./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_bad.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_bad.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 a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:50:58,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:50:58,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:50:58,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:50:58,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:50:58,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:50:58,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:50:58,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:50:58,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:50:58,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:50:58,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:50:58,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:50:58,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:50:58,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:50:58,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:50:58,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:50:58,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:50:58,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:50:58,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:50:58,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:50:58,524 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:50:58,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:50:58,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:50:58,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:50:58,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:50:58,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:50:58,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:50:58,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:50:58,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:50:58,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:50:58,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:50:58,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:50:58,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:50:58,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:50:58,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:50:58,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:50:58,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:50:58,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:50:58,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:50:58,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:50:58,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:50:58,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:50:58,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:50:58,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:50:58,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:50:58,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:50:58,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:50:58,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:50:58,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:50:58,564 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:50:58,564 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:50:58,564 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:50:58,565 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:50:58,565 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:50:58,565 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:50:58,565 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:50:58,565 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:50:58,566 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:50:58,566 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:50:58,567 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:50:58,567 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:50:58,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:50:58,568 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:50:58,568 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:50:58,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:50:58,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:50:58,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:50:58,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:50:58,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:50:58,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:50:58,569 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:50:58,569 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:50:58,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:50:58,570 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:50:58,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:50:58,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:50:58,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:50:58,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:50:58,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:50:58,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:50:58,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:50:58,571 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:50:58,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:50:58,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:50:58,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:50:58,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:50:58,572 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc [2022-04-18 18:50:58,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:50:58,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:50:58,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:50:58,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:50:58,815 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:50:58,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2022-04-18 18:50:58,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a9716e66c/27bcb42cfde346d795b136fc76128d81/FLAG5bcd4f0fd [2022-04-18 18:50:59,275 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:50:59,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2022-04-18 18:50:59,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a9716e66c/27bcb42cfde346d795b136fc76128d81/FLAG5bcd4f0fd [2022-04-18 18:50:59,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a9716e66c/27bcb42cfde346d795b136fc76128d81 [2022-04-18 18:50:59,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:50:59,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:50:59,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:50:59,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:50:59,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:50:59,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c36441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59, skipping insertion in model container [2022-04-18 18:50:59,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:50:59,331 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:50:59,596 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_bad.i[30440,30453] [2022-04-18 18:50:59,605 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_bad.i[30895,30908] [2022-04-18 18:50:59,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:50:59,619 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:50:59,648 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_bad.i[30440,30453] [2022-04-18 18:50:59,650 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_bad.i[30895,30908] [2022-04-18 18:50:59,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:50:59,678 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:50:59,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59 WrapperNode [2022-04-18 18:50:59,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:50:59,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:50:59,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:50:59,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:50:59,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,726 INFO L137 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 237 [2022-04-18 18:50:59,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:50:59,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:50:59,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:50:59,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:50:59,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:50:59,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:50:59,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:50:59,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:50:59,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (1/1) ... [2022-04-18 18:50:59,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:50:59,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:50:59,790 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 18:50:59,791 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 18:50:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-04-18 18:50:59,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-04-18 18:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-04-18 18:50:59,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-04-18 18:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:50:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:50:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:50:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-04-18 18:50:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:50:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:50:59,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:50:59,819 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 18:50:59,931 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:50:59,932 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:51:00,194 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:51:00,200 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:51:00,200 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 18:51:00,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:51:00 BoogieIcfgContainer [2022-04-18 18:51:00,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:51:00,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:51:00,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:51:00,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:51:00,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:50:59" (1/3) ... [2022-04-18 18:51:00,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff84888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:51:00, skipping insertion in model container [2022-04-18 18:51:00,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:59" (2/3) ... [2022-04-18 18:51:00,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff84888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:51:00, skipping insertion in model container [2022-04-18 18:51:00,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:51:00" (3/3) ... [2022-04-18 18:51:00,209 INFO L111 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2022-04-18 18:51:00,212 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:51:00,212 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:51:00,212 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2022-04-18 18:51:00,212 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:51:00,296 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 18:51:00,327 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:51:00,331 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 18:51:00,331 INFO L341 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-04-18 18:51:00,349 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:51:00,356 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 283 transitions, 582 flow [2022-04-18 18:51:00,358 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 283 transitions, 582 flow [2022-04-18 18:51:00,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 278 places, 283 transitions, 582 flow [2022-04-18 18:51:00,416 INFO L129 PetriNetUnfolder]: 12/281 cut-off events. [2022-04-18 18:51:00,420 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 18:51:00,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 281 events. 12/281 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 712 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 190. Up to 2 conditions per place. [2022-04-18 18:51:00,436 INFO L116 LiptonReduction]: Number of co-enabled transitions 20196 [2022-04-18 18:51:13,553 INFO L131 LiptonReduction]: Checked pairs total: 136241 [2022-04-18 18:51:13,553 INFO L133 LiptonReduction]: Total number of compositions: 333 [2022-04-18 18:51:13,559 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 103 transitions, 222 flow [2022-04-18 18:51:13,788 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9655 states, 9330 states have (on average 3.135262593783494) internal successors, (29252), 9654 states have internal predecessors, (29252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:13,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 9655 states, 9330 states have (on average 3.135262593783494) internal successors, (29252), 9654 states have internal predecessors, (29252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:51:13,820 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:13,820 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:51:13,820 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:13,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:13,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1119, now seen corresponding path program 1 times [2022-04-18 18:51:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:13,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100759697] [2022-04-18 18:51:13,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:13,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:13,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:13,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:13,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100759697] [2022-04-18 18:51:13,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100759697] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:13,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:13,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:51:13,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124507009] [2022-04-18 18:51:13,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:13,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:51:13,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:13,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:51:13,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:51:13,955 INFO L87 Difference]: Start difference. First operand has 9655 states, 9330 states have (on average 3.135262593783494) internal successors, (29252), 9654 states have internal predecessors, (29252), 0 states have call successors, (0), 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 18:51:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:14,093 INFO L93 Difference]: Finished difference Result 6438 states and 19468 transitions. [2022-04-18 18:51:14,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:51:14,095 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 18:51:14,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:14,139 INFO L225 Difference]: With dead ends: 6438 [2022-04-18 18:51:14,139 INFO L226 Difference]: Without dead ends: 6437 [2022-04-18 18:51:14,140 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 18:51:14,143 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:14,147 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:14,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2022-04-18 18:51:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 6437. [2022-04-18 18:51:14,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6437 states, 6360 states have (on average 3.0606918238993712) internal successors, (19466), 6436 states have internal predecessors, (19466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6437 states to 6437 states and 19466 transitions. [2022-04-18 18:51:14,405 INFO L78 Accepts]: Start accepts. Automaton has 6437 states and 19466 transitions. Word has length 1 [2022-04-18 18:51:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:14,405 INFO L478 AbstractCegarLoop]: Abstraction has 6437 states and 19466 transitions. [2022-04-18 18:51:14,406 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 18:51:14,406 INFO L276 IsEmpty]: Start isEmpty. Operand 6437 states and 19466 transitions. [2022-04-18 18:51:14,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 18:51:14,406 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:14,406 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 18:51:14,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:51:14,407 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:14,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:14,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1220413045, now seen corresponding path program 1 times [2022-04-18 18:51:14,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:14,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953529799] [2022-04-18 18:51:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:14,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:14,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:14,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953529799] [2022-04-18 18:51:14,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953529799] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:14,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:14,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892504276] [2022-04-18 18:51:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:14,500 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:14,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:14,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:14,501 INFO L87 Difference]: Start difference. First operand 6437 states and 19466 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 18:51:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:14,704 INFO L93 Difference]: Finished difference Result 11066 states and 33573 transitions. [2022-04-18 18:51:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:14,704 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 18:51:14,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:14,752 INFO L225 Difference]: With dead ends: 11066 [2022-04-18 18:51:14,763 INFO L226 Difference]: Without dead ends: 11066 [2022-04-18 18:51:14,763 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 18:51:14,764 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 66 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:14,766 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 74 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:14,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-04-18 18:51:14,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 6619. [2022-04-18 18:51:15,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6619 states, 6542 states have (on average 3.0888107612350963) internal successors, (20207), 6618 states have internal predecessors, (20207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6619 states to 6619 states and 20207 transitions. [2022-04-18 18:51:15,090 INFO L78 Accepts]: Start accepts. Automaton has 6619 states and 20207 transitions. Word has length 6 [2022-04-18 18:51:15,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:15,091 INFO L478 AbstractCegarLoop]: Abstraction has 6619 states and 20207 transitions. [2022-04-18 18:51:15,093 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 18:51:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6619 states and 20207 transitions. [2022-04-18 18:51:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 18:51:15,094 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:15,095 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:15,095 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:51:15,095 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:15,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:15,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1473825542, now seen corresponding path program 1 times [2022-04-18 18:51:15,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:15,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348639372] [2022-04-18 18:51:15,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:15,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:15,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:15,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:15,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348639372] [2022-04-18 18:51:15,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348639372] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:15,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:15,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:15,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944455098] [2022-04-18 18:51:15,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:15,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:15,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:15,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:15,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:15,182 INFO L87 Difference]: Start difference. First operand 6619 states and 20207 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 18:51:15,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:15,428 INFO L93 Difference]: Finished difference Result 10776 states and 33077 transitions. [2022-04-18 18:51:15,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:15,429 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 18:51:15,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:15,522 INFO L225 Difference]: With dead ends: 10776 [2022-04-18 18:51:15,522 INFO L226 Difference]: Without dead ends: 10776 [2022-04-18 18:51:15,522 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 18:51:15,523 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 64 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:15,523 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 72 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:51:15,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10776 states. [2022-04-18 18:51:15,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10776 to 6834. [2022-04-18 18:51:15,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6834 states, 6759 states have (on average 3.116733244562805) internal successors, (21066), 6833 states have internal predecessors, (21066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:15,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6834 states to 6834 states and 21066 transitions. [2022-04-18 18:51:15,883 INFO L78 Accepts]: Start accepts. Automaton has 6834 states and 21066 transitions. Word has length 8 [2022-04-18 18:51:15,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:15,884 INFO L478 AbstractCegarLoop]: Abstraction has 6834 states and 21066 transitions. [2022-04-18 18:51:15,884 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 18:51:15,884 INFO L276 IsEmpty]: Start isEmpty. Operand 6834 states and 21066 transitions. [2022-04-18 18:51:15,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:51:15,885 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:15,885 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:15,885 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 18:51:15,886 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:15,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:15,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1493952117, now seen corresponding path program 1 times [2022-04-18 18:51:15,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:15,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052411982] [2022-04-18 18:51:15,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:15,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:16,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:16,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052411982] [2022-04-18 18:51:16,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052411982] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:16,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:16,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 18:51:16,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125843318] [2022-04-18 18:51:16,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:16,020 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 18:51:16,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:16,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 18:51:16,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 18:51:16,021 INFO L87 Difference]: Start difference. First operand 6834 states and 21066 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 18:51:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:16,483 INFO L93 Difference]: Finished difference Result 10990 states and 33564 transitions. [2022-04-18 18:51:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:51:16,483 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 18:51:16,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:16,524 INFO L225 Difference]: With dead ends: 10990 [2022-04-18 18:51:16,524 INFO L226 Difference]: Without dead ends: 10990 [2022-04-18 18:51:16,525 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 18:51:16,525 INFO L913 BasicCegarLoop]: 86 mSDtfsCounter, 239 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:16,525 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 198 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 18:51:16,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10990 states. [2022-04-18 18:51:16,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10990 to 10010. [2022-04-18 18:51:16,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 9935 states have (on average 3.158429793658782) internal successors, (31379), 10009 states have internal predecessors, (31379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 31379 transitions. [2022-04-18 18:51:16,770 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 31379 transitions. Word has length 10 [2022-04-18 18:51:16,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:16,770 INFO L478 AbstractCegarLoop]: Abstraction has 10010 states and 31379 transitions. [2022-04-18 18:51:16,770 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 18:51:16,770 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 31379 transitions. [2022-04-18 18:51:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:51:16,771 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:16,772 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:16,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 18:51:16,772 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:16,772 INFO L85 PathProgramCache]: Analyzing trace with hash -992829591, now seen corresponding path program 1 times [2022-04-18 18:51:16,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:16,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532025120] [2022-04-18 18:51:16,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:16,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:16,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:16,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532025120] [2022-04-18 18:51:16,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532025120] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:16,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:16,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:16,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317079525] [2022-04-18 18:51:16,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:16,836 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:16,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:16,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:16,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:16,836 INFO L87 Difference]: Start difference. First operand 10010 states and 31379 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 18:51:17,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:17,016 INFO L93 Difference]: Finished difference Result 10771 states and 33376 transitions. [2022-04-18 18:51:17,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:17,017 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 18:51:17,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:17,047 INFO L225 Difference]: With dead ends: 10771 [2022-04-18 18:51:17,047 INFO L226 Difference]: Without dead ends: 10771 [2022-04-18 18:51:17,047 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 18:51:17,049 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 71 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:17,049 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 44 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:17,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2022-04-18 18:51:17,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 10015. [2022-04-18 18:51:17,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10015 states, 9942 states have (on average 3.1244216455441562) internal successors, (31063), 10014 states have internal predecessors, (31063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:17,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10015 states to 10015 states and 31063 transitions. [2022-04-18 18:51:17,316 INFO L78 Accepts]: Start accepts. Automaton has 10015 states and 31063 transitions. Word has length 10 [2022-04-18 18:51:17,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:17,316 INFO L478 AbstractCegarLoop]: Abstraction has 10015 states and 31063 transitions. [2022-04-18 18:51:17,316 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 18:51:17,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10015 states and 31063 transitions. [2022-04-18 18:51:17,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 18:51:17,317 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:17,317 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:17,317 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 18:51:17,318 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:17,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:17,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1190321131, now seen corresponding path program 1 times [2022-04-18 18:51:17,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:17,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160169621] [2022-04-18 18:51:17,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:17,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:17,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:17,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160169621] [2022-04-18 18:51:17,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160169621] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:17,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:17,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:17,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151303224] [2022-04-18 18:51:17,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:17,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:17,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:17,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:17,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:17,352 INFO L87 Difference]: Start difference. First operand 10015 states and 31063 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:17,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:17,469 INFO L93 Difference]: Finished difference Result 10229 states and 31725 transitions. [2022-04-18 18:51:17,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:17,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-04-18 18:51:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:17,498 INFO L225 Difference]: With dead ends: 10229 [2022-04-18 18:51:17,498 INFO L226 Difference]: Without dead ends: 10229 [2022-04-18 18:51:17,499 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 18:51:17,499 INFO L913 BasicCegarLoop]: 44 mSDtfsCounter, 35 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:17,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 70 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:17,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10229 states. [2022-04-18 18:51:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10229 to 10229. [2022-04-18 18:51:17,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10229 states, 10160 states have (on average 3.1225393700787403) internal successors, (31725), 10228 states have internal predecessors, (31725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:17,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 31725 transitions. [2022-04-18 18:51:17,766 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 31725 transitions. Word has length 11 [2022-04-18 18:51:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:17,767 INFO L478 AbstractCegarLoop]: Abstraction has 10229 states and 31725 transitions. [2022-04-18 18:51:17,767 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 31725 transitions. [2022-04-18 18:51:17,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 18:51:17,768 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:17,769 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:17,769 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 18:51:17,769 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:17,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:17,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1754710353, now seen corresponding path program 1 times [2022-04-18 18:51:17,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:17,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309953726] [2022-04-18 18:51:17,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:17,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:17,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:17,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:17,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309953726] [2022-04-18 18:51:17,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309953726] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:17,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:17,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333583727] [2022-04-18 18:51:17,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:17,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:17,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:17,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:17,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:17,843 INFO L87 Difference]: Start difference. First operand 10229 states and 31725 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 18:51:18,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:18,005 INFO L93 Difference]: Finished difference Result 10711 states and 33181 transitions. [2022-04-18 18:51:18,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:18,006 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 18:51:18,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:18,039 INFO L225 Difference]: With dead ends: 10711 [2022-04-18 18:51:18,040 INFO L226 Difference]: Without dead ends: 10711 [2022-04-18 18:51:18,040 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 18:51:18,041 INFO L913 BasicCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:18,041 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 51 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:18,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10711 states. [2022-04-18 18:51:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10711 to 10411. [2022-04-18 18:51:18,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10411 states, 10342 states have (on average 3.120382904660607) internal successors, (32271), 10410 states have internal predecessors, (32271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:18,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10411 states to 10411 states and 32271 transitions. [2022-04-18 18:51:18,386 INFO L78 Accepts]: Start accepts. Automaton has 10411 states and 32271 transitions. Word has length 12 [2022-04-18 18:51:18,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:18,387 INFO L478 AbstractCegarLoop]: Abstraction has 10411 states and 32271 transitions. [2022-04-18 18:51:18,387 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 18:51:18,387 INFO L276 IsEmpty]: Start isEmpty. Operand 10411 states and 32271 transitions. [2022-04-18 18:51:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-18 18:51:18,388 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:18,388 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:18,388 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 18:51:18,388 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:18,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:18,389 INFO L85 PathProgramCache]: Analyzing trace with hash -741539398, now seen corresponding path program 1 times [2022-04-18 18:51:18,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:18,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121870762] [2022-04-18 18:51:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:18,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:18,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:18,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:18,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121870762] [2022-04-18 18:51:18,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121870762] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:18,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:18,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:51:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951587688] [2022-04-18 18:51:18,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:18,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:18,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:18,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:18,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:18,411 INFO L87 Difference]: Start difference. First operand 10411 states and 32271 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 18:51:18,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:18,541 INFO L93 Difference]: Finished difference Result 10817 states and 33484 transitions. [2022-04-18 18:51:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:18,541 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 18:51:18,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:18,565 INFO L225 Difference]: With dead ends: 10817 [2022-04-18 18:51:18,565 INFO L226 Difference]: Without dead ends: 10817 [2022-04-18 18:51:18,565 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 18:51:18,566 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 47 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:18,566 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 80 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:18,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10817 states. [2022-04-18 18:51:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 10817. [2022-04-18 18:51:18,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10817 states, 10748 states have (on average 3.1153703014514327) internal successors, (33484), 10816 states have internal predecessors, (33484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:18,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10817 states to 10817 states and 33484 transitions. [2022-04-18 18:51:18,758 INFO L78 Accepts]: Start accepts. Automaton has 10817 states and 33484 transitions. Word has length 14 [2022-04-18 18:51:18,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:18,759 INFO L478 AbstractCegarLoop]: Abstraction has 10817 states and 33484 transitions. [2022-04-18 18:51:18,759 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 18:51:18,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10817 states and 33484 transitions. [2022-04-18 18:51:18,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-18 18:51:18,760 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:18,760 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:18,761 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 18:51:18,761 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:18,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:18,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1599962124, now seen corresponding path program 1 times [2022-04-18 18:51:18,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:18,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399782714] [2022-04-18 18:51:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:18,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:18,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:18,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399782714] [2022-04-18 18:51:18,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399782714] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:18,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:18,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:18,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597628022] [2022-04-18 18:51:18,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:18,780 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:18,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:18,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:18,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:18,780 INFO L87 Difference]: Start difference. First operand 10817 states and 33484 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:19,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:19,007 INFO L93 Difference]: Finished difference Result 11031 states and 34134 transitions. [2022-04-18 18:51:19,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:19,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-04-18 18:51:19,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:19,029 INFO L225 Difference]: With dead ends: 11031 [2022-04-18 18:51:19,030 INFO L226 Difference]: Without dead ends: 11031 [2022-04-18 18:51:19,030 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 18:51:19,030 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 34 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:19,031 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 64 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2022-04-18 18:51:19,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 11031. [2022-04-18 18:51:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11031 states, 10966 states have (on average 3.112712018967718) internal successors, (34134), 11030 states have internal predecessors, (34134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11031 states to 11031 states and 34134 transitions. [2022-04-18 18:51:19,205 INFO L78 Accepts]: Start accepts. Automaton has 11031 states and 34134 transitions. Word has length 14 [2022-04-18 18:51:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:19,205 INFO L478 AbstractCegarLoop]: Abstraction has 11031 states and 34134 transitions. [2022-04-18 18:51:19,205 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 11031 states and 34134 transitions. [2022-04-18 18:51:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 18:51:19,207 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:19,207 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:19,208 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 18:51:19,208 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1376455774, now seen corresponding path program 1 times [2022-04-18 18:51:19,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:19,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945002708] [2022-04-18 18:51:19,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:19,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:19,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:19,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945002708] [2022-04-18 18:51:19,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945002708] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:19,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:19,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:19,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420373317] [2022-04-18 18:51:19,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:19,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:19,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:19,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:19,253 INFO L87 Difference]: Start difference. First operand 11031 states and 34134 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 18:51:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:19,481 INFO L93 Difference]: Finished difference Result 20190 states and 62674 transitions. [2022-04-18 18:51:19,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:19,481 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 18:51:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:19,527 INFO L225 Difference]: With dead ends: 20190 [2022-04-18 18:51:19,528 INFO L226 Difference]: Without dead ends: 20190 [2022-04-18 18:51:19,528 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 18:51:19,528 INFO L913 BasicCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:19,529 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 62 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:19,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20190 states. [2022-04-18 18:51:19,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20190 to 11271. [2022-04-18 18:51:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11271 states, 11212 states have (on average 3.107295754548698) internal successors, (34839), 11270 states have internal predecessors, (34839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:19,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11271 states to 11271 states and 34839 transitions. [2022-04-18 18:51:19,871 INFO L78 Accepts]: Start accepts. Automaton has 11271 states and 34839 transitions. Word has length 15 [2022-04-18 18:51:19,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:19,871 INFO L478 AbstractCegarLoop]: Abstraction has 11271 states and 34839 transitions. [2022-04-18 18:51:19,872 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 18:51:19,872 INFO L276 IsEmpty]: Start isEmpty. Operand 11271 states and 34839 transitions. [2022-04-18 18:51:19,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 18:51:19,873 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:19,874 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:19,874 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 18:51:19,874 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:19,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:19,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1514300879, now seen corresponding path program 1 times [2022-04-18 18:51:19,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:19,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710339104] [2022-04-18 18:51:19,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:19,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:19,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:19,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710339104] [2022-04-18 18:51:19,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710339104] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:19,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:19,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:19,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153630539] [2022-04-18 18:51:19,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:19,893 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:19,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:19,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:19,894 INFO L87 Difference]: Start difference. First operand 11271 states and 34839 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 18:51:20,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:20,030 INFO L93 Difference]: Finished difference Result 11840 states and 36520 transitions. [2022-04-18 18:51:20,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:20,031 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 18:51:20,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:20,063 INFO L225 Difference]: With dead ends: 11840 [2022-04-18 18:51:20,063 INFO L226 Difference]: Without dead ends: 11840 [2022-04-18 18:51:20,063 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 18:51:20,064 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 47 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:20,064 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 72 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:20,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11840 states. [2022-04-18 18:51:20,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11840 to 11507. [2022-04-18 18:51:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11507 states, 11454 states have (on average 3.102147721320063) internal successors, (35532), 11506 states have internal predecessors, (35532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11507 states to 11507 states and 35532 transitions. [2022-04-18 18:51:20,274 INFO L78 Accepts]: Start accepts. Automaton has 11507 states and 35532 transitions. Word has length 15 [2022-04-18 18:51:20,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:20,275 INFO L478 AbstractCegarLoop]: Abstraction has 11507 states and 35532 transitions. [2022-04-18 18:51:20,275 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 18:51:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 11507 states and 35532 transitions. [2022-04-18 18:51:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 18:51:20,277 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:20,277 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:20,277 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 18:51:20,278 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:20,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash -563112168, now seen corresponding path program 1 times [2022-04-18 18:51:20,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:20,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559532286] [2022-04-18 18:51:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:20,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:20,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:20,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559532286] [2022-04-18 18:51:20,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559532286] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:20,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:20,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:51:20,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839537170] [2022-04-18 18:51:20,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:20,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 18:51:20,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:20,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 18:51:20,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:51:20,353 INFO L87 Difference]: Start difference. First operand 11507 states and 35532 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 18:51:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:20,532 INFO L93 Difference]: Finished difference Result 11867 states and 36642 transitions. [2022-04-18 18:51:20,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 18:51:20,532 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 18:51:20,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:20,557 INFO L225 Difference]: With dead ends: 11867 [2022-04-18 18:51:20,558 INFO L226 Difference]: Without dead ends: 11867 [2022-04-18 18:51:20,558 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 18:51:20,558 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 134 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:20,559 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 43 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:20,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11867 states. [2022-04-18 18:51:20,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11867 to 11475. [2022-04-18 18:51:20,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11475 states, 11430 states have (on average 3.1027121609798773) internal successors, (35464), 11474 states have internal predecessors, (35464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:20,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11475 states to 11475 states and 35464 transitions. [2022-04-18 18:51:20,770 INFO L78 Accepts]: Start accepts. Automaton has 11475 states and 35464 transitions. Word has length 16 [2022-04-18 18:51:20,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:20,771 INFO L478 AbstractCegarLoop]: Abstraction has 11475 states and 35464 transitions. [2022-04-18 18:51:20,771 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 18:51:20,771 INFO L276 IsEmpty]: Start isEmpty. Operand 11475 states and 35464 transitions. [2022-04-18 18:51:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-18 18:51:20,773 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:20,773 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 18:51:20,774 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 18:51:20,774 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:20,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:20,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1659915374, now seen corresponding path program 1 times [2022-04-18 18:51:20,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:20,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916985997] [2022-04-18 18:51:20,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:20,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:20,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:20,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916985997] [2022-04-18 18:51:20,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916985997] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:20,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:20,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:51:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871187581] [2022-04-18 18:51:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:20,796 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:20,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:20,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:20,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:20,797 INFO L87 Difference]: Start difference. First operand 11475 states and 35464 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) 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 18:51:21,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:21,088 INFO L93 Difference]: Finished difference Result 19747 states and 60867 transitions. [2022-04-18 18:51:21,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:21,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) 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 18:51:21,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:21,134 INFO L225 Difference]: With dead ends: 19747 [2022-04-18 18:51:21,135 INFO L226 Difference]: Without dead ends: 19747 [2022-04-18 18:51:21,135 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 18:51:21,135 INFO L913 BasicCegarLoop]: 41 mSDtfsCounter, 67 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:21,136 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 71 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:21,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19747 states. [2022-04-18 18:51:21,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19747 to 11631. [2022-04-18 18:51:21,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11631 states, 11586 states have (on average 3.101070257206974) internal successors, (35929), 11630 states have internal predecessors, (35929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11631 states to 11631 states and 35929 transitions. [2022-04-18 18:51:21,389 INFO L78 Accepts]: Start accepts. Automaton has 11631 states and 35929 transitions. Word has length 17 [2022-04-18 18:51:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:21,389 INFO L478 AbstractCegarLoop]: Abstraction has 11631 states and 35929 transitions. [2022-04-18 18:51:21,389 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) 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 18:51:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 11631 states and 35929 transitions. [2022-04-18 18:51:21,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-18 18:51:21,392 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:21,392 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 18:51:21,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 18:51:21,392 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:21,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:21,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1689080973, now seen corresponding path program 1 times [2022-04-18 18:51:21,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:21,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802339003] [2022-04-18 18:51:21,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:21,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:21,404 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-18 18:51:21,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427394829] [2022-04-18 18:51:21,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:21,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:51:21,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:51:21,406 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 18:51:21,446 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 18:51:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:21,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:51:21,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:51:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:21,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:51:21,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:21,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802339003] [2022-04-18 18:51:21,564 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-18 18:51:21,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427394829] [2022-04-18 18:51:21,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427394829] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:21,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:21,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:21,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410379638] [2022-04-18 18:51:21,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:21,565 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:21,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:21,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:21,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:21,566 INFO L87 Difference]: Start difference. First operand 11631 states and 35929 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 18:51:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:21,709 INFO L93 Difference]: Finished difference Result 11761 states and 36334 transitions. [2022-04-18 18:51:21,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:21,710 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 18:51:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:21,735 INFO L225 Difference]: With dead ends: 11761 [2022-04-18 18:51:21,735 INFO L226 Difference]: Without dead ends: 11761 [2022-04-18 18:51:21,735 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 18:51:21,736 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 36 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:21,736 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 69 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:21,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11761 states. [2022-04-18 18:51:21,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11761 to 11761. [2022-04-18 18:51:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11761 states, 11724 states have (on average 3.0991129307403615) internal successors, (36334), 11760 states have internal predecessors, (36334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11761 states to 11761 states and 36334 transitions. [2022-04-18 18:51:21,940 INFO L78 Accepts]: Start accepts. Automaton has 11761 states and 36334 transitions. Word has length 17 [2022-04-18 18:51:21,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:21,940 INFO L478 AbstractCegarLoop]: Abstraction has 11761 states and 36334 transitions. [2022-04-18 18:51:21,940 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 18:51:21,941 INFO L276 IsEmpty]: Start isEmpty. Operand 11761 states and 36334 transitions. [2022-04-18 18:51:21,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 18:51:21,943 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:21,944 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:21,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-18 18:51:22,150 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,SelfDestructingSolverStorable13 [2022-04-18 18:51:22,156 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:22,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:22,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1799835531, now seen corresponding path program 1 times [2022-04-18 18:51:22,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:22,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109318602] [2022-04-18 18:51:22,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:22,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:22,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:22,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:22,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109318602] [2022-04-18 18:51:22,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109318602] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:22,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:22,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:51:22,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710315698] [2022-04-18 18:51:22,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:22,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:22,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:22,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:22,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:22,208 INFO L87 Difference]: Start difference. First operand 11761 states and 36334 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:22,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:22,358 INFO L93 Difference]: Finished difference Result 11910 states and 36763 transitions. [2022-04-18 18:51:22,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:22,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-04-18 18:51:22,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:22,392 INFO L225 Difference]: With dead ends: 11910 [2022-04-18 18:51:22,392 INFO L226 Difference]: Without dead ends: 11870 [2022-04-18 18:51:22,393 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 18:51:22,395 INFO L913 BasicCegarLoop]: 45 mSDtfsCounter, 45 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:22,395 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 71 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:22,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11870 states. [2022-04-18 18:51:22,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11870 to 11870. [2022-04-18 18:51:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11870 states, 11843 states have (on average 3.0960905176053366) internal successors, (36667), 11869 states have internal predecessors, (36667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11870 states to 11870 states and 36667 transitions. [2022-04-18 18:51:22,697 INFO L78 Accepts]: Start accepts. Automaton has 11870 states and 36667 transitions. Word has length 18 [2022-04-18 18:51:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:22,697 INFO L478 AbstractCegarLoop]: Abstraction has 11870 states and 36667 transitions. [2022-04-18 18:51:22,697 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:22,697 INFO L276 IsEmpty]: Start isEmpty. Operand 11870 states and 36667 transitions. [2022-04-18 18:51:22,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-18 18:51:22,700 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:22,700 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 18:51:22,700 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 18:51:22,701 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:22,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1066735657, now seen corresponding path program 1 times [2022-04-18 18:51:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:22,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908720752] [2022-04-18 18:51:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:22,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:22,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:22,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908720752] [2022-04-18 18:51:22,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908720752] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:22,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:22,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-18 18:51:22,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167925232] [2022-04-18 18:51:22,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:22,848 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 18:51:22,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:22,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 18:51:22,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-18 18:51:22,849 INFO L87 Difference]: Start difference. First operand 11870 states and 36667 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 18:51:23,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:23,379 INFO L93 Difference]: Finished difference Result 10924 states and 33644 transitions. [2022-04-18 18:51:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 18:51:23,381 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 18:51:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:23,407 INFO L225 Difference]: With dead ends: 10924 [2022-04-18 18:51:23,407 INFO L226 Difference]: Without dead ends: 10924 [2022-04-18 18:51:23,408 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-04-18 18:51:23,408 INFO L913 BasicCegarLoop]: 80 mSDtfsCounter, 302 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:23,408 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 272 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 18:51:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2022-04-18 18:51:23,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 7140. [2022-04-18 18:51:23,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7140 states, 7124 states have (on average 3.025266704098821) internal successors, (21552), 7139 states have internal predecessors, (21552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 21552 transitions. [2022-04-18 18:51:23,560 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 21552 transitions. Word has length 19 [2022-04-18 18:51:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:23,561 INFO L478 AbstractCegarLoop]: Abstraction has 7140 states and 21552 transitions. [2022-04-18 18:51:23,561 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 18:51:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 21552 transitions. [2022-04-18 18:51:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-18 18:51:23,565 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:23,565 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 18:51:23,565 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 18:51:23,565 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:23,566 INFO L85 PathProgramCache]: Analyzing trace with hash 101182862, now seen corresponding path program 1 times [2022-04-18 18:51:23,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:23,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959577840] [2022-04-18 18:51:23,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:23,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:23,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:23,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959577840] [2022-04-18 18:51:23,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959577840] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:23,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:51:23,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:51:23,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219888159] [2022-04-18 18:51:23,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:23,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:51:23,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:23,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:51:23,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:51:23,596 INFO L87 Difference]: Start difference. First operand 7140 states and 21552 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 18:51:23,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:23,670 INFO L93 Difference]: Finished difference Result 1512 states and 3968 transitions. [2022-04-18 18:51:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:51:23,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 18:51:23,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:23,674 INFO L225 Difference]: With dead ends: 1512 [2022-04-18 18:51:23,674 INFO L226 Difference]: Without dead ends: 1512 [2022-04-18 18:51:23,674 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 18:51:23,675 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 57 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:23,675 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 29 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:51:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2022-04-18 18:51:23,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1512. [2022-04-18 18:51:23,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1511 states have (on average 2.6260754467240237) internal successors, (3968), 1511 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 3968 transitions. [2022-04-18 18:51:23,694 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 3968 transitions. Word has length 19 [2022-04-18 18:51:23,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:23,694 INFO L478 AbstractCegarLoop]: Abstraction has 1512 states and 3968 transitions. [2022-04-18 18:51:23,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 18:51:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 3968 transitions. [2022-04-18 18:51:23,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 18:51:23,696 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:23,697 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:23,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 18:51:23,697 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:23,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:23,697 INFO L85 PathProgramCache]: Analyzing trace with hash 41218301, now seen corresponding path program 1 times [2022-04-18 18:51:23,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:23,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12958331] [2022-04-18 18:51:23,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:23,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:23,730 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 18:51:23,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:23,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12958331] [2022-04-18 18:51:23,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12958331] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 18:51:23,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17515729] [2022-04-18 18:51:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:23,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:51:23,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:51:23,732 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 18:51:23,763 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 18:51:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:23,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 18:51:23,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:51:23,890 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 18:51:23,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 18:51:23,933 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 18:51:23,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17515729] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 18:51:23,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [486963730] [2022-04-18 18:51:23,939 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 18:51:23,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 18:51:23,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-04-18 18:51:23,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767146132] [2022-04-18 18:51:23,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 18:51:23,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 18:51:23,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:23,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 18:51:23,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-04-18 18:51:23,941 INFO L87 Difference]: Start difference. First operand 1512 states and 3968 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 18:51:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:24,210 INFO L93 Difference]: Finished difference Result 4386 states and 11543 transitions. [2022-04-18 18:51:24,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:51:24,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 22 [2022-04-18 18:51:24,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:24,219 INFO L225 Difference]: With dead ends: 4386 [2022-04-18 18:51:24,219 INFO L226 Difference]: Without dead ends: 4386 [2022-04-18 18:51:24,219 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 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 18:51:24,220 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 383 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:24,220 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 111 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:51:24,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4386 states. [2022-04-18 18:51:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4386 to 4386. [2022-04-18 18:51:24,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4386 states, 4385 states have (on average 2.632383124287343) internal successors, (11543), 4385 states have internal predecessors, (11543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4386 states to 4386 states and 11543 transitions. [2022-04-18 18:51:24,282 INFO L78 Accepts]: Start accepts. Automaton has 4386 states and 11543 transitions. Word has length 22 [2022-04-18 18:51:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:24,284 INFO L478 AbstractCegarLoop]: Abstraction has 4386 states and 11543 transitions. [2022-04-18 18:51:24,284 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 18:51:24,284 INFO L276 IsEmpty]: Start isEmpty. Operand 4386 states and 11543 transitions. [2022-04-18 18:51:24,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-18 18:51:24,294 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:51:24,295 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:24,322 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 18:51:24,503 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,SelfDestructingSolverStorable17 [2022-04-18 18:51:24,503 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-04-18 18:51:24,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:51:24,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1043992436, now seen corresponding path program 2 times [2022-04-18 18:51:24,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:51:24,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201400540] [2022-04-18 18:51:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:51:24,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:51:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:51:24,587 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:51:24,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:51:24,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201400540] [2022-04-18 18:51:24,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201400540] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 18:51:24,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980788781] [2022-04-18 18:51:24,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-18 18:51:24,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:51:24,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:51:24,605 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 18:51:24,606 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 18:51:24,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-04-18 18:51:24,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 18:51:24,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 17 conjunts are in the unsatisfiable core [2022-04-18 18:51:24,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 18:51:24,797 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 18:51:24,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:51:24,821 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 18:51:24,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:51:24,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:51:24,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 18:51:24,846 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 18:51:24,846 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 18:51:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-04-18 18:51:24,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 18:51:24,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980788781] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:51:24,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 18:51:24,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-04-18 18:51:24,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60601991] [2022-04-18 18:51:24,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:51:24,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 18:51:24,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:51:24,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 18:51:24,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-04-18 18:51:24,861 INFO L87 Difference]: Start difference. First operand 4386 states and 11543 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:51:25,039 INFO L93 Difference]: Finished difference Result 4365 states and 11498 transitions. [2022-04-18 18:51:25,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 18:51:25,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-04-18 18:51:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:51:25,040 INFO L225 Difference]: With dead ends: 4365 [2022-04-18 18:51:25,040 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 18:51:25,040 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 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 18:51:25,040 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 111 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 18:51:25,041 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 51 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 18:51:25,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 18:51:25,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 18:51:25,041 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 18:51:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 18:51:25,041 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-04-18 18:51:25,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:51:25,041 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 18:51:25,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:51:25,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 18:51:25,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 18:51:25,043 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-04-18 18:51:25,044 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-04-18 18:51:25,045 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-04-18 18:51:25,046 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-04-18 18:51:25,047 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-04-18 18:51:25,067 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 18:51:25,259 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 18:51:25,261 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:51:25,264 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 18:51:25,264 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 18:51:25,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:51:25 BasicIcfg [2022-04-18 18:51:25,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 18:51:25,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 18:51:25,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 18:51:25,266 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 18:51:25,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:51:00" (3/4) ... [2022-04-18 18:51:25,268 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 18:51:25,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-04-18 18:51:25,272 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-04-18 18:51:25,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-04-18 18:51:25,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 18:51:25,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 18:51:25,275 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 18:51:25,300 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 18:51:25,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 18:51:25,301 INFO L158 Benchmark]: Toolchain (without parser) took 25998.85ms. Allocated memory was 117.4MB in the beginning and 3.5GB in the end (delta: 3.4GB). Free memory was 78.0MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 871.9MB. Max. memory is 16.1GB. [2022-04-18 18:51:25,301 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 117.4MB. Free memory was 95.9MB in the beginning and 95.7MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:51:25,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.48ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 83.7MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 18:51:25,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.58ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 80.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:51:25,302 INFO L158 Benchmark]: Boogie Preprocessor took 34.65ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:51:25,302 INFO L158 Benchmark]: RCFGBuilder took 439.61ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 57.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-04-18 18:51:25,303 INFO L158 Benchmark]: TraceAbstraction took 25063.05ms. Allocated memory was 117.4MB in the beginning and 3.5GB in the end (delta: 3.4GB). Free memory was 57.0MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 851.0MB. Max. memory is 16.1GB. [2022-04-18 18:51:25,303 INFO L158 Benchmark]: Witness Printer took 34.36ms. Allocated memory is still 3.5GB. Free memory was 2.6GB in the beginning and 2.6GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:51:25,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 117.4MB. Free memory was 95.9MB in the beginning and 95.7MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.48ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 83.7MB in the end (delta: -5.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.58ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 80.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.65ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.61ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 57.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 25063.05ms. Allocated memory was 117.4MB in the beginning and 3.5GB in the end (delta: 3.4GB). Free memory was 57.0MB in the beginning and 2.6GB in the end (delta: -2.5GB). Peak memory consumption was 851.0MB. Max. memory is 16.1GB. * Witness Printer took 34.36ms. Allocated memory is still 3.5GB. Free memory was 2.6GB in the beginning and 2.6GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.2s, 278 PlacesBefore, 102 PlacesAfterwards, 283 TransitionsBefore, 103 TransitionsAfterwards, 20196 CoEnabledTransitionPairs, 17 FixpointIterations, 108 TrivialSequentialCompositions, 206 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 333 TotalNumberOfCompositions, 136241 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 61627, positive: 59459, positive conditional: 0, positive unconditional: 59459, negative: 2168, negative conditional: 0, negative unconditional: 2168, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16081, positive: 15898, positive conditional: 0, positive unconditional: 15898, negative: 183, negative conditional: 0, negative unconditional: 183, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16081, positive: 15138, positive conditional: 0, positive unconditional: 15138, negative: 943, negative conditional: 0, negative unconditional: 943, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 943, positive: 760, positive conditional: 0, positive unconditional: 760, negative: 181, negative conditional: 0, negative unconditional: 181, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7477, positive: 356, positive conditional: 0, positive unconditional: 356, negative: 232, negative conditional: 0, negative unconditional: 232, unknown: 6889, unknown conditional: 0, unknown unconditional: 6889] ], Cache Queries: [ total: 61627, positive: 43561, positive conditional: 0, positive unconditional: 43561, negative: 1985, negative conditional: 0, negative unconditional: 1985, unknown: 16081, unknown conditional: 0, unknown unconditional: 16081] , Statistics on independence cache: Total cache size (in pairs): 2525, Positive cache size: 2426, Positive conditional cache size: 0, Positive unconditional cache size: 2426, Negative cache size: 99, Negative conditional cache size: 0, Negative unconditional cache size: 99 - 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: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: 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: 730]: 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: 731]: 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: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 435 locations, 56 error locations. Started 1 CEGAR loops. OverallTime: 24.9s, OverallIterations: 19, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1831 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1831 mSDsluCounter, 1534 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2290 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3757 IncrementalHoareTripleChecker+Invalid, 3846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 817 mSDtfsCounter, 3757 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11870occurred in iteration=15, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 31969 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 340 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 626 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 22 InterpolantComputations, 18 PerfectInterpolantSequences, 34/71 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 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 18:51:25,366 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