./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.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/barrier_2t.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 f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:56:41,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:56:41,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:56:41,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:56:41,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:56:41,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:56:41,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:56:41,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:56:41,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:56:41,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:56:41,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:56:41,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:56:41,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:56:41,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:56:41,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:56:41,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:56:41,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:56:41,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:56:41,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:56:41,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:56:41,728 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:56:41,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:56:41,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:56:41,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:56:41,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:56:41,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:56:41,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:56:41,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:56:41,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:56:41,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:56:41,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:56:41,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:56:41,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:56:41,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:56:41,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:56:41,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:56:41,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:56:41,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:56:41,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:56:41,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:56:41,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:56:41,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:56:41,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:56:41,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:56:41,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:56:41,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:56:41,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:56:41,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:56:41,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:56:41,774 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:56:41,774 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:56:41,774 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:56:41,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:56:41,775 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:56:41,775 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:56:41,776 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:56:41,776 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:56:41,776 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:56:41,776 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:56:41,776 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:56:41,776 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:56:41,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:56:41,777 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:56:41,778 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:56:41,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:56:41,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:56:41,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:56:41,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:56:41,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:56:41,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:56:41,779 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:56:41,780 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:56:41,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:56:41,780 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:56:41,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:56:41,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:56:41,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:56:41,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:56:41,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:56:41,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:56:41,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:56:41,781 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:56:41,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:56:41,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:56:41,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:56:41,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:56:41,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2022-04-18 18:56:41,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:56:41,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:56:41,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:56:41,985 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:56:41,985 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:56:41,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i [2022-04-18 18:56:42,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/502196ab8/0cbd4d64fb1346eab1fb7787fc1b958d/FLAG3b574781c [2022-04-18 18:56:42,403 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:56:42,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/barrier_2t.i [2022-04-18 18:56:42,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/502196ab8/0cbd4d64fb1346eab1fb7787fc1b958d/FLAG3b574781c [2022-04-18 18:56:42,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/502196ab8/0cbd4d64fb1346eab1fb7787fc1b958d [2022-04-18 18:56:42,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:56:42,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:56:42,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:56:42,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:56:42,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:56:42,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:56:42" (1/1) ... [2022-04-18 18:56:42,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ce0dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:42, skipping insertion in model container [2022-04-18 18:56:42,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:56:42" (1/1) ... [2022-04-18 18:56:42,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:56:42,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:56:42,960 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 18:56:43,055 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/barrier_2t.i[30484,30497] [2022-04-18 18:56:43,080 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/barrier_2t.i[31858,31871] [2022-04-18 18:56:43,081 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/barrier_2t.i[31909,31922] [2022-04-18 18:56:43,083 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/barrier_2t.i[32058,32071] [2022-04-18 18:56:43,092 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/barrier_2t.i[32135,32148] [2022-04-18 18:56:43,093 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/barrier_2t.i[32182,32195] [2022-04-18 18:56:43,097 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/barrier_2t.i[32291,32304] [2022-04-18 18:56:43,098 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/barrier_2t.i[32410,32423] [2022-04-18 18:56:43,102 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/barrier_2t.i[32458,32471] [2022-04-18 18:56:43,103 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/barrier_2t.i[32535,32548] [2022-04-18 18:56:43,104 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/barrier_2t.i[32661,32674] [2022-04-18 18:56:43,111 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/barrier_2t.i[33244,33257] [2022-04-18 18:56:43,114 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/barrier_2t.i[33321,33334] [2022-04-18 18:56:43,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:56:43,120 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:56:43,133 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-04-18 18:56:43,145 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/barrier_2t.i[30484,30497] [2022-04-18 18:56:43,156 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/barrier_2t.i[31858,31871] [2022-04-18 18:56:43,157 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/barrier_2t.i[31909,31922] [2022-04-18 18:56:43,158 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/barrier_2t.i[32058,32071] [2022-04-18 18:56:43,158 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/barrier_2t.i[32135,32148] [2022-04-18 18:56:43,159 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/barrier_2t.i[32182,32195] [2022-04-18 18:56:43,160 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/barrier_2t.i[32291,32304] [2022-04-18 18:56:43,161 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/barrier_2t.i[32410,32423] [2022-04-18 18:56:43,162 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/barrier_2t.i[32458,32471] [2022-04-18 18:56:43,162 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/barrier_2t.i[32535,32548] [2022-04-18 18:56:43,163 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/barrier_2t.i[32661,32674] [2022-04-18 18:56:43,168 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/barrier_2t.i[33244,33257] [2022-04-18 18:56:43,171 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/barrier_2t.i[33321,33334] [2022-04-18 18:56:43,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:56:43,192 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:56:43,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43 WrapperNode [2022-04-18 18:56:43,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:56:43,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:56:43,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:56:43,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:56:43,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,287 INFO L137 Inliner]: procedures = 174, calls = 78, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 950 [2022-04-18 18:56:43,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:56:43,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:56:43,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:56:43,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:56:43,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:56:43,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:56:43,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:56:43,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:56:43,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (1/1) ... [2022-04-18 18:56:43,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:56:43,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:56:43,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:56:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:56:43,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-04-18 18:56:43,456 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-04-18 18:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:56:43,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:56:43,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:56:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:56:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:56:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:56:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:56:43,469 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:56:43,630 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:56:43,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:56:44,556 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:56:44,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:56:44,590 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-04-18 18:56:44,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:56:44 BoogieIcfgContainer [2022-04-18 18:56:44,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:56:44,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:56:44,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:56:44,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:56:44,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:56:42" (1/3) ... [2022-04-18 18:56:44,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532d7211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:56:44, skipping insertion in model container [2022-04-18 18:56:44,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:56:43" (2/3) ... [2022-04-18 18:56:44,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532d7211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:56:44, skipping insertion in model container [2022-04-18 18:56:44,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:56:44" (3/3) ... [2022-04-18 18:56:44,601 INFO L111 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2022-04-18 18:56:44,605 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:56:44,605 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:56:44,605 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2022-04-18 18:56:44,605 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:56:44,728 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:56:44,777 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:56:44,782 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 18:56:44,782 INFO L341 AbstractCegarLoop]: Starting to check reachability of 143 error locations. [2022-04-18 18:56:44,801 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:56:44,811 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1018 places, 1085 transitions, 2178 flow [2022-04-18 18:56:44,813 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 1018 places, 1085 transitions, 2178 flow [2022-04-18 18:56:44,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 1018 places, 1085 transitions, 2178 flow [2022-04-18 18:56:45,300 INFO L129 PetriNetUnfolder]: 106/1593 cut-off events. [2022-04-18 18:56:45,300 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:56:45,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 1593 events. 106/1593 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6065 event pairs, 0 based on Foata normal form. 0/1339 useless extension candidates. Maximal degree in co-relation 964. Up to 4 conditions per place. [2022-04-18 18:56:45,468 INFO L116 LiptonReduction]: Number of co-enabled transitions 463628 [2022-04-18 19:00:30,313 WARN L232 SmtUtils]: Spent 13.30s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:00:38,797 WARN L232 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:00:54,528 WARN L232 SmtUtils]: Spent 15.73s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:01:04,199 WARN L232 SmtUtils]: Spent 9.67s on a formula simplification that was a NOOP. DAG size: 159 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:01:04,653 INFO L131 LiptonReduction]: Checked pairs total: 3180929 [2022-04-18 19:01:04,653 INFO L133 LiptonReduction]: Total number of compositions: 692 [2022-04-18 19:01:04,660 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 542 places, 583 transitions, 1174 flow [2022-04-18 19:01:06,306 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70425 states, 68121 states have (on average 2.2197119830889154) internal successors, (151209), 70424 states have internal predecessors, (151209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 70425 states, 68121 states have (on average 2.2197119830889154) internal successors, (151209), 70424 states have internal predecessors, (151209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:06,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-04-18 19:01:06,390 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:06,391 INFO L499 BasicCegarLoop]: trace histogram [1, 1] [2022-04-18 19:01:06,391 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash 116410, now seen corresponding path program 1 times [2022-04-18 19:01:06,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:06,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773224701] [2022-04-18 19:01:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:06,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 19:01:06,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:06,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773224701] [2022-04-18 19:01:06,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773224701] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:06,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:06,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:01:06,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383378481] [2022-04-18 19:01:06,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:06,538 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:01:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:06,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:01:06,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:01:06,639 INFO L87 Difference]: Start difference. First operand has 70425 states, 68121 states have (on average 2.2197119830889154) internal successors, (151209), 70424 states have internal predecessors, (151209), 0 states have call successors, (0), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:08,087 INFO L93 Difference]: Finished difference Result 70418 states and 146663 transitions. [2022-04-18 19:01:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:01:08,089 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-04-18 19:01:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:08,360 INFO L225 Difference]: With dead ends: 70418 [2022-04-18 19:01:08,360 INFO L226 Difference]: Without dead ends: 70416 [2022-04-18 19:01:08,362 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 19:01:08,370 INFO L913 BasicCegarLoop]: 352 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:08,372 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-18 19:01:08,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70416 states. [2022-04-18 19:01:09,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70416 to 70416. [2022-04-18 19:01:09,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70416 states, 68121 states have (on average 2.152933750238546) internal successors, (146660), 70415 states have internal predecessors, (146660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70416 states to 70416 states and 146660 transitions. [2022-04-18 19:01:10,148 INFO L78 Accepts]: Start accepts. Automaton has 70416 states and 146660 transitions. Word has length 2 [2022-04-18 19:01:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:10,148 INFO L478 AbstractCegarLoop]: Abstraction has 70416 states and 146660 transitions. [2022-04-18 19:01:10,148 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 70416 states and 146660 transitions. [2022-04-18 19:01:10,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 19:01:10,149 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:10,149 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-04-18 19:01:10,149 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:01:10,150 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:10,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:10,150 INFO L85 PathProgramCache]: Analyzing trace with hash -805394782, now seen corresponding path program 1 times [2022-04-18 19:01:10,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:10,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346458687] [2022-04-18 19:01:10,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:10,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:01:10,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:10,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346458687] [2022-04-18 19:01:10,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346458687] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:10,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:10,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:01:10,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480703825] [2022-04-18 19:01:10,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:10,226 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:01:10,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:10,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:01:10,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:01:10,227 INFO L87 Difference]: Start difference. First operand 70416 states and 146660 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:11,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:11,805 INFO L93 Difference]: Finished difference Result 70417 states and 146661 transitions. [2022-04-18 19:01:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:01:11,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-04-18 19:01:11,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:12,001 INFO L225 Difference]: With dead ends: 70417 [2022-04-18 19:01:12,001 INFO L226 Difference]: Without dead ends: 70417 [2022-04-18 19:01:12,002 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:01:12,002 INFO L913 BasicCegarLoop]: 352 mSDtfsCounter, 0 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:12,003 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 704 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:01:12,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70417 states. [2022-04-18 19:01:13,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70417 to 70417. [2022-04-18 19:01:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70417 states, 68122 states have (on average 2.1529168256950766) internal successors, (146661), 70416 states have internal predecessors, (146661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:13,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70417 states to 70417 states and 146661 transitions. [2022-04-18 19:01:13,432 INFO L78 Accepts]: Start accepts. Automaton has 70417 states and 146661 transitions. Word has length 7 [2022-04-18 19:01:13,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:13,432 INFO L478 AbstractCegarLoop]: Abstraction has 70417 states and 146661 transitions. [2022-04-18 19:01:13,432 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:13,432 INFO L276 IsEmpty]: Start isEmpty. Operand 70417 states and 146661 transitions. [2022-04-18 19:01:13,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 19:01:13,433 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:13,433 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:13,433 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:01:13,433 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:13,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:13,434 INFO L85 PathProgramCache]: Analyzing trace with hash 309426161, now seen corresponding path program 1 times [2022-04-18 19:01:13,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:13,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823911326] [2022-04-18 19:01:13,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:13,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:13,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:01:13,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:13,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823911326] [2022-04-18 19:01:13,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823911326] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 19:01:13,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456699707] [2022-04-18 19:01:13,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:13,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:01:13,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:01:13,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 19:01:13,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 19:01:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:13,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 19:01:13,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:01:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:01:13,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 19:01:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 19:01:13,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456699707] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 19:01:13,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [804894136] [2022-04-18 19:01:13,960 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 19:01:13,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 19:01:13,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2022-04-18 19:01:13,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498347404] [2022-04-18 19:01:13,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 19:01:13,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 19:01:13,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:13,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 19:01:13,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 19:01:13,964 INFO L87 Difference]: Start difference. First operand 70417 states and 146661 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 19:01:15,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:15,114 INFO L93 Difference]: Finished difference Result 70418 states and 146662 transitions. [2022-04-18 19:01:15,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 19:01:15,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 8 [2022-04-18 19:01:15,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:15,319 INFO L225 Difference]: With dead ends: 70418 [2022-04-18 19:01:15,319 INFO L226 Difference]: Without dead ends: 70418 [2022-04-18 19:01:15,319 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 19:01:15,320 INFO L913 BasicCegarLoop]: 352 mSDtfsCounter, 0 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:15,320 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1056 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:01:15,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70418 states. [2022-04-18 19:01:16,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70418 to 70418. [2022-04-18 19:01:16,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70418 states, 68123 states have (on average 2.152899901648489) internal successors, (146662), 70417 states have internal predecessors, (146662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70418 states to 70418 states and 146662 transitions. [2022-04-18 19:01:16,708 INFO L78 Accepts]: Start accepts. Automaton has 70418 states and 146662 transitions. Word has length 8 [2022-04-18 19:01:16,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:16,708 INFO L478 AbstractCegarLoop]: Abstraction has 70418 states and 146662 transitions. [2022-04-18 19:01:16,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 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 19:01:16,708 INFO L276 IsEmpty]: Start isEmpty. Operand 70418 states and 146662 transitions. [2022-04-18 19:01:16,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 19:01:16,709 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:16,709 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-04-18 19:01:16,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 19:01:16,909 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:01:16,910 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:16,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:16,914 INFO L85 PathProgramCache]: Analyzing trace with hash 509137026, now seen corresponding path program 2 times [2022-04-18 19:01:16,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:16,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374258567] [2022-04-18 19:01:16,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:16,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:01:16,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:16,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374258567] [2022-04-18 19:01:17,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374258567] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 19:01:17,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466100496] [2022-04-18 19:01:17,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-18 19:01:17,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:01:17,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:01:17,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 19:01:17,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 19:01:17,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-04-18 19:01:17,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 19:01:17,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 19:01:17,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:01:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:01:17,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 19:01:17,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466100496] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:17,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 19:01:17,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-04-18 19:01:17,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789654146] [2022-04-18 19:01:17,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:17,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 19:01:17,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:17,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 19:01:17,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 19:01:17,415 INFO L87 Difference]: Start difference. First operand 70418 states and 146662 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:18,526 INFO L93 Difference]: Finished difference Result 69906 states and 145616 transitions. [2022-04-18 19:01:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 19:01:18,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have 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 19:01:18,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:18,702 INFO L225 Difference]: With dead ends: 69906 [2022-04-18 19:01:18,703 INFO L226 Difference]: Without dead ends: 69906 [2022-04-18 19:01:18,703 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 19:01:18,706 INFO L913 BasicCegarLoop]: 520 mSDtfsCounter, 1103 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:18,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 689 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 19:01:18,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69906 states. [2022-04-18 19:01:20,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69906 to 69906. [2022-04-18 19:01:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69906 states, 67656 states have (on average 2.152299869930235) internal successors, (145616), 69905 states have internal predecessors, (145616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69906 states to 69906 states and 145616 transitions. [2022-04-18 19:01:20,796 INFO L78 Accepts]: Start accepts. Automaton has 69906 states and 145616 transitions. Word has length 9 [2022-04-18 19:01:20,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:20,796 INFO L478 AbstractCegarLoop]: Abstraction has 69906 states and 145616 transitions. [2022-04-18 19:01:20,796 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand 69906 states and 145616 transitions. [2022-04-18 19:01:20,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:01:20,797 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:20,797 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:20,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-04-18 19:01:21,003 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:01:21,004 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:21,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:21,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1078903692, now seen corresponding path program 1 times [2022-04-18 19:01:21,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:21,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271675767] [2022-04-18 19:01:21,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:21,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:01:21,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:21,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271675767] [2022-04-18 19:01:21,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271675767] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:21,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:21,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 19:01:21,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771072486] [2022-04-18 19:01:21,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:21,088 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:01:21,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:21,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:01:21,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:01:21,089 INFO L87 Difference]: Start difference. First operand 69906 states and 145616 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 19:01:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:22,025 INFO L93 Difference]: Finished difference Result 69653 states and 145350 transitions. [2022-04-18 19:01:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:01:22,025 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 10 [2022-04-18 19:01:22,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:22,238 INFO L225 Difference]: With dead ends: 69653 [2022-04-18 19:01:22,239 INFO L226 Difference]: Without dead ends: 69653 [2022-04-18 19:01:22,239 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 19:01:22,244 INFO L913 BasicCegarLoop]: 351 mSDtfsCounter, 269 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:22,245 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 702 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-18 19:01:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69653 states. [2022-04-18 19:01:23,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69653 to 69653. [2022-04-18 19:01:23,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69653 states, 67447 states have (on average 2.1550254273726037) internal successors, (145350), 69652 states have internal predecessors, (145350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69653 states to 69653 states and 145350 transitions. [2022-04-18 19:01:24,131 INFO L78 Accepts]: Start accepts. Automaton has 69653 states and 145350 transitions. Word has length 10 [2022-04-18 19:01:24,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:24,131 INFO L478 AbstractCegarLoop]: Abstraction has 69653 states and 145350 transitions. [2022-04-18 19:01:24,132 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 19:01:24,132 INFO L276 IsEmpty]: Start isEmpty. Operand 69653 states and 145350 transitions. [2022-04-18 19:01:24,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 19:01:24,132 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:24,132 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:24,133 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:01:24,133 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:24,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:24,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1356925010, now seen corresponding path program 1 times [2022-04-18 19:01:24,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:24,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83837972] [2022-04-18 19:01:24,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:24,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:24,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:01:24,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:24,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83837972] [2022-04-18 19:01:24,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83837972] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:24,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:24,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:01:24,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368752532] [2022-04-18 19:01:24,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:24,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:01:24,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:24,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:01:24,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:01:24,293 INFO L87 Difference]: Start difference. First operand 69653 states and 145350 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:28,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:28,350 INFO L93 Difference]: Finished difference Result 71215 states and 148546 transitions. [2022-04-18 19:01:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:01:28,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-04-18 19:01:28,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:28,510 INFO L225 Difference]: With dead ends: 71215 [2022-04-18 19:01:28,511 INFO L226 Difference]: Without dead ends: 71215 [2022-04-18 19:01:28,511 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 19:01:28,512 INFO L913 BasicCegarLoop]: 396 mSDtfsCounter, 688 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 4301 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 4594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 4301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:28,512 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [688 Valid, 528 Invalid, 4594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 4301 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-04-18 19:01:28,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71215 states. [2022-04-18 19:01:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71215 to 70691. [2022-04-18 19:01:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70691 states, 68486 states have (on average 2.153345209239845) internal successors, (147474), 70690 states have internal predecessors, (147474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70691 states to 70691 states and 147474 transitions. [2022-04-18 19:01:29,909 INFO L78 Accepts]: Start accepts. Automaton has 70691 states and 147474 transitions. Word has length 12 [2022-04-18 19:01:29,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:29,911 INFO L478 AbstractCegarLoop]: Abstraction has 70691 states and 147474 transitions. [2022-04-18 19:01:29,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:29,911 INFO L276 IsEmpty]: Start isEmpty. Operand 70691 states and 147474 transitions. [2022-04-18 19:01:29,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-18 19:01:29,912 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:29,912 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:29,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 19:01:29,912 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:29,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:29,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1184804387, now seen corresponding path program 1 times [2022-04-18 19:01:29,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:29,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316987636] [2022-04-18 19:01:29,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:29,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:30,003 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-18 19:01:30,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:30,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316987636] [2022-04-18 19:01:30,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316987636] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:30,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:30,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:01:30,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633551405] [2022-04-18 19:01:30,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:30,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:01:30,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:30,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:01:30,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:01:30,005 INFO L87 Difference]: Start difference. First operand 70691 states and 147474 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:33,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:33,254 INFO L93 Difference]: Finished difference Result 72165 states and 150488 transitions. [2022-04-18 19:01:33,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:01:33,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-04-18 19:01:33,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:33,393 INFO L225 Difference]: With dead ends: 72165 [2022-04-18 19:01:33,393 INFO L226 Difference]: Without dead ends: 72165 [2022-04-18 19:01:33,393 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 19:01:33,394 INFO L913 BasicCegarLoop]: 416 mSDtfsCounter, 640 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 3424 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 3694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 3424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:33,394 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [640 Valid, 542 Invalid, 3694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 3424 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-04-18 19:01:33,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72165 states. [2022-04-18 19:01:34,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72165 to 71671. [2022-04-18 19:01:34,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71671 states, 69466 states have (on average 2.1518152765381626) internal successors, (149478), 71670 states have internal predecessors, (149478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71671 states to 71671 states and 149478 transitions. [2022-04-18 19:01:34,716 INFO L78 Accepts]: Start accepts. Automaton has 71671 states and 149478 transitions. Word has length 13 [2022-04-18 19:01:34,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:34,716 INFO L478 AbstractCegarLoop]: Abstraction has 71671 states and 149478 transitions. [2022-04-18 19:01:34,716 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:34,716 INFO L276 IsEmpty]: Start isEmpty. Operand 71671 states and 149478 transitions. [2022-04-18 19:01:34,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 19:01:34,717 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:34,717 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:34,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 19:01:34,717 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting worker_fnErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:34,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:34,718 INFO L85 PathProgramCache]: Analyzing trace with hash 99695249, now seen corresponding path program 1 times [2022-04-18 19:01:34,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:34,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680549046] [2022-04-18 19:01:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:34,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:01:34,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:34,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680549046] [2022-04-18 19:01:34,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680549046] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:34,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:34,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:01:34,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577198383] [2022-04-18 19:01:34,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:34,762 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:01:34,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:34,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:01:34,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:01:34,762 INFO L87 Difference]: Start difference. First operand 71671 states and 149478 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:36,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:36,331 INFO L93 Difference]: Finished difference Result 71935 states and 150018 transitions. [2022-04-18 19:01:36,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:01:36,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-04-18 19:01:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:36,489 INFO L225 Difference]: With dead ends: 71935 [2022-04-18 19:01:36,489 INFO L226 Difference]: Without dead ends: 71935 [2022-04-18 19:01:36,489 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:01:36,490 INFO L913 BasicCegarLoop]: 362 mSDtfsCounter, 171 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:36,490 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 390 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:01:36,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71935 states. [2022-04-18 19:01:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71935 to 71935. [2022-04-18 19:01:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71935 states, 69730 states have (on average 2.151412591424064) internal successors, (150018), 71934 states have internal predecessors, (150018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71935 states to 71935 states and 150018 transitions. [2022-04-18 19:01:37,966 INFO L78 Accepts]: Start accepts. Automaton has 71935 states and 150018 transitions. Word has length 15 [2022-04-18 19:01:37,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:37,966 INFO L478 AbstractCegarLoop]: Abstraction has 71935 states and 150018 transitions. [2022-04-18 19:01:37,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 71935 states and 150018 transitions. [2022-04-18 19:01:37,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 19:01:37,971 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:37,971 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:37,971 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 19:01:37,971 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:37,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash 518714713, now seen corresponding path program 1 times [2022-04-18 19:01:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:37,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040372546] [2022-04-18 19:01:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:37,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-18 19:01:38,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:38,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040372546] [2022-04-18 19:01:38,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040372546] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:38,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:38,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:01:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289624988] [2022-04-18 19:01:38,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:38,026 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:01:38,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:38,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:01:38,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:01:38,027 INFO L87 Difference]: Start difference. First operand 71935 states and 150018 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:39,395 INFO L93 Difference]: Finished difference Result 72181 states and 150521 transitions. [2022-04-18 19:01:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:01:39,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-04-18 19:01:39,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:39,862 INFO L225 Difference]: With dead ends: 72181 [2022-04-18 19:01:39,875 INFO L226 Difference]: Without dead ends: 72181 [2022-04-18 19:01:39,875 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:01:39,876 INFO L913 BasicCegarLoop]: 367 mSDtfsCounter, 160 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:39,876 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 395 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:01:39,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72181 states. [2022-04-18 19:01:40,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72181 to 72181. [2022-04-18 19:01:41,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72181 states, 69977 states have (on average 2.151006759363791) internal successors, (150521), 72180 states have internal predecessors, (150521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:41,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72181 states to 72181 states and 150521 transitions. [2022-04-18 19:01:41,197 INFO L78 Accepts]: Start accepts. Automaton has 72181 states and 150521 transitions. Word has length 16 [2022-04-18 19:01:41,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:41,197 INFO L478 AbstractCegarLoop]: Abstraction has 72181 states and 150521 transitions. [2022-04-18 19:01:41,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:41,197 INFO L276 IsEmpty]: Start isEmpty. Operand 72181 states and 150521 transitions. [2022-04-18 19:01:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 19:01:41,198 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:41,198 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:41,198 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 19:01:41,198 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:41,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:41,199 INFO L85 PathProgramCache]: Analyzing trace with hash 270434393, now seen corresponding path program 1 times [2022-04-18 19:01:41,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:41,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225500863] [2022-04-18 19:01:41,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:41,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:41,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:01:41,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:41,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225500863] [2022-04-18 19:01:41,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225500863] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:41,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:41,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 19:01:41,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977219619] [2022-04-18 19:01:41,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:41,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 19:01:41,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:41,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 19:01:41,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-04-18 19:01:41,335 INFO L87 Difference]: Start difference. First operand 72181 states and 150521 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:44,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:44,533 INFO L93 Difference]: Finished difference Result 72188 states and 150535 transitions. [2022-04-18 19:01:44,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 19:01:44,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-04-18 19:01:44,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:44,944 INFO L225 Difference]: With dead ends: 72188 [2022-04-18 19:01:44,944 INFO L226 Difference]: Without dead ends: 72188 [2022-04-18 19:01:44,945 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-04-18 19:01:44,945 INFO L913 BasicCegarLoop]: 503 mSDtfsCounter, 2911 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 3600 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 3616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:44,946 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2911 Valid, 977 Invalid, 3616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3600 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-18 19:01:45,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72188 states. [2022-04-18 19:01:46,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72188 to 72186. [2022-04-18 19:01:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72186 states, 69982 states have (on average 2.1509959703923864) internal successors, (150531), 72185 states have internal predecessors, (150531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:46,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72186 states to 72186 states and 150531 transitions. [2022-04-18 19:01:46,449 INFO L78 Accepts]: Start accepts. Automaton has 72186 states and 150531 transitions. Word has length 18 [2022-04-18 19:01:46,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:46,449 INFO L478 AbstractCegarLoop]: Abstraction has 72186 states and 150531 transitions. [2022-04-18 19:01:46,449 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:46,449 INFO L276 IsEmpty]: Start isEmpty. Operand 72186 states and 150531 transitions. [2022-04-18 19:01:46,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 19:01:46,450 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:46,450 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:46,450 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 19:01:46,450 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:46,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash 278910413, now seen corresponding path program 2 times [2022-04-18 19:01:46,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:46,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371919262] [2022-04-18 19:01:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:01:46,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:46,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371919262] [2022-04-18 19:01:46,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371919262] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:46,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:46,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 19:01:46,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49993358] [2022-04-18 19:01:46,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:46,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 19:01:46,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:46,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 19:01:46,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-18 19:01:46,594 INFO L87 Difference]: Start difference. First operand 72186 states and 150531 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:49,322 INFO L93 Difference]: Finished difference Result 72192 states and 150543 transitions. [2022-04-18 19:01:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 19:01:49,322 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-04-18 19:01:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:49,471 INFO L225 Difference]: With dead ends: 72192 [2022-04-18 19:01:49,471 INFO L226 Difference]: Without dead ends: 72192 [2022-04-18 19:01:49,471 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2022-04-18 19:01:49,475 INFO L913 BasicCegarLoop]: 634 mSDtfsCounter, 3329 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3329 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:49,475 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3329 Valid, 1291 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-18 19:01:49,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72192 states. [2022-04-18 19:01:50,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72192 to 72165. [2022-04-18 19:01:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72165 states, 69962 states have (on average 2.1510105485835167) internal successors, (150489), 72164 states have internal predecessors, (150489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72165 states to 72165 states and 150489 transitions. [2022-04-18 19:01:51,026 INFO L78 Accepts]: Start accepts. Automaton has 72165 states and 150489 transitions. Word has length 18 [2022-04-18 19:01:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:51,026 INFO L478 AbstractCegarLoop]: Abstraction has 72165 states and 150489 transitions. [2022-04-18 19:01:51,026 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand 72165 states and 150489 transitions. [2022-04-18 19:01:51,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 19:01:51,027 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:51,027 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:51,027 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 19:01:51,027 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting worker_fnErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:51,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1581641193, now seen corresponding path program 1 times [2022-04-18 19:01:51,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:51,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490453962] [2022-04-18 19:01:51,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:51,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:51,117 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-18 19:01:51,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:51,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490453962] [2022-04-18 19:01:51,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490453962] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:51,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:51,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:01:51,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716312953] [2022-04-18 19:01:51,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:51,118 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 19:01:51,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:51,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 19:01:51,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-04-18 19:01:51,119 INFO L87 Difference]: Start difference. First operand 72165 states and 150489 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:53,593 INFO L93 Difference]: Finished difference Result 72171 states and 150501 transitions. [2022-04-18 19:01:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 19:01:53,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-04-18 19:01:53,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:53,769 INFO L225 Difference]: With dead ends: 72171 [2022-04-18 19:01:53,770 INFO L226 Difference]: Without dead ends: 72171 [2022-04-18 19:01:53,770 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-04-18 19:01:53,770 INFO L913 BasicCegarLoop]: 499 mSDtfsCounter, 1529 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:53,770 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1529 Valid, 1075 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-18 19:01:53,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72171 states. [2022-04-18 19:01:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72171 to 72149. [2022-04-18 19:01:55,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72149 states, 69947 states have (on average 2.1510143394284245) internal successors, (150457), 72148 states have internal predecessors, (150457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:55,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72149 states to 72149 states and 150457 transitions. [2022-04-18 19:01:55,583 INFO L78 Accepts]: Start accepts. Automaton has 72149 states and 150457 transitions. Word has length 18 [2022-04-18 19:01:55,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:55,584 INFO L478 AbstractCegarLoop]: Abstraction has 72149 states and 150457 transitions. [2022-04-18 19:01:55,584 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:55,584 INFO L276 IsEmpty]: Start isEmpty. Operand 72149 states and 150457 transitions. [2022-04-18 19:01:55,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 19:01:55,584 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:55,584 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:55,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 19:01:55,585 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting worker_fnErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:55,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:55,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2069174626, now seen corresponding path program 1 times [2022-04-18 19:01:55,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:55,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363357344] [2022-04-18 19:01:55,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:55,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:01:55,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:55,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363357344] [2022-04-18 19:01:55,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363357344] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:55,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:55,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:01:55,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902795017] [2022-04-18 19:01:55,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:55,626 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:01:55,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:55,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:01:55,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:01:55,627 INFO L87 Difference]: Start difference. First operand 72149 states and 150457 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:56,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:01:56,958 INFO L93 Difference]: Finished difference Result 73439 states and 153097 transitions. [2022-04-18 19:01:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:01:56,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-04-18 19:01:56,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:01:57,119 INFO L225 Difference]: With dead ends: 73439 [2022-04-18 19:01:57,120 INFO L226 Difference]: Without dead ends: 73439 [2022-04-18 19:01:57,120 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:01:57,121 INFO L913 BasicCegarLoop]: 359 mSDtfsCounter, 174 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:01:57,121 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 385 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:01:57,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73439 states. [2022-04-18 19:01:58,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73439 to 72393. [2022-04-18 19:01:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72393 states, 70193 states have (on average 2.1505990625845883) internal successors, (150957), 72392 states have internal predecessors, (150957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:58,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72393 states to 72393 states and 150957 transitions. [2022-04-18 19:01:58,494 INFO L78 Accepts]: Start accepts. Automaton has 72393 states and 150957 transitions. Word has length 18 [2022-04-18 19:01:58,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:01:58,494 INFO L478 AbstractCegarLoop]: Abstraction has 72393 states and 150957 transitions. [2022-04-18 19:01:58,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:01:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 72393 states and 150957 transitions. [2022-04-18 19:01:58,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-18 19:01:58,495 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:01:58,495 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:01:58,495 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 19:01:58,495 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:01:58,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:01:58,496 INFO L85 PathProgramCache]: Analyzing trace with hash -205549767, now seen corresponding path program 1 times [2022-04-18 19:01:58,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:01:58,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851100514] [2022-04-18 19:01:58,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:01:58,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:01:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:01:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-18 19:01:58,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:01:58,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851100514] [2022-04-18 19:01:58,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851100514] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:01:58,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:01:58,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 19:01:58,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305994558] [2022-04-18 19:01:58,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:01:58,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 19:01:58,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:01:58,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 19:01:58,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 19:01:58,554 INFO L87 Difference]: Start difference. First operand 72393 states and 150957 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:02:00,104 INFO L93 Difference]: Finished difference Result 73602 states and 153430 transitions. [2022-04-18 19:02:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 19:02:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-04-18 19:02:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:02:00,250 INFO L225 Difference]: With dead ends: 73602 [2022-04-18 19:02:00,251 INFO L226 Difference]: Without dead ends: 73602 [2022-04-18 19:02:00,251 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 19:02:00,251 INFO L913 BasicCegarLoop]: 364 mSDtfsCounter, 163 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 19:02:00,251 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 390 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 19:02:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73602 states. [2022-04-18 19:02:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73602 to 72620. [2022-04-18 19:02:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72620 states, 70423 states have (on average 2.1501782088238217) internal successors, (151422), 72619 states have internal predecessors, (151422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72620 states to 72620 states and 151422 transitions. [2022-04-18 19:02:01,650 INFO L78 Accepts]: Start accepts. Automaton has 72620 states and 151422 transitions. Word has length 19 [2022-04-18 19:02:01,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:02:01,650 INFO L478 AbstractCegarLoop]: Abstraction has 72620 states and 151422 transitions. [2022-04-18 19:02:01,650 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 19:02:01,650 INFO L276 IsEmpty]: Start isEmpty. Operand 72620 states and 151422 transitions. [2022-04-18 19:02:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-18 19:02:01,651 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:02:01,651 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:02:01,651 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 19:02:01,652 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting worker_fnErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-04-18 19:02:01,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:02:01,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1611587175, now seen corresponding path program 1 times [2022-04-18 19:02:01,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:02:01,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644557033] [2022-04-18 19:02:01,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:01,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:02:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:01,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 19:02:01,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:02:01,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644557033] [2022-04-18 19:02:01,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644557033] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 19:02:01,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296454616] [2022-04-18 19:02:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:02:01,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 19:02:01,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:02:01,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 19:02:01,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-18 19:02:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:02:02,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 34 conjunts are in the unsatisfiable core [2022-04-18 19:02:02,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 19:02:02,104 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-04-18 19:02:02,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-04-18 19:02:02,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-18 19:02:02,242 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-18 19:02:02,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22