./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.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-deagle/circular_buffer_ok.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 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:51:19,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:51:19,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:51:19,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:51:19,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:51:19,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:51:19,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:51:19,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:51:19,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:51:19,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:51:19,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:51:19,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:51:19,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:51:19,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:51:19,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:51:19,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:51:19,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:51:19,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:51:19,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:51:19,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:51:19,464 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:51:19,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:51:19,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:51:19,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:51:19,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:51:19,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:51:19,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:51:19,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:51:19,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:51:19,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:51:19,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:51:19,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:51:19,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:51:19,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:51:19,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:51:19,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:51:19,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:51:19,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:51:19,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:51:19,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:51:19,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:51:19,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:51:19,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:51:19,513 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:51:19,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:51:19,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:51:19,514 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:51:19,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:51:19,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:51:19,516 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:51:19,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:51:19,516 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:51:19,517 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:51:19,517 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:51:19,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:51:19,517 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:51:19,517 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:51:19,518 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:51:19,518 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:51:19,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:51:19,518 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:51:19,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:51:19,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:51:19,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:51:19,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:51:19,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:51:19,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:51:19,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:51:19,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:51:19,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:51:19,521 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:51:19,526 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:51:19,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:51:19,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:51:19,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:51:19,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:51:19,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:51:19,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:51:19,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:51:19,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:51:19,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:51:19,528 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:51:19,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:51:19,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:51:19,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:51:19,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:51:19,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 [2022-04-18 18:51:19,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:51:19,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:51:19,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:51:19,784 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:51:19,785 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:51:19,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2022-04-18 18:51:19,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ca6e3e36f/8893cfb0b1ff44b59db12f418e9d1ea8/FLAG3340ee6cd [2022-04-18 18:51:20,313 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:51:20,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2022-04-18 18:51:20,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ca6e3e36f/8893cfb0b1ff44b59db12f418e9d1ea8/FLAG3340ee6cd [2022-04-18 18:51:20,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ca6e3e36f/8893cfb0b1ff44b59db12f418e9d1ea8 [2022-04-18 18:51:20,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:51:20,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:51:20,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:51:20,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:51:20,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:51:20,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:51:20" (1/1) ... [2022-04-18 18:51:20,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfbbd8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:20, skipping insertion in model container [2022-04-18 18:51:20,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:51:20" (1/1) ... [2022-04-18 18:51:20,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:51:20,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:51:21,145 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-deagle/circular_buffer_ok.i[30451,30464] [2022-04-18 18:51:21,154 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-deagle/circular_buffer_ok.i[30681,30694] [2022-04-18 18:51:21,161 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-deagle/circular_buffer_ok.i[30979,30992] [2022-04-18 18:51:21,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:51:21,183 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:51:21,232 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-deagle/circular_buffer_ok.i[30451,30464] [2022-04-18 18:51:21,233 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-deagle/circular_buffer_ok.i[30681,30694] [2022-04-18 18:51:21,235 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-deagle/circular_buffer_ok.i[30979,30992] [2022-04-18 18:51:21,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:51:21,272 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:51:21,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21 WrapperNode [2022-04-18 18:51:21,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:51:21,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:51:21,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:51:21,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:51:21,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,319 INFO L137 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 250 [2022-04-18 18:51:21,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:51:21,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:51:21,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:51:21,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:51:21,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:51:21,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:51:21,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:51:21,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:51:21,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (1/1) ... [2022-04-18 18:51:21,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:51:21,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:51:21,401 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 18:51:21,423 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 18:51:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:51:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-04-18 18:51:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-04-18 18:51:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-04-18 18:51:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-04-18 18:51:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:51:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:51:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:51:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:51:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:51:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-04-18 18:51:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:51:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:51:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:51:21,461 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 18:51:21,618 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:51:21,628 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:51:21,961 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:51:21,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:51:21,978 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 18:51:21,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:51:21 BoogieIcfgContainer [2022-04-18 18:51:21,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:51:21,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:51:21,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:51:21,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:51:21,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:51:20" (1/3) ... [2022-04-18 18:51:21,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8d4df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:51:21, skipping insertion in model container [2022-04-18 18:51:21,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:51:21" (2/3) ... [2022-04-18 18:51:21,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8d4df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:51:21, skipping insertion in model container [2022-04-18 18:51:21,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:51:21" (3/3) ... [2022-04-18 18:51:21,991 INFO L111 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2022-04-18 18:51:21,997 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:51:21,997 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:51:21,998 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-04-18 18:51:21,998 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:51:22,098 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 18:51:22,163 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:51:22,170 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 18:51:22,170 INFO L341 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-04-18 18:51:22,191 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:51:22,202 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 298 transitions, 612 flow [2022-04-18 18:51:22,204 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 298 transitions, 612 flow [2022-04-18 18:51:22,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 292 places, 298 transitions, 612 flow [2022-04-18 18:51:22,300 INFO L129 PetriNetUnfolder]: 13/296 cut-off events. [2022-04-18 18:51:22,301 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 18:51:22,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 296 events. 13/296 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 789 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 204. Up to 2 conditions per place. [2022-04-18 18:51:22,321 INFO L116 LiptonReduction]: Number of co-enabled transitions 23022 [2022-04-18 18:51:39,348 INFO L131 LiptonReduction]: Checked pairs total: 165604 [2022-04-18 18:51:39,349 INFO L133 LiptonReduction]: Total number of compositions: 343 [2022-04-18 18:51:39,357 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 111 places, 112 transitions, 240 flow [2022-04-18 18:51:39,754 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12301 states, 11923 states have (on average 3.1003103245827393) internal successors, (36965), 12300 states have internal predecessors, (36965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:39,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 12301 states, 11923 states have (on average 3.1003103245827393) internal successors, (36965), 12300 states have internal predecessors, (36965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:51:39,799 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:39,801 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:51:39,801 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:39,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:39,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1184, now seen corresponding path program 1 times [2022-04-18 18:51:39,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:39,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300410203] [2022-04-18 18:51:39,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:39,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:39,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:39,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:39,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300410203] [2022-04-18 18:51:39,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300410203] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:39,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:39,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:51:39,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619662629] [2022-04-18 18:51:39,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:39,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:51:39,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:39,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:51:39,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:51:39,980 INFO L87 Difference]: Start difference. First operand has 12301 states, 11923 states have (on average 3.1003103245827393) internal successors, (36965), 12300 states have internal predecessors, (36965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:40,201 INFO L93 Difference]: Finished difference Result 8628 states and 25915 transitions. [2022-04-18 18:51:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:51:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-04-18 18:51:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:40,265 INFO L225 Difference]: With dead ends: 8628 [2022-04-18 18:51:40,265 INFO L226 Difference]: Without dead ends: 8627 [2022-04-18 18:51:40,266 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:51:40,268 INFO L913 BasicCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:40,269 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:40,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8627 states. [2022-04-18 18:51:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8627 to 8627. [2022-04-18 18:51:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8627 states, 8523 states have (on average 3.0403613751026635) internal successors, (25913), 8626 states have internal predecessors, (25913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8627 states to 8627 states and 25913 transitions. [2022-04-18 18:51:40,695 INFO L78 Accepts]: Start accepts. Automaton has 8627 states and 25913 transitions. Word has length 1 [2022-04-18 18:51:40,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:40,707 INFO L478 AbstractCegarLoop]: Abstraction has 8627 states and 25913 transitions. [2022-04-18 18:51:40,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:40,708 INFO L276 IsEmpty]: Start isEmpty. Operand 8627 states and 25913 transitions. [2022-04-18 18:51:40,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 18:51:40,709 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:40,709 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 18:51:40,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:51:40,709 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:40,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:40,714 INFO L85 PathProgramCache]: Analyzing trace with hash 372532065, now seen corresponding path program 1 times [2022-04-18 18:51:40,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:40,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923196192] [2022-04-18 18:51:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:40,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:40,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:40,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923196192] [2022-04-18 18:51:40,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923196192] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:40,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:40,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:40,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672973160] [2022-04-18 18:51:40,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:40,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:40,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:40,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:40,912 INFO L87 Difference]: Start difference. First operand 8627 states and 25913 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 18:51:41,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:41,377 INFO L93 Difference]: Finished difference Result 14896 states and 44874 transitions. [2022-04-18 18:51:41,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:41,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 6 [2022-04-18 18:51:41,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:41,587 INFO L225 Difference]: With dead ends: 14896 [2022-04-18 18:51:41,588 INFO L226 Difference]: Without dead ends: 14896 [2022-04-18 18:51:41,588 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 18:51:41,589 INFO L913 BasicCegarLoop]: 59 mSDtfsCounter, 74 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:41,589 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 92 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:51:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14896 states. [2022-04-18 18:51:41,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14896 to 8841. [2022-04-18 18:51:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8841 states, 8737 states have (on average 3.064896417534623) internal successors, (26778), 8840 states have internal predecessors, (26778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 26778 transitions. [2022-04-18 18:51:42,087 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 26778 transitions. Word has length 6 [2022-04-18 18:51:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:42,088 INFO L478 AbstractCegarLoop]: Abstraction has 8841 states and 26778 transitions. [2022-04-18 18:51:42,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 18:51:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 26778 transitions. [2022-04-18 18:51:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 18:51:42,091 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:42,092 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:42,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:51:42,092 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:42,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:42,093 INFO L85 PathProgramCache]: Analyzing trace with hash -380815413, now seen corresponding path program 1 times [2022-04-18 18:51:42,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:42,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510992944] [2022-04-18 18:51:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:42,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:42,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:42,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510992944] [2022-04-18 18:51:42,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510992944] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:42,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:42,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:42,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715931991] [2022-04-18 18:51:42,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:42,162 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:42,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:42,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:42,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:42,164 INFO L87 Difference]: Start difference. First operand 8841 states and 26778 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 18:51:42,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:42,394 INFO L93 Difference]: Finished difference Result 14467 states and 44005 transitions. [2022-04-18 18:51:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:42,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 8 [2022-04-18 18:51:42,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:42,455 INFO L225 Difference]: With dead ends: 14467 [2022-04-18 18:51:42,455 INFO L226 Difference]: Without dead ends: 14467 [2022-04-18 18:51:42,456 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 18:51:42,457 INFO L913 BasicCegarLoop]: 60 mSDtfsCounter, 72 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:42,457 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 91 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:42,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14467 states. [2022-04-18 18:51:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14467 to 9096. [2022-04-18 18:51:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9096 states, 8994 states have (on average 3.0900600400266844) internal successors, (27792), 9095 states have internal predecessors, (27792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9096 states to 9096 states and 27792 transitions. [2022-04-18 18:51:42,830 INFO L78 Accepts]: Start accepts. Automaton has 9096 states and 27792 transitions. Word has length 8 [2022-04-18 18:51:42,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:42,831 INFO L478 AbstractCegarLoop]: Abstraction has 9096 states and 27792 transitions. [2022-04-18 18:51:42,832 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 18:51:42,832 INFO L276 IsEmpty]: Start isEmpty. Operand 9096 states and 27792 transitions. [2022-04-18 18:51:42,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:51:42,833 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:42,834 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:42,834 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 18:51:42,834 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:42,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:42,835 INFO L85 PathProgramCache]: Analyzing trace with hash -182907897, now seen corresponding path program 1 times [2022-04-18 18:51:42,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:42,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726547501] [2022-04-18 18:51:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:42,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:42,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:42,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726547501] [2022-04-18 18:51:42,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726547501] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:42,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:42,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 18:51:42,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675873584] [2022-04-18 18:51:42,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:42,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 18:51:42,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:42,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 18:51:42,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:51:42,947 INFO L87 Difference]: Start difference. First operand 9096 states and 27792 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:43,571 INFO L93 Difference]: Finished difference Result 14646 states and 44330 transitions. [2022-04-18 18:51:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:51:43,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-04-18 18:51:43,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:43,644 INFO L225 Difference]: With dead ends: 14646 [2022-04-18 18:51:43,644 INFO L226 Difference]: Without dead ends: 14646 [2022-04-18 18:51:43,644 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 18:51:43,645 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 281 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:43,646 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 246 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 18:51:43,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14646 states. [2022-04-18 18:51:44,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14646 to 13364. [2022-04-18 18:51:44,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13364 states, 13262 states have (on average 3.129920072387272) internal successors, (41509), 13363 states have internal predecessors, (41509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13364 states to 13364 states and 41509 transitions. [2022-04-18 18:51:44,087 INFO L78 Accepts]: Start accepts. Automaton has 13364 states and 41509 transitions. Word has length 10 [2022-04-18 18:51:44,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:44,087 INFO L478 AbstractCegarLoop]: Abstraction has 13364 states and 41509 transitions. [2022-04-18 18:51:44,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:44,088 INFO L276 IsEmpty]: Start isEmpty. Operand 13364 states and 41509 transitions. [2022-04-18 18:51:44,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:51:44,089 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:44,089 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:44,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 18:51:44,090 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:44,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:44,091 INFO L85 PathProgramCache]: Analyzing trace with hash -891357383, now seen corresponding path program 1 times [2022-04-18 18:51:44,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:44,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177675563] [2022-04-18 18:51:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:44,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:44,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:44,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177675563] [2022-04-18 18:51:44,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177675563] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:44,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:44,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:44,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317228513] [2022-04-18 18:51:44,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:44,132 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:44,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:44,133 INFO L87 Difference]: Start difference. First operand 13364 states and 41509 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:44,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:44,300 INFO L93 Difference]: Finished difference Result 14269 states and 43866 transitions. [2022-04-18 18:51:44,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:44,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-04-18 18:51:44,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:44,354 INFO L225 Difference]: With dead ends: 14269 [2022-04-18 18:51:44,355 INFO L226 Difference]: Without dead ends: 14269 [2022-04-18 18:51:44,355 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 18:51:44,356 INFO L913 BasicCegarLoop]: 38 mSDtfsCounter, 80 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:44,356 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 56 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:44,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14269 states. [2022-04-18 18:51:44,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14269 to 13369. [2022-04-18 18:51:44,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13269 states have (on average 3.099932172733439) internal successors, (41133), 13368 states have internal predecessors, (41133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:44,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 41133 transitions. [2022-04-18 18:51:44,819 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 41133 transitions. Word has length 10 [2022-04-18 18:51:44,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:44,820 INFO L478 AbstractCegarLoop]: Abstraction has 13369 states and 41133 transitions. [2022-04-18 18:51:44,820 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:44,820 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 41133 transitions. [2022-04-18 18:51:44,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 18:51:44,822 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:44,822 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:44,822 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 18:51:44,822 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:44,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:44,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1824055309, now seen corresponding path program 1 times [2022-04-18 18:51:44,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:44,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96836875] [2022-04-18 18:51:44,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:44,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:44,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:44,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:44,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96836875] [2022-04-18 18:51:44,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96836875] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:44,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:44,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:44,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728461691] [2022-04-18 18:51:44,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:44,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:44,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:44,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:44,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:44,889 INFO L87 Difference]: Start difference. First operand 13369 states and 41133 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 18:51:45,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:45,103 INFO L93 Difference]: Finished difference Result 13583 states and 41771 transitions. [2022-04-18 18:51:45,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:45,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 12 [2022-04-18 18:51:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:45,150 INFO L225 Difference]: With dead ends: 13583 [2022-04-18 18:51:45,150 INFO L226 Difference]: Without dead ends: 13583 [2022-04-18 18:51:45,151 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 18:51:45,152 INFO L913 BasicCegarLoop]: 49 mSDtfsCounter, 35 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:45,152 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 73 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:45,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13583 states. [2022-04-18 18:51:45,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13583 to 13583. [2022-04-18 18:51:45,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13583 states, 13483 states have (on average 3.0980493955351185) internal successors, (41771), 13582 states have internal predecessors, (41771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13583 states to 13583 states and 41771 transitions. [2022-04-18 18:51:45,640 INFO L78 Accepts]: Start accepts. Automaton has 13583 states and 41771 transitions. Word has length 12 [2022-04-18 18:51:45,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:45,640 INFO L478 AbstractCegarLoop]: Abstraction has 13583 states and 41771 transitions. [2022-04-18 18:51:45,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 18:51:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 13583 states and 41771 transitions. [2022-04-18 18:51:45,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 18:51:45,641 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:45,641 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:45,642 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 18:51:45,642 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:45,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:45,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1824104892, now seen corresponding path program 1 times [2022-04-18 18:51:45,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:45,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977584079] [2022-04-18 18:51:45,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:45,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:45,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:45,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:45,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977584079] [2022-04-18 18:51:45,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977584079] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:45,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:45,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 18:51:45,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743341254] [2022-04-18 18:51:45,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:45,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 18:51:45,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:45,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 18:51:45,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 18:51:45,702 INFO L87 Difference]: Start difference. First operand 13583 states and 41771 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 18:51:46,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:46,087 INFO L93 Difference]: Finished difference Result 24213 states and 73940 transitions. [2022-04-18 18:51:46,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 18:51:46,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 12 [2022-04-18 18:51:46,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:46,170 INFO L225 Difference]: With dead ends: 24213 [2022-04-18 18:51:46,170 INFO L226 Difference]: Without dead ends: 24206 [2022-04-18 18:51:46,171 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 18:51:46,171 INFO L913 BasicCegarLoop]: 79 mSDtfsCounter, 108 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:46,172 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 179 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:51:46,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24206 states. [2022-04-18 18:51:46,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24206 to 15095. [2022-04-18 18:51:46,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15095 states, 14991 states have (on average 3.122006537255687) internal successors, (46802), 15094 states have internal predecessors, (46802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:46,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15095 states to 15095 states and 46802 transitions. [2022-04-18 18:51:46,680 INFO L78 Accepts]: Start accepts. Automaton has 15095 states and 46802 transitions. Word has length 12 [2022-04-18 18:51:46,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:46,680 INFO L478 AbstractCegarLoop]: Abstraction has 15095 states and 46802 transitions. [2022-04-18 18:51:46,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 18:51:46,681 INFO L276 IsEmpty]: Start isEmpty. Operand 15095 states and 46802 transitions. [2022-04-18 18:51:46,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-18 18:51:46,683 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:46,683 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:46,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 18:51:46,683 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:46,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:46,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1355881496, now seen corresponding path program 1 times [2022-04-18 18:51:46,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:46,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124625548] [2022-04-18 18:51:46,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:46,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:46,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:46,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:46,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124625548] [2022-04-18 18:51:46,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124625548] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:46,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:46,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:46,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529319247] [2022-04-18 18:51:46,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:46,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:46,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:46,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:46,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:46,720 INFO L87 Difference]: Start difference. First operand 15095 states and 46802 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:46,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:46,973 INFO L93 Difference]: Finished difference Result 27390 states and 85108 transitions. [2022-04-18 18:51:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:46,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have 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 18:51:46,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:47,070 INFO L225 Difference]: With dead ends: 27390 [2022-04-18 18:51:47,070 INFO L226 Difference]: Without dead ends: 27390 [2022-04-18 18:51:47,071 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 18:51:47,071 INFO L913 BasicCegarLoop]: 65 mSDtfsCounter, 79 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:47,072 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 99 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:47,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27390 states. [2022-04-18 18:51:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27390 to 15419. [2022-04-18 18:51:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15419 states, 15318 states have (on average 3.1162031596814206) internal successors, (47734), 15418 states have internal predecessors, (47734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15419 states to 15419 states and 47734 transitions. [2022-04-18 18:51:47,844 INFO L78 Accepts]: Start accepts. Automaton has 15419 states and 47734 transitions. Word has length 13 [2022-04-18 18:51:47,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:47,844 INFO L478 AbstractCegarLoop]: Abstraction has 15419 states and 47734 transitions. [2022-04-18 18:51:47,844 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:47,844 INFO L276 IsEmpty]: Start isEmpty. Operand 15419 states and 47734 transitions. [2022-04-18 18:51:47,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-18 18:51:47,846 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:47,846 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:47,846 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 18:51:47,847 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:47,847 INFO L85 PathProgramCache]: Analyzing trace with hash -917326846, now seen corresponding path program 1 times [2022-04-18 18:51:47,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:47,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990421644] [2022-04-18 18:51:47,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:47,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:47,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:47,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990421644] [2022-04-18 18:51:47,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990421644] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:47,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:47,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:51:47,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121343370] [2022-04-18 18:51:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:47,885 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:47,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:47,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:47,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:47,886 INFO L87 Difference]: Start difference. First operand 15419 states and 47734 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) 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 18:51:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:48,044 INFO L93 Difference]: Finished difference Result 15929 states and 49268 transitions. [2022-04-18 18:51:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:48,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) 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 14 [2022-04-18 18:51:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:48,093 INFO L225 Difference]: With dead ends: 15929 [2022-04-18 18:51:48,093 INFO L226 Difference]: Without dead ends: 15929 [2022-04-18 18:51:48,094 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 18:51:48,094 INFO L913 BasicCegarLoop]: 62 mSDtfsCounter, 52 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:48,095 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 100 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:48,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15929 states. [2022-04-18 18:51:48,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15929 to 15929. [2022-04-18 18:51:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15929 states, 15828 states have (on average 3.112711650240081) internal successors, (49268), 15928 states have internal predecessors, (49268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:48,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15929 states to 15929 states and 49268 transitions. [2022-04-18 18:51:48,552 INFO L78 Accepts]: Start accepts. Automaton has 15929 states and 49268 transitions. Word has length 14 [2022-04-18 18:51:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:48,552 INFO L478 AbstractCegarLoop]: Abstraction has 15929 states and 49268 transitions. [2022-04-18 18:51:48,552 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) 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 18:51:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 15929 states and 49268 transitions. [2022-04-18 18:51:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 18:51:48,554 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:48,555 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:48,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 18:51:48,555 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:48,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:48,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1804759600, now seen corresponding path program 1 times [2022-04-18 18:51:48,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:48,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691268034] [2022-04-18 18:51:48,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:48,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:48,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:48,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691268034] [2022-04-18 18:51:48,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691268034] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:48,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:48,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:48,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084025850] [2022-04-18 18:51:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:48,635 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:48,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:48,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:48,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:48,636 INFO L87 Difference]: Start difference. First operand 15929 states and 49268 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 18:51:49,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:49,141 INFO L93 Difference]: Finished difference Result 29252 states and 90721 transitions. [2022-04-18 18:51:49,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:49,142 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 15 [2022-04-18 18:51:49,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:49,242 INFO L225 Difference]: With dead ends: 29252 [2022-04-18 18:51:49,242 INFO L226 Difference]: Without dead ends: 29252 [2022-04-18 18:51:49,243 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 18:51:49,243 INFO L913 BasicCegarLoop]: 62 mSDtfsCounter, 70 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:49,244 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 86 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:51:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29252 states. [2022-04-18 18:51:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29252 to 16245. [2022-04-18 18:51:49,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16245 states, 16147 states have (on average 3.107512231374249) internal successors, (50177), 16244 states have internal predecessors, (50177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:49,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16245 states to 16245 states and 50177 transitions. [2022-04-18 18:51:49,708 INFO L78 Accepts]: Start accepts. Automaton has 16245 states and 50177 transitions. Word has length 15 [2022-04-18 18:51:49,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:49,709 INFO L478 AbstractCegarLoop]: Abstraction has 16245 states and 50177 transitions. [2022-04-18 18:51:49,709 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 18:51:49,709 INFO L276 IsEmpty]: Start isEmpty. Operand 16245 states and 50177 transitions. [2022-04-18 18:51:49,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 18:51:49,711 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:49,711 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:49,711 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 18:51:49,711 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:49,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:49,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1274678176, now seen corresponding path program 1 times [2022-04-18 18:51:49,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:49,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036469426] [2022-04-18 18:51:49,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:49,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:49,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:49,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036469426] [2022-04-18 18:51:49,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036469426] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:49,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:49,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:51:49,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543025959] [2022-04-18 18:51:49,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:49,827 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 18:51:49,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:49,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 18:51:49,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:51:49,828 INFO L87 Difference]: Start difference. First operand 16245 states and 50177 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:50,252 INFO L93 Difference]: Finished difference Result 16389 states and 50620 transitions. [2022-04-18 18:51:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 18:51:50,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-04-18 18:51:50,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:50,299 INFO L225 Difference]: With dead ends: 16389 [2022-04-18 18:51:50,299 INFO L226 Difference]: Without dead ends: 16389 [2022-04-18 18:51:50,300 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:51:50,300 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 110 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:50,300 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 87 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:51:50,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16389 states. [2022-04-18 18:51:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16389 to 16229. [2022-04-18 18:51:50,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16229 states, 16139 states have (on average 3.107813371336514) internal successors, (50157), 16228 states have internal predecessors, (50157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16229 states to 16229 states and 50157 transitions. [2022-04-18 18:51:50,582 INFO L78 Accepts]: Start accepts. Automaton has 16229 states and 50157 transitions. Word has length 16 [2022-04-18 18:51:50,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:50,583 INFO L478 AbstractCegarLoop]: Abstraction has 16229 states and 50157 transitions. [2022-04-18 18:51:50,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:50,583 INFO L276 IsEmpty]: Start isEmpty. Operand 16229 states and 50157 transitions. [2022-04-18 18:51:50,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 18:51:50,585 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:50,585 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:50,586 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 18:51:50,586 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:50,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:50,586 INFO L85 PathProgramCache]: Analyzing trace with hash 246248585, now seen corresponding path program 1 times [2022-04-18 18:51:50,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:50,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68452305] [2022-04-18 18:51:50,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:50,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:50,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:50,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68452305] [2022-04-18 18:51:50,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68452305] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:50,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:50,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:51:50,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506057600] [2022-04-18 18:51:50,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:50,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:50,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:50,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:50,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:50,619 INFO L87 Difference]: Start difference. First operand 16229 states and 50157 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:50,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:50,815 INFO L93 Difference]: Finished difference Result 20758 states and 64146 transitions. [2022-04-18 18:51:50,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:50,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-04-18 18:51:50,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:50,869 INFO L225 Difference]: With dead ends: 20758 [2022-04-18 18:51:50,869 INFO L226 Difference]: Without dead ends: 20751 [2022-04-18 18:51:50,869 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 18:51:50,870 INFO L913 BasicCegarLoop]: 58 mSDtfsCounter, 56 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:50,870 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 96 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20751 states. [2022-04-18 18:51:51,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20751 to 19328. [2022-04-18 18:51:51,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19328 states, 19227 states have (on average 3.1819316586050865) internal successors, (61179), 19327 states have internal predecessors, (61179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19328 states to 19328 states and 61179 transitions. [2022-04-18 18:51:51,338 INFO L78 Accepts]: Start accepts. Automaton has 19328 states and 61179 transitions. Word has length 16 [2022-04-18 18:51:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:51,338 INFO L478 AbstractCegarLoop]: Abstraction has 19328 states and 61179 transitions. [2022-04-18 18:51:51,338 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 19328 states and 61179 transitions. [2022-04-18 18:51:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-18 18:51:51,342 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:51,342 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:51,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 18:51:51,342 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:51,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:51,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1397567149, now seen corresponding path program 1 times [2022-04-18 18:51:51,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:51,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071028547] [2022-04-18 18:51:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:51,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:51,359 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 18:51:51,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423104097] [2022-04-18 18:51:51,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:51,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:51:51,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:51:51,361 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 18:51:51,362 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 18:51:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:51,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:51:51,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:51:51,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:51,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:51:51,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:51,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071028547] [2022-04-18 18:51:51,502 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 18:51:51,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423104097] [2022-04-18 18:51:51,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423104097] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:51,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:51,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:51,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287399780] [2022-04-18 18:51:51,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:51,503 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:51,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:51,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:51,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:51,504 INFO L87 Difference]: Start difference. First operand 19328 states and 61179 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 18:51:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:51,710 INFO L93 Difference]: Finished difference Result 19530 states and 61794 transitions. [2022-04-18 18:51:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:51,711 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 17 [2022-04-18 18:51:51,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:51,778 INFO L225 Difference]: With dead ends: 19530 [2022-04-18 18:51:51,778 INFO L226 Difference]: Without dead ends: 19530 [2022-04-18 18:51:51,779 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 18:51:51,779 INFO L913 BasicCegarLoop]: 54 mSDtfsCounter, 39 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:51,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 86 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2022-04-18 18:51:52,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 19530. [2022-04-18 18:51:52,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19530 states, 19435 states have (on average 3.179521481862619) internal successors, (61794), 19529 states have internal predecessors, (61794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19530 states to 19530 states and 61794 transitions. [2022-04-18 18:51:52,311 INFO L78 Accepts]: Start accepts. Automaton has 19530 states and 61794 transitions. Word has length 17 [2022-04-18 18:51:52,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:52,311 INFO L478 AbstractCegarLoop]: Abstraction has 19530 states and 61794 transitions. [2022-04-18 18:51:52,312 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 18:51:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 19530 states and 61794 transitions. [2022-04-18 18:51:52,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-18 18:51:52,315 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:52,315 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:52,339 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 18:51:52,539 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-04-18 18:51:52,540 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:52,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:52,540 INFO L85 PathProgramCache]: Analyzing trace with hash 237240384, now seen corresponding path program 1 times [2022-04-18 18:51:52,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:52,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460708600] [2022-04-18 18:51:52,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:52,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:52,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:52,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:52,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460708600] [2022-04-18 18:51:52,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460708600] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:52,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:52,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:51:52,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718403792] [2022-04-18 18:51:52,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:52,578 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 18:51:52,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:52,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 18:51:52,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 18:51:52,579 INFO L87 Difference]: Start difference. First operand 19530 states and 61794 transitions. Second operand has 4 states, 4 states have (on average 4.25) 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 18:51:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:53,108 INFO L93 Difference]: Finished difference Result 28128 states and 88129 transitions. [2022-04-18 18:51:53,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 18:51:53,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) 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 17 [2022-04-18 18:51:53,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:53,204 INFO L225 Difference]: With dead ends: 28128 [2022-04-18 18:51:53,205 INFO L226 Difference]: Without dead ends: 28080 [2022-04-18 18:51:53,205 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 18:51:53,206 INFO L913 BasicCegarLoop]: 56 mSDtfsCounter, 102 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:53,206 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 132 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:51:53,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28080 states. [2022-04-18 18:51:53,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28080 to 27006. [2022-04-18 18:51:53,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27006 states, 26905 states have (on average 3.1898160193272624) internal successors, (85822), 27005 states have internal predecessors, (85822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:53,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27006 states to 27006 states and 85822 transitions. [2022-04-18 18:51:53,798 INFO L78 Accepts]: Start accepts. Automaton has 27006 states and 85822 transitions. Word has length 17 [2022-04-18 18:51:53,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:53,798 INFO L478 AbstractCegarLoop]: Abstraction has 27006 states and 85822 transitions. [2022-04-18 18:51:53,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) 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 18:51:53,799 INFO L276 IsEmpty]: Start isEmpty. Operand 27006 states and 85822 transitions. [2022-04-18 18:51:53,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-18 18:51:53,802 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:53,802 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:53,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 18:51:53,803 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:53,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:53,803 INFO L85 PathProgramCache]: Analyzing trace with hash -999933700, now seen corresponding path program 1 times [2022-04-18 18:51:53,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:53,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499647157] [2022-04-18 18:51:53,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:53,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:54,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:54,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:54,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499647157] [2022-04-18 18:51:54,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499647157] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:54,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:54,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 18:51:54,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380658771] [2022-04-18 18:51:54,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:54,494 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 18:51:54,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:54,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 18:51:54,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-04-18 18:51:54,495 INFO L87 Difference]: Start difference. First operand 27006 states and 85822 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:55,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:55,484 INFO L93 Difference]: Finished difference Result 38196 states and 118650 transitions. [2022-04-18 18:51:55,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 18:51:55,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have 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 18:51:55,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:55,595 INFO L225 Difference]: With dead ends: 38196 [2022-04-18 18:51:55,595 INFO L226 Difference]: Without dead ends: 38060 [2022-04-18 18:51:55,596 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-04-18 18:51:55,596 INFO L913 BasicCegarLoop]: 123 mSDtfsCounter, 396 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:55,597 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 499 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-18 18:51:55,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38060 states. [2022-04-18 18:51:56,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38060 to 21364. [2022-04-18 18:51:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21364 states, 21268 states have (on average 3.147545608425804) internal successors, (66942), 21363 states have internal predecessors, (66942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21364 states to 21364 states and 66942 transitions. [2022-04-18 18:51:56,239 INFO L78 Accepts]: Start accepts. Automaton has 21364 states and 66942 transitions. Word has length 19 [2022-04-18 18:51:56,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:56,239 INFO L478 AbstractCegarLoop]: Abstraction has 21364 states and 66942 transitions. [2022-04-18 18:51:56,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 21364 states and 66942 transitions. [2022-04-18 18:51:56,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-18 18:51:56,242 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:56,242 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:56,243 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 18:51:56,243 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:56,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:56,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1161642100, now seen corresponding path program 2 times [2022-04-18 18:51:56,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:56,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987945862] [2022-04-18 18:51:56,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:56,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:57,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:57,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987945862] [2022-04-18 18:51:57,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987945862] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:57,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:57,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 18:51:57,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214573560] [2022-04-18 18:51:57,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:57,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 18:51:57,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:57,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 18:51:57,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-18 18:51:57,190 INFO L87 Difference]: Start difference. First operand 21364 states and 66942 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:57,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:57,885 INFO L93 Difference]: Finished difference Result 25446 states and 78645 transitions. [2022-04-18 18:51:57,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 18:51:57,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have 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 18:51:57,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:57,951 INFO L225 Difference]: With dead ends: 25446 [2022-04-18 18:51:57,952 INFO L226 Difference]: Without dead ends: 25445 [2022-04-18 18:51:57,952 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-18 18:51:57,955 INFO L913 BasicCegarLoop]: 72 mSDtfsCounter, 192 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:57,955 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 213 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 18:51:57,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25445 states. [2022-04-18 18:51:58,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25445 to 21284. [2022-04-18 18:51:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21284 states, 21188 states have (on average 3.1473475552199357) internal successors, (66686), 21283 states have internal predecessors, (66686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21284 states to 21284 states and 66686 transitions. [2022-04-18 18:51:58,384 INFO L78 Accepts]: Start accepts. Automaton has 21284 states and 66686 transitions. Word has length 19 [2022-04-18 18:51:58,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:58,384 INFO L478 AbstractCegarLoop]: Abstraction has 21284 states and 66686 transitions. [2022-04-18 18:51:58,384 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:58,384 INFO L276 IsEmpty]: Start isEmpty. Operand 21284 states and 66686 transitions. [2022-04-18 18:51:58,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-18 18:51:58,388 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:58,388 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:58,388 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 18:51:58,388 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:51:58,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:58,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1554532360, now seen corresponding path program 1 times [2022-04-18 18:51:58,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:58,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336970984] [2022-04-18 18:51:58,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:58,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:58,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:58,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:58,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336970984] [2022-04-18 18:51:58,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336970984] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 18:51:58,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642239697] [2022-04-18 18:51:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:58,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:51:58,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:51:58,428 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 18:51:58,458 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 18:51:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:58,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:51:58,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:51:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:58,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 18:51:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:58,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642239697] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 18:51:58,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [680325787] [2022-04-18 18:51:58,650 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 18:51:58,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 18:51:58,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-04-18 18:51:58,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915754623] [2022-04-18 18:51:58,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 18:51:58,652 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 18:51:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:58,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 18:51:58,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-04-18 18:51:58,653 INFO L87 Difference]: Start difference. First operand 21284 states and 66686 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:59,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:59,303 INFO L93 Difference]: Finished difference Result 60861 states and 190526 transitions. [2022-04-18 18:51:59,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:51:59,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-04-18 18:51:59,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:59,519 INFO L225 Difference]: With dead ends: 60861 [2022-04-18 18:51:59,519 INFO L226 Difference]: Without dead ends: 60861 [2022-04-18 18:51:59,519 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-04-18 18:51:59,520 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 424 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:59,520 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 198 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 18:51:59,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60861 states. [2022-04-18 18:52:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60861 to 55787. [2022-04-18 18:52:00,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55787 states, 55691 states have (on average 3.240846815463899) internal successors, (180486), 55786 states have internal predecessors, (180486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55787 states to 55787 states and 180486 transitions. [2022-04-18 18:52:00,885 INFO L78 Accepts]: Start accepts. Automaton has 55787 states and 180486 transitions. Word has length 21 [2022-04-18 18:52:00,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:00,885 INFO L478 AbstractCegarLoop]: Abstraction has 55787 states and 180486 transitions. [2022-04-18 18:52:00,885 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:00,885 INFO L276 IsEmpty]: Start isEmpty. Operand 55787 states and 180486 transitions. [2022-04-18 18:52:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-18 18:52:00,889 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:52:00,889 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:00,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 18:52:01,103 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-04-18 18:52:01,103 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:52:01,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:52:01,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1940324952, now seen corresponding path program 1 times [2022-04-18 18:52:01,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:52:01,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972609598] [2022-04-18 18:52:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:01,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:52:01,138 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 18:52:01,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [337360519] [2022-04-18 18:52:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:01,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:01,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:52:01,143 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 18:52:01,167 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 18:52:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:52:01,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 26 conjunts are in the unsatisfiable core [2022-04-18 18:52:01,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:52:01,289 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-04-18 18:52:01,290 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 11 treesize of output 11 [2022-04-18 18:52:01,379 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 11 treesize of output 7 [2022-04-18 18:52:01,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 18:52:01,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 18:52:01,477 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 0 case distinctions, treesize of input 32 treesize of output 30 [2022-04-18 18:52:01,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:01,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 18:52:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:52:01,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:52:01,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:52:01,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972609598] [2022-04-18 18:52:01,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 18:52:01,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337360519] [2022-04-18 18:52:01,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337360519] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:52:01,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:52:01,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 18:52:01,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980353462] [2022-04-18 18:52:01,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:52:01,972 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 18:52:01,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:52:01,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 18:52:01,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-04-18 18:52:01,973 INFO L87 Difference]: Start difference. First operand 55787 states and 180486 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:02,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:52:02,713 INFO L93 Difference]: Finished difference Result 51181 states and 165073 transitions. [2022-04-18 18:52:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 18:52:02,714 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-04-18 18:52:02,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:52:02,882 INFO L225 Difference]: With dead ends: 51181 [2022-04-18 18:52:02,882 INFO L226 Difference]: Without dead ends: 51177 [2022-04-18 18:52:02,882 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-04-18 18:52:02,883 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 344 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 18:52:02,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 312 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 18:52:02,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51177 states. [2022-04-18 18:52:03,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51177 to 34901. [2022-04-18 18:52:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34901 states, 34850 states have (on average 3.176126255380201) internal successors, (110688), 34900 states have internal predecessors, (110688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:03,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34901 states to 34901 states and 110688 transitions. [2022-04-18 18:52:03,895 INFO L78 Accepts]: Start accepts. Automaton has 34901 states and 110688 transitions. Word has length 23 [2022-04-18 18:52:03,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:03,895 INFO L478 AbstractCegarLoop]: Abstraction has 34901 states and 110688 transitions. [2022-04-18 18:52:03,895 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:03,896 INFO L276 IsEmpty]: Start isEmpty. Operand 34901 states and 110688 transitions. [2022-04-18 18:52:03,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-18 18:52:03,899 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:52:03,899 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:03,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-18 18:52:04,101 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-04-18 18:52:04,101 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:52:04,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:52:04,102 INFO L85 PathProgramCache]: Analyzing trace with hash 414578094, now seen corresponding path program 1 times [2022-04-18 18:52:04,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:52:04,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843611550] [2022-04-18 18:52:04,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:04,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:52:04,120 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 18:52:04,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387208698] [2022-04-18 18:52:04,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:04,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:04,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:52:04,122 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 18:52:04,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-18 18:52:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:52:04,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:52:04,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:52:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:52:04,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:52:04,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:52:04,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843611550] [2022-04-18 18:52:04,270 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 18:52:04,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387208698] [2022-04-18 18:52:04,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387208698] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:52:04,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:52:04,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:52:04,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372088716] [2022-04-18 18:52:04,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:52:04,271 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:52:04,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:52:04,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:52:04,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:52:04,272 INFO L87 Difference]: Start difference. First operand 34901 states and 110688 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:04,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:52:04,554 INFO L93 Difference]: Finished difference Result 36215 states and 114493 transitions. [2022-04-18 18:52:04,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:52:04,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-04-18 18:52:04,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:52:04,666 INFO L225 Difference]: With dead ends: 36215 [2022-04-18 18:52:04,667 INFO L226 Difference]: Without dead ends: 36215 [2022-04-18 18:52:04,667 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 18:52:04,667 INFO L913 BasicCegarLoop]: 51 mSDtfsCounter, 38 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:52:04,668 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 84 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:52:04,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36215 states. [2022-04-18 18:52:05,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36215 to 35515. [2022-04-18 18:52:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35515 states, 35468 states have (on average 3.1693075448291417) internal successors, (112409), 35514 states have internal predecessors, (112409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35515 states to 35515 states and 112409 transitions. [2022-04-18 18:52:05,652 INFO L78 Accepts]: Start accepts. Automaton has 35515 states and 112409 transitions. Word has length 23 [2022-04-18 18:52:05,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:05,653 INFO L478 AbstractCegarLoop]: Abstraction has 35515 states and 112409 transitions. [2022-04-18 18:52:05,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:05,653 INFO L276 IsEmpty]: Start isEmpty. Operand 35515 states and 112409 transitions. [2022-04-18 18:52:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-18 18:52:05,657 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:52:05,658 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:05,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-18 18:52:05,858 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:05,861 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:52:05,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:52:05,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1068968031, now seen corresponding path program 1 times [2022-04-18 18:52:05,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:52:05,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107927751] [2022-04-18 18:52:05,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:05,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:52:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:52:05,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:52:05,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:52:05,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107927751] [2022-04-18 18:52:05,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107927751] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:52:05,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:52:05,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:52:05,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44199935] [2022-04-18 18:52:05,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:52:05,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:52:05,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:52:05,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:52:05,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:52:05,896 INFO L87 Difference]: Start difference. First operand 35515 states and 112409 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:05,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:52:05,988 INFO L93 Difference]: Finished difference Result 4470 states and 10724 transitions. [2022-04-18 18:52:05,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:52:05,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-04-18 18:52:05,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:52:05,996 INFO L225 Difference]: With dead ends: 4470 [2022-04-18 18:52:05,997 INFO L226 Difference]: Without dead ends: 4212 [2022-04-18 18:52:05,997 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 18:52:05,998 INFO L913 BasicCegarLoop]: 38 mSDtfsCounter, 62 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:52:05,998 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 47 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:52:06,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4212 states. [2022-04-18 18:52:06,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4212 to 3736. [2022-04-18 18:52:06,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 3726 states have (on average 2.457595276435856) internal successors, (9157), 3735 states have internal predecessors, (9157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:06,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 9157 transitions. [2022-04-18 18:52:06,067 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 9157 transitions. Word has length 24 [2022-04-18 18:52:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:06,068 INFO L478 AbstractCegarLoop]: Abstraction has 3736 states and 9157 transitions. [2022-04-18 18:52:06,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 9157 transitions. [2022-04-18 18:52:06,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-04-18 18:52:06,070 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:52:06,070 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:06,070 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 18:52:06,070 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:52:06,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:52:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1628971305, now seen corresponding path program 1 times [2022-04-18 18:52:06,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:52:06,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844656671] [2022-04-18 18:52:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:06,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:52:06,083 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 18:52:06,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848733174] [2022-04-18 18:52:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:06,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:06,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:52:06,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 18:52:06,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-18 18:52:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:52:06,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:52:06,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:52:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:52:06,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:52:06,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:52:06,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844656671] [2022-04-18 18:52:06,248 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 18:52:06,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848733174] [2022-04-18 18:52:06,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848733174] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:52:06,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:52:06,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:52:06,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093604568] [2022-04-18 18:52:06,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:52:06,250 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:52:06,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:52:06,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:52:06,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:52:06,251 INFO L87 Difference]: Start difference. First operand 3736 states and 9157 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:06,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:52:06,345 INFO L93 Difference]: Finished difference Result 3713 states and 9058 transitions. [2022-04-18 18:52:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:52:06,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-04-18 18:52:06,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:52:06,351 INFO L225 Difference]: With dead ends: 3713 [2022-04-18 18:52:06,351 INFO L226 Difference]: Without dead ends: 3713 [2022-04-18 18:52:06,351 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 18:52:06,352 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:52:06,352 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 58 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:52:06,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-04-18 18:52:06,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3713. [2022-04-18 18:52:06,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3713 states, 3704 states have (on average 2.445464362850972) internal successors, (9058), 3712 states have internal predecessors, (9058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3713 states to 3713 states and 9058 transitions. [2022-04-18 18:52:06,401 INFO L78 Accepts]: Start accepts. Automaton has 3713 states and 9058 transitions. Word has length 26 [2022-04-18 18:52:06,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:06,401 INFO L478 AbstractCegarLoop]: Abstraction has 3713 states and 9058 transitions. [2022-04-18 18:52:06,401 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:06,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3713 states and 9058 transitions. [2022-04-18 18:52:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-18 18:52:06,403 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:52:06,403 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:06,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-04-18 18:52:06,604 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:06,607 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:52:06,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:52:06,607 INFO L85 PathProgramCache]: Analyzing trace with hash 155376030, now seen corresponding path program 1 times [2022-04-18 18:52:06,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:52:06,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039217125] [2022-04-18 18:52:06,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:06,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:52:06,624 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 18:52:06,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [335981842] [2022-04-18 18:52:06,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:06,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:06,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:52:06,626 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 18:52:06,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-18 18:52:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:52:07,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:52:07,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:52:07,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:52:07,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:52:07,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:52:07,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039217125] [2022-04-18 18:52:07,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 18:52:07,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335981842] [2022-04-18 18:52:07,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335981842] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:52:07,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:52:07,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:52:07,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317094262] [2022-04-18 18:52:07,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:52:07,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:52:07,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:52:07,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:52:07,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:52:07,043 INFO L87 Difference]: Start difference. First operand 3713 states and 9058 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:07,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:52:07,116 INFO L93 Difference]: Finished difference Result 3690 states and 8959 transitions. [2022-04-18 18:52:07,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:52:07,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-04-18 18:52:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:52:07,121 INFO L225 Difference]: With dead ends: 3690 [2022-04-18 18:52:07,121 INFO L226 Difference]: Without dead ends: 3690 [2022-04-18 18:52:07,121 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 18:52:07,122 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 11 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:52:07,122 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 53 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:52:07,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2022-04-18 18:52:07,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3690. [2022-04-18 18:52:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3690 states, 3682 states have (on average 2.433188484519283) internal successors, (8959), 3689 states have internal predecessors, (8959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:07,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3690 states to 3690 states and 8959 transitions. [2022-04-18 18:52:07,160 INFO L78 Accepts]: Start accepts. Automaton has 3690 states and 8959 transitions. Word has length 29 [2022-04-18 18:52:07,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:07,160 INFO L478 AbstractCegarLoop]: Abstraction has 3690 states and 8959 transitions. [2022-04-18 18:52:07,160 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:07,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3690 states and 8959 transitions. [2022-04-18 18:52:07,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-04-18 18:52:07,162 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:52:07,162 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:07,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-18 18:52:07,363 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:07,363 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:52:07,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:52:07,363 INFO L85 PathProgramCache]: Analyzing trace with hash -490516991, now seen corresponding path program 2 times [2022-04-18 18:52:07,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:52:07,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121608205] [2022-04-18 18:52:07,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:07,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:52:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:52:07,417 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:52:07,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:52:07,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121608205] [2022-04-18 18:52:07,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121608205] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 18:52:07,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984400990] [2022-04-18 18:52:07,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-18 18:52:07,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:07,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:52:07,423 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 18:52:07,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-18 18:52:07,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-04-18 18:52:07,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 18:52:07,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 18:52:07,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:52:07,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 18:52:07,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:07,632 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 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 18:52:07,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:07,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:07,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:52:07,658 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 18:52:07,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 18:52:07,678 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-04-18 18:52:07,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:52:07,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984400990] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:52:07,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 18:52:07,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-04-18 18:52:07,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414990456] [2022-04-18 18:52:07,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:52:07,679 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 18:52:07,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:52:07,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 18:52:07,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-04-18 18:52:07,679 INFO L87 Difference]: Start difference. First operand 3690 states and 8959 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:52:07,881 INFO L93 Difference]: Finished difference Result 3653 states and 8881 transitions. [2022-04-18 18:52:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:52:07,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-04-18 18:52:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:52:07,885 INFO L225 Difference]: With dead ends: 3653 [2022-04-18 18:52:07,885 INFO L226 Difference]: Without dead ends: 2301 [2022-04-18 18:52:07,885 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-04-18 18:52:07,885 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 139 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:52:07,886 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 100 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:52:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2022-04-18 18:52:07,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2301. [2022-04-18 18:52:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2297 states have (on average 2.2233347845015237) internal successors, (5107), 2300 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 5107 transitions. [2022-04-18 18:52:07,905 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 5107 transitions. Word has length 33 [2022-04-18 18:52:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:07,905 INFO L478 AbstractCegarLoop]: Abstraction has 2301 states and 5107 transitions. [2022-04-18 18:52:07,905 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 5107 transitions. [2022-04-18 18:52:07,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-04-18 18:52:07,906 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:52:07,906 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:07,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-18 18:52:08,115 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-04-18 18:52:08,118 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:52:08,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:52:08,118 INFO L85 PathProgramCache]: Analyzing trace with hash -543843147, now seen corresponding path program 1 times [2022-04-18 18:52:08,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:52:08,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258671776] [2022-04-18 18:52:08,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:08,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:52:08,132 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 18:52:08,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517976085] [2022-04-18 18:52:08,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:08,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:52:08,133 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 18:52:08,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-18 18:52:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:52:08,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:52:08,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:52:08,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:52:08,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:52:08,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:52:08,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258671776] [2022-04-18 18:52:08,368 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 18:52:08,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517976085] [2022-04-18 18:52:08,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517976085] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:52:08,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:52:08,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:52:08,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460489612] [2022-04-18 18:52:08,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:52:08,368 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:52:08,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:52:08,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:52:08,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:52:08,369 INFO L87 Difference]: Start difference. First operand 2301 states and 5107 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:08,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:52:08,450 INFO L93 Difference]: Finished difference Result 2274 states and 5035 transitions. [2022-04-18 18:52:08,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:52:08,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-04-18 18:52:08,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:52:08,454 INFO L225 Difference]: With dead ends: 2274 [2022-04-18 18:52:08,454 INFO L226 Difference]: Without dead ends: 2274 [2022-04-18 18:52:08,454 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 18:52:08,454 INFO L913 BasicCegarLoop]: 34 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:52:08,455 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 56 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:52:08,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-04-18 18:52:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2274. [2022-04-18 18:52:08,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 2272 states have (on average 2.2161091549295775) internal successors, (5035), 2273 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 5035 transitions. [2022-04-18 18:52:08,477 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 5035 transitions. Word has length 45 [2022-04-18 18:52:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:08,478 INFO L478 AbstractCegarLoop]: Abstraction has 2274 states and 5035 transitions. [2022-04-18 18:52:08,478 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:08,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 5035 transitions. [2022-04-18 18:52:08,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-18 18:52:08,479 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:52:08,479 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:08,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-04-18 18:52:08,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-04-18 18:52:08,680 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting t2Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 18:52:08,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:52:08,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1013670282, now seen corresponding path program 1 times [2022-04-18 18:52:08,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:52:08,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945066504] [2022-04-18 18:52:08,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:08,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:52:08,703 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 18:52:08,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827961904] [2022-04-18 18:52:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:52:08,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:08,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:52:08,706 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 18:52:08,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-04-18 18:52:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:52:08,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:52:08,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:52:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:52:08,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:52:08,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:52:08,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945066504] [2022-04-18 18:52:08,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 18:52:08,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827961904] [2022-04-18 18:52:08,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827961904] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:52:08,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:52:08,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:52:08,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506867451] [2022-04-18 18:52:08,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:52:08,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:52:08,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:52:08,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:52:08,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:52:08,904 INFO L87 Difference]: Start difference. First operand 2274 states and 5035 transitions. Second operand has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:08,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:52:08,969 INFO L93 Difference]: Finished difference Result 2247 states and 4963 transitions. [2022-04-18 18:52:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:52:08,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-04-18 18:52:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:52:08,970 INFO L225 Difference]: With dead ends: 2247 [2022-04-18 18:52:08,970 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 18:52:08,970 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 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 18:52:08,971 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 14 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:52:08,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 56 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:52:08,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 18:52:08,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 18:52:08,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:08,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 18:52:08,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2022-04-18 18:52:08,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:52:08,972 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 18:52:08,972 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:52:08,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 18:52:08,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 18:52:08,975 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2022-04-18 18:52:08,975 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2022-04-18 18:52:08,975 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2022-04-18 18:52:08,975 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2022-04-18 18:52:08,976 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2022-04-18 18:52:08,976 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2022-04-18 18:52:08,976 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2022-04-18 18:52:08,976 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2022-04-18 18:52:08,976 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 60 remaining) [2022-04-18 18:52:08,976 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 60 remaining) [2022-04-18 18:52:08,977 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2022-04-18 18:52:08,977 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2022-04-18 18:52:08,977 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2022-04-18 18:52:08,977 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2022-04-18 18:52:08,977 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2022-04-18 18:52:08,977 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2022-04-18 18:52:08,977 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2022-04-18 18:52:08,978 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2022-04-18 18:52:08,978 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2022-04-18 18:52:08,978 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2022-04-18 18:52:08,978 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2022-04-18 18:52:08,978 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2022-04-18 18:52:08,978 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2022-04-18 18:52:08,979 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err13ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2022-04-18 18:52:08,979 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2022-04-18 18:52:08,979 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2022-04-18 18:52:08,979 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2022-04-18 18:52:08,979 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2022-04-18 18:52:08,979 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2022-04-18 18:52:08,979 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2022-04-18 18:52:08,979 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2022-04-18 18:52:08,980 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2022-04-18 18:52:08,980 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2022-04-18 18:52:08,980 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2022-04-18 18:52:08,980 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err10ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2022-04-18 18:52:08,980 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2022-04-18 18:52:08,980 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2022-04-18 18:52:08,981 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2022-04-18 18:52:08,981 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2022-04-18 18:52:08,981 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2022-04-18 18:52:08,981 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2022-04-18 18:52:08,981 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2022-04-18 18:52:08,981 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2022-04-18 18:52:08,981 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2022-04-18 18:52:08,982 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2022-04-18 18:52:08,982 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2022-04-18 18:52:08,982 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2022-04-18 18:52:08,982 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2022-04-18 18:52:08,982 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err13ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2022-04-18 18:52:08,982 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2022-04-18 18:52:08,983 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2022-04-18 18:52:08,983 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2022-04-18 18:52:08,983 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2022-04-18 18:52:08,983 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2022-04-18 18:52:08,983 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2022-04-18 18:52:08,983 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2022-04-18 18:52:08,983 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2022-04-18 18:52:08,984 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2022-04-18 18:52:08,984 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2022-04-18 18:52:08,984 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err10ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2022-04-18 18:52:09,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-04-18 18:52:09,206 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:52:09,208 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:52:09,212 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 18:52:09,212 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 18:52:09,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:52:09 BasicIcfg [2022-04-18 18:52:09,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 18:52:09,215 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 18:52:09,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 18:52:09,215 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 18:52:09,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:51:21" (3/4) ... [2022-04-18 18:52:09,217 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 18:52:09,221 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-04-18 18:52:09,222 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-04-18 18:52:09,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-04-18 18:52:09,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 18:52:09,227 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 18:52:09,228 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 18:52:09,256 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 18:52:09,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 18:52:09,257 INFO L158 Benchmark]: Toolchain (without parser) took 48416.58ms. Allocated memory was 86.0MB in the beginning and 11.9GB in the end (delta: 11.8GB). Free memory was 63.6MB in the beginning and 10.1GB in the end (delta: -10.0GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2022-04-18 18:52:09,257 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:52:09,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.75ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 42.8MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-04-18 18:52:09,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.28ms. Allocated memory is still 86.0MB. Free memory was 42.8MB in the beginning and 39.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:52:09,257 INFO L158 Benchmark]: Boogie Preprocessor took 32.06ms. Allocated memory is still 86.0MB. Free memory was 39.8MB in the beginning and 37.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:52:09,258 INFO L158 Benchmark]: RCFGBuilder took 629.52ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 37.8MB in the beginning and 63.2MB in the end (delta: -25.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2022-04-18 18:52:09,258 INFO L158 Benchmark]: TraceAbstraction took 47230.78ms. Allocated memory was 104.9MB in the beginning and 11.9GB in the end (delta: 11.8GB). Free memory was 62.7MB in the beginning and 10.1GB in the end (delta: -10.0GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2022-04-18 18:52:09,258 INFO L158 Benchmark]: Witness Printer took 41.51ms. Allocated memory is still 11.9GB. Free memory was 10.1GB in the beginning and 10.1GB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 18:52:09,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory is still 59.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.75ms. Allocated memory is still 86.0MB. Free memory was 63.4MB in the beginning and 42.8MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.28ms. Allocated memory is still 86.0MB. Free memory was 42.8MB in the beginning and 39.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.06ms. Allocated memory is still 86.0MB. Free memory was 39.8MB in the beginning and 37.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 629.52ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 37.8MB in the beginning and 63.2MB in the end (delta: -25.4MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * TraceAbstraction took 47230.78ms. Allocated memory was 104.9MB in the beginning and 11.9GB in the end (delta: 11.8GB). Free memory was 62.7MB in the beginning and 10.1GB in the end (delta: -10.0GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 41.51ms. Allocated memory is still 11.9GB. Free memory was 10.1GB in the beginning and 10.1GB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.1s, 292 PlacesBefore, 111 PlacesAfterwards, 298 TransitionsBefore, 112 TransitionsAfterwards, 23022 CoEnabledTransitionPairs, 17 FixpointIterations, 105 TrivialSequentialCompositions, 208 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 5 ChoiceCompositions, 343 TotalNumberOfCompositions, 165604 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 84671, positive: 82237, positive conditional: 0, positive unconditional: 82237, negative: 2434, negative conditional: 0, negative unconditional: 2434, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19132, positive: 18911, positive conditional: 0, positive unconditional: 18911, negative: 221, negative conditional: 0, negative unconditional: 221, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19132, positive: 18186, positive conditional: 0, positive unconditional: 18186, negative: 946, negative conditional: 0, negative unconditional: 946, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 946, positive: 725, positive conditional: 0, positive unconditional: 725, negative: 218, negative conditional: 0, negative unconditional: 218, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10349, positive: 469, positive conditional: 0, positive unconditional: 469, negative: 367, negative conditional: 0, negative unconditional: 367, unknown: 9513, unknown conditional: 0, unknown unconditional: 9513] ], Cache Queries: [ total: 84671, positive: 63326, positive conditional: 0, positive unconditional: 63326, negative: 2213, negative conditional: 0, negative unconditional: 2213, unknown: 19132, unknown conditional: 0, unknown unconditional: 19132] , Statistics on independence cache: Total cache size (in pairs): 3555, Positive cache size: 3445, Positive conditional cache size: 0, Positive unconditional cache size: 3445, Negative cache size: 110, Negative conditional cache size: 0, Negative unconditional cache size: 110 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 762]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 766]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 462 locations, 60 error locations. Started 1 CEGAR loops. OverallTime: 47.0s, OverallIterations: 25, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 17.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2802 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2802 mSDsluCounter, 3137 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4145 mSDsCounter, 188 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5758 IncrementalHoareTripleChecker+Invalid, 5946 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 188 mSolverCounterUnsat, 1477 mSDtfsCounter, 5758 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 345 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55787occurred in iteration=17, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 11.4s AutomataMinimizationTime, 25 MinimizatonAttempts, 93737 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 531 NumberOfCodeBlocks, 511 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 524 ConstructedInterpolants, 0 QuantifiedInterpolants, 3068 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2175 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 28 InterpolantComputations, 24 PerfectInterpolantSequences, 31/62 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 18:52:09,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE