start accepts. Automaton has 4886 states and 10015 transitions. Word has length 22 [2022-04-18 19:02:06,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:06,627 INFO L478 AbstractCegarLoop]: Abstraction has 4886 states and 10015 transitions. [2022-04-18 19:02:06,627 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:06,627 INFO L276 IsEmpty]: Start isEmpty. Operand 4886 states and 10015 transitions. [2022-04-18 19:02:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-18 19:02:06,629 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:06,629 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 19:02:06,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 19:02:06,630 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:06,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash 348282471, now seen corresponding path program 1 times [2022-04-18 19:02:06,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:06,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63275395] [2022-04-18 19:02:06,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:06,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:06,713 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 19:02:06,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:06,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63275395] [2022-04-18 19:02:06,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63275395] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:06,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:06,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:02:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695926684] [2022-04-18 19:02:06,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:06,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:02:06,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:06,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:02:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:02:06,715 INFO L87 Difference]: Start difference. First operand 4886 states and 10015 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:07,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:07,222 INFO L93 Difference]: Finished difference Result 5094 states and 10435 transitions. [2022-04-18 19:02:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:02:07,222 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 19:02:07,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:07,234 INFO L225 Difference]: With dead ends: 5094 [2022-04-18 19:02:07,235 INFO L226 Difference]: Without dead ends: 5094 [2022-04-18 19:02:07,235 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 19:02:07,236 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 98 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:07,236 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 123 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 19:02:07,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5094 states. [2022-04-18 19:02:07,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 5048. [2022-04-18 19:02:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5048 states, 5005 states have (on average 2.066333666333666) internal successors, (10342), 5047 states have internal predecessors, (10342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5048 states to 5048 states and 10342 transitions. [2022-04-18 19:02:07,356 INFO L78 Accepts]: Start accepts. Automaton has 5048 states and 10342 transitions. Word has length 28 [2022-04-18 19:02:07,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:07,356 INFO L478 AbstractCegarLoop]: Abstraction has 5048 states and 10342 transitions. [2022-04-18 19:02:07,356 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 19:02:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5048 states and 10342 transitions. [2022-04-18 19:02:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-04-18 19:02:07,358 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:07,358 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 19:02:07,359 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 19:02:07,359 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:07,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:07,359 INFO L85 PathProgramCache]: Analyzing trace with hash 128774155, now seen corresponding path program 1 times [2022-04-18 19:02:07,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:07,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055928233] [2022-04-18 19:02:07,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:07,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:07,470 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 19:02:07,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:07,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055928233] [2022-04-18 19:02:07,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055928233] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:07,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:07,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:02:07,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188469882] [2022-04-18 19:02:07,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:07,474 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:02:07,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:07,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:02:07,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:02:07,476 INFO L87 Difference]: Start difference. First operand 5048 states and 10342 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:07,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:07,864 INFO L93 Difference]: Finished difference Result 5268 states and 10786 transitions. [2022-04-18 19:02:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:02:07,864 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 19:02:07,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:07,878 INFO L225 Difference]: With dead ends: 5268 [2022-04-18 19:02:07,878 INFO L226 Difference]: Without dead ends: 5268 [2022-04-18 19:02:07,878 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 19:02:07,879 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 108 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:07,879 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 118 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:02:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2022-04-18 19:02:07,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 5268. [2022-04-18 19:02:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5225 states have (on average 2.064306220095694) internal successors, (10786), 5267 states have internal predecessors, (10786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 10786 transitions. [2022-04-18 19:02:08,001 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 10786 transitions. Word has length 28 [2022-04-18 19:02:08,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:08,002 INFO L478 AbstractCegarLoop]: Abstraction has 5268 states and 10786 transitions. [2022-04-18 19:02:08,003 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 19:02:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 10786 transitions. [2022-04-18 19:02:08,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:08,005 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:08,005 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 19:02:08,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 19:02:08,006 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:08,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:08,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1811384183, now seen corresponding path program 1 times [2022-04-18 19:02:08,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:08,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558695246] [2022-04-18 19:02:08,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:08,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:08,847 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 19:02:08,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:08,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558695246] [2022-04-18 19:02:08,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558695246] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:08,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:08,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:08,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207275727] [2022-04-18 19:02:08,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:08,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:08,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:08,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:08,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:08,849 INFO L87 Difference]: Start difference. First operand 5268 states and 10786 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 19:02:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:12,509 INFO L93 Difference]: Finished difference Result 11975 states and 24573 transitions. [2022-04-18 19:02:12,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-04-18 19:02:12,511 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 19:02:12,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:12,540 INFO L225 Difference]: With dead ends: 11975 [2022-04-18 19:02:12,540 INFO L226 Difference]: Without dead ends: 11971 [2022-04-18 19:02:12,541 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=469, Invalid=1091, Unknown=0, NotChecked=0, Total=1560 [2022-04-18 19:02:12,541 INFO L913 BasicCegarLoop]: 95 mSDtfsCounter, 712 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 4255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:12,542 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 437 Invalid, 4255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:02:12,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11971 states. [2022-04-18 19:02:12,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11971 to 6155. [2022-04-18 19:02:12,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6155 states, 6112 states have (on average 2.0958769633507854) internal successors, (12810), 6154 states have internal predecessors, (12810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:12,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6155 states to 6155 states and 12810 transitions. [2022-04-18 19:02:12,695 INFO L78 Accepts]: Start accepts. Automaton has 6155 states and 12810 transitions. Word has length 32 [2022-04-18 19:02:12,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:12,695 INFO L478 AbstractCegarLoop]: Abstraction has 6155 states and 12810 transitions. [2022-04-18 19:02:12,696 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 19:02:12,696 INFO L276 IsEmpty]: Start isEmpty. Operand 6155 states and 12810 transitions. [2022-04-18 19:02:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:12,701 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:12,701 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 19:02:12,701 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 19:02:12,701 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:12,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1973573331, now seen corresponding path program 1 times [2022-04-18 19:02:12,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:12,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892315991] [2022-04-18 19:02:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:13,550 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 19:02:13,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:13,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892315991] [2022-04-18 19:02:13,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892315991] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:13,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:13,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:13,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788965477] [2022-04-18 19:02:13,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:13,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:13,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:13,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:13,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:13,553 INFO L87 Difference]: Start difference. First operand 6155 states and 12810 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 19:02:16,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:16,521 INFO L93 Difference]: Finished difference Result 11737 states and 24113 transitions. [2022-04-18 19:02:16,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:02:16,522 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 19:02:16,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:16,548 INFO L225 Difference]: With dead ends: 11737 [2022-04-18 19:02:16,548 INFO L226 Difference]: Without dead ends: 11737 [2022-04-18 19:02:16,548 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:02:16,549 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 972 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 3654 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 3801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 3654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:16,549 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 854 Invalid, 3801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 3654 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:02:16,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11737 states. [2022-04-18 19:02:16,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11737 to 6470. [2022-04-18 19:02:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6470 states, 6427 states have (on average 2.095845651159172) internal successors, (13470), 6469 states have internal predecessors, (13470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6470 states to 6470 states and 13470 transitions. [2022-04-18 19:02:16,704 INFO L78 Accepts]: Start accepts. Automaton has 6470 states and 13470 transitions. Word has length 32 [2022-04-18 19:02:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:16,705 INFO L478 AbstractCegarLoop]: Abstraction has 6470 states and 13470 transitions. [2022-04-18 19:02:16,706 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 19:02:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 6470 states and 13470 transitions. [2022-04-18 19:02:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:16,709 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:16,710 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 19:02:16,710 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 19:02:16,710 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:16,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:16,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1938846281, now seen corresponding path program 2 times [2022-04-18 19:02:16,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:16,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065590035] [2022-04-18 19:02:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:16,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:17,477 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 19:02:17,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:17,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065590035] [2022-04-18 19:02:17,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065590035] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:17,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:17,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:17,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620271552] [2022-04-18 19:02:17,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:17,479 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:17,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:17,480 INFO L87 Difference]: Start difference. First operand 6470 states and 13470 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 19:02:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:21,239 INFO L93 Difference]: Finished difference Result 18019 states and 37645 transitions. [2022-04-18 19:02:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-04-18 19:02:21,239 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 19:02:21,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:21,283 INFO L225 Difference]: With dead ends: 18019 [2022-04-18 19:02:21,284 INFO L226 Difference]: Without dead ends: 18015 [2022-04-18 19:02:21,284 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=391, Invalid=941, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:02:21,285 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 871 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 3850 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 4474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 3850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:21,285 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [871 Valid, 759 Invalid, 4474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 3850 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:02:21,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18015 states. [2022-04-18 19:02:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18015 to 7534. [2022-04-18 19:02:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7491 states have (on average 2.119877185956481) internal successors, (15880), 7533 states have internal predecessors, (15880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:21,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 15880 transitions. [2022-04-18 19:02:21,519 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 15880 transitions. Word has length 32 [2022-04-18 19:02:21,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:21,519 INFO L478 AbstractCegarLoop]: Abstraction has 7534 states and 15880 transitions. [2022-04-18 19:02:21,519 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 19:02:21,519 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 15880 transitions. [2022-04-18 19:02:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:21,525 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:21,525 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 19:02:21,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 19:02:21,526 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:21,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash 157683303, now seen corresponding path program 2 times [2022-04-18 19:02:21,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:21,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937752504] [2022-04-18 19:02:21,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:21,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:22,181 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 19:02:22,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:22,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937752504] [2022-04-18 19:02:22,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937752504] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:22,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:22,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:22,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829526583] [2022-04-18 19:02:22,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:22,183 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:22,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:22,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:22,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:22,184 INFO L87 Difference]: Start difference. First operand 7534 states and 15880 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 19:02:25,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:25,165 INFO L93 Difference]: Finished difference Result 14150 states and 29564 transitions. [2022-04-18 19:02:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:02:25,166 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 19:02:25,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:25,189 INFO L225 Difference]: With dead ends: 14150 [2022-04-18 19:02:25,189 INFO L226 Difference]: Without dead ends: 14150 [2022-04-18 19:02:25,190 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:02:25,190 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 746 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 4006 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 4083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:25,190 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 1241 Invalid, 4083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 4006 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:02:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14150 states. [2022-04-18 19:02:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14150 to 7534. [2022-04-18 19:02:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7491 states have (on average 2.119877185956481) internal successors, (15880), 7533 states have internal predecessors, (15880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:25,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 15880 transitions. [2022-04-18 19:02:25,431 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 15880 transitions. Word has length 32 [2022-04-18 19:02:25,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:25,432 INFO L478 AbstractCegarLoop]: Abstraction has 7534 states and 15880 transitions. [2022-04-18 19:02:25,433 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 19:02:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 15880 transitions. [2022-04-18 19:02:25,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:25,439 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:25,439 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 19:02:25,439 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 19:02:25,440 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:25,441 INFO L85 PathProgramCache]: Analyzing trace with hash 157460103, now seen corresponding path program 3 times [2022-04-18 19:02:25,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:25,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959640730] [2022-04-18 19:02:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:25,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:26,038 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 19:02:26,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:26,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959640730] [2022-04-18 19:02:26,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959640730] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:26,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:26,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:02:26,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760169096] [2022-04-18 19:02:26,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:26,039 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:02:26,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:26,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:02:26,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:02:26,040 INFO L87 Difference]: Start difference. First operand 7534 states and 15880 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 19:02:28,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:28,348 INFO L93 Difference]: Finished difference Result 12389 states and 26067 transitions. [2022-04-18 19:02:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:02:28,356 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 19:02:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:28,380 INFO L225 Difference]: With dead ends: 12389 [2022-04-18 19:02:28,380 INFO L226 Difference]: Without dead ends: 12389 [2022-04-18 19:02:28,380 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:02:28,381 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 620 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 3836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:28,381 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 917 Invalid, 3836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:02:28,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12389 states. [2022-04-18 19:02:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12389 to 7911. [2022-04-18 19:02:28,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7911 states, 7868 states have (on average 2.1239196746314186) internal successors, (16711), 7910 states have internal predecessors, (16711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:28,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7911 states to 7911 states and 16711 transitions. [2022-04-18 19:02:28,590 INFO L78 Accepts]: Start accepts. Automaton has 7911 states and 16711 transitions. Word has length 32 [2022-04-18 19:02:28,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:28,590 INFO L478 AbstractCegarLoop]: Abstraction has 7911 states and 16711 transitions. [2022-04-18 19:02:28,590 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 19:02:28,590 INFO L276 IsEmpty]: Start isEmpty. Operand 7911 states and 16711 transitions. [2022-04-18 19:02:28,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:28,595 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:28,595 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 19:02:28,595 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 19:02:28,596 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:28,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:28,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1337689505, now seen corresponding path program 3 times [2022-04-18 19:02:28,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:28,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691373205] [2022-04-18 19:02:28,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:28,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:29,253 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 19:02:29,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:29,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691373205] [2022-04-18 19:02:29,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691373205] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:29,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:29,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:29,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891823566] [2022-04-18 19:02:29,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:29,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:29,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:29,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:29,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:29,255 INFO L87 Difference]: Start difference. First operand 7911 states and 16711 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 19:02:32,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:32,997 INFO L93 Difference]: Finished difference Result 21493 states and 45464 transitions. [2022-04-18 19:02:32,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-18 19:02:32,997 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 19:02:32,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:33,034 INFO L225 Difference]: With dead ends: 21493 [2022-04-18 19:02:33,034 INFO L226 Difference]: Without dead ends: 21486 [2022-04-18 19:02:33,035 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=514, Invalid=1292, Unknown=0, NotChecked=0, Total=1806 [2022-04-18 19:02:33,035 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 872 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 3760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:33,036 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 963 Invalid, 3760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:02:33,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21486 states. [2022-04-18 19:02:33,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21486 to 9891. [2022-04-18 19:02:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9891 states, 9848 states have (on average 2.162774167343623) internal successors, (21299), 9890 states have internal predecessors, (21299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:33,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9891 states to 9891 states and 21299 transitions. [2022-04-18 19:02:33,306 INFO L78 Accepts]: Start accepts. Automaton has 9891 states and 21299 transitions. Word has length 32 [2022-04-18 19:02:33,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:33,307 INFO L478 AbstractCegarLoop]: Abstraction has 9891 states and 21299 transitions. [2022-04-18 19:02:33,307 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 19:02:33,307 INFO L276 IsEmpty]: Start isEmpty. Operand 9891 states and 21299 transitions. [2022-04-18 19:02:33,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:33,312 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:33,313 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, 1] [2022-04-18 19:02:33,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 19:02:33,313 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:33,314 INFO L85 PathProgramCache]: Analyzing trace with hash -807203297, now seen corresponding path program 4 times [2022-04-18 19:02:33,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:33,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607035296] [2022-04-18 19:02:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:33,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:33,759 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 19:02:33,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:33,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607035296] [2022-04-18 19:02:33,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607035296] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:33,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:33,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:33,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048119410] [2022-04-18 19:02:33,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:33,760 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:33,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:33,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:33,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:33,761 INFO L87 Difference]: Start difference. First operand 9891 states and 21299 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 19:02:37,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:37,921 INFO L93 Difference]: Finished difference Result 24681 states and 52750 transitions. [2022-04-18 19:02:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-04-18 19:02:37,922 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 19:02:37,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:37,967 INFO L225 Difference]: With dead ends: 24681 [2022-04-18 19:02:37,967 INFO L226 Difference]: Without dead ends: 24674 [2022-04-18 19:02:37,968 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=529, Invalid=1363, Unknown=0, NotChecked=0, Total=1892 [2022-04-18 19:02:37,968 INFO L913 BasicCegarLoop]: 228 mSDtfsCounter, 965 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 4705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 3878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:37,969 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 1174 Invalid, 4705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [827 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:02:37,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24674 states. [2022-04-18 19:02:38,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24674 to 9903. [2022-04-18 19:02:38,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9903 states, 9860 states have (on average 2.162576064908722) internal successors, (21323), 9902 states have internal predecessors, (21323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9903 states to 9903 states and 21323 transitions. [2022-04-18 19:02:38,233 INFO L78 Accepts]: Start accepts. Automaton has 9903 states and 21323 transitions. Word has length 32 [2022-04-18 19:02:38,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:38,234 INFO L478 AbstractCegarLoop]: Abstraction has 9903 states and 21323 transitions. [2022-04-18 19:02:38,234 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 19:02:38,235 INFO L276 IsEmpty]: Start isEmpty. Operand 9903 states and 21323 transitions. [2022-04-18 19:02:38,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:38,240 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:38,240 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, 1] [2022-04-18 19:02:38,240 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 19:02:38,240 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:38,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:38,241 INFO L85 PathProgramCache]: Analyzing trace with hash 230928017, now seen corresponding path program 5 times [2022-04-18 19:02:38,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:38,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055227841] [2022-04-18 19:02:38,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:38,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:38,736 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 19:02:38,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:38,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055227841] [2022-04-18 19:02:38,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055227841] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:38,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:38,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:38,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429123075] [2022-04-18 19:02:38,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:38,737 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:38,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:38,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:38,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:38,738 INFO L87 Difference]: Start difference. First operand 9903 states and 21323 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 19:02:42,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:42,909 INFO L93 Difference]: Finished difference Result 26356 states and 55751 transitions. [2022-04-18 19:02:42,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-04-18 19:02:42,910 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 19:02:42,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:42,958 INFO L225 Difference]: With dead ends: 26356 [2022-04-18 19:02:42,958 INFO L226 Difference]: Without dead ends: 26349 [2022-04-18 19:02:42,959 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=569, Invalid=1783, Unknown=0, NotChecked=0, Total=2352 [2022-04-18 19:02:42,960 INFO L913 BasicCegarLoop]: 278 mSDtfsCounter, 1032 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 4234 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 4835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 4234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:42,960 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 1305 Invalid, 4835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 4234 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:02:42,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26349 states. [2022-04-18 19:02:43,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26349 to 14400. [2022-04-18 19:02:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14400 states, 14357 states have (on average 2.179076408720485) internal successors, (31285), 14399 states have internal predecessors, (31285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:43,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14400 states to 14400 states and 31285 transitions. [2022-04-18 19:02:43,324 INFO L78 Accepts]: Start accepts. Automaton has 14400 states and 31285 transitions. Word has length 32 [2022-04-18 19:02:43,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:43,324 INFO L478 AbstractCegarLoop]: Abstraction has 14400 states and 31285 transitions. [2022-04-18 19:02:43,324 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 19:02:43,324 INFO L276 IsEmpty]: Start isEmpty. Operand 14400 states and 31285 transitions. [2022-04-18 19:02:43,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:43,329 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:43,330 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 19:02:43,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 19:02:43,330 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:43,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:43,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1562529549, now seen corresponding path program 4 times [2022-04-18 19:02:43,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:43,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480032597] [2022-04-18 19:02:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:43,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:44,005 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 19:02:44,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:44,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480032597] [2022-04-18 19:02:44,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480032597] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:44,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:44,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:44,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805972533] [2022-04-18 19:02:44,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:44,007 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:44,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:44,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:44,007 INFO L87 Difference]: Start difference. First operand 14400 states and 31285 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 19:02:47,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:47,356 INFO L93 Difference]: Finished difference Result 18783 states and 39708 transitions. [2022-04-18 19:02:47,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:02:47,357 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 19:02:47,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:47,386 INFO L225 Difference]: With dead ends: 18783 [2022-04-18 19:02:47,387 INFO L226 Difference]: Without dead ends: 18783 [2022-04-18 19:02:47,387 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:02:47,388 INFO L913 BasicCegarLoop]: 297 mSDtfsCounter, 1062 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 4420 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 4491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:47,388 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 1426 Invalid, 4491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 4420 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:02:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18783 states. [2022-04-18 19:02:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18783 to 14700. [2022-04-18 19:02:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14700 states, 14657 states have (on average 2.1782083646039436) internal successors, (31926), 14699 states have internal predecessors, (31926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14700 states to 14700 states and 31926 transitions. [2022-04-18 19:02:47,700 INFO L78 Accepts]: Start accepts. Automaton has 14700 states and 31926 transitions. Word has length 32 [2022-04-18 19:02:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:47,700 INFO L478 AbstractCegarLoop]: Abstraction has 14700 states and 31926 transitions. [2022-04-18 19:02:47,700 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 19:02:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 14700 states and 31926 transitions. [2022-04-18 19:02:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:47,706 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:47,706 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 19:02:47,706 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 19:02:47,707 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:47,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:47,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1562752749, now seen corresponding path program 5 times [2022-04-18 19:02:47,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:47,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050085889] [2022-04-18 19:02:47,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:47,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:48,247 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 19:02:48,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:48,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050085889] [2022-04-18 19:02:48,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050085889] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:48,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:48,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:02:48,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763269130] [2022-04-18 19:02:48,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:48,248 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:02:48,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:48,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:02:48,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:02:48,249 INFO L87 Difference]: Start difference. First operand 14700 states and 31926 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 19:02:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:50,791 INFO L93 Difference]: Finished difference Result 21302 states and 45922 transitions. [2022-04-18 19:02:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:02:50,791 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 19:02:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:50,827 INFO L225 Difference]: With dead ends: 21302 [2022-04-18 19:02:50,828 INFO L226 Difference]: Without dead ends: 21302 [2022-04-18 19:02:50,828 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:02:50,828 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 650 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 3817 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 3851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 3817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:50,829 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [650 Valid, 1220 Invalid, 3851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 3817 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:02:50,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21302 states. [2022-04-18 19:02:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21302 to 16828. [2022-04-18 19:02:51,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16828 states, 16785 states have (on average 2.1766458147155197) internal successors, (36535), 16827 states have internal predecessors, (36535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:51,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16828 states to 16828 states and 36535 transitions. [2022-04-18 19:02:51,122 INFO L78 Accepts]: Start accepts. Automaton has 16828 states and 36535 transitions. Word has length 32 [2022-04-18 19:02:51,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:51,122 INFO L478 AbstractCegarLoop]: Abstraction has 16828 states and 36535 transitions. [2022-04-18 19:02:51,123 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 19:02:51,123 INFO L276 IsEmpty]: Start isEmpty. Operand 16828 states and 36535 transitions. [2022-04-18 19:02:51,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:51,135 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:51,135 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 19:02:51,135 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 19:02:51,135 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:51,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:51,136 INFO L85 PathProgramCache]: Analyzing trace with hash 954569437, now seen corresponding path program 6 times [2022-04-18 19:02:51,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:51,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261191759] [2022-04-18 19:02:51,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:51,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:51,919 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 19:02:51,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:51,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261191759] [2022-04-18 19:02:51,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261191759] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:51,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:51,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:51,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705260449] [2022-04-18 19:02:51,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:51,920 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:51,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:51,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:51,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:51,921 INFO L87 Difference]: Start difference. First operand 16828 states and 36535 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 19:02:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:54,314 INFO L93 Difference]: Finished difference Result 20365 states and 43229 transitions. [2022-04-18 19:02:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:02:54,314 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-04-18 19:02:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:54,350 INFO L225 Difference]: With dead ends: 20365 [2022-04-18 19:02:54,350 INFO L226 Difference]: Without dead ends: 20365 [2022-04-18 19:02:54,350 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=706, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:02:54,351 INFO L913 BasicCegarLoop]: 269 mSDtfsCounter, 747 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 3073 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 3073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:54,351 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 1481 Invalid, 3154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 3073 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:02:54,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20365 states. [2022-04-18 19:02:54,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20365 to 16822. [2022-04-18 19:02:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16822 states, 16779 states have (on average 2.1767089814649263) internal successors, (36523), 16821 states have internal predecessors, (36523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:54,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16822 states to 16822 states and 36523 transitions. [2022-04-18 19:02:54,657 INFO L78 Accepts]: Start accepts. Automaton has 16822 states and 36523 transitions. Word has length 32 [2022-04-18 19:02:54,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:54,657 INFO L478 AbstractCegarLoop]: Abstraction has 16822 states and 36523 transitions. [2022-04-18 19:02:54,657 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 19:02:54,657 INFO L276 IsEmpty]: Start isEmpty. Operand 16822 states and 36523 transitions. [2022-04-18 19:02:54,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:54,661 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:54,661 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, 1] [2022-04-18 19:02:54,661 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 19:02:54,661 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:54,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:54,662 INFO L85 PathProgramCache]: Analyzing trace with hash 954346237, now seen corresponding path program 7 times [2022-04-18 19:02:54,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:54,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242061030] [2022-04-18 19:02:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:54,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:55,337 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 19:02:55,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:55,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242061030] [2022-04-18 19:02:55,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242061030] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:55,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:55,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:55,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576344131] [2022-04-18 19:02:55,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:55,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:55,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:55,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:55,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:55,343 INFO L87 Difference]: Start difference. First operand 16822 states and 36523 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 19:02:57,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:57,882 INFO L93 Difference]: Finished difference Result 20323 states and 43142 transitions. [2022-04-18 19:02:57,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:02:57,882 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 19:02:57,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:57,918 INFO L225 Difference]: With dead ends: 20323 [2022-04-18 19:02:57,918 INFO L226 Difference]: Without dead ends: 20323 [2022-04-18 19:02:57,918 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=224, Invalid=706, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:02:57,919 INFO L913 BasicCegarLoop]: 269 mSDtfsCounter, 835 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 3137 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 3224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:57,919 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [835 Valid, 1258 Invalid, 3224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3137 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:02:57,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20323 states. [2022-04-18 19:02:58,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20323 to 16822. [2022-04-18 19:02:58,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16822 states, 16779 states have (on average 2.1767089814649263) internal successors, (36523), 16821 states have internal predecessors, (36523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:58,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16822 states to 16822 states and 36523 transitions. [2022-04-18 19:02:58,220 INFO L78 Accepts]: Start accepts. Automaton has 16822 states and 36523 transitions. Word has length 32 [2022-04-18 19:02:58,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:58,220 INFO L478 AbstractCegarLoop]: Abstraction has 16822 states and 36523 transitions. [2022-04-18 19:02:58,220 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 19:02:58,221 INFO L276 IsEmpty]: Start isEmpty. Operand 16822 states and 36523 transitions. [2022-04-18 19:02:58,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:02:58,225 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:58,225 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 19:02:58,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 19:02:58,225 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:02:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:58,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1150292785, now seen corresponding path program 8 times [2022-04-18 19:02:58,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:58,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571250082] [2022-04-18 19:02:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:58,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:02:58,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:58,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571250082] [2022-04-18 19:02:58,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571250082] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:02:58,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:02:58,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:02:58,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828310117] [2022-04-18 19:02:58,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:02:58,938 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:02:58,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:02:58,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:02:58,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:02:58,939 INFO L87 Difference]: Start difference. First operand 16822 states and 36523 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 19:03:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:02,817 INFO L93 Difference]: Finished difference Result 20206 states and 42908 transitions. [2022-04-18 19:03:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:03:02,818 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-04-18 19:03:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:02,852 INFO L225 Difference]: With dead ends: 20206 [2022-04-18 19:03:02,852 INFO L226 Difference]: Without dead ends: 20206 [2022-04-18 19:03:02,853 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:03:02,854 INFO L913 BasicCegarLoop]: 272 mSDtfsCounter, 980 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 5470 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 5549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 5470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:02,854 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 1294 Invalid, 5549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 5470 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-18 19:03:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20206 states. [2022-04-18 19:03:03,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20206 to 16518. [2022-04-18 19:03:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16518 states, 16475 states have (on average 2.1774810318664644) internal successors, (35874), 16517 states have internal predecessors, (35874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:03,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16518 states to 16518 states and 35874 transitions. [2022-04-18 19:03:03,219 INFO L78 Accepts]: Start accepts. Automaton has 16518 states and 35874 transitions. Word has length 32 [2022-04-18 19:03:03,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:03,219 INFO L478 AbstractCegarLoop]: Abstraction has 16518 states and 35874 transitions. [2022-04-18 19:03:03,219 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 19:03:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 16518 states and 35874 transitions. [2022-04-18 19:03:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:03,223 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:03,223 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 19:03:03,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 19:03:03,223 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:03,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:03,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1150069585, now seen corresponding path program 9 times [2022-04-18 19:03:03,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:03,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391238699] [2022-04-18 19:03:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:03,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:03,842 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 19:03:03,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:03,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391238699] [2022-04-18 19:03:03,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391238699] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:03,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:03,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107413542] [2022-04-18 19:03:03,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:03,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:03,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:03,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:03,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:03,844 INFO L87 Difference]: Start difference. First operand 16518 states and 35874 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 19:03:06,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:06,312 INFO L93 Difference]: Finished difference Result 19953 states and 42361 transitions. [2022-04-18 19:03:06,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:03:06,313 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 19:03:06,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:06,345 INFO L225 Difference]: With dead ends: 19953 [2022-04-18 19:03:06,346 INFO L226 Difference]: Without dead ends: 19953 [2022-04-18 19:03:06,346 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:03:06,346 INFO L913 BasicCegarLoop]: 270 mSDtfsCounter, 781 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 3313 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 3389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:06,347 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [781 Valid, 1486 Invalid, 3389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3313 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:03:06,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19953 states. [2022-04-18 19:03:06,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19953 to 16518. [2022-04-18 19:03:06,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16518 states, 16475 states have (on average 2.1774810318664644) internal successors, (35874), 16517 states have internal predecessors, (35874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16518 states to 16518 states and 35874 transitions. [2022-04-18 19:03:06,661 INFO L78 Accepts]: Start accepts. Automaton has 16518 states and 35874 transitions. Word has length 32 [2022-04-18 19:03:06,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:06,661 INFO L478 AbstractCegarLoop]: Abstraction has 16518 states and 35874 transitions. [2022-04-18 19:03:06,662 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 19:03:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand 16518 states and 35874 transitions. [2022-04-18 19:03:06,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:06,666 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:06,666 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 19:03:06,667 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 19:03:06,667 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:06,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 826539325, now seen corresponding path program 10 times [2022-04-18 19:03:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:06,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63426945] [2022-04-18 19:03:06,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:06,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:07,374 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 19:03:07,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:07,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63426945] [2022-04-18 19:03:07,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63426945] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:07,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:07,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:07,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709511622] [2022-04-18 19:03:07,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:07,375 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:07,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:07,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:07,376 INFO L87 Difference]: Start difference. First operand 16518 states and 35874 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 19:03:11,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:11,153 INFO L93 Difference]: Finished difference Result 19849 states and 42150 transitions. [2022-04-18 19:03:11,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:03:11,154 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 19:03:11,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:11,186 INFO L225 Difference]: With dead ends: 19849 [2022-04-18 19:03:11,186 INFO L226 Difference]: Without dead ends: 19849 [2022-04-18 19:03:11,186 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=231, Invalid=699, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:03:11,187 INFO L913 BasicCegarLoop]: 272 mSDtfsCounter, 884 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 5379 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 5448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 5379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:11,187 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [884 Valid, 1401 Invalid, 5448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 5379 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-18 19:03:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19849 states. [2022-04-18 19:03:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19849 to 16191. [2022-04-18 19:03:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16191 states, 16148 states have (on average 2.1751919742382957) internal successors, (35125), 16190 states have internal predecessors, (35125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:11,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16191 states to 16191 states and 35125 transitions. [2022-04-18 19:03:11,503 INFO L78 Accepts]: Start accepts. Automaton has 16191 states and 35125 transitions. Word has length 32 [2022-04-18 19:03:11,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:11,504 INFO L478 AbstractCegarLoop]: Abstraction has 16191 states and 35125 transitions. [2022-04-18 19:03:11,504 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 19:03:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16191 states and 35125 transitions. [2022-04-18 19:03:11,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:11,508 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:11,508 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, 1] [2022-04-18 19:03:11,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 19:03:11,508 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:11,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:11,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1871466099, now seen corresponding path program 6 times [2022-04-18 19:03:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:11,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921573829] [2022-04-18 19:03:11,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:11,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:12,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:12,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921573829] [2022-04-18 19:03:12,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921573829] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:12,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:12,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:12,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2354031] [2022-04-18 19:03:12,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:12,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:12,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:12,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:12,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:12,135 INFO L87 Difference]: Start difference. First operand 16191 states and 35125 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 19:03:15,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:15,419 INFO L93 Difference]: Finished difference Result 30470 states and 65724 transitions. [2022-04-18 19:03:15,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:03:15,420 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 19:03:15,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:15,478 INFO L225 Difference]: With dead ends: 30470 [2022-04-18 19:03:15,478 INFO L226 Difference]: Without dead ends: 30466 [2022-04-18 19:03:15,478 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=379, Invalid=881, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:03:15,479 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 753 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 3474 mSolverCounterSat, 734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 4208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 734 IncrementalHoareTripleChecker+Valid, 3474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:15,479 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [753 Valid, 769 Invalid, 4208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [734 Valid, 3474 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:03:15,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30466 states. [2022-04-18 19:03:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30466 to 18136. [2022-04-18 19:03:15,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18136 states, 18093 states have (on average 2.1881390593047034) internal successors, (39590), 18135 states have internal predecessors, (39590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18136 states to 18136 states and 39590 transitions. [2022-04-18 19:03:15,842 INFO L78 Accepts]: Start accepts. Automaton has 18136 states and 39590 transitions. Word has length 32 [2022-04-18 19:03:15,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:15,842 INFO L478 AbstractCegarLoop]: Abstraction has 18136 states and 39590 transitions. [2022-04-18 19:03:15,843 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 19:03:15,843 INFO L276 IsEmpty]: Start isEmpty. Operand 18136 states and 39590 transitions. [2022-04-18 19:03:15,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:15,847 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:15,847 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 19:03:15,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-18 19:03:15,848 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:15,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:15,848 INFO L85 PathProgramCache]: Analyzing trace with hash -326971613, now seen corresponding path program 11 times [2022-04-18 19:03:15,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:15,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167864085] [2022-04-18 19:03:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:15,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:16,492 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 19:03:16,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:16,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167864085] [2022-04-18 19:03:16,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167864085] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:16,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:16,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:16,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128143659] [2022-04-18 19:03:16,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:16,493 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:16,493 INFO L87 Difference]: Start difference. First operand 18136 states and 39590 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 19:03:19,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:19,747 INFO L93 Difference]: Finished difference Result 25623 states and 55171 transitions. [2022-04-18 19:03:19,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:03:19,747 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 19:03:19,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:19,795 INFO L225 Difference]: With dead ends: 25623 [2022-04-18 19:03:19,795 INFO L226 Difference]: Without dead ends: 25623 [2022-04-18 19:03:19,796 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:03:19,796 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 808 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 4480 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 4594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 4480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:19,796 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [808 Valid, 1046 Invalid, 4594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 4480 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:03:19,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25623 states. [2022-04-18 19:03:20,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25623 to 16290. [2022-04-18 19:03:20,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16290 states, 16247 states have (on average 2.174678402166554) internal successors, (35332), 16289 states have internal predecessors, (35332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16290 states to 16290 states and 35332 transitions. [2022-04-18 19:03:20,134 INFO L78 Accepts]: Start accepts. Automaton has 16290 states and 35332 transitions. Word has length 32 [2022-04-18 19:03:20,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:20,134 INFO L478 AbstractCegarLoop]: Abstraction has 16290 states and 35332 transitions. [2022-04-18 19:03:20,135 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 19:03:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 16290 states and 35332 transitions. [2022-04-18 19:03:20,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:20,138 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:20,138 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, 1] [2022-04-18 19:03:20,138 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 19:03:20,139 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:20,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:20,139 INFO L85 PathProgramCache]: Analyzing trace with hash -524929275, now seen corresponding path program 7 times [2022-04-18 19:03:20,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:20,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456594855] [2022-04-18 19:03:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:20,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:20,706 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 19:03:20,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:20,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456594855] [2022-04-18 19:03:20,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456594855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:20,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:20,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:20,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225733615] [2022-04-18 19:03:20,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:20,707 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:20,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:20,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:20,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:20,708 INFO L87 Difference]: Start difference. First operand 16290 states and 35332 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 19:03:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:24,281 INFO L93 Difference]: Finished difference Result 29562 states and 63873 transitions. [2022-04-18 19:03:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-04-18 19:03:24,281 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 19:03:24,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:24,337 INFO L225 Difference]: With dead ends: 29562 [2022-04-18 19:03:24,337 INFO L226 Difference]: Without dead ends: 29558 [2022-04-18 19:03:24,338 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=562, Invalid=1330, Unknown=0, NotChecked=0, Total=1892 [2022-04-18 19:03:24,338 INFO L913 BasicCegarLoop]: 81 mSDtfsCounter, 563 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 3317 mSolverCounterSat, 713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 713 IncrementalHoareTripleChecker+Valid, 3317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:24,339 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 294 Invalid, 4030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [713 Valid, 3317 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:03:24,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29558 states. [2022-04-18 19:03:24,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29558 to 18082. [2022-04-18 19:03:24,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18082 states, 18039 states have (on average 2.1887576916680525) internal successors, (39483), 18081 states have internal predecessors, (39483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:24,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18082 states to 18082 states and 39483 transitions. [2022-04-18 19:03:24,673 INFO L78 Accepts]: Start accepts. Automaton has 18082 states and 39483 transitions. Word has length 32 [2022-04-18 19:03:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:24,673 INFO L478 AbstractCegarLoop]: Abstraction has 18082 states and 39483 transitions. [2022-04-18 19:03:24,674 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 19:03:24,674 INFO L276 IsEmpty]: Start isEmpty. Operand 18082 states and 39483 transitions. [2022-04-18 19:03:24,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:24,678 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:24,678 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 19:03:24,678 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 19:03:24,678 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:24,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:24,679 INFO L85 PathProgramCache]: Analyzing trace with hash -14919493, now seen corresponding path program 12 times [2022-04-18 19:03:24,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:24,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056542315] [2022-04-18 19:03:24,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:25,258 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 19:03:25,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:25,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056542315] [2022-04-18 19:03:25,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056542315] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:25,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:25,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:25,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080636251] [2022-04-18 19:03:25,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:25,259 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:25,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:25,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:25,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:25,259 INFO L87 Difference]: Start difference. First operand 18082 states and 39483 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 19:03:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:27,943 INFO L93 Difference]: Finished difference Result 24583 states and 53061 transitions. [2022-04-18 19:03:27,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:03:27,944 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 19:03:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:27,992 INFO L225 Difference]: With dead ends: 24583 [2022-04-18 19:03:27,992 INFO L226 Difference]: Without dead ends: 24583 [2022-04-18 19:03:27,993 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:03:27,993 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 868 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 3299 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 3430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 3299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:27,994 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 785 Invalid, 3430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 3299 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:03:28,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24583 states. [2022-04-18 19:03:28,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24583 to 16070. [2022-04-18 19:03:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16070 states, 16027 states have (on average 2.1751419479628127) internal successors, (34861), 16069 states have internal predecessors, (34861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16070 states to 16070 states and 34861 transitions. [2022-04-18 19:03:28,297 INFO L78 Accepts]: Start accepts. Automaton has 16070 states and 34861 transitions. Word has length 32 [2022-04-18 19:03:28,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:28,297 INFO L478 AbstractCegarLoop]: Abstraction has 16070 states and 34861 transitions. [2022-04-18 19:03:28,297 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 19:03:28,297 INFO L276 IsEmpty]: Start isEmpty. Operand 16070 states and 34861 transitions. [2022-04-18 19:03:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:28,300 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:28,301 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 19:03:28,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-18 19:03:28,301 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:28,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash -507250345, now seen corresponding path program 8 times [2022-04-18 19:03:28,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:28,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128463415] [2022-04-18 19:03:28,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:28,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:29,003 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 19:03:29,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:29,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128463415] [2022-04-18 19:03:29,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128463415] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:29,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:29,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:29,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830486467] [2022-04-18 19:03:29,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:29,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:29,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:29,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:29,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:29,005 INFO L87 Difference]: Start difference. First operand 16070 states and 34861 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 19:03:32,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:32,553 INFO L93 Difference]: Finished difference Result 21332 states and 45642 transitions. [2022-04-18 19:03:32,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-04-18 19:03:32,554 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 19:03:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:32,591 INFO L225 Difference]: With dead ends: 21332 [2022-04-18 19:03:32,591 INFO L226 Difference]: Without dead ends: 21328 [2022-04-18 19:03:32,592 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=468, Invalid=1092, Unknown=0, NotChecked=0, Total=1560 [2022-04-18 19:03:32,592 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 655 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 757 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:32,592 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [655 Valid, 734 Invalid, 3776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [757 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:03:32,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21328 states. [2022-04-18 19:03:32,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21328 to 16728. [2022-04-18 19:03:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16728 states, 16685 states have (on average 2.181839976026371) internal successors, (36404), 16727 states have internal predecessors, (36404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:32,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16728 states to 16728 states and 36404 transitions. [2022-04-18 19:03:32,871 INFO L78 Accepts]: Start accepts. Automaton has 16728 states and 36404 transitions. Word has length 32 [2022-04-18 19:03:32,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:32,871 INFO L478 AbstractCegarLoop]: Abstraction has 16728 states and 36404 transitions. [2022-04-18 19:03:32,871 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 19:03:32,871 INFO L276 IsEmpty]: Start isEmpty. Operand 16728 states and 36404 transitions. [2022-04-18 19:03:32,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:32,875 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:32,875 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 19:03:32,875 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-18 19:03:32,875 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:32,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:32,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2759437, now seen corresponding path program 13 times [2022-04-18 19:03:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:32,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973214368] [2022-04-18 19:03:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:32,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:33,432 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 19:03:33,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:33,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973214368] [2022-04-18 19:03:33,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973214368] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:33,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:33,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:33,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945587944] [2022-04-18 19:03:33,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:33,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:33,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:33,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:33,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:33,433 INFO L87 Difference]: Start difference. First operand 16728 states and 36404 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 19:03:36,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:36,112 INFO L93 Difference]: Finished difference Result 21094 states and 45182 transitions. [2022-04-18 19:03:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:03:36,113 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 19:03:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:36,152 INFO L225 Difference]: With dead ends: 21094 [2022-04-18 19:03:36,152 INFO L226 Difference]: Without dead ends: 21094 [2022-04-18 19:03:36,153 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:03:36,153 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 806 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 3598 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 3598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:36,153 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [806 Valid, 1156 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 3598 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:03:36,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21094 states. [2022-04-18 19:03:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21094 to 16720. [2022-04-18 19:03:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16720 states, 16677 states have (on average 2.1818072794867183) internal successors, (36386), 16719 states have internal predecessors, (36386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16720 states to 16720 states and 36386 transitions. [2022-04-18 19:03:36,515 INFO L78 Accepts]: Start accepts. Automaton has 16720 states and 36386 transitions. Word has length 32 [2022-04-18 19:03:36,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:36,515 INFO L478 AbstractCegarLoop]: Abstraction has 16720 states and 36386 transitions. [2022-04-18 19:03:36,516 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 19:03:36,516 INFO L276 IsEmpty]: Start isEmpty. Operand 16720 states and 36386 transitions. [2022-04-18 19:03:36,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:36,519 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:36,520 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 19:03:36,520 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-18 19:03:36,521 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:36,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:36,521 INFO L85 PathProgramCache]: Analyzing trace with hash 37486487, now seen corresponding path program 9 times [2022-04-18 19:03:36,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:36,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634729385] [2022-04-18 19:03:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:36,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:37,140 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 19:03:37,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:37,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634729385] [2022-04-18 19:03:37,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634729385] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:37,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:37,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:37,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133625909] [2022-04-18 19:03:37,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:37,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:37,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:37,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:37,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:37,142 INFO L87 Difference]: Start difference. First operand 16720 states and 36386 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 19:03:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:40,437 INFO L93 Difference]: Finished difference Result 28513 states and 61040 transitions. [2022-04-18 19:03:40,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-04-18 19:03:40,438 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 19:03:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:40,493 INFO L225 Difference]: With dead ends: 28513 [2022-04-18 19:03:40,493 INFO L226 Difference]: Without dead ends: 28509 [2022-04-18 19:03:40,493 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=390, Invalid=942, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:03:40,494 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 853 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 3059 mSolverCounterSat, 777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 3836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 777 IncrementalHoareTripleChecker+Valid, 3059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:40,494 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 1042 Invalid, 3836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [777 Valid, 3059 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:03:40,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28509 states. [2022-04-18 19:03:40,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28509 to 17604. [2022-04-18 19:03:40,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17604 states, 17561 states have (on average 2.188201127498434) internal successors, (38427), 17603 states have internal predecessors, (38427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17604 states to 17604 states and 38427 transitions. [2022-04-18 19:03:40,815 INFO L78 Accepts]: Start accepts. Automaton has 17604 states and 38427 transitions. Word has length 32 [2022-04-18 19:03:40,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:40,815 INFO L478 AbstractCegarLoop]: Abstraction has 17604 states and 38427 transitions. [2022-04-18 19:03:40,815 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 19:03:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 17604 states and 38427 transitions. [2022-04-18 19:03:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:40,820 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:40,820 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 19:03:40,820 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-18 19:03:40,820 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:40,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:40,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2134016071, now seen corresponding path program 14 times [2022-04-18 19:03:40,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:40,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418524125] [2022-04-18 19:03:40,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:40,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:41,547 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 19:03:41,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:41,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418524125] [2022-04-18 19:03:41,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418524125] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:41,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:41,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:41,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827181149] [2022-04-18 19:03:41,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:41,548 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:41,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:41,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:41,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:41,548 INFO L87 Difference]: Start difference. First operand 17604 states and 38427 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 19:03:44,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:44,760 INFO L93 Difference]: Finished difference Result 24644 states and 52959 transitions. [2022-04-18 19:03:44,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:03:44,761 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 19:03:44,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:44,808 INFO L225 Difference]: With dead ends: 24644 [2022-04-18 19:03:44,808 INFO L226 Difference]: Without dead ends: 24644 [2022-04-18 19:03:44,808 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:03:44,808 INFO L913 BasicCegarLoop]: 283 mSDtfsCounter, 769 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 4203 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 4284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 4203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:44,809 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 1404 Invalid, 4284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 4203 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:03:44,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24644 states. [2022-04-18 19:03:45,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24644 to 17598. [2022-04-18 19:03:45,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17598 states, 17555 states have (on average 2.188265451438337) internal successors, (38415), 17597 states have internal predecessors, (38415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17598 states to 17598 states and 38415 transitions. [2022-04-18 19:03:45,103 INFO L78 Accepts]: Start accepts. Automaton has 17598 states and 38415 transitions. Word has length 32 [2022-04-18 19:03:45,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:45,104 INFO L478 AbstractCegarLoop]: Abstraction has 17598 states and 38415 transitions. [2022-04-18 19:03:45,104 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 19:03:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand 17598 states and 38415 transitions. [2022-04-18 19:03:45,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:45,109 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:45,109 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 19:03:45,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-18 19:03:45,109 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:45,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:45,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2133792871, now seen corresponding path program 15 times [2022-04-18 19:03:45,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:45,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345004458] [2022-04-18 19:03:45,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:45,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:45,602 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 19:03:45,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:45,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345004458] [2022-04-18 19:03:45,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345004458] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:45,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:45,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:03:45,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451690058] [2022-04-18 19:03:45,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:45,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:03:45,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:45,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:03:45,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:03:45,604 INFO L87 Difference]: Start difference. First operand 17598 states and 38415 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 19:03:48,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:48,240 INFO L93 Difference]: Finished difference Result 22697 states and 49081 transitions. [2022-04-18 19:03:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:03:48,240 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 19:03:48,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:48,278 INFO L225 Difference]: With dead ends: 22697 [2022-04-18 19:03:48,278 INFO L226 Difference]: Without dead ends: 22697 [2022-04-18 19:03:48,279 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:03:48,279 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 641 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 4272 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 4294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 4272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:48,279 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [641 Valid, 1042 Invalid, 4294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 4272 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:03:48,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22697 states. [2022-04-18 19:03:48,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22697 to 17959. [2022-04-18 19:03:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17959 states, 17916 states have (on average 2.188769814690779) internal successors, (39214), 17958 states have internal predecessors, (39214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17959 states to 17959 states and 39214 transitions. [2022-04-18 19:03:48,573 INFO L78 Accepts]: Start accepts. Automaton has 17959 states and 39214 transitions. Word has length 32 [2022-04-18 19:03:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:48,573 INFO L478 AbstractCegarLoop]: Abstraction has 17959 states and 39214 transitions. [2022-04-18 19:03:48,573 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 19:03:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 17959 states and 39214 transitions. [2022-04-18 19:03:48,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:48,578 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:48,578 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 19:03:48,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-18 19:03:48,578 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:48,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:48,579 INFO L85 PathProgramCache]: Analyzing trace with hash -980945023, now seen corresponding path program 10 times [2022-04-18 19:03:48,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:48,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709948415] [2022-04-18 19:03:48,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:48,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:03:49,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:49,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709948415] [2022-04-18 19:03:49,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709948415] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:49,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:49,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:49,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020777366] [2022-04-18 19:03:49,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:49,187 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:49,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:49,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:49,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:49,188 INFO L87 Difference]: Start difference. First operand 17959 states and 39214 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 19:03:52,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:52,947 INFO L93 Difference]: Finished difference Result 31792 states and 68460 transitions. [2022-04-18 19:03:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-18 19:03:52,948 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 19:03:52,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:53,010 INFO L225 Difference]: With dead ends: 31792 [2022-04-18 19:03:53,011 INFO L226 Difference]: Without dead ends: 31785 [2022-04-18 19:03:53,011 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=513, Invalid=1293, Unknown=0, NotChecked=0, Total=1806 [2022-04-18 19:03:53,012 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 1080 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 2777 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 3753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 2777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:53,012 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 1108 Invalid, 3753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 2777 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:03:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31785 states. [2022-04-18 19:03:53,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31785 to 19923. [2022-04-18 19:03:53,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19923 states, 19880 states have (on average 2.201659959758551) internal successors, (43769), 19922 states have internal predecessors, (43769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:53,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19923 states to 19923 states and 43769 transitions. [2022-04-18 19:03:53,375 INFO L78 Accepts]: Start accepts. Automaton has 19923 states and 43769 transitions. Word has length 32 [2022-04-18 19:03:53,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:53,375 INFO L478 AbstractCegarLoop]: Abstraction has 19923 states and 43769 transitions. [2022-04-18 19:03:53,375 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 19:03:53,375 INFO L276 IsEmpty]: Start isEmpty. Operand 19923 states and 43769 transitions. [2022-04-18 19:03:53,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:53,381 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:53,381 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 19:03:53,381 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-18 19:03:53,381 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:53,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:53,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1169129471, now seen corresponding path program 11 times [2022-04-18 19:03:53,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:53,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293493099] [2022-04-18 19:03:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:53,841 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 19:03:53,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:53,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293493099] [2022-04-18 19:03:53,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293493099] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:53,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:53,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:53,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214908158] [2022-04-18 19:03:53,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:53,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:53,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:53,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:53,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:53,843 INFO L87 Difference]: Start difference. First operand 19923 states and 43769 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 19:03:58,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:03:58,255 INFO L93 Difference]: Finished difference Result 34984 states and 75754 transitions. [2022-04-18 19:03:58,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-04-18 19:03:58,256 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 19:03:58,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:03:58,327 INFO L225 Difference]: With dead ends: 34984 [2022-04-18 19:03:58,327 INFO L226 Difference]: Without dead ends: 34977 [2022-04-18 19:03:58,327 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=528, Invalid=1364, Unknown=0, NotChecked=0, Total=1892 [2022-04-18 19:03:58,328 INFO L913 BasicCegarLoop]: 261 mSDtfsCounter, 926 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 4509 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 5079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 4509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:03:58,328 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 1278 Invalid, 5079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 4509 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:03:58,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34977 states. [2022-04-18 19:03:58,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34977 to 19915. [2022-04-18 19:03:58,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19915 states, 19872 states have (on average 2.2017411433172303) internal successors, (43753), 19914 states have internal predecessors, (43753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:03:58,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19915 states to 19915 states and 43753 transitions. [2022-04-18 19:03:58,732 INFO L78 Accepts]: Start accepts. Automaton has 19915 states and 43753 transitions. Word has length 32 [2022-04-18 19:03:58,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:03:58,732 INFO L478 AbstractCegarLoop]: Abstraction has 19915 states and 43753 transitions. [2022-04-18 19:03:58,732 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 19:03:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 19915 states and 43753 transitions. [2022-04-18 19:03:58,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:03:58,737 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:03:58,738 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, 1] [2022-04-18 19:03:58,738 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-18 19:03:58,738 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:03:58,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:03:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2087706511, now seen corresponding path program 12 times [2022-04-18 19:03:58,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:03:58,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348180855] [2022-04-18 19:03:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:03:58,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:03:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:03:59,108 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 19:03:59,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:03:59,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348180855] [2022-04-18 19:03:59,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348180855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:03:59,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:03:59,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:03:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425235269] [2022-04-18 19:03:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:03:59,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:03:59,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:03:59,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:03:59,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:03:59,110 INFO L87 Difference]: Start difference. First operand 19915 states and 43753 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 19:04:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:03,347 INFO L93 Difference]: Finished difference Result 37368 states and 80234 transitions. [2022-04-18 19:04:03,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-04-18 19:04:03,348 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 19:04:03,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:03,427 INFO L225 Difference]: With dead ends: 37368 [2022-04-18 19:04:03,427 INFO L226 Difference]: Without dead ends: 37361 [2022-04-18 19:04:03,428 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=568, Invalid=1784, Unknown=0, NotChecked=0, Total=2352 [2022-04-18 19:04:03,428 INFO L913 BasicCegarLoop]: 317 mSDtfsCounter, 1283 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 3985 mSolverCounterSat, 941 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 4926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 3985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:03,428 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1283 Valid, 1603 Invalid, 4926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [941 Valid, 3985 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:04:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37361 states. [2022-04-18 19:04:03,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37361 to 23828. [2022-04-18 19:04:03,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23828 states, 23785 states have (on average 2.2067689720412025) internal successors, (52488), 23827 states have internal predecessors, (52488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23828 states to 23828 states and 52488 transitions. [2022-04-18 19:04:04,085 INFO L78 Accepts]: Start accepts. Automaton has 23828 states and 52488 transitions. Word has length 32 [2022-04-18 19:04:04,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:04,085 INFO L478 AbstractCegarLoop]: Abstraction has 23828 states and 52488 transitions. [2022-04-18 19:04:04,085 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 19:04:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 23828 states and 52488 transitions. [2022-04-18 19:04:04,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:04,090 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:04,090 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 19:04:04,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-18 19:04:04,090 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:04,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:04,091 INFO L85 PathProgramCache]: Analyzing trace with hash 413803219, now seen corresponding path program 16 times [2022-04-18 19:04:04,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:04,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59155768] [2022-04-18 19:04:04,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:04,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:04,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:04,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:04,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59155768] [2022-04-18 19:04:04,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59155768] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:04,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:04,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:04,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649374815] [2022-04-18 19:04:04,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:04,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:04,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:04,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:04,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:04,693 INFO L87 Difference]: Start difference. First operand 23828 states and 52488 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 19:04:07,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:07,940 INFO L93 Difference]: Finished difference Result 29795 states and 64191 transitions. [2022-04-18 19:04:07,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:04:07,941 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 19:04:07,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:07,997 INFO L225 Difference]: With dead ends: 29795 [2022-04-18 19:04:07,997 INFO L226 Difference]: Without dead ends: 29795 [2022-04-18 19:04:07,997 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:04:07,998 INFO L913 BasicCegarLoop]: 336 mSDtfsCounter, 1107 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 4045 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:07,998 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1107 Valid, 1739 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4045 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:04:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29795 states. [2022-04-18 19:04:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29795 to 24101. [2022-04-18 19:04:08,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24101 states, 24058 states have (on average 2.20608529387314) internal successors, (53074), 24100 states have internal predecessors, (53074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24101 states to 24101 states and 53074 transitions. [2022-04-18 19:04:08,427 INFO L78 Accepts]: Start accepts. Automaton has 24101 states and 53074 transitions. Word has length 32 [2022-04-18 19:04:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:08,427 INFO L478 AbstractCegarLoop]: Abstraction has 24101 states and 53074 transitions. [2022-04-18 19:04:08,427 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 19:04:08,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24101 states and 53074 transitions. [2022-04-18 19:04:08,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:08,433 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:08,433 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 19:04:08,433 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-18 19:04:08,433 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:08,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash 413580019, now seen corresponding path program 17 times [2022-04-18 19:04:08,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:08,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184623955] [2022-04-18 19:04:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:08,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:09,059 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 19:04:09,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:09,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184623955] [2022-04-18 19:04:09,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184623955] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:09,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:09,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:09,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395737256] [2022-04-18 19:04:09,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:09,060 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:09,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:09,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:09,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:09,061 INFO L87 Difference]: Start difference. First operand 24101 states and 53074 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 19:04:12,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:12,587 INFO L93 Difference]: Finished difference Result 29749 states and 64096 transitions. [2022-04-18 19:04:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:04:12,588 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 19:04:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:12,645 INFO L225 Difference]: With dead ends: 29749 [2022-04-18 19:04:12,645 INFO L226 Difference]: Without dead ends: 29749 [2022-04-18 19:04:12,646 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:04:12,646 INFO L913 BasicCegarLoop]: 336 mSDtfsCounter, 1086 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 4511 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 4592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 4511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:12,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 1747 Invalid, 4592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 4511 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:04:12,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29749 states. [2022-04-18 19:04:12,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29749 to 23692. [2022-04-18 19:04:13,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23692 states, 23649 states have (on average 2.206182079580532) internal successors, (52174), 23691 states have internal predecessors, (52174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23692 states to 23692 states and 52174 transitions. [2022-04-18 19:04:13,068 INFO L78 Accepts]: Start accepts. Automaton has 23692 states and 52174 transitions. Word has length 32 [2022-04-18 19:04:13,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:13,068 INFO L478 AbstractCegarLoop]: Abstraction has 23692 states and 52174 transitions. [2022-04-18 19:04:13,068 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 19:04:13,068 INFO L276 IsEmpty]: Start isEmpty. Operand 23692 states and 52174 transitions. [2022-04-18 19:04:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:13,073 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:13,073 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 19:04:13,073 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-18 19:04:13,074 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:13,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:13,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1364065091, now seen corresponding path program 18 times [2022-04-18 19:04:13,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:13,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073195698] [2022-04-18 19:04:13,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:13,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:13,649 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 19:04:13,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:13,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073195698] [2022-04-18 19:04:13,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073195698] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:13,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:13,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:13,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948024788] [2022-04-18 19:04:13,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:13,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:13,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:13,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:13,651 INFO L87 Difference]: Start difference. First operand 23692 states and 52174 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 19:04:16,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:16,542 INFO L93 Difference]: Finished difference Result 29208 states and 63023 transitions. [2022-04-18 19:04:16,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:04:16,542 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 19:04:16,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:16,598 INFO L225 Difference]: With dead ends: 29208 [2022-04-18 19:04:16,598 INFO L226 Difference]: Without dead ends: 29208 [2022-04-18 19:04:16,599 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:04:16,600 INFO L913 BasicCegarLoop]: 308 mSDtfsCounter, 857 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 3759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:16,601 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 1580 Invalid, 3759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:04:16,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29208 states. [2022-04-18 19:04:16,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29208 to 23692. [2022-04-18 19:04:16,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23692 states, 23649 states have (on average 2.206182079580532) internal successors, (52174), 23691 states have internal predecessors, (52174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23692 states to 23692 states and 52174 transitions. [2022-04-18 19:04:17,016 INFO L78 Accepts]: Start accepts. Automaton has 23692 states and 52174 transitions. Word has length 32 [2022-04-18 19:04:17,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:17,017 INFO L478 AbstractCegarLoop]: Abstraction has 23692 states and 52174 transitions. [2022-04-18 19:04:17,017 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 19:04:17,017 INFO L276 IsEmpty]: Start isEmpty. Operand 23692 states and 52174 transitions. [2022-04-18 19:04:17,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:17,023 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:17,023 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 19:04:17,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-18 19:04:17,023 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1364288291, now seen corresponding path program 19 times [2022-04-18 19:04:17,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:17,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336069760] [2022-04-18 19:04:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:17,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:17,749 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 19:04:17,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:17,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336069760] [2022-04-18 19:04:17,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336069760] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:17,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:17,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:17,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043196755] [2022-04-18 19:04:17,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:17,750 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:17,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:17,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:17,751 INFO L87 Difference]: Start difference. First operand 23692 states and 52174 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 19:04:20,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:20,845 INFO L93 Difference]: Finished difference Result 29172 states and 62948 transitions. [2022-04-18 19:04:20,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:04:20,846 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 19:04:20,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:20,902 INFO L225 Difference]: With dead ends: 29172 [2022-04-18 19:04:20,903 INFO L226 Difference]: Without dead ends: 29172 [2022-04-18 19:04:20,903 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:04:20,903 INFO L913 BasicCegarLoop]: 308 mSDtfsCounter, 836 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 4058 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 4141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 4058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:20,904 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 1586 Invalid, 4141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 4058 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:04:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29172 states. [2022-04-18 19:04:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29172 to 23684. [2022-04-18 19:04:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23684 states, 23641 states have (on average 2.2062518505985365) internal successors, (52158), 23683 states have internal predecessors, (52158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23684 states to 23684 states and 52158 transitions. [2022-04-18 19:04:21,455 INFO L78 Accepts]: Start accepts. Automaton has 23684 states and 52158 transitions. Word has length 32 [2022-04-18 19:04:21,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:21,455 INFO L478 AbstractCegarLoop]: Abstraction has 23684 states and 52158 transitions. [2022-04-18 19:04:21,455 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 19:04:21,455 INFO L276 IsEmpty]: Start isEmpty. Operand 23684 states and 52158 transitions. [2022-04-18 19:04:21,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:21,460 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:21,460 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 19:04:21,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-18 19:04:21,460 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:21,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:21,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1168341743, now seen corresponding path program 20 times [2022-04-18 19:04:21,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:21,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580422408] [2022-04-18 19:04:21,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:21,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:22,152 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 19:04:22,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:22,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580422408] [2022-04-18 19:04:22,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580422408] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:22,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:22,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:22,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969885282] [2022-04-18 19:04:22,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:22,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:22,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:22,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:22,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:22,154 INFO L87 Difference]: Start difference. First operand 23684 states and 52158 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 19:04:26,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:26,331 INFO L93 Difference]: Finished difference Result 29075 states and 62754 transitions. [2022-04-18 19:04:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:04:26,331 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 19:04:26,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:26,393 INFO L225 Difference]: With dead ends: 29075 [2022-04-18 19:04:26,393 INFO L226 Difference]: Without dead ends: 29075 [2022-04-18 19:04:26,394 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:04:26,394 INFO L913 BasicCegarLoop]: 311 mSDtfsCounter, 982 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 5696 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 5775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 5696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:26,394 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [982 Valid, 1612 Invalid, 5775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 5696 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-18 19:04:26,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29075 states. [2022-04-18 19:04:26,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29075 to 23676. [2022-04-18 19:04:26,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23676 states, 23633 states have (on average 2.2063216688528753) internal successors, (52142), 23675 states have internal predecessors, (52142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:26,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23676 states to 23676 states and 52142 transitions. [2022-04-18 19:04:26,822 INFO L78 Accepts]: Start accepts. Automaton has 23676 states and 52142 transitions. Word has length 32 [2022-04-18 19:04:26,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:26,822 INFO L478 AbstractCegarLoop]: Abstraction has 23676 states and 52142 transitions. [2022-04-18 19:04:26,822 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 19:04:26,822 INFO L276 IsEmpty]: Start isEmpty. Operand 23676 states and 52142 transitions. [2022-04-18 19:04:26,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:26,827 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:26,827 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 19:04:26,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-18 19:04:26,828 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:26,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:26,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1168564943, now seen corresponding path program 21 times [2022-04-18 19:04:26,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:26,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051829355] [2022-04-18 19:04:26,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:26,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:27,675 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 19:04:27,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:27,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051829355] [2022-04-18 19:04:27,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051829355] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:27,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:27,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:27,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530411909] [2022-04-18 19:04:27,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:27,676 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:27,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:27,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:27,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:27,677 INFO L87 Difference]: Start difference. First operand 23676 states and 52142 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 19:04:30,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:30,912 INFO L93 Difference]: Finished difference Result 37943 states and 82599 transitions. [2022-04-18 19:04:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:04:30,913 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 19:04:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:30,992 INFO L225 Difference]: With dead ends: 37943 [2022-04-18 19:04:30,993 INFO L226 Difference]: Without dead ends: 37943 [2022-04-18 19:04:30,993 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=706, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:04:30,993 INFO L913 BasicCegarLoop]: 295 mSDtfsCounter, 834 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 4406 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 4478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 4406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:30,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 1795 Invalid, 4478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 4406 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:04:31,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37943 states. [2022-04-18 19:04:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37943 to 24708. [2022-04-18 19:04:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24708 states, 24665 states have (on average 2.2048246503142104) internal successors, (54382), 24707 states have internal predecessors, (54382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24708 states to 24708 states and 54382 transitions. [2022-04-18 19:04:31,489 INFO L78 Accepts]: Start accepts. Automaton has 24708 states and 54382 transitions. Word has length 32 [2022-04-18 19:04:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:31,489 INFO L478 AbstractCegarLoop]: Abstraction has 24708 states and 54382 transitions. [2022-04-18 19:04:31,489 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 19:04:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 24708 states and 54382 transitions. [2022-04-18 19:04:31,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:31,494 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:31,494 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 19:04:31,494 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-18 19:04:31,495 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:31,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:31,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1492095203, now seen corresponding path program 22 times [2022-04-18 19:04:31,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:31,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384068078] [2022-04-18 19:04:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:31,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:32,117 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 19:04:32,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:32,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384068078] [2022-04-18 19:04:32,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384068078] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:32,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:32,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:32,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659131097] [2022-04-18 19:04:32,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:32,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:32,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:32,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:32,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:32,119 INFO L87 Difference]: Start difference. First operand 24708 states and 54382 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 19:04:35,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:35,327 INFO L93 Difference]: Finished difference Result 30075 states and 64927 transitions. [2022-04-18 19:04:35,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:04:35,328 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 19:04:35,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:35,390 INFO L225 Difference]: With dead ends: 30075 [2022-04-18 19:04:35,390 INFO L226 Difference]: Without dead ends: 30075 [2022-04-18 19:04:35,390 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:04:35,391 INFO L913 BasicCegarLoop]: 311 mSDtfsCounter, 972 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 4178 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 4267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 4178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:35,391 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 1592 Invalid, 4267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 4178 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:04:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30075 states. [2022-04-18 19:04:35,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30075 to 24416. [2022-04-18 19:04:35,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24416 states, 24373 states have (on average 2.2055963566241332) internal successors, (53757), 24415 states have internal predecessors, (53757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24416 states to 24416 states and 53757 transitions. [2022-04-18 19:04:35,795 INFO L78 Accepts]: Start accepts. Automaton has 24416 states and 53757 transitions. Word has length 32 [2022-04-18 19:04:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:35,795 INFO L478 AbstractCegarLoop]: Abstraction has 24416 states and 53757 transitions. [2022-04-18 19:04:35,796 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 19:04:35,796 INFO L276 IsEmpty]: Start isEmpty. Operand 24416 states and 53757 transitions. [2022-04-18 19:04:35,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:35,802 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:35,802 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, 1] [2022-04-18 19:04:35,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-18 19:04:35,803 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:35,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:35,803 INFO L85 PathProgramCache]: Analyzing trace with hash -447168429, now seen corresponding path program 13 times [2022-04-18 19:04:35,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:35,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913123534] [2022-04-18 19:04:35,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:35,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:36,444 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 19:04:36,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:36,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913123534] [2022-04-18 19:04:36,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913123534] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:36,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:36,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:36,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992930391] [2022-04-18 19:04:36,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:36,445 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:36,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:36,445 INFO L87 Difference]: Start difference. First operand 24416 states and 53757 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 19:04:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:39,789 INFO L93 Difference]: Finished difference Result 38694 states and 84321 transitions. [2022-04-18 19:04:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:04:39,790 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 19:04:39,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:39,870 INFO L225 Difference]: With dead ends: 38694 [2022-04-18 19:04:39,870 INFO L226 Difference]: Without dead ends: 38690 [2022-04-18 19:04:39,871 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=378, Invalid=882, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:04:39,871 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 705 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 3707 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 4356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 3707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:39,871 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 905 Invalid, 4356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 3707 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:04:39,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38690 states. [2022-04-18 19:04:40,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38690 to 26139. [2022-04-18 19:04:40,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26139 states, 26096 states have (on average 2.213174432863274) internal successors, (57755), 26138 states have internal predecessors, (57755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:40,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26139 states to 26139 states and 57755 transitions. [2022-04-18 19:04:40,457 INFO L78 Accepts]: Start accepts. Automaton has 26139 states and 57755 transitions. Word has length 32 [2022-04-18 19:04:40,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:40,458 INFO L478 AbstractCegarLoop]: Abstraction has 26139 states and 57755 transitions. [2022-04-18 19:04:40,458 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 19:04:40,458 INFO L276 IsEmpty]: Start isEmpty. Operand 26139 states and 57755 transitions. [2022-04-18 19:04:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:40,463 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:40,463 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, 1] [2022-04-18 19:04:40,463 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-18 19:04:40,464 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:40,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:40,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1649361155, now seen corresponding path program 23 times [2022-04-18 19:04:40,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:40,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975390724] [2022-04-18 19:04:40,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:40,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:40,996 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 19:04:40,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:40,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975390724] [2022-04-18 19:04:40,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975390724] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:40,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:40,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:40,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460204600] [2022-04-18 19:04:40,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:40,997 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:40,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:40,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:40,998 INFO L87 Difference]: Start difference. First operand 26139 states and 57755 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 19:04:43,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:43,747 INFO L93 Difference]: Finished difference Result 34246 states and 74614 transitions. [2022-04-18 19:04:43,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:04:43,747 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 19:04:43,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:43,815 INFO L225 Difference]: With dead ends: 34246 [2022-04-18 19:04:43,815 INFO L226 Difference]: Without dead ends: 34246 [2022-04-18 19:04:43,815 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:04:43,816 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 917 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 3596 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 3734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 3596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:43,816 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 1182 Invalid, 3734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 3596 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:04:43,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34246 states. [2022-04-18 19:04:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34246 to 24183. [2022-04-18 19:04:44,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 24140 states have (on average 2.206089478044739) internal successors, (53255), 24182 states have internal predecessors, (53255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:44,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 53255 transitions. [2022-04-18 19:04:44,263 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 53255 transitions. Word has length 32 [2022-04-18 19:04:44,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:44,263 INFO L478 AbstractCegarLoop]: Abstraction has 24183 states and 53255 transitions. [2022-04-18 19:04:44,263 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 19:04:44,263 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 53255 transitions. [2022-04-18 19:04:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:44,268 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:44,268 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 19:04:44,268 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-18 19:04:44,268 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:44,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:44,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1859343785, now seen corresponding path program 14 times [2022-04-18 19:04:44,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:44,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289127039] [2022-04-18 19:04:44,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:44,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:44,897 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 19:04:44,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:44,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289127039] [2022-04-18 19:04:44,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289127039] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:44,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:44,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:44,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793908621] [2022-04-18 19:04:44,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:44,899 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:44,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:44,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:44,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:44,900 INFO L87 Difference]: Start difference. First operand 24183 states and 53255 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 19:04:48,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:48,075 INFO L93 Difference]: Finished difference Result 33714 states and 72862 transitions. [2022-04-18 19:04:48,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-04-18 19:04:48,075 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 19:04:48,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:48,140 INFO L225 Difference]: With dead ends: 33714 [2022-04-18 19:04:48,140 INFO L226 Difference]: Without dead ends: 33710 [2022-04-18 19:04:48,141 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=378, Invalid=954, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:04:48,141 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 683 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 3684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:48,142 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [683 Valid, 938 Invalid, 3684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 3051 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:04:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33710 states. [2022-04-18 19:04:48,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33710 to 24483. [2022-04-18 19:04:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24483 states, 24440 states have (on average 2.205482815057283) internal successors, (53902), 24482 states have internal predecessors, (53902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:48,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24483 states to 24483 states and 53902 transitions. [2022-04-18 19:04:48,567 INFO L78 Accepts]: Start accepts. Automaton has 24483 states and 53902 transitions. Word has length 32 [2022-04-18 19:04:48,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:48,568 INFO L478 AbstractCegarLoop]: Abstraction has 24483 states and 53902 transitions. [2022-04-18 19:04:48,568 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 19:04:48,568 INFO L276 IsEmpty]: Start isEmpty. Operand 24483 states and 53902 transitions. [2022-04-18 19:04:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:48,574 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:48,574 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, 1] [2022-04-18 19:04:48,575 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-18 19:04:48,575 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:48,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:48,575 INFO L85 PathProgramCache]: Analyzing trace with hash 237185799, now seen corresponding path program 24 times [2022-04-18 19:04:48,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:48,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139677749] [2022-04-18 19:04:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:48,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:49,152 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 19:04:49,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:49,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139677749] [2022-04-18 19:04:49,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139677749] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:49,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:49,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:49,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730521570] [2022-04-18 19:04:49,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:49,153 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:49,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:49,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:49,154 INFO L87 Difference]: Start difference. First operand 24483 states and 53902 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 19:04:52,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:52,792 INFO L93 Difference]: Finished difference Result 30616 states and 66522 transitions. [2022-04-18 19:04:52,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:04:52,793 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 19:04:52,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:52,852 INFO L225 Difference]: With dead ends: 30616 [2022-04-18 19:04:52,852 INFO L226 Difference]: Without dead ends: 30616 [2022-04-18 19:04:52,853 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:04:52,853 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 720 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:52,853 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 1320 Invalid, 5089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 5026 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:04:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30616 states. [2022-04-18 19:04:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30616 to 24474. [2022-04-18 19:04:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24474 states, 24431 states have (on average 2.2055585117269043) internal successors, (53884), 24473 states have internal predecessors, (53884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:53,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24474 states to 24474 states and 53884 transitions. [2022-04-18 19:04:53,263 INFO L78 Accepts]: Start accepts. Automaton has 24474 states and 53884 transitions. Word has length 32 [2022-04-18 19:04:53,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:53,263 INFO L478 AbstractCegarLoop]: Abstraction has 24474 states and 53884 transitions. [2022-04-18 19:04:53,264 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 19:04:53,264 INFO L276 IsEmpty]: Start isEmpty. Operand 24474 states and 53884 transitions. [2022-04-18 19:04:53,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:53,270 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:53,270 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, 1] [2022-04-18 19:04:53,270 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-18 19:04:53,270 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:53,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:53,271 INFO L85 PathProgramCache]: Analyzing trace with hash 236962599, now seen corresponding path program 25 times [2022-04-18 19:04:53,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:53,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744290435] [2022-04-18 19:04:53,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:53,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:54,012 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 19:04:54,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:54,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744290435] [2022-04-18 19:04:54,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744290435] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:54,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:54,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:54,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611537446] [2022-04-18 19:04:54,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:54,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:54,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:54,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:54,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:54,014 INFO L87 Difference]: Start difference. First operand 24474 states and 53884 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 19:04:57,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:04:57,136 INFO L93 Difference]: Finished difference Result 27618 states and 60407 transitions. [2022-04-18 19:04:57,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:04:57,136 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 19:04:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:04:57,193 INFO L225 Difference]: With dead ends: 27618 [2022-04-18 19:04:57,194 INFO L226 Difference]: Without dead ends: 27618 [2022-04-18 19:04:57,194 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:04:57,194 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 610 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 5045 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 5070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 5045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:04:57,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 1311 Invalid, 5070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 5045 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:04:57,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27618 states. [2022-04-18 19:04:57,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27618 to 24484. [2022-04-18 19:04:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24484 states, 24441 states have (on average 2.205474407757457) internal successors, (53904), 24483 states have internal predecessors, (53904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:04:57,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24484 states to 24484 states and 53904 transitions. [2022-04-18 19:04:57,748 INFO L78 Accepts]: Start accepts. Automaton has 24484 states and 53904 transitions. Word has length 32 [2022-04-18 19:04:57,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:04:57,749 INFO L478 AbstractCegarLoop]: Abstraction has 24484 states and 53904 transitions. [2022-04-18 19:04:57,749 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 19:04:57,749 INFO L276 IsEmpty]: Start isEmpty. Operand 24484 states and 53904 transitions. [2022-04-18 19:04:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:04:57,756 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:04:57,756 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 19:04:57,756 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-18 19:04:57,756 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:04:57,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:04:57,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1417192001, now seen corresponding path program 15 times [2022-04-18 19:04:57,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:04:57,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903048361] [2022-04-18 19:04:57,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:04:57,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:04:57,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:04:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:04:58,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:04:58,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903048361] [2022-04-18 19:04:58,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903048361] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:04:58,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:04:58,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:04:58,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391200111] [2022-04-18 19:04:58,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:04:58,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:04:58,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:04:58,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:04:58,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:04:58,312 INFO L87 Difference]: Start difference. First operand 24484 states and 53904 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 19:05:02,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:02,200 INFO L93 Difference]: Finished difference Result 35045 states and 75632 transitions. [2022-04-18 19:05:02,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-04-18 19:05:02,200 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 19:05:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:02,270 INFO L225 Difference]: With dead ends: 35045 [2022-04-18 19:05:02,271 INFO L226 Difference]: Without dead ends: 35038 [2022-04-18 19:05:02,271 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=387, Invalid=1095, Unknown=0, NotChecked=0, Total=1482 [2022-04-18 19:05:02,271 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 788 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 4586 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 5259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 4586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:02,272 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [788 Valid, 1171 Invalid, 5259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 4586 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:05:02,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35038 states. [2022-04-18 19:05:02,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35038 to 24585. [2022-04-18 19:05:02,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24585 states, 24542 states have (on average 2.20597343329802) internal successors, (54139), 24584 states have internal predecessors, (54139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:02,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24585 states to 24585 states and 54139 transitions. [2022-04-18 19:05:02,746 INFO L78 Accepts]: Start accepts. Automaton has 24585 states and 54139 transitions. Word has length 32 [2022-04-18 19:05:02,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:02,747 INFO L478 AbstractCegarLoop]: Abstraction has 24585 states and 54139 transitions. [2022-04-18 19:05:02,747 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 19:05:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 24585 states and 54139 transitions. [2022-04-18 19:05:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:02,752 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:02,752 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 19:05:02,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-18 19:05:02,752 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:02,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:02,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1833912577, now seen corresponding path program 26 times [2022-04-18 19:05:02,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:02,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228612358] [2022-04-18 19:05:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:02,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:03,494 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 19:05:03,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:03,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228612358] [2022-04-18 19:05:03,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228612358] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:03,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:03,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:03,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524242562] [2022-04-18 19:05:03,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:03,495 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:03,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:03,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:03,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:03,495 INFO L87 Difference]: Start difference. First operand 24585 states and 54139 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 19:05:06,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:06,615 INFO L93 Difference]: Finished difference Result 31302 states and 67980 transitions. [2022-04-18 19:05:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:05:06,615 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 19:05:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:06,677 INFO L225 Difference]: With dead ends: 31302 [2022-04-18 19:05:06,678 INFO L226 Difference]: Without dead ends: 31302 [2022-04-18 19:05:06,678 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:05:06,678 INFO L913 BasicCegarLoop]: 284 mSDtfsCounter, 846 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 4206 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 4282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 4206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:06,679 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [846 Valid, 1402 Invalid, 4282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 4206 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:05:06,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31302 states. [2022-04-18 19:05:07,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31302 to 24608. [2022-04-18 19:05:07,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24608 states, 24565 states have (on average 2.2057805821290453) internal successors, (54185), 24607 states have internal predecessors, (54185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24608 states to 24608 states and 54185 transitions. [2022-04-18 19:05:07,113 INFO L78 Accepts]: Start accepts. Automaton has 24608 states and 54185 transitions. Word has length 32 [2022-04-18 19:05:07,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:07,113 INFO L478 AbstractCegarLoop]: Abstraction has 24608 states and 54185 transitions. [2022-04-18 19:05:07,113 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 19:05:07,113 INFO L276 IsEmpty]: Start isEmpty. Operand 24608 states and 54185 transitions. [2022-04-18 19:05:07,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:07,118 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:07,118 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 19:05:07,119 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-18 19:05:07,119 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:07,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:07,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1833689377, now seen corresponding path program 27 times [2022-04-18 19:05:07,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:07,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711794665] [2022-04-18 19:05:07,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:07,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:07,930 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 19:05:07,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:07,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711794665] [2022-04-18 19:05:07,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711794665] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:07,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:07,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:07,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573708600] [2022-04-18 19:05:07,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:07,931 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:07,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:07,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:07,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:07,931 INFO L87 Difference]: Start difference. First operand 24608 states and 54185 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 19:05:11,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:11,226 INFO L93 Difference]: Finished difference Result 31280 states and 67934 transitions. [2022-04-18 19:05:11,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:05:11,227 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 19:05:11,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:11,289 INFO L225 Difference]: With dead ends: 31280 [2022-04-18 19:05:11,289 INFO L226 Difference]: Without dead ends: 31280 [2022-04-18 19:05:11,290 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:05:11,292 INFO L913 BasicCegarLoop]: 285 mSDtfsCounter, 705 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 4288 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 4342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 4288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:11,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 1496 Invalid, 4342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 4288 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:05:11,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31280 states. [2022-04-18 19:05:11,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31280 to 24524. [2022-04-18 19:05:11,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24524 states, 24481 states have (on average 2.205465463012132) internal successors, (53992), 24523 states have internal predecessors, (53992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24524 states to 24524 states and 53992 transitions. [2022-04-18 19:05:11,706 INFO L78 Accepts]: Start accepts. Automaton has 24524 states and 53992 transitions. Word has length 32 [2022-04-18 19:05:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:11,706 INFO L478 AbstractCegarLoop]: Abstraction has 24524 states and 53992 transitions. [2022-04-18 19:05:11,707 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 19:05:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 24524 states and 53992 transitions. [2022-04-18 19:05:11,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:11,712 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:11,712 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 19:05:11,712 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-18 19:05:11,712 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:11,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:11,712 INFO L85 PathProgramCache]: Analyzing trace with hash -727700801, now seen corresponding path program 16 times [2022-04-18 19:05:11,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:11,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431519594] [2022-04-18 19:05:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:11,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:12,172 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 19:05:12,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:12,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431519594] [2022-04-18 19:05:12,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431519594] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:12,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:12,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:12,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851969107] [2022-04-18 19:05:12,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:12,173 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:12,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:12,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:12,174 INFO L87 Difference]: Start difference. First operand 24524 states and 53992 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 19:05:15,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:15,545 INFO L93 Difference]: Finished difference Result 34776 states and 75072 transitions. [2022-04-18 19:05:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-04-18 19:05:15,545 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 19:05:15,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:15,615 INFO L225 Difference]: With dead ends: 34776 [2022-04-18 19:05:15,615 INFO L226 Difference]: Without dead ends: 34772 [2022-04-18 19:05:15,615 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=400, Invalid=1160, Unknown=0, NotChecked=0, Total=1560 [2022-04-18 19:05:15,616 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 948 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 3886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:15,616 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 1207 Invalid, 3886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 3148 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:05:15,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34772 states. [2022-04-18 19:05:16,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34772 to 24508. [2022-04-18 19:05:16,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24508 states, 24465 states have (on average 2.2055998365011242) internal successors, (53960), 24507 states have internal predecessors, (53960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24508 states to 24508 states and 53960 transitions. [2022-04-18 19:05:16,121 INFO L78 Accepts]: Start accepts. Automaton has 24508 states and 53960 transitions. Word has length 32 [2022-04-18 19:05:16,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:16,121 INFO L478 AbstractCegarLoop]: Abstraction has 24508 states and 53960 transitions. [2022-04-18 19:05:16,121 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 19:05:16,121 INFO L276 IsEmpty]: Start isEmpty. Operand 24508 states and 53960 transitions. [2022-04-18 19:05:16,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:16,126 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:16,126 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 19:05:16,126 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-18 19:05:16,126 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:16,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:16,127 INFO L85 PathProgramCache]: Analyzing trace with hash 310430513, now seen corresponding path program 17 times [2022-04-18 19:05:16,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:16,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829429557] [2022-04-18 19:05:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:16,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:16,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:16,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829429557] [2022-04-18 19:05:16,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829429557] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:16,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:16,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076903698] [2022-04-18 19:05:16,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:16,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:16,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:16,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:16,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:16,525 INFO L87 Difference]: Start difference. First operand 24508 states and 53960 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 19:05:20,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:20,332 INFO L93 Difference]: Finished difference Result 36562 states and 78647 transitions. [2022-04-18 19:05:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-04-18 19:05:20,333 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 19:05:20,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:20,405 INFO L225 Difference]: With dead ends: 36562 [2022-04-18 19:05:20,405 INFO L226 Difference]: Without dead ends: 36555 [2022-04-18 19:05:20,406 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=354, Invalid=1206, Unknown=0, NotChecked=0, Total=1560 [2022-04-18 19:05:20,406 INFO L913 BasicCegarLoop]: 297 mSDtfsCounter, 1026 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 4561 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 5238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 4561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:20,406 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 1605 Invalid, 5238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 4561 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:05:20,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36555 states. [2022-04-18 19:05:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36555 to 25521. [2022-04-18 19:05:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25521 states, 25478 states have (on average 2.205903132113981) internal successors, (56202), 25520 states have internal predecessors, (56202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:20,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25521 states to 25521 states and 56202 transitions. [2022-04-18 19:05:20,939 INFO L78 Accepts]: Start accepts. Automaton has 25521 states and 56202 transitions. Word has length 32 [2022-04-18 19:05:20,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:20,940 INFO L478 AbstractCegarLoop]: Abstraction has 25521 states and 56202 transitions. [2022-04-18 19:05:20,940 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 19:05:20,940 INFO L276 IsEmpty]: Start isEmpty. Operand 25521 states and 56202 transitions. [2022-04-18 19:05:20,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:20,945 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:20,945 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 19:05:20,945 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-18 19:05:20,945 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:20,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:20,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1483027053, now seen corresponding path program 28 times [2022-04-18 19:05:20,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:20,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752091920] [2022-04-18 19:05:20,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:20,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:21,628 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 19:05:21,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:21,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752091920] [2022-04-18 19:05:21,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752091920] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:21,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:21,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:21,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017470090] [2022-04-18 19:05:21,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:21,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:21,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:21,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:21,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:21,630 INFO L87 Difference]: Start difference. First operand 25521 states and 56202 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 19:05:25,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:25,834 INFO L93 Difference]: Finished difference Result 32040 states and 69405 transitions. [2022-04-18 19:05:25,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:05:25,835 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 19:05:25,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:25,894 INFO L225 Difference]: With dead ends: 32040 [2022-04-18 19:05:25,894 INFO L226 Difference]: Without dead ends: 32040 [2022-04-18 19:05:25,895 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:05:25,895 INFO L913 BasicCegarLoop]: 316 mSDtfsCounter, 978 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 6050 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 6116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 6050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:25,895 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 1760 Invalid, 6116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 6050 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-18 19:05:25,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32040 states. [2022-04-18 19:05:26,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32040 to 25738. [2022-04-18 19:05:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25738 states, 25695 states have (on average 2.205448530842576) internal successors, (56669), 25737 states have internal predecessors, (56669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:26,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25738 states to 25738 states and 56669 transitions. [2022-04-18 19:05:26,355 INFO L78 Accepts]: Start accepts. Automaton has 25738 states and 56669 transitions. Word has length 32 [2022-04-18 19:05:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:26,355 INFO L478 AbstractCegarLoop]: Abstraction has 25738 states and 56669 transitions. [2022-04-18 19:05:26,356 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 19:05:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 25738 states and 56669 transitions. [2022-04-18 19:05:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:26,361 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:26,361 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, 1] [2022-04-18 19:05:26,361 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-18 19:05:26,361 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:26,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:26,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1483250253, now seen corresponding path program 29 times [2022-04-18 19:05:26,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:26,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111880557] [2022-04-18 19:05:26,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:26,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:27,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:27,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111880557] [2022-04-18 19:05:27,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111880557] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:27,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:27,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:27,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29772035] [2022-04-18 19:05:27,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:27,195 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:27,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:27,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:27,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:27,196 INFO L87 Difference]: Start difference. First operand 25738 states and 56669 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 19:05:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:31,004 INFO L93 Difference]: Finished difference Result 32020 states and 69365 transitions. [2022-04-18 19:05:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:05:31,005 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 19:05:31,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:31,071 INFO L225 Difference]: With dead ends: 32020 [2022-04-18 19:05:31,071 INFO L226 Difference]: Without dead ends: 32020 [2022-04-18 19:05:31,072 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=227, Invalid=765, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:05:31,072 INFO L913 BasicCegarLoop]: 316 mSDtfsCounter, 910 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 5032 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 5106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:31,072 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 1855 Invalid, 5106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5032 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-18 19:05:31,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32020 states. [2022-04-18 19:05:31,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32020 to 25310. [2022-04-18 19:05:31,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25310 states, 25267 states have (on average 2.2056833023311038) internal successors, (55731), 25309 states have internal predecessors, (55731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25310 states to 25310 states and 55731 transitions. [2022-04-18 19:05:31,533 INFO L78 Accepts]: Start accepts. Automaton has 25310 states and 55731 transitions. Word has length 32 [2022-04-18 19:05:31,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:31,534 INFO L478 AbstractCegarLoop]: Abstraction has 25310 states and 55731 transitions. [2022-04-18 19:05:31,534 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 19:05:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 25310 states and 55731 transitions. [2022-04-18 19:05:31,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:31,539 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:31,539 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 19:05:31,539 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-18 19:05:31,540 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:31,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:31,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1034071933, now seen corresponding path program 30 times [2022-04-18 19:05:31,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:31,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611356959] [2022-04-18 19:05:31,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:31,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:32,162 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 19:05:32,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:32,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611356959] [2022-04-18 19:05:32,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611356959] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:32,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:32,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:32,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600990793] [2022-04-18 19:05:32,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:32,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:32,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:32,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:32,164 INFO L87 Difference]: Start difference. First operand 25310 states and 55731 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 19:05:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:34,742 INFO L93 Difference]: Finished difference Result 31571 states and 68517 transitions. [2022-04-18 19:05:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:05:34,743 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 19:05:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:34,912 INFO L225 Difference]: With dead ends: 31571 [2022-04-18 19:05:34,912 INFO L226 Difference]: Without dead ends: 31571 [2022-04-18 19:05:34,912 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:05:34,913 INFO L913 BasicCegarLoop]: 289 mSDtfsCounter, 657 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 3308 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 3308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:34,913 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 1658 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 3308 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:05:34,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31571 states. [2022-04-18 19:05:35,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31571 to 25313. [2022-04-18 19:05:35,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25313 states, 25270 states have (on average 2.205658884052236) internal successors, (55737), 25312 states have internal predecessors, (55737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25313 states to 25313 states and 55737 transitions. [2022-04-18 19:05:35,360 INFO L78 Accepts]: Start accepts. Automaton has 25313 states and 55737 transitions. Word has length 32 [2022-04-18 19:05:35,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:35,361 INFO L478 AbstractCegarLoop]: Abstraction has 25313 states and 55737 transitions. [2022-04-18 19:05:35,361 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 19:05:35,361 INFO L276 IsEmpty]: Start isEmpty. Operand 25313 states and 55737 transitions. [2022-04-18 19:05:35,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:35,366 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:35,366 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 19:05:35,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-18 19:05:35,366 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:35,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:35,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1033848733, now seen corresponding path program 31 times [2022-04-18 19:05:35,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:35,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180726449] [2022-04-18 19:05:35,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:35,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:36,088 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 19:05:36,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:36,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180726449] [2022-04-18 19:05:36,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180726449] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:36,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:36,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:36,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480511913] [2022-04-18 19:05:36,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:36,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:36,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:36,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:36,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:36,090 INFO L87 Difference]: Start difference. First operand 25313 states and 55737 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 19:05:38,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:38,392 INFO L93 Difference]: Finished difference Result 31547 states and 68469 transitions. [2022-04-18 19:05:38,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:05:38,392 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 19:05:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:38,451 INFO L225 Difference]: With dead ends: 31547 [2022-04-18 19:05:38,451 INFO L226 Difference]: Without dead ends: 31547 [2022-04-18 19:05:38,452 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:05:38,452 INFO L913 BasicCegarLoop]: 289 mSDtfsCounter, 752 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 2658 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:38,452 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [752 Valid, 1525 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2658 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-18 19:05:38,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31547 states. [2022-04-18 19:05:38,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31547 to 25307. [2022-04-18 19:05:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25307 states, 25264 states have (on average 2.20570772640912) internal successors, (55725), 25306 states have internal predecessors, (55725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25307 states to 25307 states and 55725 transitions. [2022-04-18 19:05:39,115 INFO L78 Accepts]: Start accepts. Automaton has 25307 states and 55725 transitions. Word has length 32 [2022-04-18 19:05:39,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:39,115 INFO L478 AbstractCegarLoop]: Abstraction has 25307 states and 55725 transitions. [2022-04-18 19:05:39,115 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 19:05:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand 25307 states and 55725 transitions. [2022-04-18 19:05:39,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:39,120 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:39,120 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 19:05:39,120 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-18 19:05:39,120 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:39,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1229795281, now seen corresponding path program 32 times [2022-04-18 19:05:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:39,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275621120] [2022-04-18 19:05:39,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:39,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:39,736 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 19:05:39,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:39,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275621120] [2022-04-18 19:05:39,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275621120] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:39,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:39,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:39,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933607928] [2022-04-18 19:05:39,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:39,736 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:39,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:39,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:39,738 INFO L87 Difference]: Start difference. First operand 25307 states and 55725 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 19:05:43,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:43,811 INFO L93 Difference]: Finished difference Result 31503 states and 68381 transitions. [2022-04-18 19:05:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:05:43,811 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 19:05:43,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:43,877 INFO L225 Difference]: With dead ends: 31503 [2022-04-18 19:05:43,877 INFO L226 Difference]: Without dead ends: 31503 [2022-04-18 19:05:43,877 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:05:43,878 INFO L913 BasicCegarLoop]: 292 mSDtfsCounter, 777 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 5702 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 5767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 5702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:43,878 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [777 Valid, 1698 Invalid, 5767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 5702 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-18 19:05:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31503 states. [2022-04-18 19:05:44,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31503 to 25305. [2022-04-18 19:05:44,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25305 states, 25262 states have (on average 2.205724012350566) internal successors, (55721), 25304 states have internal predecessors, (55721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25305 states to 25305 states and 55721 transitions. [2022-04-18 19:05:44,370 INFO L78 Accepts]: Start accepts. Automaton has 25305 states and 55721 transitions. Word has length 32 [2022-04-18 19:05:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:44,371 INFO L478 AbstractCegarLoop]: Abstraction has 25305 states and 55721 transitions. [2022-04-18 19:05:44,371 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 19:05:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 25305 states and 55721 transitions. [2022-04-18 19:05:44,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:44,376 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:44,376 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 19:05:44,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-18 19:05:44,376 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:44,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:44,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1229572081, now seen corresponding path program 33 times [2022-04-18 19:05:44,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:44,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665600204] [2022-04-18 19:05:44,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:44,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:45,020 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 19:05:45,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:45,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665600204] [2022-04-18 19:05:45,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665600204] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:45,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:45,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:45,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170459500] [2022-04-18 19:05:45,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:45,021 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:45,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:45,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:45,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:45,021 INFO L87 Difference]: Start difference. First operand 25305 states and 55721 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 19:05:47,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:47,891 INFO L93 Difference]: Finished difference Result 31515 states and 68405 transitions. [2022-04-18 19:05:47,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:05:47,892 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 19:05:47,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:47,957 INFO L225 Difference]: With dead ends: 31515 [2022-04-18 19:05:47,957 INFO L226 Difference]: Without dead ends: 31515 [2022-04-18 19:05:47,958 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:05:47,958 INFO L913 BasicCegarLoop]: 290 mSDtfsCounter, 691 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 3852 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 3919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:47,958 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 1668 Invalid, 3919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3852 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:05:47,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31515 states. [2022-04-18 19:05:48,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31515 to 25303. [2022-04-18 19:05:48,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25303 states, 25260 states have (on average 2.2057403008709424) internal successors, (55717), 25302 states have internal predecessors, (55717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25303 states to 25303 states and 55717 transitions. [2022-04-18 19:05:48,447 INFO L78 Accepts]: Start accepts. Automaton has 25303 states and 55717 transitions. Word has length 32 [2022-04-18 19:05:48,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:48,448 INFO L478 AbstractCegarLoop]: Abstraction has 25303 states and 55717 transitions. [2022-04-18 19:05:48,448 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 19:05:48,448 INFO L276 IsEmpty]: Start isEmpty. Operand 25303 states and 55717 transitions. [2022-04-18 19:05:48,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:48,453 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:48,453 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 19:05:48,453 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-18 19:05:48,453 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:48,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:48,454 INFO L85 PathProgramCache]: Analyzing trace with hash 906041821, now seen corresponding path program 34 times [2022-04-18 19:05:48,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:48,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338470742] [2022-04-18 19:05:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:48,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:49,220 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 19:05:49,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:49,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338470742] [2022-04-18 19:05:49,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338470742] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:49,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:49,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:49,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241079203] [2022-04-18 19:05:49,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:49,221 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:49,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:49,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:49,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:49,222 INFO L87 Difference]: Start difference. First operand 25303 states and 55717 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 19:05:52,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:52,849 INFO L93 Difference]: Finished difference Result 31471 states and 68317 transitions. [2022-04-18 19:05:52,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:05:52,850 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 19:05:52,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:52,913 INFO L225 Difference]: With dead ends: 31471 [2022-04-18 19:05:52,913 INFO L226 Difference]: Without dead ends: 31471 [2022-04-18 19:05:52,913 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:05:52,913 INFO L913 BasicCegarLoop]: 293 mSDtfsCounter, 871 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 4554 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 4633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:52,913 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [871 Valid, 1561 Invalid, 4633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4554 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:05:52,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31471 states. [2022-04-18 19:05:53,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31471 to 25085. [2022-04-18 19:05:53,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25085 states, 25042 states have (on average 2.2061736283044486) internal successors, (55247), 25084 states have internal predecessors, (55247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25085 states to 25085 states and 55247 transitions. [2022-04-18 19:05:53,353 INFO L78 Accepts]: Start accepts. Automaton has 25085 states and 55247 transitions. Word has length 32 [2022-04-18 19:05:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:53,354 INFO L478 AbstractCegarLoop]: Abstraction has 25085 states and 55247 transitions. [2022-04-18 19:05:53,354 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 19:05:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand 25085 states and 55247 transitions. [2022-04-18 19:05:53,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:53,359 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:53,359 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 19:05:53,359 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-18 19:05:53,360 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:53,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1974722481, now seen corresponding path program 18 times [2022-04-18 19:05:53,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:53,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457839506] [2022-04-18 19:05:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:53,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:54,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:05:54,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:54,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457839506] [2022-04-18 19:05:54,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457839506] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:54,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:54,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:54,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082222828] [2022-04-18 19:05:54,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:54,049 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:54,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:54,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:54,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:54,050 INFO L87 Difference]: Start difference. First operand 25085 states and 55247 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 19:05:57,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:05:57,963 INFO L93 Difference]: Finished difference Result 34444 states and 74458 transitions. [2022-04-18 19:05:57,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-18 19:05:57,964 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 19:05:57,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:05:58,159 INFO L225 Difference]: With dead ends: 34444 [2022-04-18 19:05:58,159 INFO L226 Difference]: Without dead ends: 34437 [2022-04-18 19:05:58,159 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=481, Invalid=1325, Unknown=0, NotChecked=0, Total=1806 [2022-04-18 19:05:58,160 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 990 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 3404 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 4339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 3404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:05:58,160 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 1032 Invalid, 4339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 3404 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:05:58,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34437 states. [2022-04-18 19:05:58,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34437 to 25243. [2022-04-18 19:05:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25243 states, 25200 states have (on average 2.206309523809524) internal successors, (55599), 25242 states have internal predecessors, (55599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:05:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25243 states to 25243 states and 55599 transitions. [2022-04-18 19:05:58,626 INFO L78 Accepts]: Start accepts. Automaton has 25243 states and 55599 transitions. Word has length 32 [2022-04-18 19:05:58,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:05:58,626 INFO L478 AbstractCegarLoop]: Abstraction has 25243 states and 55599 transitions. [2022-04-18 19:05:58,626 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 19:05:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 25243 states and 55599 transitions. [2022-04-18 19:05:58,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:05:58,632 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:05:58,632 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, 1] [2022-04-18 19:05:58,632 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-18 19:05:58,632 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:05:58,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:05:58,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1903524239, now seen corresponding path program 35 times [2022-04-18 19:05:58,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:05:58,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866955767] [2022-04-18 19:05:58,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:05:58,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:05:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:05:59,280 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 19:05:59,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:05:59,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866955767] [2022-04-18 19:05:59,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866955767] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:05:59,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:05:59,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:05:59,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022190145] [2022-04-18 19:05:59,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:05:59,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:05:59,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:05:59,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:05:59,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:05:59,281 INFO L87 Difference]: Start difference. First operand 25243 states and 55599 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 19:06:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:02,809 INFO L93 Difference]: Finished difference Result 31334 states and 68096 transitions. [2022-04-18 19:06:02,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:06:02,810 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 19:06:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:02,872 INFO L225 Difference]: With dead ends: 31334 [2022-04-18 19:06:02,873 INFO L226 Difference]: Without dead ends: 31334 [2022-04-18 19:06:02,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:06:02,873 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 843 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 4661 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 4737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 4661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:02,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [843 Valid, 1371 Invalid, 4737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 4661 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:06:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31334 states. [2022-04-18 19:06:03,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31334 to 25266. [2022-04-18 19:06:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25266 states, 25223 states have (on average 2.206121397137533) internal successors, (55645), 25265 states have internal predecessors, (55645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:03,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25266 states to 25266 states and 55645 transitions. [2022-04-18 19:06:03,440 INFO L78 Accepts]: Start accepts. Automaton has 25266 states and 55645 transitions. Word has length 32 [2022-04-18 19:06:03,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:03,440 INFO L478 AbstractCegarLoop]: Abstraction has 25266 states and 55645 transitions. [2022-04-18 19:06:03,441 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 19:06:03,441 INFO L276 IsEmpty]: Start isEmpty. Operand 25266 states and 55645 transitions. [2022-04-18 19:06:03,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:03,446 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:03,446 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 19:06:03,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-18 19:06:03,446 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1903747439, now seen corresponding path program 36 times [2022-04-18 19:06:03,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:03,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546775819] [2022-04-18 19:06:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:03,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:04,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:04,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546775819] [2022-04-18 19:06:04,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546775819] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:04,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:04,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:04,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189832873] [2022-04-18 19:06:04,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:04,152 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:04,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:04,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:04,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:04,152 INFO L87 Difference]: Start difference. First operand 25266 states and 55645 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 19:06:07,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:07,262 INFO L93 Difference]: Finished difference Result 28275 states and 61857 transitions. [2022-04-18 19:06:07,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:06:07,262 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 19:06:07,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:07,319 INFO L225 Difference]: With dead ends: 28275 [2022-04-18 19:06:07,319 INFO L226 Difference]: Without dead ends: 28275 [2022-04-18 19:06:07,319 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:06:07,320 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 609 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 4993 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 5016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 4993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:07,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 1434 Invalid, 5016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 4993 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:06:07,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28275 states. [2022-04-18 19:06:07,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28275 to 25265. [2022-04-18 19:06:07,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25265 states, 25222 states have (on average 2.2060899214971057) internal successors, (55642), 25264 states have internal predecessors, (55642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25265 states to 25265 states and 55642 transitions. [2022-04-18 19:06:07,733 INFO L78 Accepts]: Start accepts. Automaton has 25265 states and 55642 transitions. Word has length 32 [2022-04-18 19:06:07,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:07,734 INFO L478 AbstractCegarLoop]: Abstraction has 25265 states and 55642 transitions. [2022-04-18 19:06:07,734 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 19:06:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 25265 states and 55642 transitions. [2022-04-18 19:06:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:07,739 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:07,739 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 19:06:07,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-18 19:06:07,739 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:07,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:07,740 INFO L85 PathProgramCache]: Analyzing trace with hash -170170321, now seen corresponding path program 19 times [2022-04-18 19:06:07,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:07,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286215983] [2022-04-18 19:06:07,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:07,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:08,278 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 19:06:08,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:08,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286215983] [2022-04-18 19:06:08,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286215983] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:08,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:08,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:08,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409023412] [2022-04-18 19:06:08,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:08,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:08,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:08,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:08,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:08,280 INFO L87 Difference]: Start difference. First operand 25265 states and 55642 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 19:06:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:12,432 INFO L93 Difference]: Finished difference Result 34776 states and 75149 transitions. [2022-04-18 19:06:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-04-18 19:06:12,433 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 19:06:12,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:12,503 INFO L225 Difference]: With dead ends: 34776 [2022-04-18 19:06:12,504 INFO L226 Difference]: Without dead ends: 34772 [2022-04-18 19:06:12,504 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=494, Invalid=1398, Unknown=0, NotChecked=0, Total=1892 [2022-04-18 19:06:12,504 INFO L913 BasicCegarLoop]: 214 mSDtfsCounter, 990 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 3865 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 4710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 3865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:12,505 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 1166 Invalid, 4710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 3865 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:06:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34772 states. [2022-04-18 19:06:12,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34772 to 25249. [2022-04-18 19:06:12,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25249 states, 25206 states have (on average 2.2062207410933903) internal successors, (55610), 25248 states have internal predecessors, (55610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:12,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25249 states to 25249 states and 55610 transitions. [2022-04-18 19:06:12,965 INFO L78 Accepts]: Start accepts. Automaton has 25249 states and 55610 transitions. Word has length 32 [2022-04-18 19:06:12,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:12,965 INFO L478 AbstractCegarLoop]: Abstraction has 25249 states and 55610 transitions. [2022-04-18 19:06:12,965 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 19:06:12,965 INFO L276 IsEmpty]: Start isEmpty. Operand 25249 states and 55610 transitions. [2022-04-18 19:06:12,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:12,970 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:12,971 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, 1] [2022-04-18 19:06:12,971 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-04-18 19:06:12,971 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:12,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:12,971 INFO L85 PathProgramCache]: Analyzing trace with hash 867960993, now seen corresponding path program 20 times [2022-04-18 19:06:12,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:12,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243230531] [2022-04-18 19:06:12,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:12,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:13,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:13,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243230531] [2022-04-18 19:06:13,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243230531] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:13,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:13,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211104412] [2022-04-18 19:06:13,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:13,312 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:13,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:13,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:13,313 INFO L87 Difference]: Start difference. First operand 25249 states and 55610 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 19:06:17,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:17,475 INFO L93 Difference]: Finished difference Result 37076 states and 79804 transitions. [2022-04-18 19:06:17,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-04-18 19:06:17,476 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 19:06:17,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:17,555 INFO L225 Difference]: With dead ends: 37076 [2022-04-18 19:06:17,555 INFO L226 Difference]: Without dead ends: 37069 [2022-04-18 19:06:17,556 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=438, Invalid=1454, Unknown=0, NotChecked=0, Total=1892 [2022-04-18 19:06:17,556 INFO L913 BasicCegarLoop]: 304 mSDtfsCounter, 1026 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 4737 mSolverCounterSat, 697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 5434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 4737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:17,556 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 1628 Invalid, 5434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 4737 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:06:17,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37069 states. [2022-04-18 19:06:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37069 to 25938. [2022-04-18 19:06:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25938 states, 25895 states have (on average 2.2065649739331916) internal successors, (57139), 25937 states have internal predecessors, (57139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:18,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25938 states to 25938 states and 57139 transitions. [2022-04-18 19:06:18,108 INFO L78 Accepts]: Start accepts. Automaton has 25938 states and 57139 transitions. Word has length 32 [2022-04-18 19:06:18,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:18,108 INFO L478 AbstractCegarLoop]: Abstraction has 25938 states and 57139 transitions. [2022-04-18 19:06:18,108 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 19:06:18,109 INFO L276 IsEmpty]: Start isEmpty. Operand 25938 states and 57139 transitions. [2022-04-18 19:06:18,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:18,114 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:18,114 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 19:06:18,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-18 19:06:18,115 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:18,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:18,115 INFO L85 PathProgramCache]: Analyzing trace with hash -925496573, now seen corresponding path program 37 times [2022-04-18 19:06:18,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:18,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39471895] [2022-04-18 19:06:18,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:18,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:18,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:18,655 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:18,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39471895] [2022-04-18 19:06:18,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39471895] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:18,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:18,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:18,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853875771] [2022-04-18 19:06:18,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:18,656 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:18,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:18,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:18,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:18,656 INFO L87 Difference]: Start difference. First operand 25938 states and 57139 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 19:06:22,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:22,835 INFO L93 Difference]: Finished difference Result 32554 states and 70562 transitions. [2022-04-18 19:06:22,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:06:22,836 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 19:06:22,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:22,897 INFO L225 Difference]: With dead ends: 32554 [2022-04-18 19:06:22,897 INFO L226 Difference]: Without dead ends: 32554 [2022-04-18 19:06:22,897 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:06:22,898 INFO L913 BasicCegarLoop]: 323 mSDtfsCounter, 917 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 5676 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 5748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 5676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:22,898 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 1888 Invalid, 5748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 5676 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-18 19:06:22,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32554 states. [2022-04-18 19:06:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32554 to 26155. [2022-04-18 19:06:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26155 states, 26112 states have (on average 2.206112132352941) internal successors, (57606), 26154 states have internal predecessors, (57606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:23,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26155 states to 26155 states and 57606 transitions. [2022-04-18 19:06:23,379 INFO L78 Accepts]: Start accepts. Automaton has 26155 states and 57606 transitions. Word has length 32 [2022-04-18 19:06:23,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:23,380 INFO L478 AbstractCegarLoop]: Abstraction has 26155 states and 57606 transitions. [2022-04-18 19:06:23,380 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 19:06:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 26155 states and 57606 transitions. [2022-04-18 19:06:23,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:23,385 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:23,385 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 19:06:23,386 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-04-18 19:06:23,386 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:23,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:23,386 INFO L85 PathProgramCache]: Analyzing trace with hash -925719773, now seen corresponding path program 38 times [2022-04-18 19:06:23,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:23,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223000034] [2022-04-18 19:06:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:23,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:24,015 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 19:06:24,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:24,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223000034] [2022-04-18 19:06:24,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223000034] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:24,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:24,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:24,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549614964] [2022-04-18 19:06:24,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:24,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:24,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:24,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:24,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:24,016 INFO L87 Difference]: Start difference. First operand 26155 states and 57606 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 19:06:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:27,419 INFO L93 Difference]: Finished difference Result 32534 states and 70522 transitions. [2022-04-18 19:06:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:06:27,420 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 19:06:27,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:27,489 INFO L225 Difference]: With dead ends: 32534 [2022-04-18 19:06:27,489 INFO L226 Difference]: Without dead ends: 32534 [2022-04-18 19:06:27,489 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=765, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:06:27,490 INFO L913 BasicCegarLoop]: 323 mSDtfsCounter, 907 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:27,490 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [907 Valid, 1871 Invalid, 4465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4385 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:06:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32534 states. [2022-04-18 19:06:27,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32534 to 25620. [2022-04-18 19:06:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25620 states, 25577 states have (on average 2.206200883606365) internal successors, (56428), 25619 states have internal predecessors, (56428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:28,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25620 states to 25620 states and 56428 transitions. [2022-04-18 19:06:28,011 INFO L78 Accepts]: Start accepts. Automaton has 25620 states and 56428 transitions. Word has length 32 [2022-04-18 19:06:28,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:28,012 INFO L478 AbstractCegarLoop]: Abstraction has 25620 states and 56428 transitions. [2022-04-18 19:06:28,012 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 19:06:28,012 INFO L276 IsEmpty]: Start isEmpty. Operand 25620 states and 56428 transitions. [2022-04-18 19:06:28,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:28,017 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:28,017 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 19:06:28,017 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-18 19:06:28,017 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:28,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:28,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1591602413, now seen corresponding path program 39 times [2022-04-18 19:06:28,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:28,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554259924] [2022-04-18 19:06:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:28,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:28,541 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 19:06:28,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:28,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554259924] [2022-04-18 19:06:28,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554259924] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:28,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:28,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:28,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302559925] [2022-04-18 19:06:28,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:28,541 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:28,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:28,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:28,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:28,542 INFO L87 Difference]: Start difference. First operand 25620 states and 56428 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 19:06:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:31,502 INFO L93 Difference]: Finished difference Result 32085 states and 69674 transitions. [2022-04-18 19:06:31,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:06:31,502 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 19:06:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:31,565 INFO L225 Difference]: With dead ends: 32085 [2022-04-18 19:06:31,565 INFO L226 Difference]: Without dead ends: 32085 [2022-04-18 19:06:31,565 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:06:31,566 INFO L913 BasicCegarLoop]: 297 mSDtfsCounter, 642 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 4176 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 4243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:31,566 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [642 Valid, 1697 Invalid, 4243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4176 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:06:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32085 states. [2022-04-18 19:06:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32085 to 25623. [2022-04-18 19:06:31,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25623 states, 25580 states have (on average 2.2061767005473025) internal successors, (56434), 25622 states have internal predecessors, (56434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25623 states to 25623 states and 56434 transitions. [2022-04-18 19:06:32,049 INFO L78 Accepts]: Start accepts. Automaton has 25623 states and 56434 transitions. Word has length 32 [2022-04-18 19:06:32,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:32,050 INFO L478 AbstractCegarLoop]: Abstraction has 25623 states and 56434 transitions. [2022-04-18 19:06:32,050 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 19:06:32,050 INFO L276 IsEmpty]: Start isEmpty. Operand 25623 states and 56434 transitions. [2022-04-18 19:06:32,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:32,055 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:32,055 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 19:06:32,056 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-04-18 19:06:32,056 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:32,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:32,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1591379213, now seen corresponding path program 40 times [2022-04-18 19:06:32,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:32,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608546560] [2022-04-18 19:06:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:32,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:32,927 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 19:06:32,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:32,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608546560] [2022-04-18 19:06:32,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608546560] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:32,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:32,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:32,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551659266] [2022-04-18 19:06:32,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:32,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:32,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:32,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:32,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:32,929 INFO L87 Difference]: Start difference. First operand 25623 states and 56434 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 19:06:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:35,539 INFO L93 Difference]: Finished difference Result 32061 states and 69626 transitions. [2022-04-18 19:06:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:06:35,540 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 19:06:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:35,601 INFO L225 Difference]: With dead ends: 32061 [2022-04-18 19:06:35,601 INFO L226 Difference]: Without dead ends: 32061 [2022-04-18 19:06:35,601 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:06:35,601 INFO L913 BasicCegarLoop]: 297 mSDtfsCounter, 640 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 3284 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 3284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:35,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [640 Valid, 1683 Invalid, 3358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 3284 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:06:35,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32061 states. [2022-04-18 19:06:36,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32061 to 25617. [2022-04-18 19:06:36,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25617 states, 25574 states have (on average 2.2062250723390946) internal successors, (56422), 25616 states have internal predecessors, (56422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:36,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25617 states to 25617 states and 56422 transitions. [2022-04-18 19:06:36,109 INFO L78 Accepts]: Start accepts. Automaton has 25617 states and 56422 transitions. Word has length 32 [2022-04-18 19:06:36,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:36,110 INFO L478 AbstractCegarLoop]: Abstraction has 25617 states and 56422 transitions. [2022-04-18 19:06:36,110 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 19:06:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand 25617 states and 56422 transitions. [2022-04-18 19:06:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:36,116 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:36,116 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 19:06:36,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-04-18 19:06:36,117 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:36,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:36,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1787325761, now seen corresponding path program 41 times [2022-04-18 19:06:36,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:36,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012259327] [2022-04-18 19:06:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:36,696 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 19:06:36,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:36,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012259327] [2022-04-18 19:06:36,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012259327] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:36,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:36,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:36,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747860568] [2022-04-18 19:06:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:36,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:36,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:36,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:36,698 INFO L87 Difference]: Start difference. First operand 25617 states and 56422 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 19:06:40,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:40,403 INFO L93 Difference]: Finished difference Result 32017 states and 69538 transitions. [2022-04-18 19:06:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:06:40,404 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 19:06:40,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:40,464 INFO L225 Difference]: With dead ends: 32017 [2022-04-18 19:06:40,464 INFO L226 Difference]: Without dead ends: 32017 [2022-04-18 19:06:40,464 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:06:40,465 INFO L913 BasicCegarLoop]: 300 mSDtfsCounter, 877 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 4823 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 4907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:40,465 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [877 Valid, 1588 Invalid, 4907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4823 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:06:40,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32017 states. [2022-04-18 19:06:40,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32017 to 25615. [2022-04-18 19:06:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25615 states, 25572 states have (on average 2.206241201313937) internal successors, (56418), 25614 states have internal predecessors, (56418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25615 states to 25615 states and 56418 transitions. [2022-04-18 19:06:40,943 INFO L78 Accepts]: Start accepts. Automaton has 25615 states and 56418 transitions. Word has length 32 [2022-04-18 19:06:40,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:40,943 INFO L478 AbstractCegarLoop]: Abstraction has 25615 states and 56418 transitions. [2022-04-18 19:06:40,943 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 19:06:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 25615 states and 56418 transitions. [2022-04-18 19:06:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:40,948 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:40,949 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, 1] [2022-04-18 19:06:40,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-04-18 19:06:40,949 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:40,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:40,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1787102561, now seen corresponding path program 42 times [2022-04-18 19:06:40,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:40,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271928749] [2022-04-18 19:06:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:41,616 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 19:06:41,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:41,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271928749] [2022-04-18 19:06:41,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271928749] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:41,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:41,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:41,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853854569] [2022-04-18 19:06:41,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:41,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:41,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:41,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:41,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:41,618 INFO L87 Difference]: Start difference. First operand 25615 states and 56418 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 19:06:44,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:44,571 INFO L93 Difference]: Finished difference Result 32029 states and 69562 transitions. [2022-04-18 19:06:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:06:44,571 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 19:06:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:44,634 INFO L225 Difference]: With dead ends: 32029 [2022-04-18 19:06:44,634 INFO L226 Difference]: Without dead ends: 32029 [2022-04-18 19:06:44,634 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:06:44,634 INFO L913 BasicCegarLoop]: 298 mSDtfsCounter, 782 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 4036 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 4111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:44,635 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [782 Valid, 1573 Invalid, 4111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4036 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:06:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32029 states. [2022-04-18 19:06:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32029 to 25613. [2022-04-18 19:06:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25613 states, 25570 states have (on average 2.206257332811889) internal successors, (56414), 25612 states have internal predecessors, (56414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25613 states to 25613 states and 56414 transitions. [2022-04-18 19:06:45,182 INFO L78 Accepts]: Start accepts. Automaton has 25613 states and 56414 transitions. Word has length 32 [2022-04-18 19:06:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:45,182 INFO L478 AbstractCegarLoop]: Abstraction has 25613 states and 56414 transitions. [2022-04-18 19:06:45,182 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 19:06:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 25613 states and 56414 transitions. [2022-04-18 19:06:45,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:45,190 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:45,190 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 19:06:45,190 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-04-18 19:06:45,190 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:45,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:45,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1463572301, now seen corresponding path program 43 times [2022-04-18 19:06:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:45,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599876650] [2022-04-18 19:06:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:45,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:45,753 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 19:06:45,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:45,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599876650] [2022-04-18 19:06:45,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599876650] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:45,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:45,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:45,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991911944] [2022-04-18 19:06:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:45,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:45,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:45,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:45,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:45,754 INFO L87 Difference]: Start difference. First operand 25613 states and 56414 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 19:06:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:49,775 INFO L93 Difference]: Finished difference Result 31985 states and 69474 transitions. [2022-04-18 19:06:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:06:49,775 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 19:06:49,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:49,842 INFO L225 Difference]: With dead ends: 31985 [2022-04-18 19:06:49,842 INFO L226 Difference]: Without dead ends: 31985 [2022-04-18 19:06:49,842 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:06:49,843 INFO L913 BasicCegarLoop]: 301 mSDtfsCounter, 860 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 5788 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 5859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 5788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:49,843 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [860 Valid, 1604 Invalid, 5859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 5788 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-18 19:06:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31985 states. [2022-04-18 19:06:50,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31985 to 25086. [2022-04-18 19:06:50,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25086 states, 25043 states have (on average 2.2061653955197063) internal successors, (55249), 25085 states have internal predecessors, (55249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:50,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25086 states to 25086 states and 55249 transitions. [2022-04-18 19:06:50,418 INFO L78 Accepts]: Start accepts. Automaton has 25086 states and 55249 transitions. Word has length 32 [2022-04-18 19:06:50,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:50,418 INFO L478 AbstractCegarLoop]: Abstraction has 25086 states and 55249 transitions. [2022-04-18 19:06:50,418 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 19:06:50,418 INFO L276 IsEmpty]: Start isEmpty. Operand 25086 states and 55249 transitions. [2022-04-18 19:06:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:50,423 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:50,423 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 19:06:50,423 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-04-18 19:06:50,423 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:50,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:50,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1293993857, now seen corresponding path program 21 times [2022-04-18 19:06:50,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:50,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393070571] [2022-04-18 19:06:50,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:50,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:50,761 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 19:06:50,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:50,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393070571] [2022-04-18 19:06:50,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393070571] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:50,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:50,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:50,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990337125] [2022-04-18 19:06:50,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:50,761 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:50,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:50,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:50,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:50,762 INFO L87 Difference]: Start difference. First operand 25086 states and 55249 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 19:06:54,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:54,883 INFO L93 Difference]: Finished difference Result 37667 states and 80898 transitions. [2022-04-18 19:06:54,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-04-18 19:06:54,883 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 19:06:54,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:54,957 INFO L225 Difference]: With dead ends: 37667 [2022-04-18 19:06:54,957 INFO L226 Difference]: Without dead ends: 37660 [2022-04-18 19:06:54,958 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=537, Invalid=1815, Unknown=0, NotChecked=0, Total=2352 [2022-04-18 19:06:54,958 INFO L913 BasicCegarLoop]: 244 mSDtfsCounter, 1103 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 4257 mSolverCounterSat, 908 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 5165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 908 IncrementalHoareTripleChecker+Valid, 4257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:54,958 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 1645 Invalid, 5165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [908 Valid, 4257 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:06:54,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37660 states. [2022-04-18 19:06:55,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37660 to 25961. [2022-04-18 19:06:55,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25961 states, 25918 states have (on average 2.2058029168917357) internal successors, (57170), 25960 states have internal predecessors, (57170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:55,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25961 states to 25961 states and 57170 transitions. [2022-04-18 19:06:55,469 INFO L78 Accepts]: Start accepts. Automaton has 25961 states and 57170 transitions. Word has length 32 [2022-04-18 19:06:55,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:55,469 INFO L478 AbstractCegarLoop]: Abstraction has 25961 states and 57170 transitions. [2022-04-18 19:06:55,470 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 19:06:55,470 INFO L276 IsEmpty]: Start isEmpty. Operand 25961 states and 57170 transitions. [2022-04-18 19:06:55,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:55,475 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:55,475 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 19:06:55,475 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-04-18 19:06:55,475 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:55,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:55,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1207515873, now seen corresponding path program 44 times [2022-04-18 19:06:55,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:55,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821572173] [2022-04-18 19:06:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:55,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:06:56,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:06:56,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:06:56,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821572173] [2022-04-18 19:06:56,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821572173] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:06:56,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:06:56,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:06:56,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667355533] [2022-04-18 19:06:56,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:06:56,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:06:56,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:06:56,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:06:56,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:06:56,063 INFO L87 Difference]: Start difference. First operand 25961 states and 57170 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 19:06:59,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:06:59,343 INFO L93 Difference]: Finished difference Result 32725 states and 70819 transitions. [2022-04-18 19:06:59,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:06:59,344 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 19:06:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:06:59,411 INFO L225 Difference]: With dead ends: 32725 [2022-04-18 19:06:59,411 INFO L226 Difference]: Without dead ends: 32725 [2022-04-18 19:06:59,411 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:06:59,411 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 1112 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 4157 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 4242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 4157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:06:59,412 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 1656 Invalid, 4242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 4157 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:06:59,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32725 states. [2022-04-18 19:06:59,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32725 to 25940. [2022-04-18 19:06:59,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25940 states, 25897 states have (on average 2.205931188940804) internal successors, (57127), 25939 states have internal predecessors, (57127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:06:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25940 states to 25940 states and 57127 transitions. [2022-04-18 19:06:59,920 INFO L78 Accepts]: Start accepts. Automaton has 25940 states and 57127 transitions. Word has length 32 [2022-04-18 19:06:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:06:59,920 INFO L478 AbstractCegarLoop]: Abstraction has 25940 states and 57127 transitions. [2022-04-18 19:06:59,920 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 19:06:59,920 INFO L276 IsEmpty]: Start isEmpty. Operand 25940 states and 57127 transitions. [2022-04-18 19:06:59,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:06:59,926 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:06:59,926 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, 1] [2022-04-18 19:06:59,926 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-04-18 19:06:59,926 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:06:59,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:06:59,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1207292673, now seen corresponding path program 45 times [2022-04-18 19:06:59,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:06:59,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408457305] [2022-04-18 19:06:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:06:59,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:06:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:00,468 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 19:07:00,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:00,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408457305] [2022-04-18 19:07:00,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408457305] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:00,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:00,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:07:00,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754857805] [2022-04-18 19:07:00,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:00,469 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:07:00,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:00,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:07:00,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:07:00,470 INFO L87 Difference]: Start difference. First operand 25940 states and 57127 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 19:07:03,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:03,147 INFO L93 Difference]: Finished difference Result 33822 states and 74095 transitions. [2022-04-18 19:07:03,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:07:03,147 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 19:07:03,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:03,217 INFO L225 Difference]: With dead ends: 33822 [2022-04-18 19:07:03,217 INFO L226 Difference]: Without dead ends: 33822 [2022-04-18 19:07:03,217 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:07:03,217 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 689 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 3823 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 3861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:03,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 1357 Invalid, 3861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3823 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:07:03,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33822 states. [2022-04-18 19:07:03,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33822 to 26068. [2022-04-18 19:07:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26068 states, 26025 states have (on average 2.2061863592699327) internal successors, (57416), 26067 states have internal predecessors, (57416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:03,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26068 states to 26068 states and 57416 transitions. [2022-04-18 19:07:03,680 INFO L78 Accepts]: Start accepts. Automaton has 26068 states and 57416 transitions. Word has length 32 [2022-04-18 19:07:03,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:03,680 INFO L478 AbstractCegarLoop]: Abstraction has 26068 states and 57416 transitions. [2022-04-18 19:07:03,680 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 19:07:03,680 INFO L276 IsEmpty]: Start isEmpty. Operand 26068 states and 57416 transitions. [2022-04-18 19:07:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:03,686 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:03,686 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 19:07:03,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-04-18 19:07:03,686 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:03,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:03,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1415790831, now seen corresponding path program 46 times [2022-04-18 19:07:03,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:03,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266933765] [2022-04-18 19:07:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:03,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:04,278 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 19:07:04,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:04,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266933765] [2022-04-18 19:07:04,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266933765] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:04,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:04,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:04,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781238714] [2022-04-18 19:07:04,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:04,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:04,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:04,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:04,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:04,279 INFO L87 Difference]: Start difference. First operand 26068 states and 57416 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 19:07:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:06,723 INFO L93 Difference]: Finished difference Result 33580 states and 72653 transitions. [2022-04-18 19:07:06,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:07:06,723 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 19:07:06,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:06,790 INFO L225 Difference]: With dead ends: 33580 [2022-04-18 19:07:06,790 INFO L226 Difference]: Without dead ends: 33580 [2022-04-18 19:07:06,791 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:07:06,791 INFO L913 BasicCegarLoop]: 279 mSDtfsCounter, 731 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 3023 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:06,791 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 1793 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3023 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:07:06,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33580 states. [2022-04-18 19:07:07,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33580 to 26070. [2022-04-18 19:07:07,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26070 states, 26027 states have (on average 2.206208936873247) internal successors, (57421), 26069 states have internal predecessors, (57421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:07,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26070 states to 26070 states and 57421 transitions. [2022-04-18 19:07:07,393 INFO L78 Accepts]: Start accepts. Automaton has 26070 states and 57421 transitions. Word has length 32 [2022-04-18 19:07:07,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:07,393 INFO L478 AbstractCegarLoop]: Abstraction has 26070 states and 57421 transitions. [2022-04-18 19:07:07,393 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 19:07:07,393 INFO L276 IsEmpty]: Start isEmpty. Operand 26070 states and 57421 transitions. [2022-04-18 19:07:07,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:07,398 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:07,399 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 19:07:07,399 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-04-18 19:07:07,399 INFO L403 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1416014031, now seen corresponding path program 47 times [2022-04-18 19:07:07,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:07,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177539044] [2022-04-18 19:07:07,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:07,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:07,989 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 19:07:07,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:07,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177539044] [2022-04-18 19:07:07,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177539044] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:07,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:07,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:07,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530868526] [2022-04-18 19:07:07,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:07,990 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:07,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:07,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:07,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:07,991 INFO L87 Difference]: Start difference. First operand 26070 states and 57421 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 19:07:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:10,534 INFO L93 Difference]: Finished difference Result 33564 states and 72621 transitions. [2022-04-18 19:07:10,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:07:10,534 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 19:07:10,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:10,600 INFO L225 Difference]: With dead ends: 33564 [2022-04-18 19:07:10,600 INFO L226 Difference]: Without dead ends: 33564 [2022-04-18 19:07:10,600 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:07:10,601 INFO L913 BasicCegarLoop]: 279 mSDtfsCounter, 828 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 3067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:10,601 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 1641 Invalid, 3067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2996 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:07:10,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33564 states. [2022-04-18 19:07:11,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33564 to 26070. [2022-04-18 19:07:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26070 states, 26027 states have (on average 2.206208936873247) internal successors, (57421), 26069 states have internal predecessors, (57421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26070 states to 26070 states and 57421 transitions. [2022-04-18 19:07:11,109 INFO L78 Accepts]: Start accepts. Automaton has 26070 states and 57421 transitions. Word has length 32 [2022-04-18 19:07:11,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:11,110 INFO L478 AbstractCegarLoop]: Abstraction has 26070 states and 57421 transitions. [2022-04-18 19:07:11,110 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 19:07:11,110 INFO L276 IsEmpty]: Start isEmpty. Operand 26070 states and 57421 transitions. [2022-04-18 19:07:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:11,116 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:11,116 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 19:07:11,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-04-18 19:07:11,116 INFO L403 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:11,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1220067483, now seen corresponding path program 48 times [2022-04-18 19:07:11,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:11,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028211639] [2022-04-18 19:07:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:11,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:11,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:11,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028211639] [2022-04-18 19:07:11,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028211639] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:11,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:11,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:11,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104246870] [2022-04-18 19:07:11,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:11,661 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:11,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:11,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:11,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:11,662 INFO L87 Difference]: Start difference. First operand 26070 states and 57421 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 19:07:15,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:15,774 INFO L93 Difference]: Finished difference Result 33510 states and 72513 transitions. [2022-04-18 19:07:15,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-18 19:07:15,774 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 19:07:15,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:15,838 INFO L225 Difference]: With dead ends: 33510 [2022-04-18 19:07:15,839 INFO L226 Difference]: Without dead ends: 33510 [2022-04-18 19:07:15,839 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=328, Invalid=1004, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:07:15,839 INFO L913 BasicCegarLoop]: 282 mSDtfsCounter, 850 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 5783 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1840 SdHoareTripleChecker+Invalid, 5845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 5783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:15,839 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 1840 Invalid, 5845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 5783 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-18 19:07:15,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33510 states. [2022-04-18 19:07:16,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33510 to 26074. [2022-04-18 19:07:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26074 states, 26031 states have (on average 2.2062540816718528) internal successors, (57431), 26073 states have internal predecessors, (57431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:16,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26074 states to 26074 states and 57431 transitions. [2022-04-18 19:07:16,324 INFO L78 Accepts]: Start accepts. Automaton has 26074 states and 57431 transitions. Word has length 32 [2022-04-18 19:07:16,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:16,324 INFO L478 AbstractCegarLoop]: Abstraction has 26074 states and 57431 transitions. [2022-04-18 19:07:16,324 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 19:07:16,325 INFO L276 IsEmpty]: Start isEmpty. Operand 26074 states and 57431 transitions. [2022-04-18 19:07:16,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:16,330 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:16,330 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 19:07:16,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-04-18 19:07:16,330 INFO L403 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:16,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:16,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1220290683, now seen corresponding path program 49 times [2022-04-18 19:07:16,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:16,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381194621] [2022-04-18 19:07:16,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:16,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:16,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:16,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381194621] [2022-04-18 19:07:16,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381194621] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:16,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:16,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:16,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279724008] [2022-04-18 19:07:16,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:16,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:16,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:16,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:16,904 INFO L87 Difference]: Start difference. First operand 26074 states and 57431 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 19:07:19,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:19,516 INFO L93 Difference]: Finished difference Result 33532 states and 72557 transitions. [2022-04-18 19:07:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:07:19,516 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 19:07:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:19,575 INFO L225 Difference]: With dead ends: 33532 [2022-04-18 19:07:19,575 INFO L226 Difference]: Without dead ends: 33532 [2022-04-18 19:07:19,575 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=251, Invalid=805, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:07:19,576 INFO L913 BasicCegarLoop]: 280 mSDtfsCounter, 769 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 3301 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 3360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:19,576 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 1798 Invalid, 3360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3301 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:07:19,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33532 states. [2022-04-18 19:07:19,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33532 to 26074. [2022-04-18 19:07:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26074 states, 26031 states have (on average 2.2062540816718528) internal successors, (57431), 26073 states have internal predecessors, (57431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26074 states to 26074 states and 57431 transitions. [2022-04-18 19:07:20,052 INFO L78 Accepts]: Start accepts. Automaton has 26074 states and 57431 transitions. Word has length 32 [2022-04-18 19:07:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:20,052 INFO L478 AbstractCegarLoop]: Abstraction has 26074 states and 57431 transitions. [2022-04-18 19:07:20,052 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 19:07:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 26074 states and 57431 transitions. [2022-04-18 19:07:20,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:20,057 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:20,057 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 19:07:20,058 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-04-18 19:07:20,058 INFO L403 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:20,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:20,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1543820943, now seen corresponding path program 50 times [2022-04-18 19:07:20,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:20,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972688041] [2022-04-18 19:07:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:20,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:20,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:20,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972688041] [2022-04-18 19:07:20,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972688041] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:20,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:20,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:20,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142497321] [2022-04-18 19:07:20,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:20,609 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:20,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:20,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:20,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:20,610 INFO L87 Difference]: Start difference. First operand 26074 states and 57431 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 19:07:23,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:23,986 INFO L93 Difference]: Finished difference Result 33482 states and 72457 transitions. [2022-04-18 19:07:23,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:07:23,986 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 19:07:23,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:24,049 INFO L225 Difference]: With dead ends: 33482 [2022-04-18 19:07:24,050 INFO L226 Difference]: Without dead ends: 33482 [2022-04-18 19:07:24,050 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2022-04-18 19:07:24,050 INFO L913 BasicCegarLoop]: 282 mSDtfsCounter, 850 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 4376 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 4433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:24,051 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [850 Valid, 1817 Invalid, 4433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 4376 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:07:24,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33482 states. [2022-04-18 19:07:24,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33482 to 25649. [2022-04-18 19:07:24,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25649 states, 25606 states have (on average 2.2060454580957587) internal successors, (56488), 25648 states have internal predecessors, (56488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25649 states to 25649 states and 56488 transitions. [2022-04-18 19:07:24,596 INFO L78 Accepts]: Start accepts. Automaton has 25649 states and 56488 transitions. Word has length 32 [2022-04-18 19:07:24,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:24,596 INFO L478 AbstractCegarLoop]: Abstraction has 25649 states and 56488 transitions. [2022-04-18 19:07:24,596 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 19:07:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 25649 states and 56488 transitions. [2022-04-18 19:07:24,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:24,602 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:24,602 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 19:07:24,602 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-04-18 19:07:24,602 INFO L403 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:24,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:24,603 INFO L85 PathProgramCache]: Analyzing trace with hash 80665389, now seen corresponding path program 51 times [2022-04-18 19:07:24,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:24,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074507868] [2022-04-18 19:07:24,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:24,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:25,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:25,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074507868] [2022-04-18 19:07:25,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074507868] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:25,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:25,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:25,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909374736] [2022-04-18 19:07:25,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:25,091 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:25,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:25,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:25,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:25,091 INFO L87 Difference]: Start difference. First operand 25649 states and 56488 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 19:07:27,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:27,302 INFO L93 Difference]: Finished difference Result 31392 states and 68208 transitions. [2022-04-18 19:07:27,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-18 19:07:27,302 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 19:07:27,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:27,362 INFO L225 Difference]: With dead ends: 31392 [2022-04-18 19:07:27,363 INFO L226 Difference]: Without dead ends: 31392 [2022-04-18 19:07:27,363 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:07:27,363 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 628 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 3061 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 3114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 3061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:27,363 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [628 Valid, 1275 Invalid, 3114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 3061 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:07:27,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31392 states. [2022-04-18 19:07:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31392 to 25653. [2022-04-18 19:07:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25653 states, 25610 states have (on average 2.206091370558376) internal successors, (56498), 25652 states have internal predecessors, (56498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:27,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25653 states to 25653 states and 56498 transitions. [2022-04-18 19:07:27,837 INFO L78 Accepts]: Start accepts. Automaton has 25653 states and 56498 transitions. Word has length 32 [2022-04-18 19:07:27,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:27,838 INFO L478 AbstractCegarLoop]: Abstraction has 25653 states and 56498 transitions. [2022-04-18 19:07:27,838 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 19:07:27,838 INFO L276 IsEmpty]: Start isEmpty. Operand 25653 states and 56498 transitions. [2022-04-18 19:07:27,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:27,843 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:27,843 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 19:07:27,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-04-18 19:07:27,843 INFO L403 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:27,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:27,844 INFO L85 PathProgramCache]: Analyzing trace with hash 80442189, now seen corresponding path program 52 times [2022-04-18 19:07:27,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:27,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094036256] [2022-04-18 19:07:27,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:27,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:28,597 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 19:07:28,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:28,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094036256] [2022-04-18 19:07:28,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094036256] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:28,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:28,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:28,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881780799] [2022-04-18 19:07:28,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:28,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:28,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:28,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:28,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:28,598 INFO L87 Difference]: Start difference. First operand 25653 states and 56498 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 19:07:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:31,295 INFO L93 Difference]: Finished difference Result 48162 states and 105791 transitions. [2022-04-18 19:07:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 19:07:31,296 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 19:07:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:31,389 INFO L225 Difference]: With dead ends: 48162 [2022-04-18 19:07:31,390 INFO L226 Difference]: Without dead ends: 48162 [2022-04-18 19:07:31,390 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:07:31,390 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 811 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 3650 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 3716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:31,390 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 1209 Invalid, 3716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3650 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:07:31,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48162 states. [2022-04-18 19:07:31,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48162 to 25658. [2022-04-18 19:07:31,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25658 states, 25615 states have (on average 2.2061292211594767) internal successors, (56510), 25657 states have internal predecessors, (56510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:31,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25658 states to 25658 states and 56510 transitions. [2022-04-18 19:07:31,919 INFO L78 Accepts]: Start accepts. Automaton has 25658 states and 56510 transitions. Word has length 32 [2022-04-18 19:07:31,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:31,920 INFO L478 AbstractCegarLoop]: Abstraction has 25658 states and 56510 transitions. [2022-04-18 19:07:31,920 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 19:07:31,920 INFO L276 IsEmpty]: Start isEmpty. Operand 25658 states and 56510 transitions. [2022-04-18 19:07:31,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:31,925 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:31,925 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 19:07:31,925 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-04-18 19:07:31,925 INFO L403 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:31,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:31,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1203325537, now seen corresponding path program 53 times [2022-04-18 19:07:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:31,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137628842] [2022-04-18 19:07:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:32,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137628842] [2022-04-18 19:07:32,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137628842] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:32,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:32,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:32,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889994714] [2022-04-18 19:07:32,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:32,428 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:32,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:32,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:32,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:32,428 INFO L87 Difference]: Start difference. First operand 25658 states and 56510 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 19:07:35,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:35,272 INFO L93 Difference]: Finished difference Result 31417 states and 68262 transitions. [2022-04-18 19:07:35,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 19:07:35,272 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 19:07:35,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:35,345 INFO L225 Difference]: With dead ends: 31417 [2022-04-18 19:07:35,346 INFO L226 Difference]: Without dead ends: 31417 [2022-04-18 19:07:35,346 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:07:35,346 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 723 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 4176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:35,347 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [723 Valid, 1188 Invalid, 4176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 4112 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:07:35,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31417 states. [2022-04-18 19:07:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31417 to 25658. [2022-04-18 19:07:35,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25658 states, 25615 states have (on average 2.2061292211594767) internal successors, (56510), 25657 states have internal predecessors, (56510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:35,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25658 states to 25658 states and 56510 transitions. [2022-04-18 19:07:35,796 INFO L78 Accepts]: Start accepts. Automaton has 25658 states and 56510 transitions. Word has length 32 [2022-04-18 19:07:35,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:35,796 INFO L478 AbstractCegarLoop]: Abstraction has 25658 states and 56510 transitions. [2022-04-18 19:07:35,796 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 19:07:35,796 INFO L276 IsEmpty]: Start isEmpty. Operand 25658 states and 56510 transitions. [2022-04-18 19:07:35,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:35,803 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:35,803 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 19:07:35,803 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-04-18 19:07:35,803 INFO L403 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:35,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:35,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1203548737, now seen corresponding path program 54 times [2022-04-18 19:07:35,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:35,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059523773] [2022-04-18 19:07:35,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:35,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:36,418 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 19:07:36,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:36,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059523773] [2022-04-18 19:07:36,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059523773] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:36,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:36,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:36,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061260015] [2022-04-18 19:07:36,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:36,419 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:36,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:36,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:36,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:36,419 INFO L87 Difference]: Start difference. First operand 25658 states and 56510 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 19:07:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:38,888 INFO L93 Difference]: Finished difference Result 31419 states and 68266 transitions. [2022-04-18 19:07:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:07:38,889 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 19:07:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:38,947 INFO L225 Difference]: With dead ends: 31419 [2022-04-18 19:07:38,947 INFO L226 Difference]: Without dead ends: 31419 [2022-04-18 19:07:38,947 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:07:38,947 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 617 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 3486 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 3486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:38,948 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 1273 Invalid, 3545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 3486 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:07:38,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31419 states. [2022-04-18 19:07:39,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31419 to 25656. [2022-04-18 19:07:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25656 states, 25613 states have (on average 2.2061062741576545) internal successors, (56505), 25655 states have internal predecessors, (56505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25656 states to 25656 states and 56505 transitions. [2022-04-18 19:07:39,563 INFO L78 Accepts]: Start accepts. Automaton has 25656 states and 56505 transitions. Word has length 32 [2022-04-18 19:07:39,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:39,563 INFO L478 AbstractCegarLoop]: Abstraction has 25656 states and 56505 transitions. [2022-04-18 19:07:39,563 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 19:07:39,564 INFO L276 IsEmpty]: Start isEmpty. Operand 25656 states and 56505 transitions. [2022-04-18 19:07:39,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:39,569 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:39,569 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, 1] [2022-04-18 19:07:39,569 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-04-18 19:07:39,569 INFO L403 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:39,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:39,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1154978157, now seen corresponding path program 55 times [2022-04-18 19:07:39,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:39,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769257250] [2022-04-18 19:07:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:39,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:40,054 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 19:07:40,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:40,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769257250] [2022-04-18 19:07:40,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769257250] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:40,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:40,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:40,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804198470] [2022-04-18 19:07:40,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:40,055 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:40,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:40,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:40,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:40,055 INFO L87 Difference]: Start difference. First operand 25656 states and 56505 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 19:07:42,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:42,578 INFO L93 Difference]: Finished difference Result 31421 states and 68269 transitions. [2022-04-18 19:07:42,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:07:42,578 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 19:07:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:42,639 INFO L225 Difference]: With dead ends: 31421 [2022-04-18 19:07:42,640 INFO L226 Difference]: Without dead ends: 31421 [2022-04-18 19:07:42,640 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:07:42,640 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 723 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 3665 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 3729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:42,640 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [723 Valid, 1162 Invalid, 3729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3665 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:07:42,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31421 states. [2022-04-18 19:07:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31421 to 25654. [2022-04-18 19:07:43,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25654 states, 25611 states have (on average 2.2061223692944436) internal successors, (56501), 25653 states have internal predecessors, (56501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:43,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25654 states to 25654 states and 56501 transitions. [2022-04-18 19:07:43,122 INFO L78 Accepts]: Start accepts. Automaton has 25654 states and 56501 transitions. Word has length 32 [2022-04-18 19:07:43,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:43,122 INFO L478 AbstractCegarLoop]: Abstraction has 25654 states and 56501 transitions. [2022-04-18 19:07:43,122 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 19:07:43,122 INFO L276 IsEmpty]: Start isEmpty. Operand 25654 states and 56501 transitions. [2022-04-18 19:07:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:43,128 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:43,128 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 19:07:43,128 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-04-18 19:07:43,128 INFO L403 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1154754957, now seen corresponding path program 56 times [2022-04-18 19:07:43,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:43,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758499627] [2022-04-18 19:07:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:43,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:43,887 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 19:07:43,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:43,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758499627] [2022-04-18 19:07:43,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758499627] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:43,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:43,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819170120] [2022-04-18 19:07:43,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:43,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:43,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:43,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:43,888 INFO L87 Difference]: Start difference. First operand 25654 states and 56501 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 19:07:46,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:46,274 INFO L93 Difference]: Finished difference Result 31419 states and 68265 transitions. [2022-04-18 19:07:46,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:07:46,275 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 19:07:46,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:46,334 INFO L225 Difference]: With dead ends: 31419 [2022-04-18 19:07:46,334 INFO L226 Difference]: Without dead ends: 31419 [2022-04-18 19:07:46,335 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:07:46,335 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 716 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 3231 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 3299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:46,335 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [716 Valid, 1154 Invalid, 3299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3231 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:07:46,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31419 states. [2022-04-18 19:07:46,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31419 to 25652. [2022-04-18 19:07:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25652 states, 25609 states have (on average 2.2060994181732982) internal successors, (56496), 25651 states have internal predecessors, (56496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25652 states to 25652 states and 56496 transitions. [2022-04-18 19:07:46,810 INFO L78 Accepts]: Start accepts. Automaton has 25652 states and 56496 transitions. Word has length 32 [2022-04-18 19:07:46,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:46,811 INFO L478 AbstractCegarLoop]: Abstraction has 25652 states and 56496 transitions. [2022-04-18 19:07:46,811 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 19:07:46,811 INFO L276 IsEmpty]: Start isEmpty. Operand 25652 states and 56496 transitions. [2022-04-18 19:07:46,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:46,816 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:46,816 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 19:07:46,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-04-18 19:07:46,817 INFO L403 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:46,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:46,817 INFO L85 PathProgramCache]: Analyzing trace with hash 47548447, now seen corresponding path program 57 times [2022-04-18 19:07:46,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:46,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074178883] [2022-04-18 19:07:46,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:46,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:47,352 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 19:07:47,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:47,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074178883] [2022-04-18 19:07:47,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074178883] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:47,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:47,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:47,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062938968] [2022-04-18 19:07:47,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:47,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:47,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:47,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:47,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:47,354 INFO L87 Difference]: Start difference. First operand 25652 states and 56496 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 19:07:50,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:50,983 INFO L93 Difference]: Finished difference Result 31385 states and 68194 transitions. [2022-04-18 19:07:50,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:07:50,987 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 19:07:50,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:51,057 INFO L225 Difference]: With dead ends: 31385 [2022-04-18 19:07:51,058 INFO L226 Difference]: Without dead ends: 31385 [2022-04-18 19:07:51,058 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=259, Invalid=733, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:07:51,058 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 870 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 4969 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 5040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:51,059 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 1192 Invalid, 5040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 4969 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:07:51,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31385 states. [2022-04-18 19:07:51,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31385 to 25650. [2022-04-18 19:07:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25650 states, 25607 states have (on average 2.2060764634670207) internal successors, (56491), 25649 states have internal predecessors, (56491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:51,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25650 states to 25650 states and 56491 transitions. [2022-04-18 19:07:51,544 INFO L78 Accepts]: Start accepts. Automaton has 25650 states and 56491 transitions. Word has length 32 [2022-04-18 19:07:51,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:51,544 INFO L478 AbstractCegarLoop]: Abstraction has 25650 states and 56491 transitions. [2022-04-18 19:07:51,544 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 19:07:51,544 INFO L276 IsEmpty]: Start isEmpty. Operand 25650 states and 56491 transitions. [2022-04-18 19:07:51,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:51,549 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:51,549 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 19:07:51,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-04-18 19:07:51,550 INFO L403 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:51,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:51,550 INFO L85 PathProgramCache]: Analyzing trace with hash 47325247, now seen corresponding path program 58 times [2022-04-18 19:07:51,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:51,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574311527] [2022-04-18 19:07:51,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:51,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:07:52,236 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:52,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574311527] [2022-04-18 19:07:52,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574311527] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:52,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:52,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:07:52,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423194173] [2022-04-18 19:07:52,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:52,236 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:07:52,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:52,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:07:52,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:07:52,237 INFO L87 Difference]: Start difference. First operand 25650 states and 56491 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 19:07:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:55,552 INFO L93 Difference]: Finished difference Result 31391 states and 68208 transitions. [2022-04-18 19:07:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 19:07:55,552 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 19:07:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:55,612 INFO L225 Difference]: With dead ends: 31391 [2022-04-18 19:07:55,613 INFO L226 Difference]: Without dead ends: 31391 [2022-04-18 19:07:55,613 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:07:55,613 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 656 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 4917 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 4969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 4917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:55,614 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 1302 Invalid, 4969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 4917 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:07:55,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31391 states. [2022-04-18 19:07:56,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31391 to 25650. [2022-04-18 19:07:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25650 states, 25607 states have (on average 2.2060764634670207) internal successors, (56491), 25649 states have internal predecessors, (56491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:56,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25650 states to 25650 states and 56491 transitions. [2022-04-18 19:07:56,174 INFO L78 Accepts]: Start accepts. Automaton has 25650 states and 56491 transitions. Word has length 32 [2022-04-18 19:07:56,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:56,174 INFO L478 AbstractCegarLoop]: Abstraction has 25650 states and 56491 transitions. [2022-04-18 19:07:56,174 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 19:07:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 25650 states and 56491 transitions. [2022-04-18 19:07:56,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:56,180 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:56,180 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 19:07:56,180 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-04-18 19:07:56,180 INFO L403 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:56,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:56,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1236442479, now seen corresponding path program 59 times [2022-04-18 19:07:56,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:56,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717944129] [2022-04-18 19:07:56,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:56,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:56,547 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 19:07:56,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:56,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717944129] [2022-04-18 19:07:56,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717944129] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:56,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:56,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:07:56,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490894613] [2022-04-18 19:07:56,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:56,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:07:56,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:56,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:07:56,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:07:56,549 INFO L87 Difference]: Start difference. First operand 25650 states and 56491 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 19:07:59,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:59,177 INFO L93 Difference]: Finished difference Result 32253 states and 70876 transitions. [2022-04-18 19:07:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 19:07:59,178 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 19:07:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:59,237 INFO L225 Difference]: With dead ends: 32253 [2022-04-18 19:07:59,237 INFO L226 Difference]: Without dead ends: 32253 [2022-04-18 19:07:59,238 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=144, Invalid=558, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:07:59,238 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 460 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 4567 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 4599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:59,238 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [460 Valid, 998 Invalid, 4599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 4567 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:07:59,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32253 states. [2022-04-18 19:07:59,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32253 to 25653. [2022-04-18 19:07:59,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25653 states, 25610 states have (on average 2.206091370558376) internal successors, (56498), 25652 states have internal predecessors, (56498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:07:59,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25653 states to 25653 states and 56498 transitions. [2022-04-18 19:07:59,657 INFO L78 Accepts]: Start accepts. Automaton has 25653 states and 56498 transitions. Word has length 32 [2022-04-18 19:07:59,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:59,657 INFO L478 AbstractCegarLoop]: Abstraction has 25653 states and 56498 transitions. [2022-04-18 19:07:59,657 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 19:07:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand 25653 states and 56498 transitions. [2022-04-18 19:07:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:07:59,662 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:59,662 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 19:07:59,662 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-04-18 19:07:59,662 INFO L403 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:07:59,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:59,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1236665679, now seen corresponding path program 60 times [2022-04-18 19:07:59,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:59,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216163022] [2022-04-18 19:07:59,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:59,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:00,248 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 19:08:00,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:00,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216163022] [2022-04-18 19:08:00,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216163022] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:00,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:00,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:00,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756995024] [2022-04-18 19:08:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:00,249 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:00,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:00,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:00,250 INFO L87 Difference]: Start difference. First operand 25653 states and 56498 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 19:08:03,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:03,060 INFO L93 Difference]: Finished difference Result 31412 states and 68251 transitions. [2022-04-18 19:08:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-18 19:08:03,061 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 19:08:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:03,126 INFO L225 Difference]: With dead ends: 31412 [2022-04-18 19:08:03,126 INFO L226 Difference]: Without dead ends: 31412 [2022-04-18 19:08:03,126 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:08:03,127 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 766 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 3771 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 3834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:03,127 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 1162 Invalid, 3834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 3771 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:08:03,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31412 states. [2022-04-18 19:08:03,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31412 to 25644. [2022-04-18 19:08:03,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25644 states, 25601 states have (on average 2.2060856997773524) internal successors, (56478), 25643 states have internal predecessors, (56478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25644 states to 25644 states and 56478 transitions. [2022-04-18 19:08:03,650 INFO L78 Accepts]: Start accepts. Automaton has 25644 states and 56478 transitions. Word has length 32 [2022-04-18 19:08:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:03,650 INFO L478 AbstractCegarLoop]: Abstraction has 25644 states and 56478 transitions. [2022-04-18 19:08:03,650 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 19:08:03,650 INFO L276 IsEmpty]: Start isEmpty. Operand 25644 states and 56478 transitions. [2022-04-18 19:08:03,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:03,655 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:03,655 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 19:08:03,655 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-04-18 19:08:03,655 INFO L403 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:03,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:03,656 INFO L85 PathProgramCache]: Analyzing trace with hash -768734771, now seen corresponding path program 61 times [2022-04-18 19:08:03,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:03,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174033323] [2022-04-18 19:08:03,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:03,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:04,215 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 19:08:04,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:04,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174033323] [2022-04-18 19:08:04,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174033323] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:04,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:04,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:04,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794764936] [2022-04-18 19:08:04,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:04,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:04,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:04,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:04,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:04,217 INFO L87 Difference]: Start difference. First operand 25644 states and 56478 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 19:08:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:07,594 INFO L93 Difference]: Finished difference Result 48128 states and 105716 transitions. [2022-04-18 19:08:07,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:08:07,594 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 19:08:07,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:07,691 INFO L225 Difference]: With dead ends: 48128 [2022-04-18 19:08:07,691 INFO L226 Difference]: Without dead ends: 48128 [2022-04-18 19:08:07,691 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:08:07,691 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 963 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 4361 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 4432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:07,692 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 1203 Invalid, 4432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 4361 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:08:07,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48128 states. [2022-04-18 19:08:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48128 to 25647. [2022-04-18 19:08:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25647 states, 25604 states have (on average 2.206061552882362) internal successors, (56484), 25646 states have internal predecessors, (56484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:08,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25647 states to 25647 states and 56484 transitions. [2022-04-18 19:08:08,235 INFO L78 Accepts]: Start accepts. Automaton has 25647 states and 56484 transitions. Word has length 32 [2022-04-18 19:08:08,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:08,236 INFO L478 AbstractCegarLoop]: Abstraction has 25647 states and 56484 transitions. [2022-04-18 19:08:08,236 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 19:08:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 25647 states and 56484 transitions. [2022-04-18 19:08:08,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:08,241 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:08,241 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 19:08:08,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-04-18 19:08:08,241 INFO L403 AbstractCegarLoop]: === Iteration 92 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:08,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:08,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1755067765, now seen corresponding path program 22 times [2022-04-18 19:08:08,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:08,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826313196] [2022-04-18 19:08:08,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:08,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:08,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:08,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826313196] [2022-04-18 19:08:08,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826313196] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:08,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:08,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:08,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042526482] [2022-04-18 19:08:08,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:08,762 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:08,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:08,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:08,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:08,763 INFO L87 Difference]: Start difference. First operand 25647 states and 56484 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 19:08:12,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:12,102 INFO L93 Difference]: Finished difference Result 34632 states and 74943 transitions. [2022-04-18 19:08:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-04-18 19:08:12,103 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 19:08:12,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:12,167 INFO L225 Difference]: With dead ends: 34632 [2022-04-18 19:08:12,167 INFO L226 Difference]: Without dead ends: 34628 [2022-04-18 19:08:12,168 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=390, Invalid=942, Unknown=0, NotChecked=0, Total=1332 [2022-04-18 19:08:12,168 INFO L913 BasicCegarLoop]: 173 mSDtfsCounter, 867 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 3553 mSolverCounterSat, 822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 4375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 822 IncrementalHoareTripleChecker+Valid, 3553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:12,168 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [867 Valid, 959 Invalid, 4375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [822 Valid, 3553 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:08:12,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34628 states. [2022-04-18 19:08:12,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34628 to 26527. [2022-04-18 19:08:12,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26527 states, 26484 states have (on average 2.2094849720586014) internal successors, (58516), 26526 states have internal predecessors, (58516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26527 states to 26527 states and 58516 transitions. [2022-04-18 19:08:12,615 INFO L78 Accepts]: Start accepts. Automaton has 26527 states and 58516 transitions. Word has length 32 [2022-04-18 19:08:12,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:12,615 INFO L478 AbstractCegarLoop]: Abstraction has 26527 states and 58516 transitions. [2022-04-18 19:08:12,615 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 19:08:12,615 INFO L276 IsEmpty]: Start isEmpty. Operand 26527 states and 58516 transitions. [2022-04-18 19:08:12,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:12,620 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:12,621 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 19:08:12,621 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-04-18 19:08:12,621 INFO L403 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:12,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:12,621 INFO L85 PathProgramCache]: Analyzing trace with hash -443369947, now seen corresponding path program 62 times [2022-04-18 19:08:12,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:12,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190076593] [2022-04-18 19:08:12,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:12,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:13,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:13,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190076593] [2022-04-18 19:08:13,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190076593] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:13,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:13,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:13,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129519975] [2022-04-18 19:08:13,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:13,169 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:13,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:13,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:13,169 INFO L87 Difference]: Start difference. First operand 26527 states and 58516 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 19:08:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:16,240 INFO L93 Difference]: Finished difference Result 31740 states and 69023 transitions. [2022-04-18 19:08:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:08:16,240 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 19:08:16,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:16,298 INFO L225 Difference]: With dead ends: 31740 [2022-04-18 19:08:16,298 INFO L226 Difference]: Without dead ends: 31740 [2022-04-18 19:08:16,299 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:08:16,299 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 879 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 4113 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 4191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 4113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:16,299 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 1204 Invalid, 4191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 4113 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:08:16,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31740 states. [2022-04-18 19:08:16,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31740 to 26521. [2022-04-18 19:08:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26521 states, 26478 states have (on average 2.2095324420273434) internal successors, (58504), 26520 states have internal predecessors, (58504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:16,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26521 states to 26521 states and 58504 transitions. [2022-04-18 19:08:16,873 INFO L78 Accepts]: Start accepts. Automaton has 26521 states and 58504 transitions. Word has length 32 [2022-04-18 19:08:16,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:16,873 INFO L478 AbstractCegarLoop]: Abstraction has 26521 states and 58504 transitions. [2022-04-18 19:08:16,873 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 19:08:16,873 INFO L276 IsEmpty]: Start isEmpty. Operand 26521 states and 58504 transitions. [2022-04-18 19:08:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:16,878 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:16,878 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 19:08:16,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-04-18 19:08:16,879 INFO L403 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:16,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:16,880 INFO L85 PathProgramCache]: Analyzing trace with hash -443593147, now seen corresponding path program 63 times [2022-04-18 19:08:16,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:16,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744240844] [2022-04-18 19:08:16,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:16,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:17,467 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 19:08:17,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:17,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744240844] [2022-04-18 19:08:17,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744240844] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:17,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:17,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:17,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559526933] [2022-04-18 19:08:17,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:17,468 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:17,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:17,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:17,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:17,469 INFO L87 Difference]: Start difference. First operand 26521 states and 58504 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 19:08:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:20,608 INFO L93 Difference]: Finished difference Result 31728 states and 68999 transitions. [2022-04-18 19:08:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:08:20,609 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 19:08:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:20,669 INFO L225 Difference]: With dead ends: 31728 [2022-04-18 19:08:20,670 INFO L226 Difference]: Without dead ends: 31728 [2022-04-18 19:08:20,670 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:08:20,670 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 785 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 4188 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 4259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 4188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:20,670 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 1299 Invalid, 4259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 4188 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:08:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31728 states. [2022-04-18 19:08:21,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31728 to 26521. [2022-04-18 19:08:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26521 states, 26478 states have (on average 2.2095324420273434) internal successors, (58504), 26520 states have internal predecessors, (58504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:21,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26521 states to 26521 states and 58504 transitions. [2022-04-18 19:08:21,100 INFO L78 Accepts]: Start accepts. Automaton has 26521 states and 58504 transitions. Word has length 32 [2022-04-18 19:08:21,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:21,101 INFO L478 AbstractCegarLoop]: Abstraction has 26521 states and 58504 transitions. [2022-04-18 19:08:21,101 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 19:08:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 26521 states and 58504 transitions. [2022-04-18 19:08:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:21,107 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:21,107 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 19:08:21,107 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-04-18 19:08:21,107 INFO L403 AbstractCegarLoop]: === Iteration 95 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:21,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:21,108 INFO L85 PathProgramCache]: Analyzing trace with hash 736636255, now seen corresponding path program 23 times [2022-04-18 19:08:21,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:21,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721769397] [2022-04-18 19:08:21,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:21,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:21,700 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 19:08:21,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:21,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721769397] [2022-04-18 19:08:21,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721769397] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:21,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:21,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:21,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702702891] [2022-04-18 19:08:21,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:21,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:21,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:21,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:21,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:21,701 INFO L87 Difference]: Start difference. First operand 26521 states and 58504 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 19:08:25,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:25,843 INFO L93 Difference]: Finished difference Result 37220 states and 80836 transitions. [2022-04-18 19:08:25,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-18 19:08:25,844 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 19:08:25,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:25,915 INFO L225 Difference]: With dead ends: 37220 [2022-04-18 19:08:25,915 INFO L226 Difference]: Without dead ends: 37213 [2022-04-18 19:08:25,915 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=513, Invalid=1293, Unknown=0, NotChecked=0, Total=1806 [2022-04-18 19:08:25,915 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 843 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 3998 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 4727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:25,915 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [843 Valid, 1156 Invalid, 4727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3998 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:08:25,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37213 states. [2022-04-18 19:08:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37213 to 28329. [2022-04-18 19:08:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28329 states, 28286 states have (on average 2.216679629498692) internal successors, (62701), 28328 states have internal predecessors, (62701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:26,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28329 states to 28329 states and 62701 transitions. [2022-04-18 19:08:26,400 INFO L78 Accepts]: Start accepts. Automaton has 28329 states and 62701 transitions. Word has length 32 [2022-04-18 19:08:26,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:26,400 INFO L478 AbstractCegarLoop]: Abstraction has 28329 states and 62701 transitions. [2022-04-18 19:08:26,400 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 19:08:26,400 INFO L276 IsEmpty]: Start isEmpty. Operand 28329 states and 62701 transitions. [2022-04-18 19:08:26,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:26,406 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:26,406 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 19:08:26,406 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-04-18 19:08:26,406 INFO L403 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:26,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:26,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1153356831, now seen corresponding path program 64 times [2022-04-18 19:08:26,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:26,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117914014] [2022-04-18 19:08:26,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:26,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:26,993 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 19:08:26,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:26,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117914014] [2022-04-18 19:08:26,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117914014] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:26,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:26,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:26,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816370915] [2022-04-18 19:08:26,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:26,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:26,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:26,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:26,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:26,995 INFO L87 Difference]: Start difference. First operand 28329 states and 62701 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 19:08:30,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:30,265 INFO L93 Difference]: Finished difference Result 35257 states and 77202 transitions. [2022-04-18 19:08:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:08:30,266 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 19:08:30,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:30,335 INFO L225 Difference]: With dead ends: 35257 [2022-04-18 19:08:30,335 INFO L226 Difference]: Without dead ends: 35257 [2022-04-18 19:08:30,336 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=184, Invalid=572, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:08:30,336 INFO L913 BasicCegarLoop]: 291 mSDtfsCounter, 886 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 4532 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 4615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 4532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:30,336 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [886 Valid, 1393 Invalid, 4615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 4532 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:08:30,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35257 states. [2022-04-18 19:08:30,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35257 to 30147. [2022-04-18 19:08:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30147 states, 30104 states have (on average 2.2235915492957745) internal successors, (66939), 30146 states have internal predecessors, (66939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:30,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30147 states to 30147 states and 66939 transitions. [2022-04-18 19:08:30,836 INFO L78 Accepts]: Start accepts. Automaton has 30147 states and 66939 transitions. Word has length 32 [2022-04-18 19:08:30,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:30,836 INFO L478 AbstractCegarLoop]: Abstraction has 30147 states and 66939 transitions. [2022-04-18 19:08:30,837 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 19:08:30,837 INFO L276 IsEmpty]: Start isEmpty. Operand 30147 states and 66939 transitions. [2022-04-18 19:08:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:30,842 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:30,843 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 19:08:30,843 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-04-18 19:08:30,843 INFO L403 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1153133631, now seen corresponding path program 65 times [2022-04-18 19:08:30,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:30,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204461978] [2022-04-18 19:08:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:30,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:31,566 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 19:08:31,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:31,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204461978] [2022-04-18 19:08:31,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204461978] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:31,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:31,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:31,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96412562] [2022-04-18 19:08:31,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:31,567 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:31,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:31,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:31,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:31,568 INFO L87 Difference]: Start difference. First operand 30147 states and 66939 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 19:08:35,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:35,089 INFO L93 Difference]: Finished difference Result 34733 states and 76612 transitions. [2022-04-18 19:08:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:08:35,090 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 19:08:35,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:35,152 INFO L225 Difference]: With dead ends: 34733 [2022-04-18 19:08:35,153 INFO L226 Difference]: Without dead ends: 34733 [2022-04-18 19:08:35,153 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:08:35,153 INFO L913 BasicCegarLoop]: 276 mSDtfsCounter, 665 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 5457 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 5472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:35,153 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [665 Valid, 1395 Invalid, 5472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 5457 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-18 19:08:35,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34733 states. [2022-04-18 19:08:35,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34733 to 30602. [2022-04-18 19:08:35,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30602 states, 30559 states have (on average 2.224123826041428) internal successors, (67967), 30601 states have internal predecessors, (67967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30602 states to 30602 states and 67967 transitions. [2022-04-18 19:08:35,615 INFO L78 Accepts]: Start accepts. Automaton has 30602 states and 67967 transitions. Word has length 32 [2022-04-18 19:08:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:35,616 INFO L478 AbstractCegarLoop]: Abstraction has 30602 states and 67967 transitions. [2022-04-18 19:08:35,616 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 19:08:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 30602 states and 67967 transitions. [2022-04-18 19:08:35,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:35,621 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:35,621 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 19:08:35,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-04-18 19:08:35,622 INFO L403 AbstractCegarLoop]: === Iteration 98 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:35,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:35,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1408256547, now seen corresponding path program 24 times [2022-04-18 19:08:35,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:35,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337467241] [2022-04-18 19:08:35,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:35,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:36,015 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 19:08:36,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:36,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337467241] [2022-04-18 19:08:36,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337467241] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:36,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:36,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:36,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912840633] [2022-04-18 19:08:36,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:36,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:36,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:36,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:36,016 INFO L87 Difference]: Start difference. First operand 30602 states and 67967 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 19:08:40,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:40,337 INFO L93 Difference]: Finished difference Result 41062 states and 89594 transitions. [2022-04-18 19:08:40,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-04-18 19:08:40,337 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 19:08:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:40,418 INFO L225 Difference]: With dead ends: 41062 [2022-04-18 19:08:40,418 INFO L226 Difference]: Without dead ends: 41055 [2022-04-18 19:08:40,419 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=528, Invalid=1364, Unknown=0, NotChecked=0, Total=1892 [2022-04-18 19:08:40,419 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 978 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 4601 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 5281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 4601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:40,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 1228 Invalid, 5281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 4601 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:08:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41055 states. [2022-04-18 19:08:40,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41055 to 28792. [2022-04-18 19:08:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28792 states, 28749 states have (on average 2.2172945145918117) internal successors, (63745), 28791 states have internal predecessors, (63745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28792 states to 28792 states and 63745 transitions. [2022-04-18 19:08:41,040 INFO L78 Accepts]: Start accepts. Automaton has 28792 states and 63745 transitions. Word has length 32 [2022-04-18 19:08:41,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:41,040 INFO L478 AbstractCegarLoop]: Abstraction has 28792 states and 63745 transitions. [2022-04-18 19:08:41,040 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 19:08:41,040 INFO L276 IsEmpty]: Start isEmpty. Operand 28792 states and 63745 transitions. [2022-04-18 19:08:41,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:41,045 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:41,045 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, 1] [2022-04-18 19:08:41,045 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-04-18 19:08:41,046 INFO L403 AbstractCegarLoop]: === Iteration 99 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:41,046 INFO L85 PathProgramCache]: Analyzing trace with hash -370125233, now seen corresponding path program 25 times [2022-04-18 19:08:41,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:41,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470202213] [2022-04-18 19:08:41,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:41,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:41,417 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 19:08:41,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:41,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470202213] [2022-04-18 19:08:41,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470202213] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:41,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:41,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:41,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772249363] [2022-04-18 19:08:41,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:41,418 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:41,418 INFO L87 Difference]: Start difference. First operand 28792 states and 63745 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 19:08:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:45,871 INFO L93 Difference]: Finished difference Result 43960 states and 95252 transitions. [2022-04-18 19:08:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-04-18 19:08:45,872 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 19:08:45,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:45,962 INFO L225 Difference]: With dead ends: 43960 [2022-04-18 19:08:45,962 INFO L226 Difference]: Without dead ends: 43953 [2022-04-18 19:08:45,963 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=568, Invalid=1784, Unknown=0, NotChecked=0, Total=2352 [2022-04-18 19:08:45,963 INFO L913 BasicCegarLoop]: 302 mSDtfsCounter, 1009 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 4799 mSolverCounterSat, 721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 5520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 721 IncrementalHoareTripleChecker+Valid, 4799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:45,963 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1009 Valid, 1656 Invalid, 5520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [721 Valid, 4799 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:08:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43953 states. [2022-04-18 19:08:46,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43953 to 32675. [2022-04-18 19:08:46,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32675 states, 32632 states have (on average 2.2192632998283894) internal successors, (72419), 32674 states have internal predecessors, (72419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:46,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32675 states to 32675 states and 72419 transitions. [2022-04-18 19:08:46,642 INFO L78 Accepts]: Start accepts. Automaton has 32675 states and 72419 transitions. Word has length 32 [2022-04-18 19:08:46,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:46,643 INFO L478 AbstractCegarLoop]: Abstraction has 32675 states and 72419 transitions. [2022-04-18 19:08:46,643 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 19:08:46,643 INFO L276 IsEmpty]: Start isEmpty. Operand 32675 states and 72419 transitions. [2022-04-18 19:08:46,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:46,648 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:46,649 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 19:08:46,649 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-04-18 19:08:46,649 INFO L403 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:46,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:46,649 INFO L85 PathProgramCache]: Analyzing trace with hash 2131384497, now seen corresponding path program 66 times [2022-04-18 19:08:46,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:46,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798335441] [2022-04-18 19:08:46,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:46,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:47,158 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 19:08:47,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:47,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798335441] [2022-04-18 19:08:47,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798335441] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:47,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:47,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:47,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152170447] [2022-04-18 19:08:47,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:47,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:47,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:47,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:47,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:47,160 INFO L87 Difference]: Start difference. First operand 32675 states and 72419 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 19:08:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:51,163 INFO L93 Difference]: Finished difference Result 37733 states and 82181 transitions. [2022-04-18 19:08:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:08:51,164 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 19:08:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:51,260 INFO L225 Difference]: With dead ends: 37733 [2022-04-18 19:08:51,260 INFO L226 Difference]: Without dead ends: 37733 [2022-04-18 19:08:51,260 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:08:51,260 INFO L913 BasicCegarLoop]: 321 mSDtfsCounter, 1045 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 5568 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 5633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 5568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:51,260 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1045 Valid, 1709 Invalid, 5633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 5568 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-18 19:08:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37733 states. [2022-04-18 19:08:51,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37733 to 32875. [2022-04-18 19:08:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32875 states, 32832 states have (on average 2.2189327485380117) internal successors, (72852), 32874 states have internal predecessors, (72852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:51,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32875 states to 32875 states and 72852 transitions. [2022-04-18 19:08:51,870 INFO L78 Accepts]: Start accepts. Automaton has 32875 states and 72852 transitions. Word has length 32 [2022-04-18 19:08:51,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:51,871 INFO L478 AbstractCegarLoop]: Abstraction has 32875 states and 72852 transitions. [2022-04-18 19:08:51,871 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 19:08:51,871 INFO L276 IsEmpty]: Start isEmpty. Operand 32875 states and 72852 transitions. [2022-04-18 19:08:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:51,877 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:51,877 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 19:08:51,877 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-04-18 19:08:51,877 INFO L403 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:51,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:51,878 INFO L85 PathProgramCache]: Analyzing trace with hash 2131161297, now seen corresponding path program 67 times [2022-04-18 19:08:51,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:51,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465986499] [2022-04-18 19:08:51,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:51,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:52,340 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 19:08:52,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:52,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465986499] [2022-04-18 19:08:52,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465986499] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:52,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:52,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:08:52,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43372430] [2022-04-18 19:08:52,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:52,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:08:52,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:52,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:08:52,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:08:52,343 INFO L87 Difference]: Start difference. First operand 32875 states and 72852 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 19:08:54,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:54,807 INFO L93 Difference]: Finished difference Result 39888 states and 87663 transitions. [2022-04-18 19:08:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:08:54,808 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 19:08:54,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:54,883 INFO L225 Difference]: With dead ends: 39888 [2022-04-18 19:08:54,884 INFO L226 Difference]: Without dead ends: 39888 [2022-04-18 19:08:54,884 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:08:54,884 INFO L913 BasicCegarLoop]: 272 mSDtfsCounter, 704 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 3921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:54,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 1443 Invalid, 3921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:08:54,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39888 states. [2022-04-18 19:08:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39888 to 34217. [2022-04-18 19:08:55,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34217 states, 34174 states have (on average 2.2158073389126236) internal successors, (75723), 34216 states have internal predecessors, (75723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:55,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34217 states to 34217 states and 75723 transitions. [2022-04-18 19:08:55,552 INFO L78 Accepts]: Start accepts. Automaton has 34217 states and 75723 transitions. Word has length 32 [2022-04-18 19:08:55,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:55,553 INFO L478 AbstractCegarLoop]: Abstraction has 34217 states and 75723 transitions. [2022-04-18 19:08:55,553 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 19:08:55,553 INFO L276 IsEmpty]: Start isEmpty. Operand 34217 states and 75723 transitions. [2022-04-18 19:08:55,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:55,559 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:55,559 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 19:08:55,559 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-04-18 19:08:55,559 INFO L403 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:55,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:55,560 INFO L85 PathProgramCache]: Analyzing trace with hash 353516187, now seen corresponding path program 68 times [2022-04-18 19:08:55,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:55,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493585032] [2022-04-18 19:08:55,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:55,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:08:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:08:56,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:08:56,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493585032] [2022-04-18 19:08:56,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493585032] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:08:56,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:08:56,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:08:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324212028] [2022-04-18 19:08:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:08:56,082 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:08:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:08:56,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:08:56,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:08:56,083 INFO L87 Difference]: Start difference. First operand 34217 states and 75723 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 19:08:58,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:08:58,739 INFO L93 Difference]: Finished difference Result 39158 states and 85355 transitions. [2022-04-18 19:08:58,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:08:58,739 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 19:08:58,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:08:58,810 INFO L225 Difference]: With dead ends: 39158 [2022-04-18 19:08:58,810 INFO L226 Difference]: Without dead ends: 39158 [2022-04-18 19:08:58,810 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:08:58,811 INFO L913 BasicCegarLoop]: 293 mSDtfsCounter, 836 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 3704 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:08:58,811 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 1528 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3704 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:08:58,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39158 states. [2022-04-18 19:08:59,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39158 to 34213. [2022-04-18 19:08:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34213 states, 34170 states have (on average 2.2158326016973953) internal successors, (75715), 34212 states have internal predecessors, (75715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:08:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34213 states to 34213 states and 75715 transitions. [2022-04-18 19:08:59,444 INFO L78 Accepts]: Start accepts. Automaton has 34213 states and 75715 transitions. Word has length 32 [2022-04-18 19:08:59,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:08:59,444 INFO L478 AbstractCegarLoop]: Abstraction has 34213 states and 75715 transitions. [2022-04-18 19:08:59,444 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 19:08:59,444 INFO L276 IsEmpty]: Start isEmpty. Operand 34213 states and 75715 transitions. [2022-04-18 19:08:59,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:08:59,449 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:08:59,449 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 19:08:59,449 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-04-18 19:08:59,449 INFO L403 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:08:59,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:08:59,450 INFO L85 PathProgramCache]: Analyzing trace with hash 353292987, now seen corresponding path program 69 times [2022-04-18 19:08:59,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:08:59,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562256330] [2022-04-18 19:08:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:08:59,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:08:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:00,110 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 19:09:00,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:00,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562256330] [2022-04-18 19:09:00,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562256330] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:00,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:00,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:00,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89577064] [2022-04-18 19:09:00,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:00,111 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:00,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:00,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:00,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:00,111 INFO L87 Difference]: Start difference. First operand 34213 states and 75715 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 19:09:02,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:02,749 INFO L93 Difference]: Finished difference Result 39125 states and 85288 transitions. [2022-04-18 19:09:02,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:09:02,749 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 19:09:02,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:02,822 INFO L225 Difference]: With dead ends: 39125 [2022-04-18 19:09:02,822 INFO L226 Difference]: Without dead ends: 39125 [2022-04-18 19:09:02,822 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:09:02,822 INFO L913 BasicCegarLoop]: 293 mSDtfsCounter, 711 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 3324 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 3399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 3324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:02,822 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 1645 Invalid, 3399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 3324 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:09:02,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39125 states. [2022-04-18 19:09:03,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39125 to 34213. [2022-04-18 19:09:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34213 states, 34170 states have (on average 2.2158326016973953) internal successors, (75715), 34212 states have internal predecessors, (75715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34213 states to 34213 states and 75715 transitions. [2022-04-18 19:09:03,427 INFO L78 Accepts]: Start accepts. Automaton has 34213 states and 75715 transitions. Word has length 32 [2022-04-18 19:09:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:03,428 INFO L478 AbstractCegarLoop]: Abstraction has 34213 states and 75715 transitions. [2022-04-18 19:09:03,428 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 19:09:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 34213 states and 75715 transitions. [2022-04-18 19:09:03,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:09:03,434 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:03,434 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, 1] [2022-04-18 19:09:03,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-04-18 19:09:03,434 INFO L403 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:03,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:03,435 INFO L85 PathProgramCache]: Analyzing trace with hash 549239535, now seen corresponding path program 70 times [2022-04-18 19:09:03,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:03,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978032613] [2022-04-18 19:09:03,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:03,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:03,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:03,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:03,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978032613] [2022-04-18 19:09:03,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978032613] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:03,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:03,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:03,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831445011] [2022-04-18 19:09:03,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:03,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:03,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:03,971 INFO L87 Difference]: Start difference. First operand 34213 states and 75715 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 19:09:08,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:08,168 INFO L93 Difference]: Finished difference Result 39027 states and 85092 transitions. [2022-04-18 19:09:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-18 19:09:08,169 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 19:09:08,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:08,244 INFO L225 Difference]: With dead ends: 39027 [2022-04-18 19:09:08,244 INFO L226 Difference]: Without dead ends: 39027 [2022-04-18 19:09:08,245 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2022-04-18 19:09:08,245 INFO L913 BasicCegarLoop]: 296 mSDtfsCounter, 966 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 6253 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 6327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 6253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:08,245 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [966 Valid, 1568 Invalid, 6327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 6253 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-18 19:09:08,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39027 states. [2022-04-18 19:09:08,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39027 to 33990. [2022-04-18 19:09:08,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33990 states, 33947 states have (on average 2.2162488585147435) internal successors, (75235), 33989 states have internal predecessors, (75235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33990 states to 33990 states and 75235 transitions. [2022-04-18 19:09:08,931 INFO L78 Accepts]: Start accepts. Automaton has 33990 states and 75235 transitions. Word has length 32 [2022-04-18 19:09:08,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:08,931 INFO L478 AbstractCegarLoop]: Abstraction has 33990 states and 75235 transitions. [2022-04-18 19:09:08,931 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 19:09:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 33990 states and 75235 transitions. [2022-04-18 19:09:08,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:09:08,936 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:08,937 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 19:09:08,937 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-04-18 19:09:08,937 INFO L403 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:08,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:08,937 INFO L85 PathProgramCache]: Analyzing trace with hash 549016335, now seen corresponding path program 71 times [2022-04-18 19:09:08,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:08,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959460816] [2022-04-18 19:09:08,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:08,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:09,487 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 19:09:09,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:09,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959460816] [2022-04-18 19:09:09,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959460816] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:09,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:09,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:09,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901226968] [2022-04-18 19:09:09,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:09,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:09,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:09,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:09,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:09,488 INFO L87 Difference]: Start difference. First operand 33990 states and 75235 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 19:09:12,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:12,398 INFO L93 Difference]: Finished difference Result 38846 states and 84696 transitions. [2022-04-18 19:09:12,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:09:12,398 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 19:09:12,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:12,470 INFO L225 Difference]: With dead ends: 38846 [2022-04-18 19:09:12,470 INFO L226 Difference]: Without dead ends: 38846 [2022-04-18 19:09:12,470 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:09:12,471 INFO L913 BasicCegarLoop]: 294 mSDtfsCounter, 769 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 4052 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 4129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:12,471 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [769 Valid, 1659 Invalid, 4129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 4052 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:09:12,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38846 states. [2022-04-18 19:09:13,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38846 to 33990. [2022-04-18 19:09:13,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33990 states, 33947 states have (on average 2.2162488585147435) internal successors, (75235), 33989 states have internal predecessors, (75235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33990 states to 33990 states and 75235 transitions. [2022-04-18 19:09:13,169 INFO L78 Accepts]: Start accepts. Automaton has 33990 states and 75235 transitions. Word has length 32 [2022-04-18 19:09:13,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:13,170 INFO L478 AbstractCegarLoop]: Abstraction has 33990 states and 75235 transitions. [2022-04-18 19:09:13,170 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 19:09:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand 33990 states and 75235 transitions. [2022-04-18 19:09:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:09:13,176 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:13,176 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 19:09:13,176 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-04-18 19:09:13,176 INFO L403 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash 225486075, now seen corresponding path program 72 times [2022-04-18 19:09:13,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:13,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353680288] [2022-04-18 19:09:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:13,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:13,668 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 19:09:13,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:13,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353680288] [2022-04-18 19:09:13,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353680288] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:13,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:13,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:13,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862657650] [2022-04-18 19:09:13,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:13,669 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:13,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:13,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:13,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:13,670 INFO L87 Difference]: Start difference. First operand 33990 states and 75235 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 19:09:17,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:17,743 INFO L93 Difference]: Finished difference Result 44988 states and 98611 transitions. [2022-04-18 19:09:17,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:09:17,743 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 19:09:17,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:17,834 INFO L225 Difference]: With dead ends: 44988 [2022-04-18 19:09:17,834 INFO L226 Difference]: Without dead ends: 44988 [2022-04-18 19:09:17,835 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=246, Invalid=746, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:09:17,835 INFO L913 BasicCegarLoop]: 282 mSDtfsCounter, 1093 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 5955 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 6033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 5955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:17,835 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 1606 Invalid, 6033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 5955 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-18 19:09:17,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44988 states. [2022-04-18 19:09:18,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44988 to 33804. [2022-04-18 19:09:18,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33804 states, 33761 states have (on average 2.217321761796155) internal successors, (74859), 33803 states have internal predecessors, (74859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:18,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33804 states to 33804 states and 74859 transitions. [2022-04-18 19:09:18,511 INFO L78 Accepts]: Start accepts. Automaton has 33804 states and 74859 transitions. Word has length 32 [2022-04-18 19:09:18,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:18,511 INFO L478 AbstractCegarLoop]: Abstraction has 33804 states and 74859 transitions. [2022-04-18 19:09:18,511 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 19:09:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 33804 states and 74859 transitions. [2022-04-18 19:09:18,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:09:18,516 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:18,517 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 19:09:18,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-04-18 19:09:18,517 INFO L403 AbstractCegarLoop]: === Iteration 107 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:18,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:18,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1631649859, now seen corresponding path program 26 times [2022-04-18 19:09:18,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:18,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037087232] [2022-04-18 19:09:18,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:18,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:19,077 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 19:09:19,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:19,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037087232] [2022-04-18 19:09:19,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037087232] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:19,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:19,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:19,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295345184] [2022-04-18 19:09:19,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:19,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:19,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:19,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:19,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:19,078 INFO L87 Difference]: Start difference. First operand 33804 states and 74859 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 19:09:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:22,338 INFO L93 Difference]: Finished difference Result 45263 states and 99413 transitions. [2022-04-18 19:09:22,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-18 19:09:22,338 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 19:09:22,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:22,440 INFO L225 Difference]: With dead ends: 45263 [2022-04-18 19:09:22,440 INFO L226 Difference]: Without dead ends: 45259 [2022-04-18 19:09:22,441 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=378, Invalid=882, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:09:22,441 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 677 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 3669 mSolverCounterSat, 587 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 4256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 587 IncrementalHoareTripleChecker+Valid, 3669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:22,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [677 Valid, 704 Invalid, 4256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [587 Valid, 3669 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:09:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45259 states. [2022-04-18 19:09:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45259 to 37406. [2022-04-18 19:09:23,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37406 states, 37363 states have (on average 2.227363969702647) internal successors, (83221), 37405 states have internal predecessors, (83221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37406 states to 37406 states and 83221 transitions. [2022-04-18 19:09:23,268 INFO L78 Accepts]: Start accepts. Automaton has 37406 states and 83221 transitions. Word has length 32 [2022-04-18 19:09:23,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:23,269 INFO L478 AbstractCegarLoop]: Abstraction has 37406 states and 83221 transitions. [2022-04-18 19:09:23,269 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 19:09:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 37406 states and 83221 transitions. [2022-04-18 19:09:23,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-04-18 19:09:23,275 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:23,275 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 19:09:23,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-04-18 19:09:23,275 INFO L403 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:23,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:23,276 INFO L85 PathProgramCache]: Analyzing trace with hash -566787853, now seen corresponding path program 73 times [2022-04-18 19:09:23,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:23,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393609850] [2022-04-18 19:09:23,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:23,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:23,868 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 19:09:23,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:23,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393609850] [2022-04-18 19:09:23,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393609850] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:23,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:23,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:23,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548987687] [2022-04-18 19:09:23,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:23,869 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:23,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:23,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:23,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:23,869 INFO L87 Difference]: Start difference. First operand 37406 states and 83221 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 19:09:27,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:27,490 INFO L93 Difference]: Finished difference Result 42505 states and 93666 transitions. [2022-04-18 19:09:27,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:09:27,491 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 19:09:27,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:27,574 INFO L225 Difference]: With dead ends: 42505 [2022-04-18 19:09:27,574 INFO L226 Difference]: Without dead ends: 42505 [2022-04-18 19:09:27,574 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:09:27,575 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 871 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 5184 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 5306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 5184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:27,575 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [871 Valid, 1064 Invalid, 5306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 5184 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:09:27,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42505 states. [2022-04-18 19:09:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42505 to 34456. [2022-04-18 19:09:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34456 states, 34413 states have (on average 2.2200331270159532) internal successors, (76398), 34455 states have internal predecessors, (76398), 0 states have call successors, (0), 0 states have call 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 L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34456 states to 34456 states and 76398 transitions. [2022-04-18 19:09:28,191 INFO L78 Accepts]: Start accepts. Automaton has 34456 states and 76398 transitions. Word has length 32 [2022-04-18 19:09:28,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:28,191 INFO L478 AbstractCegarLoop]: Abstraction has 34456 states and 76398 transitions. [2022-04-18 19:09:28,191 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 19:09:28,191 INFO L276 IsEmpty]: Start isEmpty. Operand 34456 states and 76398 transitions. [2022-04-18 19:09:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:09:28,197 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:28,197 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, 1] [2022-04-18 19:09:28,197 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-04-18 19:09:28,198 INFO L403 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:28,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:28,198 INFO L85 PathProgramCache]: Analyzing trace with hash -176137218, now seen corresponding path program 1 times [2022-04-18 19:09:28,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:28,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130702526] [2022-04-18 19:09:28,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:28,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:28,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:09:28,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:28,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130702526] [2022-04-18 19:09:28,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130702526] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:28,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:28,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:28,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466054766] [2022-04-18 19:09:28,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:28,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:28,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:28,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:28,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:28,872 INFO L87 Difference]: Start difference. First operand 34456 states and 76398 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:31,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:31,816 INFO L93 Difference]: Finished difference Result 43478 states and 95324 transitions. [2022-04-18 19:09:31,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:09:31,817 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:09:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:31,910 INFO L225 Difference]: With dead ends: 43478 [2022-04-18 19:09:31,910 INFO L226 Difference]: Without dead ends: 43478 [2022-04-18 19:09:31,911 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:09:31,911 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 743 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 4066 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 4177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 4066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:31,911 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [743 Valid, 1244 Invalid, 4177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 4066 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:09:31,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43478 states. [2022-04-18 19:09:32,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43478 to 34762. [2022-04-18 19:09:32,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34762 states, 34719 states have (on average 2.218093839108269) internal successors, (77010), 34761 states have internal predecessors, (77010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34762 states to 34762 states and 77010 transitions. [2022-04-18 19:09:32,550 INFO L78 Accepts]: Start accepts. Automaton has 34762 states and 77010 transitions. Word has length 33 [2022-04-18 19:09:32,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:32,550 INFO L478 AbstractCegarLoop]: Abstraction has 34762 states and 77010 transitions. [2022-04-18 19:09:32,550 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:32,550 INFO L276 IsEmpty]: Start isEmpty. Operand 34762 states and 77010 transitions. [2022-04-18 19:09:32,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:09:32,556 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:32,556 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:09:32,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-04-18 19:09:32,556 INFO L403 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:32,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:32,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1682742956, now seen corresponding path program 2 times [2022-04-18 19:09:32,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:32,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521044810] [2022-04-18 19:09:32,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:32,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:33,242 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 19:09:33,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:33,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521044810] [2022-04-18 19:09:33,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521044810] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:33,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:33,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:33,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469074519] [2022-04-18 19:09:33,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:33,243 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:33,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:33,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:33,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:33,244 INFO L87 Difference]: Start difference. First operand 34762 states and 77010 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:36,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:36,379 INFO L93 Difference]: Finished difference Result 42881 states and 93975 transitions. [2022-04-18 19:09:36,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:09:36,379 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:09:36,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:36,478 INFO L225 Difference]: With dead ends: 42881 [2022-04-18 19:09:36,478 INFO L226 Difference]: Without dead ends: 42881 [2022-04-18 19:09:36,478 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:09:36,478 INFO L913 BasicCegarLoop]: 276 mSDtfsCounter, 875 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 4402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 4402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:36,478 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 1192 Invalid, 4525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 4402 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:09:36,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42881 states. [2022-04-18 19:09:37,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42881 to 34728. [2022-04-18 19:09:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34728 states, 34685 states have (on average 2.2180193167075104) internal successors, (76932), 34727 states have internal predecessors, (76932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:37,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34728 states to 34728 states and 76932 transitions. [2022-04-18 19:09:37,190 INFO L78 Accepts]: Start accepts. Automaton has 34728 states and 76932 transitions. Word has length 33 [2022-04-18 19:09:37,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:37,190 INFO L478 AbstractCegarLoop]: Abstraction has 34728 states and 76932 transitions. [2022-04-18 19:09:37,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:37,190 INFO L276 IsEmpty]: Start isEmpty. Operand 34728 states and 76932 transitions. [2022-04-18 19:09:37,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:09:37,196 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:37,196 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, 1] [2022-04-18 19:09:37,197 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-04-18 19:09:37,197 INFO L403 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:37,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:37,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1632610716, now seen corresponding path program 3 times [2022-04-18 19:09:37,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:37,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107078709] [2022-04-18 19:09:37,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:37,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:37,879 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 19:09:37,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:37,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107078709] [2022-04-18 19:09:37,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107078709] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:37,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:37,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:37,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979856962] [2022-04-18 19:09:37,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:37,880 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:37,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:37,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:37,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:37,880 INFO L87 Difference]: Start difference. First operand 34728 states and 76932 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:41,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:41,021 INFO L93 Difference]: Finished difference Result 42448 states and 92556 transitions. [2022-04-18 19:09:41,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:09:41,022 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:09:41,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:41,116 INFO L225 Difference]: With dead ends: 42448 [2022-04-18 19:09:41,116 INFO L226 Difference]: Without dead ends: 42448 [2022-04-18 19:09:41,116 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=240, Invalid=752, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:09:41,117 INFO L913 BasicCegarLoop]: 299 mSDtfsCounter, 1081 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 4040 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 4211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 4040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:41,117 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1081 Valid, 1427 Invalid, 4211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 4040 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:09:41,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42448 states. [2022-04-18 19:09:41,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42448 to 34260. [2022-04-18 19:09:41,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34260 states, 34217 states have (on average 2.2194230937837918) internal successors, (75942), 34259 states have internal predecessors, (75942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34260 states to 34260 states and 75942 transitions. [2022-04-18 19:09:41,952 INFO L78 Accepts]: Start accepts. Automaton has 34260 states and 75942 transitions. Word has length 33 [2022-04-18 19:09:41,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:41,953 INFO L478 AbstractCegarLoop]: Abstraction has 34260 states and 75942 transitions. [2022-04-18 19:09:41,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 34260 states and 75942 transitions. [2022-04-18 19:09:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:09:41,959 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:41,959 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, 1, 1] [2022-04-18 19:09:41,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-04-18 19:09:41,960 INFO L403 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:41,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:41,960 INFO L85 PathProgramCache]: Analyzing trace with hash -473110358, now seen corresponding path program 4 times [2022-04-18 19:09:41,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:41,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622898985] [2022-04-18 19:09:41,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:41,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:42,785 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 19:09:42,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:42,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622898985] [2022-04-18 19:09:42,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622898985] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:42,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:42,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:42,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938108428] [2022-04-18 19:09:42,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:42,786 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:42,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:42,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:42,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:42,786 INFO L87 Difference]: Start difference. First operand 34260 states and 75942 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:45,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:45,642 INFO L93 Difference]: Finished difference Result 39692 states and 86600 transitions. [2022-04-18 19:09:45,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:09:45,643 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:09:45,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:45,719 INFO L225 Difference]: With dead ends: 39692 [2022-04-18 19:09:45,719 INFO L226 Difference]: Without dead ends: 39692 [2022-04-18 19:09:45,719 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=224, Invalid=706, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:09:45,719 INFO L913 BasicCegarLoop]: 272 mSDtfsCounter, 747 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 3774 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 3774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:45,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 1493 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 3774 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:09:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39692 states. [2022-04-18 19:09:46,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39692 to 34261. [2022-04-18 19:09:46,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34261 states, 34218 states have (on average 2.2194751300485125) internal successors, (75946), 34260 states have internal predecessors, (75946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:46,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34261 states to 34261 states and 75946 transitions. [2022-04-18 19:09:46,280 INFO L78 Accepts]: Start accepts. Automaton has 34261 states and 75946 transitions. Word has length 33 [2022-04-18 19:09:46,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:46,280 INFO L478 AbstractCegarLoop]: Abstraction has 34261 states and 75946 transitions. [2022-04-18 19:09:46,280 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:46,281 INFO L276 IsEmpty]: Start isEmpty. Operand 34261 states and 75946 transitions. [2022-04-18 19:09:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:09:46,287 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:46,287 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, 1] [2022-04-18 19:09:46,287 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-04-18 19:09:46,287 INFO L403 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:46,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:46,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1299346134, now seen corresponding path program 5 times [2022-04-18 19:09:46,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:46,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780303329] [2022-04-18 19:09:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:46,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:46,962 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 19:09:46,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:46,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780303329] [2022-04-18 19:09:46,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780303329] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:46,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:46,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:46,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680203854] [2022-04-18 19:09:46,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:46,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:46,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:46,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:46,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:46,964 INFO L87 Difference]: Start difference. First operand 34261 states and 75946 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:50,174 INFO L93 Difference]: Finished difference Result 39502 states and 86220 transitions. [2022-04-18 19:09:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:09:50,175 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:09:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:50,251 INFO L225 Difference]: With dead ends: 39502 [2022-04-18 19:09:50,252 INFO L226 Difference]: Without dead ends: 39502 [2022-04-18 19:09:50,252 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=211, Invalid=659, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:09:50,252 INFO L913 BasicCegarLoop]: 273 mSDtfsCounter, 793 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 4756 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 4872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 4756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:50,252 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 1404 Invalid, 4872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 4756 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:09:50,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39502 states. [2022-04-18 19:09:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39502 to 34262. [2022-04-18 19:09:50,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34262 states, 34219 states have (on average 2.2195271632718665) internal successors, (75950), 34261 states have internal predecessors, (75950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34262 states to 34262 states and 75950 transitions. [2022-04-18 19:09:50,983 INFO L78 Accepts]: Start accepts. Automaton has 34262 states and 75950 transitions. Word has length 33 [2022-04-18 19:09:50,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:50,983 INFO L478 AbstractCegarLoop]: Abstraction has 34262 states and 75950 transitions. [2022-04-18 19:09:50,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:50,983 INFO L276 IsEmpty]: Start isEmpty. Operand 34262 states and 75950 transitions. [2022-04-18 19:09:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:09:50,990 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:50,990 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, 1] [2022-04-18 19:09:50,990 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-04-18 19:09:50,990 INFO L403 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:50,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:50,991 INFO L85 PathProgramCache]: Analyzing trace with hash -140157334, now seen corresponding path program 6 times [2022-04-18 19:09:50,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:50,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812219783] [2022-04-18 19:09:50,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:50,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:51,566 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 19:09:51,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:51,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812219783] [2022-04-18 19:09:51,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812219783] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:51,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:51,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:09:51,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066728472] [2022-04-18 19:09:51,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:51,567 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:09:51,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:51,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:09:51,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:09:51,568 INFO L87 Difference]: Start difference. First operand 34262 states and 75950 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:54,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:54,678 INFO L93 Difference]: Finished difference Result 39197 states and 85610 transitions. [2022-04-18 19:09:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:09:54,679 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:09:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:54,750 INFO L225 Difference]: With dead ends: 39197 [2022-04-18 19:09:54,750 INFO L226 Difference]: Without dead ends: 39197 [2022-04-18 19:09:54,750 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=231, Invalid=699, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:09:54,750 INFO L913 BasicCegarLoop]: 276 mSDtfsCounter, 972 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 4191 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 4333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 4191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:54,750 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 1285 Invalid, 4333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 4191 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:09:54,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39197 states. [2022-04-18 19:09:55,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39197 to 33969. [2022-04-18 19:09:55,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33969 states, 33926 states have (on average 2.2202735365206627) internal successors, (75325), 33968 states have internal predecessors, (75325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33969 states to 33969 states and 75325 transitions. [2022-04-18 19:09:55,506 INFO L78 Accepts]: Start accepts. Automaton has 33969 states and 75325 transitions. Word has length 33 [2022-04-18 19:09:55,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:55,506 INFO L478 AbstractCegarLoop]: Abstraction has 33969 states and 75325 transitions. [2022-04-18 19:09:55,506 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:55,506 INFO L276 IsEmpty]: Start isEmpty. Operand 33969 states and 75325 transitions. [2022-04-18 19:09:55,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:09:55,512 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:55,512 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, 1] [2022-04-18 19:09:55,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-04-18 19:09:55,512 INFO L403 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:55,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:55,513 INFO L85 PathProgramCache]: Analyzing trace with hash 960636446, now seen corresponding path program 7 times [2022-04-18 19:09:55,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:55,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76236724] [2022-04-18 19:09:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:55,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:56,022 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 19:09:56,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:56,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76236724] [2022-04-18 19:09:56,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76236724] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:56,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:56,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:09:56,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628998960] [2022-04-18 19:09:56,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:56,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:09:56,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:56,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:09:56,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:09:56,023 INFO L87 Difference]: Start difference. First operand 33969 states and 75325 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:09:58,296 INFO L93 Difference]: Finished difference Result 39537 states and 87211 transitions. [2022-04-18 19:09:58,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:09:58,297 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:09:58,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:09:58,373 INFO L225 Difference]: With dead ends: 39537 [2022-04-18 19:09:58,373 INFO L226 Difference]: Without dead ends: 39537 [2022-04-18 19:09:58,373 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2022-04-18 19:09:58,373 INFO L913 BasicCegarLoop]: 259 mSDtfsCounter, 589 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 3876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:09:58,373 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 1146 Invalid, 3876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3806 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:09:58,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39537 states. [2022-04-18 19:09:58,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39537 to 34419. [2022-04-18 19:09:58,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34419 states, 34376 states have (on average 2.2205317663486155) internal successors, (76333), 34418 states have internal predecessors, (76333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:58,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34419 states to 34419 states and 76333 transitions. [2022-04-18 19:09:58,976 INFO L78 Accepts]: Start accepts. Automaton has 34419 states and 76333 transitions. Word has length 33 [2022-04-18 19:09:58,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:09:58,977 INFO L478 AbstractCegarLoop]: Abstraction has 34419 states and 76333 transitions. [2022-04-18 19:09:58,977 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:09:58,977 INFO L276 IsEmpty]: Start isEmpty. Operand 34419 states and 76333 transitions. [2022-04-18 19:09:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:09:58,983 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:09:58,983 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, 1] [2022-04-18 19:09:58,983 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-04-18 19:09:58,983 INFO L403 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:09:58,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:09:58,984 INFO L85 PathProgramCache]: Analyzing trace with hash -495837052, now seen corresponding path program 8 times [2022-04-18 19:09:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:09:58,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377186068] [2022-04-18 19:09:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:09:58,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:09:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:09:59,365 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 19:09:59,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:09:59,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377186068] [2022-04-18 19:09:59,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377186068] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:09:59,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:09:59,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:09:59,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884695806] [2022-04-18 19:09:59,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:09:59,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:09:59,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:09:59,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:09:59,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:09:59,366 INFO L87 Difference]: Start difference. First operand 34419 states and 76333 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:02,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:02,021 INFO L93 Difference]: Finished difference Result 41650 states and 91775 transitions. [2022-04-18 19:10:02,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:10:02,021 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:02,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:02,174 INFO L225 Difference]: With dead ends: 41650 [2022-04-18 19:10:02,174 INFO L226 Difference]: Without dead ends: 41650 [2022-04-18 19:10:02,174 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:10:02,174 INFO L913 BasicCegarLoop]: 287 mSDtfsCounter, 652 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 3905 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 3984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:02,174 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [652 Valid, 1504 Invalid, 3984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3905 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:10:02,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41650 states. [2022-04-18 19:10:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41650 to 35047. [2022-04-18 19:10:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35047 states, 35004 states have (on average 2.2188892697977374) internal successors, (77670), 35046 states have internal predecessors, (77670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:02,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35047 states to 35047 states and 77670 transitions. [2022-04-18 19:10:02,787 INFO L78 Accepts]: Start accepts. Automaton has 35047 states and 77670 transitions. Word has length 33 [2022-04-18 19:10:02,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:02,788 INFO L478 AbstractCegarLoop]: Abstraction has 35047 states and 77670 transitions. [2022-04-18 19:10:02,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:02,788 INFO L276 IsEmpty]: Start isEmpty. Operand 35047 states and 77670 transitions. [2022-04-18 19:10:02,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:02,793 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:02,793 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, 1] [2022-04-18 19:10:02,794 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-04-18 19:10:02,794 INFO L403 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:02,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:02,794 INFO L85 PathProgramCache]: Analyzing trace with hash 663663306, now seen corresponding path program 9 times [2022-04-18 19:10:02,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:02,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943755983] [2022-04-18 19:10:02,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:02,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:03,470 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 19:10:03,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:03,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943755983] [2022-04-18 19:10:03,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943755983] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:03,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:03,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:03,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334735158] [2022-04-18 19:10:03,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:03,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:03,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:03,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:03,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:03,471 INFO L87 Difference]: Start difference. First operand 35047 states and 77670 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:06,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:06,255 INFO L93 Difference]: Finished difference Result 43252 states and 94159 transitions. [2022-04-18 19:10:06,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:10:06,255 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:06,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:06,338 INFO L225 Difference]: With dead ends: 43252 [2022-04-18 19:10:06,338 INFO L226 Difference]: Without dead ends: 43252 [2022-04-18 19:10:06,338 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:10:06,338 INFO L913 BasicCegarLoop]: 313 mSDtfsCounter, 756 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 3681 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1712 SdHoareTripleChecker+Invalid, 3818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 3681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:06,338 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [756 Valid, 1712 Invalid, 3818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 3681 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:10:06,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43252 states. [2022-04-18 19:10:06,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43252 to 35458. [2022-04-18 19:10:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35458 states, 35415 states have (on average 2.2184385147536356) internal successors, (78566), 35457 states have internal predecessors, (78566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:07,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35458 states to 35458 states and 78566 transitions. [2022-04-18 19:10:07,059 INFO L78 Accepts]: Start accepts. Automaton has 35458 states and 78566 transitions. Word has length 33 [2022-04-18 19:10:07,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:07,059 INFO L478 AbstractCegarLoop]: Abstraction has 35458 states and 78566 transitions. [2022-04-18 19:10:07,059 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 35458 states and 78566 transitions. [2022-04-18 19:10:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:07,067 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:07,068 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, 1] [2022-04-18 19:10:07,068 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-04-18 19:10:07,068 INFO L403 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:07,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:07,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1858847498, now seen corresponding path program 10 times [2022-04-18 19:10:07,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:07,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252887885] [2022-04-18 19:10:07,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:07,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:07,566 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 19:10:07,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:07,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252887885] [2022-04-18 19:10:07,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252887885] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:07,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:07,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:07,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950252050] [2022-04-18 19:10:07,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:07,567 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:07,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:07,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:07,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:07,571 INFO L87 Difference]: Start difference. First operand 35458 states and 78566 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:11,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:11,066 INFO L93 Difference]: Finished difference Result 43012 states and 93676 transitions. [2022-04-18 19:10:11,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:10:11,066 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:11,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:11,152 INFO L225 Difference]: With dead ends: 43012 [2022-04-18 19:10:11,153 INFO L226 Difference]: Without dead ends: 43012 [2022-04-18 19:10:11,153 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:10:11,153 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 902 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 4870 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 5004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 4870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:11,153 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [902 Valid, 1611 Invalid, 5004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 4870 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:10:11,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43012 states. [2022-04-18 19:10:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43012 to 35148. [2022-04-18 19:10:11,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35148 states, 35105 states have (on average 2.218800740635237) internal successors, (77891), 35147 states have internal predecessors, (77891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:11,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35148 states to 35148 states and 77891 transitions. [2022-04-18 19:10:11,841 INFO L78 Accepts]: Start accepts. Automaton has 35148 states and 77891 transitions. Word has length 33 [2022-04-18 19:10:11,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:11,842 INFO L478 AbstractCegarLoop]: Abstraction has 35148 states and 77891 transitions. [2022-04-18 19:10:11,842 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:11,842 INFO L276 IsEmpty]: Start isEmpty. Operand 35148 states and 77891 transitions. [2022-04-18 19:10:11,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:11,848 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:11,848 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, 1] [2022-04-18 19:10:11,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-04-18 19:10:11,848 INFO L403 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:11,848 INFO L85 PathProgramCache]: Analyzing trace with hash 996616330, now seen corresponding path program 11 times [2022-04-18 19:10:11,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:11,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38496695] [2022-04-18 19:10:11,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:11,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:12,485 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 19:10:12,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:12,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38496695] [2022-04-18 19:10:12,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38496695] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:12,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:12,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:12,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364506701] [2022-04-18 19:10:12,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:12,486 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:12,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:12,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:12,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:12,486 INFO L87 Difference]: Start difference. First operand 35148 states and 77891 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:16,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:16,275 INFO L93 Difference]: Finished difference Result 42302 states and 92182 transitions. [2022-04-18 19:10:16,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:10:16,276 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:16,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:16,355 INFO L225 Difference]: With dead ends: 42302 [2022-04-18 19:10:16,355 INFO L226 Difference]: Without dead ends: 42302 [2022-04-18 19:10:16,355 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:10:16,356 INFO L913 BasicCegarLoop]: 317 mSDtfsCounter, 874 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 5205 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 5322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 5205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:16,356 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [874 Valid, 1744 Invalid, 5322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 5205 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-18 19:10:16,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42302 states. [2022-04-18 19:10:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42302 to 34825. [2022-04-18 19:10:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34825 states, 34782 states have (on average 2.218216318785579) internal successors, (77154), 34824 states have internal predecessors, (77154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:16,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34825 states to 34825 states and 77154 transitions. [2022-04-18 19:10:16,989 INFO L78 Accepts]: Start accepts. Automaton has 34825 states and 77154 transitions. Word has length 33 [2022-04-18 19:10:16,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:16,990 INFO L478 AbstractCegarLoop]: Abstraction has 34825 states and 77154 transitions. [2022-04-18 19:10:16,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:16,990 INFO L276 IsEmpty]: Start isEmpty. Operand 34825 states and 77154 transitions. [2022-04-18 19:10:16,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:16,996 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:16,996 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, 1] [2022-04-18 19:10:16,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-04-18 19:10:16,996 INFO L403 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:16,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2006527138, now seen corresponding path program 12 times [2022-04-18 19:10:16,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:16,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075103776] [2022-04-18 19:10:16,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:16,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:17,720 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 19:10:17,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:17,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075103776] [2022-04-18 19:10:17,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075103776] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:17,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:17,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:17,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551357972] [2022-04-18 19:10:17,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:17,721 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:17,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:17,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:17,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:17,721 INFO L87 Difference]: Start difference. First operand 34825 states and 77154 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:20,705 INFO L93 Difference]: Finished difference Result 41732 states and 91418 transitions. [2022-04-18 19:10:20,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:10:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:20,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:20,787 INFO L225 Difference]: With dead ends: 41732 [2022-04-18 19:10:20,788 INFO L226 Difference]: Without dead ends: 41732 [2022-04-18 19:10:20,788 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:10:20,788 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 804 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 4295 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 4400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 4295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:20,788 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 1223 Invalid, 4400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 4295 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:10:20,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41732 states. [2022-04-18 19:10:21,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41732 to 34998. [2022-04-18 19:10:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34998 states, 34955 states have (on average 2.218166213703333) internal successors, (77536), 34997 states have internal predecessors, (77536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:21,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34998 states to 34998 states and 77536 transitions. [2022-04-18 19:10:21,417 INFO L78 Accepts]: Start accepts. Automaton has 34998 states and 77536 transitions. Word has length 33 [2022-04-18 19:10:21,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:21,417 INFO L478 AbstractCegarLoop]: Abstraction has 34998 states and 77536 transitions. [2022-04-18 19:10:21,417 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:21,418 INFO L276 IsEmpty]: Start isEmpty. Operand 34998 states and 77536 transitions. [2022-04-18 19:10:21,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:21,424 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:21,424 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, 1] [2022-04-18 19:10:21,424 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-04-18 19:10:21,424 INFO L403 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:21,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:21,424 INFO L85 PathProgramCache]: Analyzing trace with hash 781834420, now seen corresponding path program 13 times [2022-04-18 19:10:21,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:21,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320721156] [2022-04-18 19:10:21,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:21,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:22,179 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 19:10:22,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:22,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320721156] [2022-04-18 19:10:22,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320721156] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:22,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:22,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:22,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459740922] [2022-04-18 19:10:22,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:22,179 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:22,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:22,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:22,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:22,180 INFO L87 Difference]: Start difference. First operand 34998 states and 77536 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:25,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:25,362 INFO L93 Difference]: Finished difference Result 42453 states and 92975 transitions. [2022-04-18 19:10:25,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:10:25,363 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:25,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:25,447 INFO L225 Difference]: With dead ends: 42453 [2022-04-18 19:10:25,447 INFO L226 Difference]: Without dead ends: 42453 [2022-04-18 19:10:25,447 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:10:25,448 INFO L913 BasicCegarLoop]: 288 mSDtfsCounter, 695 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 4418 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 4511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 4418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:25,448 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [695 Valid, 1512 Invalid, 4511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 4418 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:10:25,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42453 states. [2022-04-18 19:10:25,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42453 to 35022. [2022-04-18 19:10:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35022 states, 34979 states have (on average 2.2182452328539983) internal successors, (77592), 35021 states have internal predecessors, (77592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:26,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35022 states to 35022 states and 77592 transitions. [2022-04-18 19:10:26,229 INFO L78 Accepts]: Start accepts. Automaton has 35022 states and 77592 transitions. Word has length 33 [2022-04-18 19:10:26,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:26,229 INFO L478 AbstractCegarLoop]: Abstraction has 35022 states and 77592 transitions. [2022-04-18 19:10:26,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 35022 states and 77592 transitions. [2022-04-18 19:10:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:26,236 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:26,236 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, 1] [2022-04-18 19:10:26,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-04-18 19:10:26,236 INFO L403 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:26,236 INFO L85 PathProgramCache]: Analyzing trace with hash 831966660, now seen corresponding path program 14 times [2022-04-18 19:10:26,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:26,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351567390] [2022-04-18 19:10:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:26,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:26,961 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 19:10:26,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:26,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351567390] [2022-04-18 19:10:26,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351567390] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:26,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:26,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:26,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449117944] [2022-04-18 19:10:26,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:26,962 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:26,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:26,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:26,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:26,962 INFO L87 Difference]: Start difference. First operand 35022 states and 77592 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:30,582 INFO L93 Difference]: Finished difference Result 43765 states and 95548 transitions. [2022-04-18 19:10:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:10:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:30,662 INFO L225 Difference]: With dead ends: 43765 [2022-04-18 19:10:30,662 INFO L226 Difference]: Without dead ends: 43765 [2022-04-18 19:10:30,662 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=765, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:10:30,663 INFO L913 BasicCegarLoop]: 316 mSDtfsCounter, 910 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 4841 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 5008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 4841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:30,663 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [910 Valid, 1854 Invalid, 5008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 4841 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:10:30,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43765 states. [2022-04-18 19:10:31,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43765 to 35488. [2022-04-18 19:10:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35488 states, 35445 states have (on average 2.2178304415291294) internal successors, (78611), 35487 states have internal predecessors, (78611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:31,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35488 states to 35488 states and 78611 transitions. [2022-04-18 19:10:31,376 INFO L78 Accepts]: Start accepts. Automaton has 35488 states and 78611 transitions. Word has length 33 [2022-04-18 19:10:31,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:31,376 INFO L478 AbstractCegarLoop]: Abstraction has 35488 states and 78611 transitions. [2022-04-18 19:10:31,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:31,377 INFO L276 IsEmpty]: Start isEmpty. Operand 35488 states and 78611 transitions. [2022-04-18 19:10:31,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:31,383 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:31,384 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, 1] [2022-04-18 19:10:31,384 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-04-18 19:10:31,384 INFO L403 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:31,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:31,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1991467018, now seen corresponding path program 15 times [2022-04-18 19:10:31,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:31,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930720604] [2022-04-18 19:10:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:31,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:32,354 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 19:10:32,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:32,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930720604] [2022-04-18 19:10:32,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930720604] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:32,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:32,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:32,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994159841] [2022-04-18 19:10:32,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:32,354 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:32,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:32,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:32,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:32,355 INFO L87 Difference]: Start difference. First operand 35488 states and 78611 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:35,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:35,495 INFO L93 Difference]: Finished difference Result 43195 states and 94434 transitions. [2022-04-18 19:10:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:10:35,495 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:35,585 INFO L225 Difference]: With dead ends: 43195 [2022-04-18 19:10:35,585 INFO L226 Difference]: Without dead ends: 43195 [2022-04-18 19:10:35,586 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:10:35,586 INFO L913 BasicCegarLoop]: 289 mSDtfsCounter, 786 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 4366 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 4516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 4366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:35,586 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [786 Valid, 1547 Invalid, 4516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 4366 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:10:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43195 states. [2022-04-18 19:10:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43195 to 35494. [2022-04-18 19:10:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35494 states, 35451 states have (on average 2.2179346139742178) internal successors, (78628), 35493 states have internal predecessors, (78628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:36,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35494 states to 35494 states and 78628 transitions. [2022-04-18 19:10:36,391 INFO L78 Accepts]: Start accepts. Automaton has 35494 states and 78628 transitions. Word has length 33 [2022-04-18 19:10:36,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:36,391 INFO L478 AbstractCegarLoop]: Abstraction has 35494 states and 78628 transitions. [2022-04-18 19:10:36,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:36,391 INFO L276 IsEmpty]: Start isEmpty. Operand 35494 states and 78628 transitions. [2022-04-18 19:10:36,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:36,398 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:36,398 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, 1] [2022-04-18 19:10:36,398 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-04-18 19:10:36,398 INFO L403 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:36,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:36,398 INFO L85 PathProgramCache]: Analyzing trace with hash -531043786, now seen corresponding path program 16 times [2022-04-18 19:10:36,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:36,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209432964] [2022-04-18 19:10:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:37,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:37,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:37,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209432964] [2022-04-18 19:10:37,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209432964] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:37,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:37,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:37,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381558778] [2022-04-18 19:10:37,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:37,169 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:37,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:37,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:37,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:37,170 INFO L87 Difference]: Start difference. First operand 35494 states and 78628 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:40,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:40,579 INFO L93 Difference]: Finished difference Result 43083 states and 94210 transitions. [2022-04-18 19:10:40,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:10:40,579 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:40,676 INFO L225 Difference]: With dead ends: 43083 [2022-04-18 19:10:40,677 INFO L226 Difference]: Without dead ends: 43083 [2022-04-18 19:10:40,677 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:10:40,677 INFO L913 BasicCegarLoop]: 290 mSDtfsCounter, 815 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 4854 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 4973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 4854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:40,677 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [815 Valid, 1557 Invalid, 4973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 4854 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-18 19:10:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43083 states. [2022-04-18 19:10:41,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43083 to 35500. [2022-04-18 19:10:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35500 states, 35457 states have (on average 2.218038751163381) internal successors, (78645), 35499 states have internal predecessors, (78645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35500 states to 35500 states and 78645 transitions. [2022-04-18 19:10:41,420 INFO L78 Accepts]: Start accepts. Automaton has 35500 states and 78645 transitions. Word has length 33 [2022-04-18 19:10:41,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:41,421 INFO L478 AbstractCegarLoop]: Abstraction has 35500 states and 78645 transitions. [2022-04-18 19:10:41,421 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:41,421 INFO L276 IsEmpty]: Start isEmpty. Operand 35500 states and 78645 transitions. [2022-04-18 19:10:41,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:41,427 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:41,428 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, 1, 1] [2022-04-18 19:10:41,428 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-04-18 19:10:41,428 INFO L403 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:41,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:41,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1970547254, now seen corresponding path program 17 times [2022-04-18 19:10:41,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:41,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592498521] [2022-04-18 19:10:41,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:41,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:42,069 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 19:10:42,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:42,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592498521] [2022-04-18 19:10:42,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592498521] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:42,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:42,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:42,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792257819] [2022-04-18 19:10:42,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:42,070 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:42,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:42,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:42,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:42,070 INFO L87 Difference]: Start difference. First operand 35500 states and 78645 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:45,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:45,569 INFO L93 Difference]: Finished difference Result 42895 states and 93834 transitions. [2022-04-18 19:10:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-18 19:10:45,569 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:45,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:45,647 INFO L225 Difference]: With dead ends: 42895 [2022-04-18 19:10:45,648 INFO L226 Difference]: Without dead ends: 42895 [2022-04-18 19:10:45,648 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:10:45,648 INFO L913 BasicCegarLoop]: 293 mSDtfsCounter, 787 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 4948 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 5094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 4948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:45,648 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [787 Valid, 1688 Invalid, 5094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 4948 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:10:45,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42895 states. [2022-04-18 19:10:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42895 to 35294. [2022-04-18 19:10:46,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35294 states, 35251 states have (on average 2.2185753595642677) internal successors, (78207), 35293 states have internal predecessors, (78207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35294 states to 35294 states and 78207 transitions. [2022-04-18 19:10:46,286 INFO L78 Accepts]: Start accepts. Automaton has 35294 states and 78207 transitions. Word has length 33 [2022-04-18 19:10:46,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:46,287 INFO L478 AbstractCegarLoop]: Abstraction has 35294 states and 78207 transitions. [2022-04-18 19:10:46,287 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 35294 states and 78207 transitions. [2022-04-18 19:10:46,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:46,293 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:46,293 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, 1] [2022-04-18 19:10:46,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-04-18 19:10:46,294 INFO L403 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:46,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:46,294 INFO L85 PathProgramCache]: Analyzing trace with hash 885410116, now seen corresponding path program 18 times [2022-04-18 19:10:46,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:46,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064646822] [2022-04-18 19:10:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:46,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:10:47,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:47,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064646822] [2022-04-18 19:10:47,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064646822] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:47,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:47,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:47,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445804992] [2022-04-18 19:10:47,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:47,151 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:47,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:47,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:47,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:47,152 INFO L87 Difference]: Start difference. First operand 35294 states and 78207 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:49,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:49,938 INFO L93 Difference]: Finished difference Result 41870 states and 91744 transitions. [2022-04-18 19:10:49,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:10:49,939 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:49,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:50,017 INFO L225 Difference]: With dead ends: 41870 [2022-04-18 19:10:50,017 INFO L226 Difference]: Without dead ends: 41870 [2022-04-18 19:10:50,017 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:10:50,018 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 824 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 3722 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 3834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:50,018 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [824 Valid, 1371 Invalid, 3834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3722 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:10:50,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41870 states. [2022-04-18 19:10:50,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41870 to 35245. [2022-04-18 19:10:50,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35245 states, 35202 states have (on average 2.2186807567751834) internal successors, (78102), 35244 states have internal predecessors, (78102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35245 states to 35245 states and 78102 transitions. [2022-04-18 19:10:50,681 INFO L78 Accepts]: Start accepts. Automaton has 35245 states and 78102 transitions. Word has length 33 [2022-04-18 19:10:50,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:50,682 INFO L478 AbstractCegarLoop]: Abstraction has 35245 states and 78102 transitions. [2022-04-18 19:10:50,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:50,682 INFO L276 IsEmpty]: Start isEmpty. Operand 35245 states and 78102 transitions. [2022-04-18 19:10:50,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:50,688 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:50,688 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, 1] [2022-04-18 19:10:50,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-04-18 19:10:50,688 INFO L403 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:50,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:50,689 INFO L85 PathProgramCache]: Analyzing trace with hash 935542356, now seen corresponding path program 19 times [2022-04-18 19:10:50,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:50,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382072998] [2022-04-18 19:10:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:50,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:51,314 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 19:10:51,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:51,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382072998] [2022-04-18 19:10:51,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382072998] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:51,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:51,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:51,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034454860] [2022-04-18 19:10:51,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:51,314 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:51,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:51,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:51,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:51,315 INFO L87 Difference]: Start difference. First operand 35245 states and 78102 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:55,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:10:55,107 INFO L93 Difference]: Finished difference Result 43717 states and 95455 transitions. [2022-04-18 19:10:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:10:55,107 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:10:55,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:10:55,194 INFO L225 Difference]: With dead ends: 43717 [2022-04-18 19:10:55,194 INFO L226 Difference]: Without dead ends: 43717 [2022-04-18 19:10:55,194 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=227, Invalid=765, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:10:55,194 INFO L913 BasicCegarLoop]: 323 mSDtfsCounter, 978 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 4943 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 5095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 4943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:10:55,194 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 1770 Invalid, 5095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 4943 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-18 19:10:55,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43717 states. [2022-04-18 19:10:55,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43717 to 35331. [2022-04-18 19:10:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35331 states, 35288 states have (on average 2.218147812287463) internal successors, (78274), 35330 states have internal predecessors, (78274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35331 states to 35331 states and 78274 transitions. [2022-04-18 19:10:56,047 INFO L78 Accepts]: Start accepts. Automaton has 35331 states and 78274 transitions. Word has length 33 [2022-04-18 19:10:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:10:56,048 INFO L478 AbstractCegarLoop]: Abstraction has 35331 states and 78274 transitions. [2022-04-18 19:10:56,048 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:10:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand 35331 states and 78274 transitions. [2022-04-18 19:10:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:10:56,054 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:10:56,055 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, 1] [2022-04-18 19:10:56,055 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-04-18 19:10:56,055 INFO L403 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:10:56,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:10:56,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2095042714, now seen corresponding path program 20 times [2022-04-18 19:10:56,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:10:56,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107622211] [2022-04-18 19:10:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:10:56,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:10:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:10:56,999 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 19:10:56,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:10:57,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107622211] [2022-04-18 19:10:57,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107622211] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:10:57,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:10:57,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:10:57,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792177614] [2022-04-18 19:10:57,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:10:57,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:10:57,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:10:57,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:10:57,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:10:57,002 INFO L87 Difference]: Start difference. First operand 35331 states and 78274 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:00,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:00,430 INFO L93 Difference]: Finished difference Result 43147 states and 94341 transitions. [2022-04-18 19:11:00,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:11:00,431 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:00,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:00,510 INFO L225 Difference]: With dead ends: 43147 [2022-04-18 19:11:00,511 INFO L226 Difference]: Without dead ends: 43147 [2022-04-18 19:11:00,511 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:11:00,511 INFO L913 BasicCegarLoop]: 297 mSDtfsCounter, 771 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 4907 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1580 SdHoareTripleChecker+Invalid, 5043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 4907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:00,512 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 1580 Invalid, 5043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 4907 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:11:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43147 states. [2022-04-18 19:11:01,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43147 to 35332. [2022-04-18 19:11:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35332 states, 35289 states have (on average 2.2181983054209526) internal successors, (78278), 35331 states have internal predecessors, (78278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35332 states to 35332 states and 78278 transitions. [2022-04-18 19:11:01,139 INFO L78 Accepts]: Start accepts. Automaton has 35332 states and 78278 transitions. Word has length 33 [2022-04-18 19:11:01,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:01,140 INFO L478 AbstractCegarLoop]: Abstraction has 35332 states and 78278 transitions. [2022-04-18 19:11:01,140 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:01,140 INFO L276 IsEmpty]: Start isEmpty. Operand 35332 states and 78278 transitions. [2022-04-18 19:11:01,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:01,146 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:01,147 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, 1] [2022-04-18 19:11:01,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-04-18 19:11:01,147 INFO L403 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:01,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:01,147 INFO L85 PathProgramCache]: Analyzing trace with hash -427468090, now seen corresponding path program 21 times [2022-04-18 19:11:01,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:01,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211052427] [2022-04-18 19:11:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:01,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:01,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:01,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211052427] [2022-04-18 19:11:01,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211052427] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:01,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:01,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:01,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826662508] [2022-04-18 19:11:01,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:01,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:01,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:01,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:01,776 INFO L87 Difference]: Start difference. First operand 35332 states and 78278 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:04,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:04,977 INFO L93 Difference]: Finished difference Result 43035 states and 94117 transitions. [2022-04-18 19:11:04,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:11:04,978 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:04,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:05,057 INFO L225 Difference]: With dead ends: 43035 [2022-04-18 19:11:05,057 INFO L226 Difference]: Without dead ends: 43035 [2022-04-18 19:11:05,057 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=198, Invalid=672, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:11:05,057 INFO L913 BasicCegarLoop]: 298 mSDtfsCounter, 808 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 4290 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 4409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 4290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:05,058 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [808 Valid, 1573 Invalid, 4409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 4290 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:11:05,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43035 states. [2022-04-18 19:11:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43035 to 35333. [2022-04-18 19:11:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35333 states, 35290 states have (on average 2.2182487956928307) internal successors, (78282), 35332 states have internal predecessors, (78282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35333 states to 35333 states and 78282 transitions. [2022-04-18 19:11:05,711 INFO L78 Accepts]: Start accepts. Automaton has 35333 states and 78282 transitions. Word has length 33 [2022-04-18 19:11:05,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:05,712 INFO L478 AbstractCegarLoop]: Abstraction has 35333 states and 78282 transitions. [2022-04-18 19:11:05,712 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:05,712 INFO L276 IsEmpty]: Start isEmpty. Operand 35333 states and 78282 transitions. [2022-04-18 19:11:05,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:05,718 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:05,719 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, 1] [2022-04-18 19:11:05,719 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-04-18 19:11:05,719 INFO L403 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:05,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:05,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1866971558, now seen corresponding path program 22 times [2022-04-18 19:11:05,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:05,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977936632] [2022-04-18 19:11:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:05,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:06,109 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 19:11:06,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:06,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977936632] [2022-04-18 19:11:06,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977936632] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:06,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:06,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:11:06,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984465183] [2022-04-18 19:11:06,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:06,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:11:06,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:06,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:11:06,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:11:06,110 INFO L87 Difference]: Start difference. First operand 35333 states and 78282 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:08,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:08,548 INFO L93 Difference]: Finished difference Result 38959 states and 85734 transitions. [2022-04-18 19:11:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:11:08,548 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:08,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:08,625 INFO L225 Difference]: With dead ends: 38959 [2022-04-18 19:11:08,625 INFO L226 Difference]: Without dead ends: 38959 [2022-04-18 19:11:08,626 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:11:08,626 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 563 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 3830 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 3830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:08,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 1220 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 3830 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:11:08,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38959 states. [2022-04-18 19:11:09,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38959 to 34808. [2022-04-18 19:11:09,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34808 states, 34765 states have (on average 2.2184093197181074) internal successors, (77123), 34807 states have internal predecessors, (77123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34808 states to 34808 states and 77123 transitions. [2022-04-18 19:11:09,315 INFO L78 Accepts]: Start accepts. Automaton has 34808 states and 77123 transitions. Word has length 33 [2022-04-18 19:11:09,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:09,316 INFO L478 AbstractCegarLoop]: Abstraction has 34808 states and 77123 transitions. [2022-04-18 19:11:09,316 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 34808 states and 77123 transitions. [2022-04-18 19:11:09,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:09,322 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:09,322 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, 1] [2022-04-18 19:11:09,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-04-18 19:11:09,322 INFO L403 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:09,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:09,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1660548554, now seen corresponding path program 23 times [2022-04-18 19:11:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:09,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437046047] [2022-04-18 19:11:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:09,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:09,852 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 19:11:09,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:09,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437046047] [2022-04-18 19:11:09,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437046047] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:09,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:09,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:09,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62700564] [2022-04-18 19:11:09,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:09,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:09,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:09,853 INFO L87 Difference]: Start difference. First operand 34808 states and 77123 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:13,033 INFO L93 Difference]: Finished difference Result 42853 states and 93442 transitions. [2022-04-18 19:11:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:11:13,033 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:13,112 INFO L225 Difference]: With dead ends: 42853 [2022-04-18 19:11:13,112 INFO L226 Difference]: Without dead ends: 42853 [2022-04-18 19:11:13,112 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=240, Invalid=752, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:11:13,112 INFO L913 BasicCegarLoop]: 265 mSDtfsCounter, 1093 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 3987 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 4161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 3987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:13,113 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1093 Valid, 1663 Invalid, 4161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 3987 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:11:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42853 states. [2022-04-18 19:11:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42853 to 34295. [2022-04-18 19:11:13,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34295 states, 34252 states have (on average 2.2189653158939624) internal successors, (76004), 34294 states have internal predecessors, (76004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34295 states to 34295 states and 76004 transitions. [2022-04-18 19:11:13,879 INFO L78 Accepts]: Start accepts. Automaton has 34295 states and 76004 transitions. Word has length 33 [2022-04-18 19:11:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:13,879 INFO L478 AbstractCegarLoop]: Abstraction has 34295 states and 76004 transitions. [2022-04-18 19:11:13,879 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 34295 states and 76004 transitions. [2022-04-18 19:11:13,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:13,885 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:13,885 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, 1] [2022-04-18 19:11:13,885 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-04-18 19:11:13,885 INFO L403 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:13,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:13,886 INFO L85 PathProgramCache]: Analyzing trace with hash -939834634, now seen corresponding path program 24 times [2022-04-18 19:11:13,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:13,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38399124] [2022-04-18 19:11:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:13,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:14,803 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 19:11:14,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:14,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38399124] [2022-04-18 19:11:14,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38399124] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:14,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:14,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:14,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945435617] [2022-04-18 19:11:14,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:14,804 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:14,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:14,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:14,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:14,805 INFO L87 Difference]: Start difference. First operand 34295 states and 76004 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:17,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:17,421 INFO L93 Difference]: Finished difference Result 42031 states and 91692 transitions. [2022-04-18 19:11:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:11:17,422 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:17,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:17,504 INFO L225 Difference]: With dead ends: 42031 [2022-04-18 19:11:17,504 INFO L226 Difference]: Without dead ends: 42031 [2022-04-18 19:11:17,504 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=252, Invalid=804, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:11:17,505 INFO L913 BasicCegarLoop]: 281 mSDtfsCounter, 751 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 3471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:17,505 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 1801 Invalid, 3471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 3334 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:11:17,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42031 states. [2022-04-18 19:11:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42031 to 34297. [2022-04-18 19:11:18,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34297 states, 34254 states have (on average 2.2189817247620716) internal successors, (76009), 34296 states have internal predecessors, (76009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34297 states to 34297 states and 76009 transitions. [2022-04-18 19:11:18,195 INFO L78 Accepts]: Start accepts. Automaton has 34297 states and 76009 transitions. Word has length 33 [2022-04-18 19:11:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:18,195 INFO L478 AbstractCegarLoop]: Abstraction has 34297 states and 76009 transitions. [2022-04-18 19:11:18,195 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:18,195 INFO L276 IsEmpty]: Start isEmpty. Operand 34297 states and 76009 transitions. [2022-04-18 19:11:18,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:18,201 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:18,202 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, 1, 1] [2022-04-18 19:11:18,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-04-18 19:11:18,202 INFO L403 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:18,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:18,202 INFO L85 PathProgramCache]: Analyzing trace with hash 832621858, now seen corresponding path program 25 times [2022-04-18 19:11:18,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:18,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859521040] [2022-04-18 19:11:18,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:18,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:18,708 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 19:11:18,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:18,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859521040] [2022-04-18 19:11:18,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859521040] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:18,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:18,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:18,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682881140] [2022-04-18 19:11:18,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:18,709 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:18,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:18,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:18,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:18,709 INFO L87 Difference]: Start difference. First operand 34297 states and 76009 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:21,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:21,501 INFO L93 Difference]: Finished difference Result 41947 states and 91524 transitions. [2022-04-18 19:11:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:11:21,501 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:21,594 INFO L225 Difference]: With dead ends: 41947 [2022-04-18 19:11:21,595 INFO L226 Difference]: Without dead ends: 41947 [2022-04-18 19:11:21,595 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=251, Invalid=805, Unknown=0, NotChecked=0, Total=1056 [2022-04-18 19:11:21,595 INFO L913 BasicCegarLoop]: 282 mSDtfsCounter, 883 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 3544 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 3669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 3544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:21,595 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 1656 Invalid, 3669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 3544 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:11:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41947 states. [2022-04-18 19:11:22,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41947 to 34299. [2022-04-18 19:11:22,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34299 states, 34256 states have (on average 2.218998131714152) internal successors, (76014), 34298 states have internal predecessors, (76014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:22,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34299 states to 34299 states and 76014 transitions. [2022-04-18 19:11:22,295 INFO L78 Accepts]: Start accepts. Automaton has 34299 states and 76014 transitions. Word has length 33 [2022-04-18 19:11:22,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:22,295 INFO L478 AbstractCegarLoop]: Abstraction has 34299 states and 76014 transitions. [2022-04-18 19:11:22,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:22,296 INFO L276 IsEmpty]: Start isEmpty. Operand 34299 states and 76014 transitions. [2022-04-18 19:11:22,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:22,302 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:22,302 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, 1] [2022-04-18 19:11:22,302 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-04-18 19:11:22,302 INFO L403 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:22,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:22,303 INFO L85 PathProgramCache]: Analyzing trace with hash -606881610, now seen corresponding path program 26 times [2022-04-18 19:11:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:22,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534599153] [2022-04-18 19:11:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:22,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:22,857 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 19:11:22,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:22,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534599153] [2022-04-18 19:11:22,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534599153] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:22,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:22,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:22,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758850113] [2022-04-18 19:11:22,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:22,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:22,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:22,859 INFO L87 Difference]: Start difference. First operand 34299 states and 76014 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:26,584 INFO L93 Difference]: Finished difference Result 41811 states and 91252 transitions. [2022-04-18 19:11:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-18 19:11:26,585 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:26,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:26,674 INFO L225 Difference]: With dead ends: 41811 [2022-04-18 19:11:26,674 INFO L226 Difference]: Without dead ends: 41811 [2022-04-18 19:11:26,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=291, Invalid=899, Unknown=0, NotChecked=0, Total=1190 [2022-04-18 19:11:26,674 INFO L913 BasicCegarLoop]: 284 mSDtfsCounter, 852 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 5224 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 5310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 5224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:26,675 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 1837 Invalid, 5310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 5224 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-18 19:11:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41811 states. [2022-04-18 19:11:27,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41811 to 34303. [2022-04-18 19:11:27,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34303 states, 34260 states have (on average 2.2190309398715704) internal successors, (76024), 34302 states have internal predecessors, (76024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:27,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34303 states to 34303 states and 76024 transitions. [2022-04-18 19:11:27,371 INFO L78 Accepts]: Start accepts. Automaton has 34303 states and 76024 transitions. Word has length 33 [2022-04-18 19:11:27,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:27,371 INFO L478 AbstractCegarLoop]: Abstraction has 34303 states and 76024 transitions. [2022-04-18 19:11:27,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand 34303 states and 76024 transitions. [2022-04-18 19:11:27,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:27,378 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:27,378 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, 1] [2022-04-18 19:11:27,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-04-18 19:11:27,378 INFO L403 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:27,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:27,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1794332070, now seen corresponding path program 27 times [2022-04-18 19:11:27,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:27,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158598043] [2022-04-18 19:11:27,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:27,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:27,850 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 19:11:27,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:27,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158598043] [2022-04-18 19:11:27,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158598043] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:27,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:27,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:11:27,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658363455] [2022-04-18 19:11:27,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:27,852 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:11:27,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:27,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:11:27,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:11:27,852 INFO L87 Difference]: Start difference. First operand 34303 states and 76024 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:29,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:29,950 INFO L93 Difference]: Finished difference Result 42142 states and 93324 transitions. [2022-04-18 19:11:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:11:29,951 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:29,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:30,033 INFO L225 Difference]: With dead ends: 42142 [2022-04-18 19:11:30,033 INFO L226 Difference]: Without dead ends: 42142 [2022-04-18 19:11:30,034 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:11:30,034 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 453 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 3097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:30,034 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 795 Invalid, 3097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:11:30,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42142 states. [2022-04-18 19:11:30,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42142 to 34305. [2022-04-18 19:11:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34305 states, 34262 states have (on average 2.219047341077579) internal successors, (76029), 34304 states have internal predecessors, (76029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34305 states to 34305 states and 76029 transitions. [2022-04-18 19:11:30,821 INFO L78 Accepts]: Start accepts. Automaton has 34305 states and 76029 transitions. Word has length 33 [2022-04-18 19:11:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:30,822 INFO L478 AbstractCegarLoop]: Abstraction has 34305 states and 76029 transitions. [2022-04-18 19:11:30,822 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:30,822 INFO L276 IsEmpty]: Start isEmpty. Operand 34305 states and 76029 transitions. [2022-04-18 19:11:30,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:30,827 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:30,827 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, 1] [2022-04-18 19:11:30,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-04-18 19:11:30,827 INFO L403 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:30,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1351622184, now seen corresponding path program 28 times [2022-04-18 19:11:30,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:30,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50671579] [2022-04-18 19:11:30,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:31,340 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 19:11:31,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:31,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50671579] [2022-04-18 19:11:31,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50671579] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:31,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:31,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:31,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742667285] [2022-04-18 19:11:31,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:31,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:31,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:31,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:31,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:31,341 INFO L87 Difference]: Start difference. First operand 34305 states and 76029 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:33,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:33,805 INFO L93 Difference]: Finished difference Result 40972 states and 89770 transitions. [2022-04-18 19:11:33,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:11:33,806 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:33,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:33,887 INFO L225 Difference]: With dead ends: 40972 [2022-04-18 19:11:33,887 INFO L226 Difference]: Without dead ends: 40972 [2022-04-18 19:11:33,887 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:11:33,887 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 724 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 3489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:33,887 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [724 Valid, 1170 Invalid, 3489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 3386 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:11:33,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40972 states. [2022-04-18 19:11:34,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40972 to 34303. [2022-04-18 19:11:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34303 states, 34260 states have (on average 2.2190309398715704) internal successors, (76024), 34302 states have internal predecessors, (76024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:34,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34303 states to 34303 states and 76024 transitions. [2022-04-18 19:11:34,507 INFO L78 Accepts]: Start accepts. Automaton has 34303 states and 76024 transitions. Word has length 33 [2022-04-18 19:11:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:34,507 INFO L478 AbstractCegarLoop]: Abstraction has 34303 states and 76024 transitions. [2022-04-18 19:11:34,507 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 34303 states and 76024 transitions. [2022-04-18 19:11:34,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:34,513 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:34,513 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, 1] [2022-04-18 19:11:34,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-04-18 19:11:34,513 INFO L403 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:34,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1444592666, now seen corresponding path program 29 times [2022-04-18 19:11:34,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:34,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821540308] [2022-04-18 19:11:34,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:34,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:35,096 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 19:11:35,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:35,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821540308] [2022-04-18 19:11:35,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821540308] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:35,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:35,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:35,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575699476] [2022-04-18 19:11:35,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:35,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:35,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:35,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:35,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:35,098 INFO L87 Difference]: Start difference. First operand 34303 states and 76024 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:37,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:37,947 INFO L93 Difference]: Finished difference Result 40992 states and 89808 transitions. [2022-04-18 19:11:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-18 19:11:37,948 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:38,130 INFO L225 Difference]: With dead ends: 40992 [2022-04-18 19:11:38,130 INFO L226 Difference]: Without dead ends: 40992 [2022-04-18 19:11:38,130 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:11:38,130 INFO L913 BasicCegarLoop]: 238 mSDtfsCounter, 628 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 4151 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 4246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 4151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:38,130 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [628 Valid, 1284 Invalid, 4246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 4151 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:11:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40992 states. [2022-04-18 19:11:38,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40992 to 34299. [2022-04-18 19:11:38,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34299 states, 34256 states have (on average 2.219027323680523) internal successors, (76015), 34298 states have internal predecessors, (76015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34299 states to 34299 states and 76015 transitions. [2022-04-18 19:11:38,790 INFO L78 Accepts]: Start accepts. Automaton has 34299 states and 76015 transitions. Word has length 33 [2022-04-18 19:11:38,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:38,790 INFO L478 AbstractCegarLoop]: Abstraction has 34299 states and 76015 transitions. [2022-04-18 19:11:38,790 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:38,790 INFO L276 IsEmpty]: Start isEmpty. Operand 34299 states and 76015 transitions. [2022-04-18 19:11:38,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:38,795 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:38,795 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, 1, 1] [2022-04-18 19:11:38,796 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-04-18 19:11:38,796 INFO L403 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:38,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1474010024, now seen corresponding path program 30 times [2022-04-18 19:11:38,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:38,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455057863] [2022-04-18 19:11:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:38,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:39,491 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 19:11:39,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:39,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455057863] [2022-04-18 19:11:39,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455057863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:39,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:39,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:39,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844584332] [2022-04-18 19:11:39,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:39,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:39,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:39,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:39,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:39,492 INFO L87 Difference]: Start difference. First operand 34299 states and 76015 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:42,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:42,243 INFO L93 Difference]: Finished difference Result 40881 states and 89586 transitions. [2022-04-18 19:11:42,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-18 19:11:42,244 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:42,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:42,324 INFO L225 Difference]: With dead ends: 40881 [2022-04-18 19:11:42,324 INFO L226 Difference]: Without dead ends: 40881 [2022-04-18 19:11:42,325 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:11:42,325 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 777 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:42,325 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [777 Valid, 1180 Invalid, 3857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 3763 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:11:42,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40881 states. [2022-04-18 19:11:42,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40881 to 34299. [2022-04-18 19:11:42,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34299 states, 34256 states have (on average 2.219027323680523) internal successors, (76015), 34298 states have internal predecessors, (76015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:42,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34299 states to 34299 states and 76015 transitions. [2022-04-18 19:11:42,968 INFO L78 Accepts]: Start accepts. Automaton has 34299 states and 76015 transitions. Word has length 33 [2022-04-18 19:11:42,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:42,969 INFO L478 AbstractCegarLoop]: Abstraction has 34299 states and 76015 transitions. [2022-04-18 19:11:42,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:42,969 INFO L276 IsEmpty]: Start isEmpty. Operand 34299 states and 76015 transitions. [2022-04-18 19:11:42,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:42,975 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:42,975 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, 1] [2022-04-18 19:11:42,975 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-04-18 19:11:42,975 INFO L403 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:42,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:42,976 INFO L85 PathProgramCache]: Analyzing trace with hash 324996982, now seen corresponding path program 31 times [2022-04-18 19:11:42,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:42,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931235250] [2022-04-18 19:11:42,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:42,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:43,622 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 19:11:43,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:43,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931235250] [2022-04-18 19:11:43,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931235250] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:43,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:43,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:43,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979637695] [2022-04-18 19:11:43,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:43,623 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:43,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:43,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:43,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:43,623 INFO L87 Difference]: Start difference. First operand 34299 states and 76015 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:46,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:46,211 INFO L93 Difference]: Finished difference Result 40954 states and 89732 transitions. [2022-04-18 19:11:46,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-18 19:11:46,211 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:46,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:46,286 INFO L225 Difference]: With dead ends: 40954 [2022-04-18 19:11:46,287 INFO L226 Difference]: Without dead ends: 40954 [2022-04-18 19:11:46,287 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:11:46,287 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 670 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 3649 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 3750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 3649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:46,287 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 1276 Invalid, 3750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 3649 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:11:46,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40954 states. [2022-04-18 19:11:46,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40954 to 34295. [2022-04-18 19:11:46,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34295 states, 34252 states have (on average 2.2190237066448675) internal successors, (76006), 34294 states have internal predecessors, (76006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:46,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34295 states to 34295 states and 76006 transitions. [2022-04-18 19:11:46,965 INFO L78 Accepts]: Start accepts. Automaton has 34295 states and 76006 transitions. Word has length 33 [2022-04-18 19:11:46,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:46,966 INFO L478 AbstractCegarLoop]: Abstraction has 34295 states and 76006 transitions. [2022-04-18 19:11:46,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:46,966 INFO L276 IsEmpty]: Start isEmpty. Operand 34295 states and 76006 transitions. [2022-04-18 19:11:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:46,972 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:46,972 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, 1] [2022-04-18 19:11:46,972 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-04-18 19:11:46,972 INFO L403 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:46,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:46,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1945953242, now seen corresponding path program 32 times [2022-04-18 19:11:46,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:46,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826923728] [2022-04-18 19:11:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:46,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:47,612 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 19:11:47,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:47,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826923728] [2022-04-18 19:11:47,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826923728] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:47,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:47,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:47,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908061375] [2022-04-18 19:11:47,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:47,613 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:47,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:47,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:47,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:47,614 INFO L87 Difference]: Start difference. First operand 34295 states and 76006 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:50,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:50,866 INFO L93 Difference]: Finished difference Result 40866 states and 89553 transitions. [2022-04-18 19:11:50,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:11:50,866 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:50,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:50,948 INFO L225 Difference]: With dead ends: 40866 [2022-04-18 19:11:50,949 INFO L226 Difference]: Without dead ends: 40866 [2022-04-18 19:11:50,949 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:11:50,949 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 859 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 4499 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 4606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:50,949 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 1187 Invalid, 4606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 4499 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:11:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40866 states. [2022-04-18 19:11:51,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40866 to 34286. [2022-04-18 19:11:51,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34286 states, 34243 states have (on average 2.219022865987209) internal successors, (75986), 34285 states have internal predecessors, (75986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:51,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34286 states to 34286 states and 75986 transitions. [2022-04-18 19:11:51,582 INFO L78 Accepts]: Start accepts. Automaton has 34286 states and 75986 transitions. Word has length 33 [2022-04-18 19:11:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:51,583 INFO L478 AbstractCegarLoop]: Abstraction has 34286 states and 75986 transitions. [2022-04-18 19:11:51,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:51,583 INFO L276 IsEmpty]: Start isEmpty. Operand 34286 states and 75986 transitions. [2022-04-18 19:11:51,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:51,589 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:51,589 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, 1] [2022-04-18 19:11:51,589 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-04-18 19:11:51,589 INFO L403 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:51,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:51,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1628918784, now seen corresponding path program 33 times [2022-04-18 19:11:51,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:51,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942769388] [2022-04-18 19:11:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:51,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:52,200 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 19:11:52,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:52,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942769388] [2022-04-18 19:11:52,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942769388] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:52,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:52,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:52,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832401546] [2022-04-18 19:11:52,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:52,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:52,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:52,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:52,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:52,201 INFO L87 Difference]: Start difference. First operand 34286 states and 75986 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:55,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:55,171 INFO L93 Difference]: Finished difference Result 44159 states and 96738 transitions. [2022-04-18 19:11:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:11:55,172 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:55,250 INFO L225 Difference]: With dead ends: 44159 [2022-04-18 19:11:55,250 INFO L226 Difference]: Without dead ends: 44159 [2022-04-18 19:11:55,250 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:11:55,251 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 903 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 3823 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 3823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:55,251 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 1201 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 3823 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:11:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44159 states. [2022-04-18 19:11:55,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44159 to 34163. [2022-04-18 19:11:55,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34163 states, 34120 states have (on average 2.219255568581477) internal successors, (75721), 34162 states have internal predecessors, (75721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34163 states to 34163 states and 75721 transitions. [2022-04-18 19:11:55,808 INFO L78 Accepts]: Start accepts. Automaton has 34163 states and 75721 transitions. Word has length 33 [2022-04-18 19:11:55,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:11:55,808 INFO L478 AbstractCegarLoop]: Abstraction has 34163 states and 75721 transitions. [2022-04-18 19:11:55,808 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:55,808 INFO L276 IsEmpty]: Start isEmpty. Operand 34163 states and 75721 transitions. [2022-04-18 19:11:55,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:11:55,814 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:11:55,814 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, 1] [2022-04-18 19:11:55,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-04-18 19:11:55,814 INFO L403 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:11:55,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:11:55,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1159442774, now seen corresponding path program 34 times [2022-04-18 19:11:55,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:11:55,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152314421] [2022-04-18 19:11:55,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:11:55,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:11:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:11:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:11:56,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:11:56,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152314421] [2022-04-18 19:11:56,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152314421] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:11:56,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:11:56,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:11:56,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669482525] [2022-04-18 19:11:56,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:11:56,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:11:56,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:11:56,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:11:56,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:11:56,529 INFO L87 Difference]: Start difference. First operand 34163 states and 75721 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:11:59,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:11:59,920 INFO L93 Difference]: Finished difference Result 43225 states and 94705 transitions. [2022-04-18 19:11:59,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:11:59,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:11:59,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:11:59,998 INFO L225 Difference]: With dead ends: 43225 [2022-04-18 19:11:59,998 INFO L226 Difference]: Without dead ends: 43225 [2022-04-18 19:11:59,998 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-04-18 19:11:59,999 INFO L913 BasicCegarLoop]: 295 mSDtfsCounter, 835 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 4760 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 4869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 4760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:11:59,999 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [835 Valid, 1409 Invalid, 4869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 4760 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-18 19:12:00,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43225 states. [2022-04-18 19:12:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43225 to 34009. [2022-04-18 19:12:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34009 states, 33966 states have (on average 2.218954248366013) internal successors, (75369), 34008 states have internal predecessors, (75369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34009 states to 34009 states and 75369 transitions. [2022-04-18 19:12:00,741 INFO L78 Accepts]: Start accepts. Automaton has 34009 states and 75369 transitions. Word has length 33 [2022-04-18 19:12:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:00,741 INFO L478 AbstractCegarLoop]: Abstraction has 34009 states and 75369 transitions. [2022-04-18 19:12:00,741 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 34009 states and 75369 transitions. [2022-04-18 19:12:00,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:12:00,747 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:00,747 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, 1] [2022-04-18 19:12:00,747 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-04-18 19:12:00,747 INFO L403 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:00,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:00,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1209575014, now seen corresponding path program 35 times [2022-04-18 19:12:00,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:00,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591889283] [2022-04-18 19:12:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:00,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:01,290 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 19:12:01,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:01,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591889283] [2022-04-18 19:12:01,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591889283] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:01,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:01,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:12:01,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105962027] [2022-04-18 19:12:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:01,291 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:12:01,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:01,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:12:01,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:12:01,292 INFO L87 Difference]: Start difference. First operand 34009 states and 75369 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:05,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:05,480 INFO L93 Difference]: Finished difference Result 42302 states and 92133 transitions. [2022-04-18 19:12:05,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:12:05,480 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:12:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:05,563 INFO L225 Difference]: With dead ends: 42302 [2022-04-18 19:12:05,563 INFO L226 Difference]: Without dead ends: 42302 [2022-04-18 19:12:05,563 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=239, Invalid=753, Unknown=0, NotChecked=0, Total=992 [2022-04-18 19:12:05,563 INFO L913 BasicCegarLoop]: 325 mSDtfsCounter, 934 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 6021 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 6163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 6021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:05,563 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 1839 Invalid, 6163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 6021 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-18 19:12:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42302 states. [2022-04-18 19:12:06,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42302 to 33109. [2022-04-18 19:12:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33109 states, 33066 states have (on average 2.219167725155749) internal successors, (73379), 33108 states have internal predecessors, (73379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:06,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33109 states to 33109 states and 73379 transitions. [2022-04-18 19:12:06,287 INFO L78 Accepts]: Start accepts. Automaton has 33109 states and 73379 transitions. Word has length 33 [2022-04-18 19:12:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:06,287 INFO L478 AbstractCegarLoop]: Abstraction has 33109 states and 73379 transitions. [2022-04-18 19:12:06,287 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:06,287 INFO L276 IsEmpty]: Start isEmpty. Operand 33109 states and 73379 transitions. [2022-04-18 19:12:06,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:12:06,293 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:06,293 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, 1] [2022-04-18 19:12:06,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-04-18 19:12:06,293 INFO L403 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:06,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:06,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1925891924, now seen corresponding path program 36 times [2022-04-18 19:12:06,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:06,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836225952] [2022-04-18 19:12:06,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:06,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:07,180 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 19:12:07,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:07,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836225952] [2022-04-18 19:12:07,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836225952] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:07,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:07,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:12:07,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726169850] [2022-04-18 19:12:07,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:07,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:12:07,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:07,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:12:07,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:12:07,182 INFO L87 Difference]: Start difference. First operand 33109 states and 73379 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:09,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:09,807 INFO L93 Difference]: Finished difference Result 40506 states and 88196 transitions. [2022-04-18 19:12:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:12:09,807 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:12:09,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:09,896 INFO L225 Difference]: With dead ends: 40506 [2022-04-18 19:12:09,896 INFO L226 Difference]: Without dead ends: 40506 [2022-04-18 19:12:09,896 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=223, Invalid=707, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:12:09,896 INFO L913 BasicCegarLoop]: 298 mSDtfsCounter, 856 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 3263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:09,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [856 Valid, 1531 Invalid, 3263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 3106 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:12:09,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40506 states. [2022-04-18 19:12:10,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40506 to 33107. [2022-04-18 19:12:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33107 states, 33064 states have (on average 2.2191809823372854) internal successors, (73375), 33106 states have internal predecessors, (73375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33107 states to 33107 states and 73375 transitions. [2022-04-18 19:12:10,520 INFO L78 Accepts]: Start accepts. Automaton has 33107 states and 73375 transitions. Word has length 33 [2022-04-18 19:12:10,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:10,520 INFO L478 AbstractCegarLoop]: Abstraction has 33107 states and 73375 transitions. [2022-04-18 19:12:10,520 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:10,520 INFO L276 IsEmpty]: Start isEmpty. Operand 33107 states and 73375 transitions. [2022-04-18 19:12:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:12:10,526 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:10,526 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, 1] [2022-04-18 19:12:10,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-04-18 19:12:10,527 INFO L403 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash -153435432, now seen corresponding path program 37 times [2022-04-18 19:12:10,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:10,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203656571] [2022-04-18 19:12:10,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:10,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:11,266 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 19:12:11,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:11,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203656571] [2022-04-18 19:12:11,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203656571] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:11,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:11,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-04-18 19:12:11,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950318694] [2022-04-18 19:12:11,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:11,267 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-04-18 19:12:11,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:11,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-04-18 19:12:11,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-04-18 19:12:11,268 INFO L87 Difference]: Start difference. First operand 33107 states and 73375 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:14,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:14,342 INFO L93 Difference]: Finished difference Result 47556 states and 104180 transitions. [2022-04-18 19:12:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:12:14,342 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:12:14,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:14,435 INFO L225 Difference]: With dead ends: 47556 [2022-04-18 19:12:14,435 INFO L226 Difference]: Without dead ends: 47556 [2022-04-18 19:12:14,435 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=705, Unknown=0, NotChecked=0, Total=930 [2022-04-18 19:12:14,436 INFO L913 BasicCegarLoop]: 283 mSDtfsCounter, 1024 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 4034 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 4157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 4034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:14,436 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1024 Valid, 1582 Invalid, 4157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 4034 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:12:14,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47556 states. [2022-04-18 19:12:14,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47556 to 33107. [2022-04-18 19:12:15,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33107 states, 33064 states have (on average 2.2191809823372854) internal successors, (73375), 33106 states have internal predecessors, (73375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:15,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33107 states to 33107 states and 73375 transitions. [2022-04-18 19:12:15,069 INFO L78 Accepts]: Start accepts. Automaton has 33107 states and 73375 transitions. Word has length 33 [2022-04-18 19:12:15,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:15,069 INFO L478 AbstractCegarLoop]: Abstraction has 33107 states and 73375 transitions. [2022-04-18 19:12:15,069 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:15,069 INFO L276 IsEmpty]: Start isEmpty. Operand 33107 states and 73375 transitions. [2022-04-18 19:12:15,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 19:12:15,075 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:15,075 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, 1] [2022-04-18 19:12:15,075 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-04-18 19:12:15,075 INFO L403 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:15,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:15,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1592938900, now seen corresponding path program 38 times [2022-04-18 19:12:15,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:15,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025676652] [2022-04-18 19:12:15,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:15,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:15,519 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 19:12:15,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:15,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025676652] [2022-04-18 19:12:15,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025676652] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:15,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:15,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:15,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959975363] [2022-04-18 19:12:15,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:15,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:15,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:15,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:15,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:15,520 INFO L87 Difference]: Start difference. First operand 33107 states and 73375 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:18,373 INFO L93 Difference]: Finished difference Result 39457 states and 86871 transitions. [2022-04-18 19:12:18,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-18 19:12:18,373 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 19:12:18,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:18,449 INFO L225 Difference]: With dead ends: 39457 [2022-04-18 19:12:18,449 INFO L226 Difference]: Without dead ends: 39457 [2022-04-18 19:12:18,450 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2022-04-18 19:12:18,450 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 585 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 4828 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 4864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:18,450 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [585 Valid, 1239 Invalid, 4864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4828 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:12:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39457 states. [2022-04-18 19:12:18,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39457 to 32812. [2022-04-18 19:12:18,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32812 states, 32769 states have (on average 2.2198419237694162) internal successors, (72742), 32811 states have internal predecessors, (72742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:19,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32812 states to 32812 states and 72742 transitions. [2022-04-18 19:12:19,047 INFO L78 Accepts]: Start accepts. Automaton has 32812 states and 72742 transitions. Word has length 33 [2022-04-18 19:12:19,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:19,047 INFO L478 AbstractCegarLoop]: Abstraction has 32812 states and 72742 transitions. [2022-04-18 19:12:19,047 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 32812 states and 72742 transitions. [2022-04-18 19:12:19,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:19,056 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:19,056 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:19,056 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-04-18 19:12:19,056 INFO L403 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:19,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:19,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1011443838, now seen corresponding path program 1 times [2022-04-18 19:12:19,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:19,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872653683] [2022-04-18 19:12:19,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:19,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:20,278 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 19:12:20,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:20,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872653683] [2022-04-18 19:12:20,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872653683] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:20,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:20,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:20,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697849421] [2022-04-18 19:12:20,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:20,279 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:20,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:20,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:20,279 INFO L87 Difference]: Start difference. First operand 32812 states and 72742 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:22,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:22,467 INFO L93 Difference]: Finished difference Result 38369 states and 84283 transitions. [2022-04-18 19:12:22,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:12:22,468 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:22,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:22,544 INFO L225 Difference]: With dead ends: 38369 [2022-04-18 19:12:22,544 INFO L226 Difference]: Without dead ends: 38369 [2022-04-18 19:12:22,545 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:12:22,545 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 814 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 2800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:22,545 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [814 Valid, 642 Invalid, 2800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 19:12:22,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38369 states. [2022-04-18 19:12:22,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38369 to 33394. [2022-04-18 19:12:23,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33394 states, 33351 states have (on average 2.2184042457497526) internal successors, (73986), 33393 states have internal predecessors, (73986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33394 states to 33394 states and 73986 transitions. [2022-04-18 19:12:23,234 INFO L78 Accepts]: Start accepts. Automaton has 33394 states and 73986 transitions. Word has length 38 [2022-04-18 19:12:23,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:23,234 INFO L478 AbstractCegarLoop]: Abstraction has 33394 states and 73986 transitions. [2022-04-18 19:12:23,235 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 33394 states and 73986 transitions. [2022-04-18 19:12:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:23,243 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:23,243 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:23,243 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-04-18 19:12:23,243 INFO L403 AbstractCegarLoop]: === Iteration 148 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:23,244 INFO L85 PathProgramCache]: Analyzing trace with hash 262453680, now seen corresponding path program 1 times [2022-04-18 19:12:23,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:23,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068153927] [2022-04-18 19:12:23,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:23,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:23,487 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 19:12:23,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:23,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068153927] [2022-04-18 19:12:23,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068153927] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:23,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:23,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:23,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802913691] [2022-04-18 19:12:23,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:23,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:23,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:23,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:23,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:23,488 INFO L87 Difference]: Start difference. First operand 33394 states and 73986 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:26,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:26,269 INFO L93 Difference]: Finished difference Result 39665 states and 86954 transitions. [2022-04-18 19:12:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-04-18 19:12:26,270 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:26,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:26,342 INFO L225 Difference]: With dead ends: 39665 [2022-04-18 19:12:26,342 INFO L226 Difference]: Without dead ends: 39665 [2022-04-18 19:12:26,342 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=358, Invalid=902, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:12:26,342 INFO L913 BasicCegarLoop]: 106 mSDtfsCounter, 754 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:26,342 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [754 Valid, 520 Invalid, 3440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:12:26,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39665 states. [2022-04-18 19:12:26,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39665 to 33387. [2022-04-18 19:12:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33387 states, 33344 states have (on average 2.218240163147793) internal successors, (73965), 33386 states have internal predecessors, (73965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33387 states to 33387 states and 73965 transitions. [2022-04-18 19:12:26,990 INFO L78 Accepts]: Start accepts. Automaton has 33387 states and 73965 transitions. Word has length 38 [2022-04-18 19:12:26,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:26,991 INFO L478 AbstractCegarLoop]: Abstraction has 33387 states and 73965 transitions. [2022-04-18 19:12:26,991 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 33387 states and 73965 transitions. [2022-04-18 19:12:27,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:27,000 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:27,000 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:27,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-04-18 19:12:27,000 INFO L403 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:27,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1226894786, now seen corresponding path program 2 times [2022-04-18 19:12:27,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:27,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274809474] [2022-04-18 19:12:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:27,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:12:28,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:28,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274809474] [2022-04-18 19:12:28,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274809474] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:28,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:28,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:12:28,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293588594] [2022-04-18 19:12:28,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:28,453 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:12:28,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:28,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:12:28,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:12:28,453 INFO L87 Difference]: Start difference. First operand 33387 states and 73965 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:31,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:31,336 INFO L93 Difference]: Finished difference Result 41015 states and 90178 transitions. [2022-04-18 19:12:31,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:12:31,337 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:31,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:31,415 INFO L225 Difference]: With dead ends: 41015 [2022-04-18 19:12:31,415 INFO L226 Difference]: Without dead ends: 41015 [2022-04-18 19:12:31,416 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:12:31,416 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 729 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 3731 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 3914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 3731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:31,416 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [729 Valid, 885 Invalid, 3914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 3731 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:12:31,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41015 states. [2022-04-18 19:12:31,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41015 to 34788. [2022-04-18 19:12:31,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34788 states, 34745 states have (on average 2.2152252122607567) internal successors, (76968), 34787 states have internal predecessors, (76968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:31,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34788 states to 34788 states and 76968 transitions. [2022-04-18 19:12:31,997 INFO L78 Accepts]: Start accepts. Automaton has 34788 states and 76968 transitions. Word has length 38 [2022-04-18 19:12:31,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:31,997 INFO L478 AbstractCegarLoop]: Abstraction has 34788 states and 76968 transitions. [2022-04-18 19:12:31,997 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:31,997 INFO L276 IsEmpty]: Start isEmpty. Operand 34788 states and 76968 transitions. [2022-04-18 19:12:32,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:32,006 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:32,006 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:32,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-04-18 19:12:32,007 INFO L403 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:32,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash -379646800, now seen corresponding path program 3 times [2022-04-18 19:12:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:32,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051378526] [2022-04-18 19:12:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:32,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:33,230 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 19:12:33,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:33,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051378526] [2022-04-18 19:12:33,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051378526] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:33,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:33,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:33,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015852900] [2022-04-18 19:12:33,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:33,231 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:33,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:33,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:33,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:33,232 INFO L87 Difference]: Start difference. First operand 34788 states and 76968 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:35,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:35,823 INFO L93 Difference]: Finished difference Result 40352 states and 88591 transitions. [2022-04-18 19:12:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:12:35,823 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:35,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:35,896 INFO L225 Difference]: With dead ends: 40352 [2022-04-18 19:12:35,896 INFO L226 Difference]: Without dead ends: 40352 [2022-04-18 19:12:35,897 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:12:35,897 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 613 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 3641 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 3764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:35,897 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [613 Valid, 964 Invalid, 3764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 3641 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:12:35,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40352 states. [2022-04-18 19:12:36,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40352 to 35348. [2022-04-18 19:12:36,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35348 states, 35305 states have (on average 2.2148704149553886) internal successors, (78196), 35347 states have internal predecessors, (78196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:36,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35348 states to 35348 states and 78196 transitions. [2022-04-18 19:12:36,487 INFO L78 Accepts]: Start accepts. Automaton has 35348 states and 78196 transitions. Word has length 38 [2022-04-18 19:12:36,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:36,487 INFO L478 AbstractCegarLoop]: Abstraction has 35348 states and 78196 transitions. [2022-04-18 19:12:36,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 35348 states and 78196 transitions. [2022-04-18 19:12:36,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:36,497 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:36,497 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:36,497 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-04-18 19:12:36,497 INFO L403 AbstractCegarLoop]: === Iteration 151 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:36,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:36,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1794174992, now seen corresponding path program 2 times [2022-04-18 19:12:36,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:36,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823914933] [2022-04-18 19:12:36,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:36,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:36,810 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 19:12:36,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:36,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823914933] [2022-04-18 19:12:36,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823914933] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:36,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:36,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:36,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435521655] [2022-04-18 19:12:36,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:36,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:36,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:36,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:36,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:36,811 INFO L87 Difference]: Start difference. First operand 35348 states and 78196 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:40,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:40,001 INFO L93 Difference]: Finished difference Result 43368 states and 94784 transitions. [2022-04-18 19:12:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-18 19:12:40,002 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:40,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:40,092 INFO L225 Difference]: With dead ends: 43368 [2022-04-18 19:12:40,092 INFO L226 Difference]: Without dead ends: 43368 [2022-04-18 19:12:40,093 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=424, Invalid=1136, Unknown=0, NotChecked=0, Total=1560 [2022-04-18 19:12:40,093 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 761 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 783 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 783 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:40,093 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 880 Invalid, 3705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [783 Valid, 2922 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:12:40,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43368 states. [2022-04-18 19:12:40,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43368 to 34978. [2022-04-18 19:12:40,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34978 states, 34935 states have (on average 2.214942035208244) internal successors, (77379), 34977 states have internal predecessors, (77379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:40,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34978 states to 34978 states and 77379 transitions. [2022-04-18 19:12:40,660 INFO L78 Accepts]: Start accepts. Automaton has 34978 states and 77379 transitions. Word has length 38 [2022-04-18 19:12:40,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:40,661 INFO L478 AbstractCegarLoop]: Abstraction has 34978 states and 77379 transitions. [2022-04-18 19:12:40,661 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:40,661 INFO L276 IsEmpty]: Start isEmpty. Operand 34978 states and 77379 transitions. [2022-04-18 19:12:40,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:40,671 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:40,671 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, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:40,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-04-18 19:12:40,671 INFO L403 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:40,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:40,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1324057372, now seen corresponding path program 4 times [2022-04-18 19:12:40,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:40,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952088710] [2022-04-18 19:12:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:42,616 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 19:12:42,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:42,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952088710] [2022-04-18 19:12:42,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952088710] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:42,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:42,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:42,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13301303] [2022-04-18 19:12:42,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:42,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:42,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:42,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:42,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:42,617 INFO L87 Difference]: Start difference. First operand 34978 states and 77379 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:45,452 INFO L93 Difference]: Finished difference Result 42184 states and 92223 transitions. [2022-04-18 19:12:45,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:12:45,453 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:45,544 INFO L225 Difference]: With dead ends: 42184 [2022-04-18 19:12:45,544 INFO L226 Difference]: Without dead ends: 42184 [2022-04-18 19:12:45,544 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-04-18 19:12:45,544 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 826 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 3793 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 3971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 3793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:45,544 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 1161 Invalid, 3971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 3793 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:12:45,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42184 states. [2022-04-18 19:12:46,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42184 to 36846. [2022-04-18 19:12:46,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36846 states, 36803 states have (on average 2.2103632856017175) internal successors, (81348), 36845 states have internal predecessors, (81348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:46,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36846 states to 36846 states and 81348 transitions. [2022-04-18 19:12:46,265 INFO L78 Accepts]: Start accepts. Automaton has 36846 states and 81348 transitions. Word has length 38 [2022-04-18 19:12:46,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:46,265 INFO L478 AbstractCegarLoop]: Abstraction has 36846 states and 81348 transitions. [2022-04-18 19:12:46,265 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:46,265 INFO L276 IsEmpty]: Start isEmpty. Operand 36846 states and 81348 transitions. [2022-04-18 19:12:46,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:46,275 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:46,275 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:46,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-04-18 19:12:46,275 INFO L403 AbstractCegarLoop]: === Iteration 153 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:46,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:46,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1697012406, now seen corresponding path program 3 times [2022-04-18 19:12:46,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:46,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911385794] [2022-04-18 19:12:46,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:46,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:46,494 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 19:12:46,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:46,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911385794] [2022-04-18 19:12:46,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911385794] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:46,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:46,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:46,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747558664] [2022-04-18 19:12:46,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:46,495 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:46,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:46,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:46,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:46,496 INFO L87 Difference]: Start difference. First operand 36846 states and 81348 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:48,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:48,478 INFO L93 Difference]: Finished difference Result 56211 states and 121336 transitions. [2022-04-18 19:12:48,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-18 19:12:48,478 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:48,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:48,604 INFO L225 Difference]: With dead ends: 56211 [2022-04-18 19:12:48,604 INFO L226 Difference]: Without dead ends: 56211 [2022-04-18 19:12:48,604 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=576, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:12:48,604 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 795 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:48,605 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 1043 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 19:12:48,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56211 states. [2022-04-18 19:12:49,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56211 to 40505. [2022-04-18 19:12:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40505 states, 40462 states have (on average 2.21168009490386) internal successors, (89489), 40504 states have internal predecessors, (89489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40505 states to 40505 states and 89489 transitions. [2022-04-18 19:12:49,704 INFO L78 Accepts]: Start accepts. Automaton has 40505 states and 89489 transitions. Word has length 38 [2022-04-18 19:12:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:49,704 INFO L478 AbstractCegarLoop]: Abstraction has 40505 states and 89489 transitions. [2022-04-18 19:12:49,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 40505 states and 89489 transitions. [2022-04-18 19:12:49,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:49,714 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:49,715 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:49,715 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-04-18 19:12:49,715 INFO L403 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:49,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:49,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1984785558, now seen corresponding path program 5 times [2022-04-18 19:12:49,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:49,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652429270] [2022-04-18 19:12:49,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:49,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:51,533 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 19:12:51,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:51,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652429270] [2022-04-18 19:12:51,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652429270] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:51,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:51,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:51,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905289517] [2022-04-18 19:12:51,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:51,533 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:51,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:51,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:51,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:51,534 INFO L87 Difference]: Start difference. First operand 40505 states and 89489 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:53,926 INFO L93 Difference]: Finished difference Result 46568 states and 101916 transitions. [2022-04-18 19:12:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:12:53,927 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:54,019 INFO L225 Difference]: With dead ends: 46568 [2022-04-18 19:12:54,020 INFO L226 Difference]: Without dead ends: 46568 [2022-04-18 19:12:54,020 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:12:54,020 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 670 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 3205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:54,020 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [670 Valid, 1040 Invalid, 3205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2977 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 19:12:54,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46568 states. [2022-04-18 19:12:54,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46568 to 40512. [2022-04-18 19:12:54,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40512 states, 40469 states have (on average 2.2117917418270774) internal successors, (89509), 40511 states have internal predecessors, (89509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:54,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40512 states to 40512 states and 89509 transitions. [2022-04-18 19:12:54,764 INFO L78 Accepts]: Start accepts. Automaton has 40512 states and 89509 transitions. Word has length 38 [2022-04-18 19:12:54,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:12:54,765 INFO L478 AbstractCegarLoop]: Abstraction has 40512 states and 89509 transitions. [2022-04-18 19:12:54,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:54,765 INFO L276 IsEmpty]: Start isEmpty. Operand 40512 states and 89509 transitions. [2022-04-18 19:12:54,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:12:54,774 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:12:54,775 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:12:54,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-04-18 19:12:54,775 INFO L403 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:12:54,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:12:54,775 INFO L85 PathProgramCache]: Analyzing trace with hash 329473514, now seen corresponding path program 6 times [2022-04-18 19:12:54,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:12:54,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865634962] [2022-04-18 19:12:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:12:54,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:12:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:12:56,696 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 19:12:56,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:12:56,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865634962] [2022-04-18 19:12:56,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865634962] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:12:56,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:12:56,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:12:56,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93206954] [2022-04-18 19:12:56,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:12:56,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:12:56,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:12:56,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:12:56,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:12:56,698 INFO L87 Difference]: Start difference. First operand 40512 states and 89509 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:12:59,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:12:59,428 INFO L93 Difference]: Finished difference Result 46108 states and 100968 transitions. [2022-04-18 19:12:59,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:12:59,428 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:12:59,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:12:59,520 INFO L225 Difference]: With dead ends: 46108 [2022-04-18 19:12:59,520 INFO L226 Difference]: Without dead ends: 46108 [2022-04-18 19:12:59,520 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-04-18 19:12:59,521 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 677 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 3814 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 4035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 3814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:12:59,521 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [677 Valid, 1090 Invalid, 4035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 3814 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-18 19:12:59,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46108 states. [2022-04-18 19:13:00,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46108 to 40519. [2022-04-18 19:13:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40519 states, 40476 states have (on average 2.2119033501334124) internal successors, (89529), 40518 states have internal predecessors, (89529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40519 states to 40519 states and 89529 transitions. [2022-04-18 19:13:00,210 INFO L78 Accepts]: Start accepts. Automaton has 40519 states and 89529 transitions. Word has length 38 [2022-04-18 19:13:00,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:13:00,210 INFO L478 AbstractCegarLoop]: Abstraction has 40519 states and 89529 transitions. [2022-04-18 19:13:00,210 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 40519 states and 89529 transitions. [2022-04-18 19:13:00,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:13:00,220 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:00,220 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:13:00,220 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-04-18 19:13:00,220 INFO L403 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:13:00,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:00,221 INFO L85 PathProgramCache]: Analyzing trace with hash -132608298, now seen corresponding path program 7 times [2022-04-18 19:13:00,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:00,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116680704] [2022-04-18 19:13:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:00,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:13:01,913 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 19:13:01,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:13:01,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116680704] [2022-04-18 19:13:01,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116680704] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:13:01,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:13:01,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:13:01,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983349238] [2022-04-18 19:13:01,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:13:01,914 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:13:01,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:13:01,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:13:01,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:13:01,914 INFO L87 Difference]: Start difference. First operand 40519 states and 89529 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:05,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:13:05,070 INFO L93 Difference]: Finished difference Result 45366 states and 99418 transitions. [2022-04-18 19:13:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-18 19:13:05,071 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:13:05,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:13:05,162 INFO L225 Difference]: With dead ends: 45366 [2022-04-18 19:13:05,162 INFO L226 Difference]: Without dead ends: 45366 [2022-04-18 19:13:05,162 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=595, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:13:05,162 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 736 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 4461 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 4608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 4461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:13:05,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [736 Valid, 1104 Invalid, 4608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 4461 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-18 19:13:05,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45366 states. [2022-04-18 19:13:05,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45366 to 40215. [2022-04-18 19:13:05,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40215 states, 40172 states have (on average 2.2121378074280593) internal successors, (88866), 40214 states have internal predecessors, (88866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:05,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40215 states to 40215 states and 88866 transitions. [2022-04-18 19:13:05,908 INFO L78 Accepts]: Start accepts. Automaton has 40215 states and 88866 transitions. Word has length 38 [2022-04-18 19:13:05,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:13:05,908 INFO L478 AbstractCegarLoop]: Abstraction has 40215 states and 88866 transitions. [2022-04-18 19:13:05,908 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:05,908 INFO L276 IsEmpty]: Start isEmpty. Operand 40215 states and 88866 transitions. [2022-04-18 19:13:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:13:05,918 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:05,918 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:13:05,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-04-18 19:13:05,919 INFO L403 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:13:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash -322883202, now seen corresponding path program 8 times [2022-04-18 19:13:05,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:05,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676139238] [2022-04-18 19:13:05,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:05,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:13:07,365 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 19:13:07,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:13:07,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676139238] [2022-04-18 19:13:07,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676139238] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:13:07,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:13:07,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-04-18 19:13:07,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239437033] [2022-04-18 19:13:07,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:13:07,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-04-18 19:13:07,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:13:07,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-04-18 19:13:07,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:13:07,366 INFO L87 Difference]: Start difference. First operand 40215 states and 88866 transitions. Second operand has 17 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:10,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:13:10,159 INFO L93 Difference]: Finished difference Result 46682 states and 102287 transitions. [2022-04-18 19:13:10,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:13:10,160 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:13:10,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:13:10,260 INFO L225 Difference]: With dead ends: 46682 [2022-04-18 19:13:10,260 INFO L226 Difference]: Without dead ends: 46682 [2022-04-18 19:13:10,260 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2022-04-18 19:13:10,260 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 687 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 3739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:13:10,261 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [687 Valid, 893 Invalid, 3739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:13:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46682 states. [2022-04-18 19:13:10,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46682 to 40439. [2022-04-18 19:13:10,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40439 states, 40396 states have (on average 2.2112090305970886) internal successors, (89324), 40438 states have internal predecessors, (89324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:11,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40439 states to 40439 states and 89324 transitions. [2022-04-18 19:13:11,073 INFO L78 Accepts]: Start accepts. Automaton has 40439 states and 89324 transitions. Word has length 38 [2022-04-18 19:13:11,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:13:11,073 INFO L478 AbstractCegarLoop]: Abstraction has 40439 states and 89324 transitions. [2022-04-18 19:13:11,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.375) internal successors, (38), 16 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:11,073 INFO L276 IsEmpty]: Start isEmpty. Operand 40439 states and 89324 transitions. [2022-04-18 19:13:11,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:13:11,083 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:11,083 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:13:11,083 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-04-18 19:13:11,083 INFO L403 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:13:11,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1929424788, now seen corresponding path program 9 times [2022-04-18 19:13:11,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:11,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963714646] [2022-04-18 19:13:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:11,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:13:12,265 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 19:13:12,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:13:12,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963714646] [2022-04-18 19:13:12,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963714646] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:13:12,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:13:12,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:13:12,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641196636] [2022-04-18 19:13:12,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:13:12,266 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:13:12,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:13:12,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:13:12,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:13:12,266 INFO L87 Difference]: Start difference. First operand 40439 states and 89324 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:15,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:13:15,341 INFO L93 Difference]: Finished difference Result 45925 states and 100696 transitions. [2022-04-18 19:13:15,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-18 19:13:15,342 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:13:15,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:13:15,435 INFO L225 Difference]: With dead ends: 45925 [2022-04-18 19:13:15,436 INFO L226 Difference]: Without dead ends: 45925 [2022-04-18 19:13:15,436 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2022-04-18 19:13:15,436 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 653 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 4678 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 4800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 4678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:13:15,436 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 970 Invalid, 4800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 4678 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-18 19:13:15,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45925 states. [2022-04-18 19:13:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45925 to 40705. [2022-04-18 19:13:16,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40705 states, 40662 states have (on average 2.2101470660567606) internal successors, (89869), 40704 states have internal predecessors, (89869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40705 states to 40705 states and 89869 transitions. [2022-04-18 19:13:16,103 INFO L78 Accepts]: Start accepts. Automaton has 40705 states and 89869 transitions. Word has length 38 [2022-04-18 19:13:16,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:13:16,103 INFO L478 AbstractCegarLoop]: Abstraction has 40705 states and 89869 transitions. [2022-04-18 19:13:16,103 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 40705 states and 89869 transitions. [2022-04-18 19:13:16,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:13:16,113 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:16,113 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:13:16,113 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-04-18 19:13:16,113 INFO L403 AbstractCegarLoop]: === Iteration 159 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:13:16,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:16,114 INFO L85 PathProgramCache]: Analyzing trace with hash 951014316, now seen corresponding path program 4 times [2022-04-18 19:13:16,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:16,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906341629] [2022-04-18 19:13:16,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:16,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:13:16,360 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 19:13:16,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:13:16,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906341629] [2022-04-18 19:13:16,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906341629] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:13:16,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:13:16,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:13:16,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130600809] [2022-04-18 19:13:16,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:13:16,362 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:13:16,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:13:16,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:13:16,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:13:16,363 INFO L87 Difference]: Start difference. First operand 40705 states and 89869 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:19,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:13:19,424 INFO L93 Difference]: Finished difference Result 47673 states and 104269 transitions. [2022-04-18 19:13:19,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-04-18 19:13:19,432 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:13:19,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:13:19,553 INFO L225 Difference]: With dead ends: 47673 [2022-04-18 19:13:19,553 INFO L226 Difference]: Without dead ends: 47673 [2022-04-18 19:13:19,553 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=358, Invalid=902, Unknown=0, NotChecked=0, Total=1260 [2022-04-18 19:13:19,554 INFO L913 BasicCegarLoop]: 160 mSDtfsCounter, 636 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 3649 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 3649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:13:19,554 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 623 Invalid, 4084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 3649 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 19:13:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47673 states. [2022-04-18 19:13:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47673 to 39960. [2022-04-18 19:13:20,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39960 states, 39917 states have (on average 2.2123155547761604) internal successors, (88309), 39959 states have internal predecessors, (88309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:20,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39960 states to 39960 states and 88309 transitions. [2022-04-18 19:13:20,523 INFO L78 Accepts]: Start accepts. Automaton has 39960 states and 88309 transitions. Word has length 38 [2022-04-18 19:13:20,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:13:20,523 INFO L478 AbstractCegarLoop]: Abstraction has 39960 states and 88309 transitions. [2022-04-18 19:13:20,523 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 39960 states and 88309 transitions. [2022-04-18 19:13:20,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:13:20,534 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:20,534 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:13:20,534 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-04-18 19:13:20,534 INFO L403 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:13:20,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:20,534 INFO L85 PathProgramCache]: Analyzing trace with hash -332733296, now seen corresponding path program 10 times [2022-04-18 19:13:20,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:20,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909101302] [2022-04-18 19:13:20,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:20,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:13:21,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:13:21,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:13:21,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909101302] [2022-04-18 19:13:21,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909101302] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:13:21,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:13:21,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:13:21,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825619008] [2022-04-18 19:13:21,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:13:21,693 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:13:21,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:13:21,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:13:21,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:13:21,693 INFO L87 Difference]: Start difference. First operand 39960 states and 88309 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:24,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:13:24,066 INFO L93 Difference]: Finished difference Result 43489 states and 95592 transitions. [2022-04-18 19:13:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:13:24,067 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:13:24,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:13:24,160 INFO L225 Difference]: With dead ends: 43489 [2022-04-18 19:13:24,160 INFO L226 Difference]: Without dead ends: 43489 [2022-04-18 19:13:24,160 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:13:24,160 INFO L913 BasicCegarLoop]: 161 mSDtfsCounter, 665 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 3189 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 3334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 3189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:13:24,160 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [665 Valid, 758 Invalid, 3334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 3189 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-18 19:13:24,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43489 states. [2022-04-18 19:13:24,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43489 to 40260. [2022-04-18 19:13:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40260 states, 40217 states have (on average 2.211055026481339) internal successors, (88922), 40259 states have internal predecessors, (88922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:24,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40260 states to 40260 states and 88922 transitions. [2022-04-18 19:13:24,906 INFO L78 Accepts]: Start accepts. Automaton has 40260 states and 88922 transitions. Word has length 38 [2022-04-18 19:13:24,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:13:24,906 INFO L478 AbstractCegarLoop]: Abstraction has 40260 states and 88922 transitions. [2022-04-18 19:13:24,906 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 40260 states and 88922 transitions. [2022-04-18 19:13:24,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:13:24,916 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:24,916 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:13:24,916 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-04-18 19:13:24,916 INFO L403 AbstractCegarLoop]: === Iteration 161 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:13:24,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash 941164222, now seen corresponding path program 5 times [2022-04-18 19:13:24,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:24,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475738157] [2022-04-18 19:13:24,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:24,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:13:25,147 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 19:13:25,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:13:25,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475738157] [2022-04-18 19:13:25,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475738157] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:13:25,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:13:25,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:13:25,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394747248] [2022-04-18 19:13:25,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:13:25,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:13:25,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:13:25,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:13:25,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:13:25,148 INFO L87 Difference]: Start difference. First operand 40260 states and 88922 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:28,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:13:28,156 INFO L93 Difference]: Finished difference Result 46884 states and 102569 transitions. [2022-04-18 19:13:28,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-18 19:13:28,156 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:13:28,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:13:28,259 INFO L225 Difference]: With dead ends: 46884 [2022-04-18 19:13:28,259 INFO L226 Difference]: Without dead ends: 46884 [2022-04-18 19:13:28,259 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=441, Invalid=1119, Unknown=0, NotChecked=0, Total=1560 [2022-04-18 19:13:28,259 INFO L913 BasicCegarLoop]: 91 mSDtfsCounter, 561 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 2787 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 3485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 2787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:13:28,259 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 494 Invalid, 3485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 2787 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 19:13:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46884 states. [2022-04-18 19:13:28,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46884 to 39726. [2022-04-18 19:13:29,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39726 states, 39683 states have (on average 2.212559534309402) internal successors, (87801), 39725 states have internal predecessors, (87801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:29,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39726 states to 39726 states and 87801 transitions. [2022-04-18 19:13:29,112 INFO L78 Accepts]: Start accepts. Automaton has 39726 states and 87801 transitions. Word has length 38 [2022-04-18 19:13:29,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:13:29,112 INFO L478 AbstractCegarLoop]: Abstraction has 39726 states and 87801 transitions. [2022-04-18 19:13:29,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:29,112 INFO L276 IsEmpty]: Start isEmpty. Operand 39726 states and 87801 transitions. [2022-04-18 19:13:29,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 19:13:29,123 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:13:29,123 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, 1, 1, 1, 1, 1, 1] [2022-04-18 19:13:29,124 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-04-18 19:13:29,124 INFO L403 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 19:13:29,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:13:29,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1709301406, now seen corresponding path program 11 times [2022-04-18 19:13:29,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:13:29,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452273814] [2022-04-18 19:13:29,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:13:29,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:13:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:13:30,497 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 19:13:30,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:13:30,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452273814] [2022-04-18 19:13:30,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452273814] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:13:30,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:13:30,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-18 19:13:30,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569830223] [2022-04-18 19:13:30,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:13:30,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 19:13:30,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:13:30,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 19:13:30,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-04-18 19:13:30,498 INFO L87 Difference]: Start difference. First operand 39726 states and 87801 transitions. Second operand has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:13:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:13:32,944 INFO L93 Difference]: Finished difference Result 42842 states and 94216 transitions. [2022-04-18 19:13:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-18 19:13:32,944 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-04-18 19:13:32,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:13:33,041 INFO L225 Difference]: With dead ends: 42842 [2022-04-18 19:13:33,041 INFO L226 Difference]: Without dead ends: 42842 [2022-04-18 19:13:33,042 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2022-04-18 19:13:33,042 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 639 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 3050 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 3180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 3050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 19:13:33,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 914 Invalid, 3180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 3050 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] Killed by 15