./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:13:42,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:13:42,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:13:42,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:13:42,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:13:42,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:13:42,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:13:42,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:13:42,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:13:42,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:13:42,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:13:42,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:13:42,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:13:42,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:13:42,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:13:42,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:13:42,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:13:42,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:13:42,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:13:42,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:13:42,732 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:13:42,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:13:42,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:13:42,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:13:42,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:13:42,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:13:42,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:13:42,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:13:42,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:13:42,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:13:42,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:13:42,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:13:42,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:13:42,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:13:42,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:13:42,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:13:42,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:13:42,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:13:42,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:13:42,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:13:42,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:13:42,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:13:42,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:13:42,770 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:13:42,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:13:42,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:13:42,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:13:42,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:13:42,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:13:42,775 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:13:42,775 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:13:42,775 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:13:42,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:13:42,776 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:13:42,776 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:13:42,776 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:13:42,776 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:13:42,776 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:13:42,776 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:13:42,776 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:13:42,777 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:13:42,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:13:42,778 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:13:42,778 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:13:42,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:13:42,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:13:42,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:13:42,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:13:42,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:13:42,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:13:42,779 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:13:42,779 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:13:42,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:13:42,779 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:13:42,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:13:42,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:13:42,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:13:42,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:13:42,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:13:42,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:13:42,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:13:42,781 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:13:42,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:13:42,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:13:42,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:13:42,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:13:42,781 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2022-04-18 20:13:42,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:13:43,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:13:43,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:13:43,006 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:13:43,007 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:13:43,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok.i [2022-04-18 20:13:43,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/716461295/439d6f9f47b14205b8606027c926edee/FLAGe5d51bef1 [2022-04-18 20:13:43,481 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:13:43,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_ok.i [2022-04-18 20:13:43,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/716461295/439d6f9f47b14205b8606027c926edee/FLAGe5d51bef1 [2022-04-18 20:13:43,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/716461295/439d6f9f47b14205b8606027c926edee [2022-04-18 20:13:43,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:13:43,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:13:43,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:13:43,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:13:43,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:13:43,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:43,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147f3f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43, skipping insertion in model container [2022-04-18 20:13:43,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:43,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:13:43,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:13:43,836 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/queue_ok.i[43266,43279] [2022-04-18 20:13:43,838 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/queue_ok.i[43543,43556] [2022-04-18 20:13:43,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:13:43,847 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:13:43,879 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/queue_ok.i[43266,43279] [2022-04-18 20:13:43,881 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/queue_ok.i[43543,43556] [2022-04-18 20:13:43,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:13:43,915 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:13:43,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43 WrapperNode [2022-04-18 20:13:43,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:13:43,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:13:43,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:13:43,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:13:43,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:43,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,001 INFO L137 Inliner]: procedures = 274, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 389 [2022-04-18 20:13:44,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:13:44,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:13:44,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:13:44,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:13:44,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:13:44,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:13:44,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:13:44,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:13:44,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (1/1) ... [2022-04-18 20:13:44,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:13:44,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:13:44,126 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 20:13:44,128 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 20:13:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-04-18 20:13:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-04-18 20:13:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-04-18 20:13:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-04-18 20:13:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:13:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:13:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:13:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:13:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 20:13:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:13:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:13:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:13:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:13:44,154 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 20:13:44,256 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:13:44,257 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:13:44,751 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:13:44,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:13:44,767 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 20:13:44,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:44 BoogieIcfgContainer [2022-04-18 20:13:44,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:13:44,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:13:44,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:13:44,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:13:44,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:13:43" (1/3) ... [2022-04-18 20:13:44,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5300c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:44, skipping insertion in model container [2022-04-18 20:13:44,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:13:43" (2/3) ... [2022-04-18 20:13:44,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5300c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:13:44, skipping insertion in model container [2022-04-18 20:13:44,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:13:44" (3/3) ... [2022-04-18 20:13:44,777 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2022-04-18 20:13:44,781 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:13:44,781 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:13:44,781 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-04-18 20:13:44,781 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:13:44,906 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 20:13:44,948 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:13:44,953 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 20:13:44,953 INFO L341 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-04-18 20:13:44,966 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:13:44,973 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 443 places, 449 transitions, 914 flow [2022-04-18 20:13:44,975 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 443 places, 449 transitions, 914 flow [2022-04-18 20:13:44,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 443 places, 449 transitions, 914 flow [2022-04-18 20:13:45,116 INFO L129 PetriNetUnfolder]: 13/447 cut-off events. [2022-04-18 20:13:45,116 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 20:13:45,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 447 events. 13/447 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 794 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-04-18 20:13:45,169 INFO L116 LiptonReduction]: Number of co-enabled transitions 53036 [2022-04-18 20:14:32,117 WARN L232 SmtUtils]: Spent 17.95s on a formula simplification. DAG size of input: 179 DAG size of output: 162 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:53,458 WARN L232 SmtUtils]: Spent 17.47s on a formula simplification. DAG size of input: 186 DAG size of output: 169 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:14:59,979 WARN L232 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:07,678 WARN L232 SmtUtils]: Spent 7.68s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:14,773 WARN L232 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:36,952 WARN L232 SmtUtils]: Spent 18.38s on a formula simplification. DAG size of input: 222 DAG size of output: 218 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:15:46,145 WARN L232 SmtUtils]: Spent 9.19s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:16:03,137 WARN L232 SmtUtils]: Spent 16.99s on a formula simplification. DAG size of input: 228 DAG size of output: 224 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:16:11,159 WARN L232 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 20:16:11,165 INFO L131 LiptonReduction]: Checked pairs total: 498070 [2022-04-18 20:16:11,165 INFO L133 LiptonReduction]: Total number of compositions: 318 [2022-04-18 20:16:11,171 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 207 places, 207 transitions, 430 flow [2022-04-18 20:16:12,351 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:12,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:16:12,474 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:12,474 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:16:12,475 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:12,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:12,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1599, now seen corresponding path program 1 times [2022-04-18 20:16:12,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:12,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040742112] [2022-04-18 20:16:12,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:12,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:12,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040742112] [2022-04-18 20:16:12,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040742112] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:12,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:12,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:16:12,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79226612] [2022-04-18 20:16:12,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:12,641 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:16:12,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:12,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:16:12,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:16:12,732 INFO L87 Difference]: Start difference. First operand has 59684 states, 59273 states have (on average 2.9389266613803926) internal successors, (174199), 59683 states have internal predecessors, (174199), 0 states have call successors, (0), 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 20:16:13,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:14,000 INFO L93 Difference]: Finished difference Result 59677 states and 174192 transitions. [2022-04-18 20:16:14,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:16:14,004 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 20:16:14,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:14,395 INFO L225 Difference]: With dead ends: 59677 [2022-04-18 20:16:14,396 INFO L226 Difference]: Without dead ends: 59677 [2022-04-18 20:16:14,397 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 20:16:14,402 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:14,403 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:16:14,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59677 states. [2022-04-18 20:16:16,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59677 to 59677. [2022-04-18 20:16:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59677 states, 59273 states have (on average 2.9388085637642773) internal successors, (174192), 59676 states have internal predecessors, (174192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59677 states to 59677 states and 174192 transitions. [2022-04-18 20:16:16,418 INFO L78 Accepts]: Start accepts. Automaton has 59677 states and 174192 transitions. Word has length 1 [2022-04-18 20:16:16,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:16,418 INFO L478 AbstractCegarLoop]: Abstraction has 59677 states and 174192 transitions. [2022-04-18 20:16:16,418 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 20:16:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 59677 states and 174192 transitions. [2022-04-18 20:16:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 20:16:16,419 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:16,419 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 20:16:16,419 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:16:16,420 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1520133762, now seen corresponding path program 1 times [2022-04-18 20:16:16,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:16,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752492911] [2022-04-18 20:16:16,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:16,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:16,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:16,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752492911] [2022-04-18 20:16:16,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752492911] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:16,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:16,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:16:16,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115359652] [2022-04-18 20:16:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:16,526 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:16,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:16,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:16,527 INFO L87 Difference]: Start difference. First operand 59677 states and 174192 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:17,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:17,511 INFO L93 Difference]: Finished difference Result 63178 states and 182454 transitions. [2022-04-18 20:16:17,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:17,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-04-18 20:16:17,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:17,699 INFO L225 Difference]: With dead ends: 63178 [2022-04-18 20:16:17,699 INFO L226 Difference]: Without dead ends: 63178 [2022-04-18 20:16:17,700 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 20:16:17,704 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 182 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:17,704 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 325 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:16:17,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63178 states. [2022-04-18 20:16:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63178 to 59011. [2022-04-18 20:16:19,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59011 states, 58633 states have (on average 2.9382600242184433) internal successors, (172279), 59010 states have internal predecessors, (172279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59011 states to 59011 states and 172279 transitions. [2022-04-18 20:16:19,322 INFO L78 Accepts]: Start accepts. Automaton has 59011 states and 172279 transitions. Word has length 5 [2022-04-18 20:16:19,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:19,323 INFO L478 AbstractCegarLoop]: Abstraction has 59011 states and 172279 transitions. [2022-04-18 20:16:19,323 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:19,323 INFO L276 IsEmpty]: Start isEmpty. Operand 59011 states and 172279 transitions. [2022-04-18 20:16:19,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 20:16:19,324 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:19,324 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:19,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:16:19,324 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:19,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:19,325 INFO L85 PathProgramCache]: Analyzing trace with hash 557762083, now seen corresponding path program 1 times [2022-04-18 20:16:19,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:19,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509176401] [2022-04-18 20:16:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:19,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:19,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:19,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509176401] [2022-04-18 20:16:19,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509176401] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:19,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:19,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:16:19,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554741249] [2022-04-18 20:16:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:19,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:19,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:19,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:19,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:19,411 INFO L87 Difference]: Start difference. First operand 59011 states and 172279 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:19,939 INFO L93 Difference]: Finished difference Result 63552 states and 183653 transitions. [2022-04-18 20:16:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:19,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-04-18 20:16:19,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:20,158 INFO L225 Difference]: With dead ends: 63552 [2022-04-18 20:16:20,158 INFO L226 Difference]: Without dead ends: 63552 [2022-04-18 20:16:20,159 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 20:16:20,161 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 180 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:20,166 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 312 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:16:20,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63552 states. [2022-04-18 20:16:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63552 to 58459. [2022-04-18 20:16:21,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58459 states, 58101 states have (on average 2.9378496067193334) internal successors, (170692), 58458 states have internal predecessors, (170692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:21,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58459 states to 58459 states and 170692 transitions. [2022-04-18 20:16:21,619 INFO L78 Accepts]: Start accepts. Automaton has 58459 states and 170692 transitions. Word has length 7 [2022-04-18 20:16:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:21,620 INFO L478 AbstractCegarLoop]: Abstraction has 58459 states and 170692 transitions. [2022-04-18 20:16:21,620 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:21,620 INFO L276 IsEmpty]: Start isEmpty. Operand 58459 states and 170692 transitions. [2022-04-18 20:16:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 20:16:21,622 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:21,622 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:21,622 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:16:21,622 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:21,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:21,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1009993156, now seen corresponding path program 1 times [2022-04-18 20:16:21,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:21,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339228625] [2022-04-18 20:16:21,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:21,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:21,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:21,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339228625] [2022-04-18 20:16:21,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339228625] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:21,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:21,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:16:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283324221] [2022-04-18 20:16:21,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:21,699 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:21,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:21,700 INFO L87 Difference]: Start difference. First operand 58459 states and 170692 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:22,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:22,496 INFO L93 Difference]: Finished difference Result 105691 states and 308646 transitions. [2022-04-18 20:16:22,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:22,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-04-18 20:16:22,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:22,809 INFO L225 Difference]: With dead ends: 105691 [2022-04-18 20:16:22,809 INFO L226 Difference]: Without dead ends: 105691 [2022-04-18 20:16:22,809 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 20:16:22,810 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 168 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:22,810 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 323 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:16:23,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105691 states. [2022-04-18 20:16:24,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105691 to 59197. [2022-04-18 20:16:24,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59197 states, 58839 states have (on average 2.9374394534237496) internal successors, (172836), 59196 states have internal predecessors, (172836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59197 states to 59197 states and 172836 transitions. [2022-04-18 20:16:24,687 INFO L78 Accepts]: Start accepts. Automaton has 59197 states and 172836 transitions. Word has length 9 [2022-04-18 20:16:24,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:24,688 INFO L478 AbstractCegarLoop]: Abstraction has 59197 states and 172836 transitions. [2022-04-18 20:16:24,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:24,688 INFO L276 IsEmpty]: Start isEmpty. Operand 59197 states and 172836 transitions. [2022-04-18 20:16:24,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 20:16:24,689 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:24,689 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:24,689 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:16:24,689 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:24,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:24,690 INFO L85 PathProgramCache]: Analyzing trace with hash 85709313, now seen corresponding path program 1 times [2022-04-18 20:16:24,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:24,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32516935] [2022-04-18 20:16:24,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:24,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:24,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:24,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32516935] [2022-04-18 20:16:24,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32516935] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:24,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:24,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:16:24,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670126453] [2022-04-18 20:16:24,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:24,789 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:16:24,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:16:24,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:16:24,790 INFO L87 Difference]: Start difference. First operand 59197 states and 172836 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 20:16:26,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:26,482 INFO L93 Difference]: Finished difference Result 96232 states and 278030 transitions. [2022-04-18 20:16:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:16:26,483 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 20:16:26,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:26,767 INFO L225 Difference]: With dead ends: 96232 [2022-04-18 20:16:26,768 INFO L226 Difference]: Without dead ends: 96232 [2022-04-18 20:16:26,768 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 20:16:26,768 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 403 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:26,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 291 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-18 20:16:26,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96232 states. [2022-04-18 20:16:28,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96232 to 88221. [2022-04-18 20:16:28,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88221 states, 87863 states have (on average 2.9769299932850006) internal successors, (261562), 88220 states have internal predecessors, (261562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88221 states to 88221 states and 261562 transitions. [2022-04-18 20:16:28,979 INFO L78 Accepts]: Start accepts. Automaton has 88221 states and 261562 transitions. Word has length 10 [2022-04-18 20:16:28,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:28,980 INFO L478 AbstractCegarLoop]: Abstraction has 88221 states and 261562 transitions. [2022-04-18 20:16:28,980 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 20:16:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand 88221 states and 261562 transitions. [2022-04-18 20:16:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 20:16:28,981 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:28,981 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:28,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:16:28,982 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:28,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:28,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1022811786, now seen corresponding path program 1 times [2022-04-18 20:16:28,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:28,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490051047] [2022-04-18 20:16:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:28,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:29,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:29,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490051047] [2022-04-18 20:16:29,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490051047] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:29,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:29,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:16:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071850267] [2022-04-18 20:16:29,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:29,021 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:29,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:29,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:29,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:29,022 INFO L87 Difference]: Start difference. First operand 88221 states and 261562 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) 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 20:16:30,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:30,330 INFO L93 Difference]: Finished difference Result 161679 states and 478719 transitions. [2022-04-18 20:16:30,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:30,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) 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 20:16:30,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:30,873 INFO L225 Difference]: With dead ends: 161679 [2022-04-18 20:16:30,873 INFO L226 Difference]: Without dead ends: 161679 [2022-04-18 20:16:30,874 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 20:16:30,874 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 173 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:30,874 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 313 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:16:31,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161679 states. [2022-04-18 20:16:33,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161679 to 89147. [2022-04-18 20:16:33,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89147 states, 88789 states have (on average 2.976404734820755) internal successors, (264272), 89146 states have internal predecessors, (264272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:33,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89147 states to 89147 states and 264272 transitions. [2022-04-18 20:16:33,732 INFO L78 Accepts]: Start accepts. Automaton has 89147 states and 264272 transitions. Word has length 11 [2022-04-18 20:16:33,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:33,733 INFO L478 AbstractCegarLoop]: Abstraction has 89147 states and 264272 transitions. [2022-04-18 20:16:33,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) 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 20:16:33,733 INFO L276 IsEmpty]: Start isEmpty. Operand 89147 states and 264272 transitions. [2022-04-18 20:16:34,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 20:16:34,082 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:34,082 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:34,082 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:16:34,083 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:34,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:34,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1239283502, now seen corresponding path program 1 times [2022-04-18 20:16:34,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:34,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006750168] [2022-04-18 20:16:34,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:34,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:34,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:34,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:34,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006750168] [2022-04-18 20:16:34,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006750168] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:34,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:34,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:16:34,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807363646] [2022-04-18 20:16:34,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:34,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:16:34,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:34,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:16:34,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:16:34,265 INFO L87 Difference]: Start difference. First operand 89147 states and 264272 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:35,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:35,687 INFO L93 Difference]: Finished difference Result 113249 states and 336147 transitions. [2022-04-18 20:16:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:16:35,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-04-18 20:16:35,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:36,090 INFO L225 Difference]: With dead ends: 113249 [2022-04-18 20:16:36,091 INFO L226 Difference]: Without dead ends: 113249 [2022-04-18 20:16:36,091 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 20:16:36,091 INFO L913 BasicCegarLoop]: 153 mSDtfsCounter, 232 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:36,093 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 232 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-18 20:16:36,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113249 states. [2022-04-18 20:16:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113249 to 101633. [2022-04-18 20:16:38,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101633 states, 101275 states have (on average 2.982009380399901) internal successors, (302003), 101632 states have internal predecessors, (302003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101633 states to 101633 states and 302003 transitions. [2022-04-18 20:16:38,865 INFO L78 Accepts]: Start accepts. Automaton has 101633 states and 302003 transitions. Word has length 12 [2022-04-18 20:16:38,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:38,866 INFO L478 AbstractCegarLoop]: Abstraction has 101633 states and 302003 transitions. [2022-04-18 20:16:38,866 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:38,866 INFO L276 IsEmpty]: Start isEmpty. Operand 101633 states and 302003 transitions. [2022-04-18 20:16:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-18 20:16:38,867 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:38,871 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:38,872 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 20:16:38,872 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:38,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:38,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1173524087, now seen corresponding path program 1 times [2022-04-18 20:16:38,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:38,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920537829] [2022-04-18 20:16:38,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:38,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:38,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:38,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920537829] [2022-04-18 20:16:38,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920537829] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:38,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:38,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:16:38,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059623526] [2022-04-18 20:16:38,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:38,968 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:16:38,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:38,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:16:38,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:16:38,968 INFO L87 Difference]: Start difference. First operand 101633 states and 302003 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 20:16:40,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:40,665 INFO L93 Difference]: Finished difference Result 142430 states and 422331 transitions. [2022-04-18 20:16:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:16:40,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 20:16:40,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:41,118 INFO L225 Difference]: With dead ends: 142430 [2022-04-18 20:16:41,119 INFO L226 Difference]: Without dead ends: 142430 [2022-04-18 20:16:41,119 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 20:16:41,119 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 282 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:41,119 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 186 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-18 20:16:41,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142430 states. [2022-04-18 20:16:43,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142430 to 104773. [2022-04-18 20:16:43,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104773 states, 104421 states have (on average 2.9798220664425736) internal successors, (311156), 104772 states have internal predecessors, (311156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:44,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104773 states to 104773 states and 311156 transitions. [2022-04-18 20:16:44,280 INFO L78 Accepts]: Start accepts. Automaton has 104773 states and 311156 transitions. Word has length 14 [2022-04-18 20:16:44,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:44,280 INFO L478 AbstractCegarLoop]: Abstraction has 104773 states and 311156 transitions. [2022-04-18 20:16:44,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 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 20:16:44,281 INFO L276 IsEmpty]: Start isEmpty. Operand 104773 states and 311156 transitions. [2022-04-18 20:16:44,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-18 20:16:44,283 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:44,283 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 20:16:44,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 20:16:44,284 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2105408927, now seen corresponding path program 1 times [2022-04-18 20:16:44,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:44,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484800820] [2022-04-18 20:16:44,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:44,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:44,366 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:44,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484800820] [2022-04-18 20:16:44,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484800820] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:44,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:44,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:16:44,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943910658] [2022-04-18 20:16:44,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:44,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:16:44,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:44,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:16:44,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:16:44,369 INFO L87 Difference]: Start difference. First operand 104773 states and 311156 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 20:16:46,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:46,067 INFO L93 Difference]: Finished difference Result 107689 states and 319619 transitions. [2022-04-18 20:16:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:16:46,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 20:16:46,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:46,409 INFO L225 Difference]: With dead ends: 107689 [2022-04-18 20:16:46,409 INFO L226 Difference]: Without dead ends: 107689 [2022-04-18 20:16:46,409 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 20:16:46,409 INFO L913 BasicCegarLoop]: 162 mSDtfsCounter, 224 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:46,410 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 232 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-18 20:16:46,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107689 states. [2022-04-18 20:16:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107689 to 107689. [2022-04-18 20:16:48,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107689 states, 107337 states have (on average 2.9777150470015) internal successors, (319619), 107688 states have internal predecessors, (319619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:49,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107689 states to 107689 states and 319619 transitions. [2022-04-18 20:16:49,130 INFO L78 Accepts]: Start accepts. Automaton has 107689 states and 319619 transitions. Word has length 18 [2022-04-18 20:16:49,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:49,130 INFO L478 AbstractCegarLoop]: Abstraction has 107689 states and 319619 transitions. [2022-04-18 20:16:49,131 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 20:16:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 107689 states and 319619 transitions. [2022-04-18 20:16:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-18 20:16:49,134 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:49,134 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:49,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 20:16:49,134 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:49,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:49,134 INFO L85 PathProgramCache]: Analyzing trace with hash -952031749, now seen corresponding path program 1 times [2022-04-18 20:16:49,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:49,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975691340] [2022-04-18 20:16:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:49,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:49,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:49,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975691340] [2022-04-18 20:16:49,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975691340] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:49,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:49,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:16:49,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725761283] [2022-04-18 20:16:49,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:49,167 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:49,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:49,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:49,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:49,168 INFO L87 Difference]: Start difference. First operand 107689 states and 319619 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:49,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:49,289 INFO L93 Difference]: Finished difference Result 12681 states and 34447 transitions. [2022-04-18 20:16:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:49,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-04-18 20:16:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:49,320 INFO L225 Difference]: With dead ends: 12681 [2022-04-18 20:16:49,320 INFO L226 Difference]: Without dead ends: 12677 [2022-04-18 20:16:49,320 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 20:16:49,321 INFO L913 BasicCegarLoop]: 128 mSDtfsCounter, 101 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:49,322 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 205 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:16:49,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12677 states. [2022-04-18 20:16:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12677 to 12476. [2022-04-18 20:16:49,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12476 states, 12378 states have (on average 2.7448699305218938) internal successors, (33976), 12475 states have internal predecessors, (33976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:49,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12476 states to 12476 states and 33976 transitions. [2022-04-18 20:16:49,539 INFO L78 Accepts]: Start accepts. Automaton has 12476 states and 33976 transitions. Word has length 20 [2022-04-18 20:16:49,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:49,540 INFO L478 AbstractCegarLoop]: Abstraction has 12476 states and 33976 transitions. [2022-04-18 20:16:49,540 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:49,540 INFO L276 IsEmpty]: Start isEmpty. Operand 12476 states and 33976 transitions. [2022-04-18 20:16:49,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-18 20:16:49,542 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:49,542 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:49,542 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 20:16:49,542 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:49,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:49,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1733582834, now seen corresponding path program 1 times [2022-04-18 20:16:49,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:49,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671356008] [2022-04-18 20:16:49,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:49,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:49,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:49,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671356008] [2022-04-18 20:16:49,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671356008] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:49,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:49,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 20:16:49,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859654612] [2022-04-18 20:16:49,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:49,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:16:49,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:49,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:16:49,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 20:16:49,579 INFO L87 Difference]: Start difference. First operand 12476 states and 33976 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:49,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:49,683 INFO L93 Difference]: Finished difference Result 12568 states and 34142 transitions. [2022-04-18 20:16:49,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:16:49,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-04-18 20:16:49,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:49,720 INFO L225 Difference]: With dead ends: 12568 [2022-04-18 20:16:49,720 INFO L226 Difference]: Without dead ends: 12568 [2022-04-18 20:16:49,720 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 20:16:49,721 INFO L913 BasicCegarLoop]: 134 mSDtfsCounter, 86 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:49,721 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 214 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:16:49,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12568 states. [2022-04-18 20:16:50,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12568 to 12367. [2022-04-18 20:16:50,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12367 states, 12270 states have (on average 2.7447432762836184) internal successors, (33678), 12366 states have internal predecessors, (33678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12367 states to 12367 states and 33678 transitions. [2022-04-18 20:16:50,292 INFO L78 Accepts]: Start accepts. Automaton has 12367 states and 33678 transitions. Word has length 21 [2022-04-18 20:16:50,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:50,293 INFO L478 AbstractCegarLoop]: Abstraction has 12367 states and 33678 transitions. [2022-04-18 20:16:50,293 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 12367 states and 33678 transitions. [2022-04-18 20:16:50,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:16:50,306 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:50,306 INFO L499 BasicCegarLoop]: 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 20:16:50,306 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 20:16:50,306 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:50,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2104269355, now seen corresponding path program 1 times [2022-04-18 20:16:50,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:50,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737344061] [2022-04-18 20:16:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:50,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:50,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:50,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737344061] [2022-04-18 20:16:50,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737344061] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:50,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:50,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:16:50,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121192838] [2022-04-18 20:16:50,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:50,491 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:16:50,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:50,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:16:50,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:16:50,491 INFO L87 Difference]: Start difference. First operand 12367 states and 33678 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:52,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:52,029 INFO L93 Difference]: Finished difference Result 14816 states and 38761 transitions. [2022-04-18 20:16:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:16:52,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:16:52,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:52,055 INFO L225 Difference]: With dead ends: 14816 [2022-04-18 20:16:52,055 INFO L226 Difference]: Without dead ends: 14816 [2022-04-18 20:16:52,055 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:16:52,056 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 715 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:52,056 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 351 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 2315 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 20:16:52,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14816 states. [2022-04-18 20:16:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14816 to 12682. [2022-04-18 20:16:52,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12682 states, 12585 states have (on average 2.7492252681764007) internal successors, (34599), 12681 states have internal predecessors, (34599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12682 states to 12682 states and 34599 transitions. [2022-04-18 20:16:52,245 INFO L78 Accepts]: Start accepts. Automaton has 12682 states and 34599 transitions. Word has length 22 [2022-04-18 20:16:52,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:52,245 INFO L478 AbstractCegarLoop]: Abstraction has 12682 states and 34599 transitions. [2022-04-18 20:16:52,246 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 12682 states and 34599 transitions. [2022-04-18 20:16:52,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:16:52,247 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:52,247 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:52,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 20:16:52,248 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:52,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1051911395, now seen corresponding path program 2 times [2022-04-18 20:16:52,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:52,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532961588] [2022-04-18 20:16:52,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:52,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:52,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:52,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532961588] [2022-04-18 20:16:52,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532961588] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:52,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:52,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:16:52,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162736463] [2022-04-18 20:16:52,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:52,399 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:16:52,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:52,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:16:52,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:16:52,400 INFO L87 Difference]: Start difference. First operand 12682 states and 34599 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:54,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:54,450 INFO L93 Difference]: Finished difference Result 15642 states and 41100 transitions. [2022-04-18 20:16:54,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:16:54,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:16:54,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:54,483 INFO L225 Difference]: With dead ends: 15642 [2022-04-18 20:16:54,483 INFO L226 Difference]: Without dead ends: 15642 [2022-04-18 20:16:54,484 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-04-18 20:16:54,484 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 653 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 3109 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 3109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:54,484 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 435 Invalid, 3443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 3109 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 20:16:54,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15642 states. [2022-04-18 20:16:54,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15642 to 13025. [2022-04-18 20:16:54,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13025 states, 12928 states have (on average 2.7542543316831685) internal successors, (35607), 13024 states have internal predecessors, (35607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13025 states to 13025 states and 35607 transitions. [2022-04-18 20:16:54,656 INFO L78 Accepts]: Start accepts. Automaton has 13025 states and 35607 transitions. Word has length 22 [2022-04-18 20:16:54,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:54,656 INFO L478 AbstractCegarLoop]: Abstraction has 13025 states and 35607 transitions. [2022-04-18 20:16:54,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:54,656 INFO L276 IsEmpty]: Start isEmpty. Operand 13025 states and 35607 transitions. [2022-04-18 20:16:54,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:16:54,658 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:54,658 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:54,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 20:16:54,658 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:54,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:54,658 INFO L85 PathProgramCache]: Analyzing trace with hash -413215087, now seen corresponding path program 3 times [2022-04-18 20:16:54,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:54,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661341369] [2022-04-18 20:16:54,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:54,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:54,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:54,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661341369] [2022-04-18 20:16:54,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661341369] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:54,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:54,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:16:54,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751310598] [2022-04-18 20:16:54,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:54,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:16:54,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:54,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:16:54,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:16:54,829 INFO L87 Difference]: Start difference. First operand 13025 states and 35607 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:56,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:56,374 INFO L93 Difference]: Finished difference Result 16468 states and 43474 transitions. [2022-04-18 20:16:56,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:16:56,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:16:56,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:56,403 INFO L225 Difference]: With dead ends: 16468 [2022-04-18 20:16:56,404 INFO L226 Difference]: Without dead ends: 16468 [2022-04-18 20:16:56,404 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-04-18 20:16:56,404 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 597 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:56,404 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [597 Valid, 354 Invalid, 2742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 20:16:56,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16468 states. [2022-04-18 20:16:56,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16468 to 13368. [2022-04-18 20:16:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13368 states, 13271 states have (on average 2.759023434556552) internal successors, (36615), 13367 states have internal predecessors, (36615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:56,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13368 states to 13368 states and 36615 transitions. [2022-04-18 20:16:56,601 INFO L78 Accepts]: Start accepts. Automaton has 13368 states and 36615 transitions. Word has length 22 [2022-04-18 20:16:56,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:56,601 INFO L478 AbstractCegarLoop]: Abstraction has 13368 states and 36615 transitions. [2022-04-18 20:16:56,601 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:56,601 INFO L276 IsEmpty]: Start isEmpty. Operand 13368 states and 36615 transitions. [2022-04-18 20:16:56,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:16:56,603 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:56,603 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:16:56,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 20:16:56,603 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:56,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:56,604 INFO L85 PathProgramCache]: Analyzing trace with hash -767002981, now seen corresponding path program 4 times [2022-04-18 20:16:56,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:56,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134213693] [2022-04-18 20:16:56,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:56,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:56,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:56,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134213693] [2022-04-18 20:16:56,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134213693] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:56,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:56,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:16:56,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331268036] [2022-04-18 20:16:56,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:56,707 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:16:56,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:56,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:16:56,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:16:56,708 INFO L87 Difference]: Start difference. First operand 13368 states and 36615 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:58,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:58,568 INFO L93 Difference]: Finished difference Result 17294 states and 45848 transitions. [2022-04-18 20:16:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 20:16:58,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:16:58,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:58,599 INFO L225 Difference]: With dead ends: 17294 [2022-04-18 20:16:58,599 INFO L226 Difference]: Without dead ends: 17294 [2022-04-18 20:16:58,600 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2022-04-18 20:16:58,602 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 676 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 2914 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:58,602 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 406 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2914 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-18 20:16:58,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17294 states. [2022-04-18 20:16:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17294 to 13711. [2022-04-18 20:16:58,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13711 states, 13614 states have (on average 2.763552225650066) internal successors, (37623), 13710 states have internal predecessors, (37623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:58,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13711 states to 13711 states and 37623 transitions. [2022-04-18 20:16:58,808 INFO L78 Accepts]: Start accepts. Automaton has 13711 states and 37623 transitions. Word has length 22 [2022-04-18 20:16:58,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:58,808 INFO L478 AbstractCegarLoop]: Abstraction has 13711 states and 37623 transitions. [2022-04-18 20:16:58,809 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 13711 states and 37623 transitions. [2022-04-18 20:16:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:16:58,811 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:58,811 INFO L499 BasicCegarLoop]: 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 20:16:58,811 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 20:16:58,811 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:58,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1957599592, now seen corresponding path program 1 times [2022-04-18 20:16:58,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:58,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833370955] [2022-04-18 20:16:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:58,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:58,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:58,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833370955] [2022-04-18 20:16:58,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833370955] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:58,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:58,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:16:58,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828877921] [2022-04-18 20:16:58,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:58,915 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:16:58,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:58,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:16:58,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:16:58,915 INFO L87 Difference]: Start difference. First operand 13711 states and 37623 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:59,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:16:59,519 INFO L93 Difference]: Finished difference Result 13641 states and 37409 transitions. [2022-04-18 20:16:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:16:59,519 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:16:59,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:16:59,541 INFO L225 Difference]: With dead ends: 13641 [2022-04-18 20:16:59,541 INFO L226 Difference]: Without dead ends: 13641 [2022-04-18 20:16:59,542 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:16:59,542 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 402 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:16:59,542 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 195 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:16:59,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13641 states. [2022-04-18 20:16:59,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13641 to 13396. [2022-04-18 20:16:59,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13396 states, 13303 states have (on average 2.7615575434112607) internal successors, (36737), 13395 states have internal predecessors, (36737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:16:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13396 states to 13396 states and 36737 transitions. [2022-04-18 20:16:59,724 INFO L78 Accepts]: Start accepts. Automaton has 13396 states and 36737 transitions. Word has length 22 [2022-04-18 20:16:59,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:16:59,724 INFO L478 AbstractCegarLoop]: Abstraction has 13396 states and 36737 transitions. [2022-04-18 20:16:59,725 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:16:59,725 INFO L276 IsEmpty]: Start isEmpty. Operand 13396 states and 36737 transitions. [2022-04-18 20:16:59,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:16:59,726 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:16:59,726 INFO L499 BasicCegarLoop]: 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 20:16:59,727 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 20:16:59,727 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:16:59,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:16:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2147159, now seen corresponding path program 5 times [2022-04-18 20:16:59,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:16:59,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924669702] [2022-04-18 20:16:59,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:16:59,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:16:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:16:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:16:59,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:16:59,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924669702] [2022-04-18 20:16:59,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924669702] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:16:59,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:16:59,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:16:59,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552764199] [2022-04-18 20:16:59,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:16:59,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:16:59,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:16:59,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:16:59,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:16:59,823 INFO L87 Difference]: Start difference. First operand 13396 states and 36737 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:17:01,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:01,357 INFO L93 Difference]: Finished difference Result 16377 states and 43760 transitions. [2022-04-18 20:17:01,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 20:17:01,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:17:01,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:01,381 INFO L225 Difference]: With dead ends: 16377 [2022-04-18 20:17:01,381 INFO L226 Difference]: Without dead ends: 16377 [2022-04-18 20:17:01,382 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-04-18 20:17:01,382 INFO L913 BasicCegarLoop]: 160 mSDtfsCounter, 727 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:01,382 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 351 Invalid, 2738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-18 20:17:01,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16377 states. [2022-04-18 20:17:01,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16377 to 12136. [2022-04-18 20:17:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12136 states, 12043 states have (on average 2.744581914805281) internal successors, (33053), 12135 states have internal predecessors, (33053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:01,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12136 states to 12136 states and 33053 transitions. [2022-04-18 20:17:01,556 INFO L78 Accepts]: Start accepts. Automaton has 12136 states and 33053 transitions. Word has length 22 [2022-04-18 20:17:01,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:01,556 INFO L478 AbstractCegarLoop]: Abstraction has 12136 states and 33053 transitions. [2022-04-18 20:17:01,556 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 20:17:01,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12136 states and 33053 transitions. [2022-04-18 20:17:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-18 20:17:01,557 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:01,558 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:01,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 20:17:01,558 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:01,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:01,558 INFO L85 PathProgramCache]: Analyzing trace with hash -265709027, now seen corresponding path program 1 times [2022-04-18 20:17:01,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:01,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538912668] [2022-04-18 20:17:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:01,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:01,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:01,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:01,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538912668] [2022-04-18 20:17:01,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538912668] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:01,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:01,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:01,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100616216] [2022-04-18 20:17:01,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:01,635 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:01,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:01,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:01,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:01,636 INFO L87 Difference]: Start difference. First operand 12136 states and 33053 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:01,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:01,946 INFO L93 Difference]: Finished difference Result 12050 states and 32816 transitions. [2022-04-18 20:17:01,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:01,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-04-18 20:17:01,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:01,966 INFO L225 Difference]: With dead ends: 12050 [2022-04-18 20:17:01,966 INFO L226 Difference]: Without dead ends: 12050 [2022-04-18 20:17:01,966 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 20:17:01,967 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 48 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:01,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 175 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:17:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12050 states. [2022-04-18 20:17:02,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12050 to 12050. [2022-04-18 20:17:02,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12050 states, 11961 states have (on average 2.743583312432071) internal successors, (32816), 12049 states have internal predecessors, (32816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:02,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12050 states to 12050 states and 32816 transitions. [2022-04-18 20:17:02,123 INFO L78 Accepts]: Start accepts. Automaton has 12050 states and 32816 transitions. Word has length 24 [2022-04-18 20:17:02,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:02,123 INFO L478 AbstractCegarLoop]: Abstraction has 12050 states and 32816 transitions. [2022-04-18 20:17:02,123 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 12050 states and 32816 transitions. [2022-04-18 20:17:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-18 20:17:02,125 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:02,125 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:02,125 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 20:17:02,125 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:02,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:02,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2133318674, now seen corresponding path program 1 times [2022-04-18 20:17:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:02,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766124192] [2022-04-18 20:17:02,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:02,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:02,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:02,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766124192] [2022-04-18 20:17:02,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766124192] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:02,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:02,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:02,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189873989] [2022-04-18 20:17:02,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:02,194 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:02,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:02,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:02,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:02,195 INFO L87 Difference]: Start difference. First operand 12050 states and 32816 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:02,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:02,508 INFO L93 Difference]: Finished difference Result 12342 states and 33617 transitions. [2022-04-18 20:17:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-04-18 20:17:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:02,529 INFO L225 Difference]: With dead ends: 12342 [2022-04-18 20:17:02,529 INFO L226 Difference]: Without dead ends: 12342 [2022-04-18 20:17:02,530 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 20:17:02,530 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 46 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:02,530 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 176 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:17:02,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12342 states. [2022-04-18 20:17:02,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12342 to 12279. [2022-04-18 20:17:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12279 states, 12190 states have (on average 2.743560295324036) internal successors, (33444), 12278 states have internal predecessors, (33444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12279 states to 12279 states and 33444 transitions. [2022-04-18 20:17:02,688 INFO L78 Accepts]: Start accepts. Automaton has 12279 states and 33444 transitions. Word has length 30 [2022-04-18 20:17:02,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:02,688 INFO L478 AbstractCegarLoop]: Abstraction has 12279 states and 33444 transitions. [2022-04-18 20:17:02,688 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 12279 states and 33444 transitions. [2022-04-18 20:17:02,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-04-18 20:17:02,690 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:02,691 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:02,691 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 20:17:02,691 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:02,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:02,691 INFO L85 PathProgramCache]: Analyzing trace with hash -498070073, now seen corresponding path program 1 times [2022-04-18 20:17:02,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:02,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091504885] [2022-04-18 20:17:02,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:02,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:02,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:02,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:02,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091504885] [2022-04-18 20:17:02,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091504885] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:02,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:02,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:02,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839364177] [2022-04-18 20:17:02,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:02,817 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:02,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:02,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:02,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:02,818 INFO L87 Difference]: Start difference. First operand 12279 states and 33444 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:03,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:03,320 INFO L93 Difference]: Finished difference Result 12216 states and 33271 transitions. [2022-04-18 20:17:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:03,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-04-18 20:17:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:03,339 INFO L225 Difference]: With dead ends: 12216 [2022-04-18 20:17:03,339 INFO L226 Difference]: Without dead ends: 12216 [2022-04-18 20:17:03,339 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:17:03,340 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 387 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:03,340 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 173 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:17:03,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12216 states. [2022-04-18 20:17:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12216 to 11964. [2022-04-18 20:17:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11964 states, 11879 states have (on average 2.7425709234784073) internal successors, (32579), 11963 states have internal predecessors, (32579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11964 states to 11964 states and 32579 transitions. [2022-04-18 20:17:03,493 INFO L78 Accepts]: Start accepts. Automaton has 11964 states and 32579 transitions. Word has length 34 [2022-04-18 20:17:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:03,493 INFO L478 AbstractCegarLoop]: Abstraction has 11964 states and 32579 transitions. [2022-04-18 20:17:03,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 11964 states and 32579 transitions. [2022-04-18 20:17:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-04-18 20:17:03,496 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:03,497 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:03,497 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 20:17:03,497 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:03,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1350538534, now seen corresponding path program 1 times [2022-04-18 20:17:03,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:03,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908162145] [2022-04-18 20:17:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:03,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:03,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:03,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:03,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908162145] [2022-04-18 20:17:03,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908162145] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:03,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:03,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:03,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618215705] [2022-04-18 20:17:03,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:03,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:03,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:03,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:03,596 INFO L87 Difference]: Start difference. First operand 11964 states and 32579 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:04,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:04,015 INFO L93 Difference]: Finished difference Result 12193 states and 33207 transitions. [2022-04-18 20:17:04,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:04,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-04-18 20:17:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:04,035 INFO L225 Difference]: With dead ends: 12193 [2022-04-18 20:17:04,035 INFO L226 Difference]: Without dead ends: 12193 [2022-04-18 20:17:04,035 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 20:17:04,036 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 44 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:04,036 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 194 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:17:04,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12193 states. [2022-04-18 20:17:04,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12193 to 12193. [2022-04-18 20:17:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12193 states, 12108 states have (on average 2.7425668979187314) internal successors, (33207), 12192 states have internal predecessors, (33207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:04,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12193 states to 12193 states and 33207 transitions. [2022-04-18 20:17:04,189 INFO L78 Accepts]: Start accepts. Automaton has 12193 states and 33207 transitions. Word has length 42 [2022-04-18 20:17:04,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:04,190 INFO L478 AbstractCegarLoop]: Abstraction has 12193 states and 33207 transitions. [2022-04-18 20:17:04,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:04,190 INFO L276 IsEmpty]: Start isEmpty. Operand 12193 states and 33207 transitions. [2022-04-18 20:17:04,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-04-18 20:17:04,193 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:04,193 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:04,193 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 20:17:04,193 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:04,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:04,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1100176495, now seen corresponding path program 1 times [2022-04-18 20:17:04,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:04,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24210837] [2022-04-18 20:17:04,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:04,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:04,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:04,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24210837] [2022-04-18 20:17:04,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24210837] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:04,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:04,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-18 20:17:04,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170641978] [2022-04-18 20:17:04,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:04,328 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-04-18 20:17:04,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:04,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-04-18 20:17:04,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:17:04,328 INFO L87 Difference]: Start difference. First operand 12193 states and 33207 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:04,859 INFO L93 Difference]: Finished difference Result 12130 states and 33034 transitions. [2022-04-18 20:17:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:04,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-04-18 20:17:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:04,878 INFO L225 Difference]: With dead ends: 12130 [2022-04-18 20:17:04,879 INFO L226 Difference]: Without dead ends: 12130 [2022-04-18 20:17:04,879 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:17:04,880 INFO L913 BasicCegarLoop]: 96 mSDtfsCounter, 360 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:04,880 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 193 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:17:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12130 states. [2022-04-18 20:17:04,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12130 to 11878. [2022-04-18 20:17:05,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11878 states, 11797 states have (on average 2.741544460456048) internal successors, (32342), 11877 states have internal predecessors, (32342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11878 states to 11878 states and 32342 transitions. [2022-04-18 20:17:05,041 INFO L78 Accepts]: Start accepts. Automaton has 11878 states and 32342 transitions. Word has length 46 [2022-04-18 20:17:05,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:05,041 INFO L478 AbstractCegarLoop]: Abstraction has 11878 states and 32342 transitions. [2022-04-18 20:17:05,041 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand 11878 states and 32342 transitions. [2022-04-18 20:17:05,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-18 20:17:05,045 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:05,045 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:05,045 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 20:17:05,045 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:05,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:05,045 INFO L85 PathProgramCache]: Analyzing trace with hash 361984394, now seen corresponding path program 1 times [2022-04-18 20:17:05,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:05,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251492476] [2022-04-18 20:17:05,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:05,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:05,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:05,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251492476] [2022-04-18 20:17:05,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251492476] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:05,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:05,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:05,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089894146] [2022-04-18 20:17:05,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:05,134 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:05,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:05,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:05,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:05,135 INFO L87 Difference]: Start difference. First operand 11878 states and 32342 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:05,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:05,408 INFO L93 Difference]: Finished difference Result 12023 states and 32730 transitions. [2022-04-18 20:17:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:05,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-04-18 20:17:05,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:05,428 INFO L225 Difference]: With dead ends: 12023 [2022-04-18 20:17:05,428 INFO L226 Difference]: Without dead ends: 12023 [2022-04-18 20:17:05,428 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 20:17:05,428 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 44 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:05,429 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 159 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:17:05,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12023 states. [2022-04-18 20:17:05,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12023 to 12023. [2022-04-18 20:17:05,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12023 states, 11942 states have (on average 2.7407469435605427) internal successors, (32730), 12022 states have internal predecessors, (32730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:05,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12023 states to 12023 states and 32730 transitions. [2022-04-18 20:17:05,580 INFO L78 Accepts]: Start accepts. Automaton has 12023 states and 32730 transitions. Word has length 48 [2022-04-18 20:17:05,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:05,580 INFO L478 AbstractCegarLoop]: Abstraction has 12023 states and 32730 transitions. [2022-04-18 20:17:05,580 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:05,580 INFO L276 IsEmpty]: Start isEmpty. Operand 12023 states and 32730 transitions. [2022-04-18 20:17:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-18 20:17:05,584 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:05,584 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:05,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 20:17:05,584 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:05,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash 650067638, now seen corresponding path program 1 times [2022-04-18 20:17:05,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:05,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066748339] [2022-04-18 20:17:05,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:05,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:05,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:05,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066748339] [2022-04-18 20:17:05,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066748339] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:05,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:05,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:17:05,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968152647] [2022-04-18 20:17:05,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:05,648 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:17:05,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:05,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:17:05,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:17:05,649 INFO L87 Difference]: Start difference. First operand 12023 states and 32730 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:06,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:06,035 INFO L93 Difference]: Finished difference Result 12315 states and 33531 transitions. [2022-04-18 20:17:06,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:17:06,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-04-18 20:17:06,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:06,058 INFO L225 Difference]: With dead ends: 12315 [2022-04-18 20:17:06,058 INFO L226 Difference]: Without dead ends: 12315 [2022-04-18 20:17:06,058 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 20:17:06,058 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 45 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:06,059 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 193 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:17:06,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12315 states. [2022-04-18 20:17:06,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12315 to 12252. [2022-04-18 20:17:06,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12252 states, 12171 states have (on average 2.7407772574151674) internal successors, (33358), 12251 states have internal predecessors, (33358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12252 states to 12252 states and 33358 transitions. [2022-04-18 20:17:06,239 INFO L78 Accepts]: Start accepts. Automaton has 12252 states and 33358 transitions. Word has length 48 [2022-04-18 20:17:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:06,239 INFO L478 AbstractCegarLoop]: Abstraction has 12252 states and 33358 transitions. [2022-04-18 20:17:06,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 12252 states and 33358 transitions. [2022-04-18 20:17:06,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-18 20:17:06,243 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:06,243 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:06,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 20:17:06,244 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:06,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:06,244 INFO L85 PathProgramCache]: Analyzing trace with hash -772345826, now seen corresponding path program 1 times [2022-04-18 20:17:06,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:06,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339448138] [2022-04-18 20:17:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:06,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:06,290 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 20:17:06,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:06,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339448138] [2022-04-18 20:17:06,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339448138] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:17:06,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2942340] [2022-04-18 20:17:06,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:06,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:17:06,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:17:06,295 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 20:17:06,327 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 20:17:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:06,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-18 20:17:06,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:17:06,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 20:17:06,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 20:17:06,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2942340] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:06,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 20:17:06,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-04-18 20:17:06,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158234267] [2022-04-18 20:17:06,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:06,605 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 20:17:06,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:06,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 20:17:06,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:17:06,606 INFO L87 Difference]: Start difference. First operand 12252 states and 33358 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:06,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:06,722 INFO L93 Difference]: Finished difference Result 12166 states and 33121 transitions. [2022-04-18 20:17:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 20:17:06,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-04-18 20:17:06,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:06,743 INFO L225 Difference]: With dead ends: 12166 [2022-04-18 20:17:06,743 INFO L226 Difference]: Without dead ends: 12166 [2022-04-18 20:17:06,743 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:17:06,744 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 15 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:06,744 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 246 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:17:06,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12166 states. [2022-04-18 20:17:06,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12166 to 12166. [2022-04-18 20:17:06,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12166 states, 12089 states have (on average 2.739763421292084) internal successors, (33121), 12165 states have internal predecessors, (33121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12166 states to 12166 states and 33121 transitions. [2022-04-18 20:17:06,909 INFO L78 Accepts]: Start accepts. Automaton has 12166 states and 33121 transitions. Word has length 51 [2022-04-18 20:17:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:06,909 INFO L478 AbstractCegarLoop]: Abstraction has 12166 states and 33121 transitions. [2022-04-18 20:17:06,909 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 12166 states and 33121 transitions. [2022-04-18 20:17:06,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:06,913 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:06,914 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:06,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 20:17:07,114 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,SelfDestructingSolverStorable24 [2022-04-18 20:17:07,114 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:07,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash 627413281, now seen corresponding path program 1 times [2022-04-18 20:17:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:07,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074120910] [2022-04-18 20:17:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:07,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:07,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:07,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074120910] [2022-04-18 20:17:07,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074120910] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:07,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:07,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:07,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688536052] [2022-04-18 20:17:07,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:07,543 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:07,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:07,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:07,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:07,544 INFO L87 Difference]: Start difference. First operand 12166 states and 33121 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:09,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:09,704 INFO L93 Difference]: Finished difference Result 18728 states and 49436 transitions. [2022-04-18 20:17:09,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:17:09,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-04-18 20:17:09,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:09,736 INFO L225 Difference]: With dead ends: 18728 [2022-04-18 20:17:09,737 INFO L226 Difference]: Without dead ends: 18728 [2022-04-18 20:17:09,737 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-04-18 20:17:09,737 INFO L913 BasicCegarLoop]: 167 mSDtfsCounter, 647 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:09,738 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [647 Valid, 429 Invalid, 3743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-18 20:17:09,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18728 states. [2022-04-18 20:17:09,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18728 to 12950. [2022-04-18 20:17:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12950 states, 12873 states have (on average 2.7528936533830497) internal successors, (35438), 12949 states have internal predecessors, (35438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:09,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12950 states to 12950 states and 35438 transitions. [2022-04-18 20:17:09,942 INFO L78 Accepts]: Start accepts. Automaton has 12950 states and 35438 transitions. Word has length 52 [2022-04-18 20:17:09,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:09,942 INFO L478 AbstractCegarLoop]: Abstraction has 12950 states and 35438 transitions. [2022-04-18 20:17:09,943 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:09,943 INFO L276 IsEmpty]: Start isEmpty. Operand 12950 states and 35438 transitions. [2022-04-18 20:17:09,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:09,948 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:09,948 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:09,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 20:17:09,948 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:09,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash 962480601, now seen corresponding path program 2 times [2022-04-18 20:17:09,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:09,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741854944] [2022-04-18 20:17:09,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:09,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:10,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:10,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741854944] [2022-04-18 20:17:10,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741854944] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:10,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:10,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:10,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885494388] [2022-04-18 20:17:10,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:10,368 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:10,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:10,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:10,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:10,369 INFO L87 Difference]: Start difference. First operand 12950 states and 35438 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:12,421 INFO L93 Difference]: Finished difference Result 19434 states and 51435 transitions. [2022-04-18 20:17:12,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:17:12,422 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-04-18 20:17:12,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:12,455 INFO L225 Difference]: With dead ends: 19434 [2022-04-18 20:17:12,455 INFO L226 Difference]: Without dead ends: 19434 [2022-04-18 20:17:12,456 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-04-18 20:17:12,456 INFO L913 BasicCegarLoop]: 168 mSDtfsCounter, 901 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 3150 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 3703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:12,456 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [901 Valid, 412 Invalid, 3703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3150 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-18 20:17:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19434 states. [2022-04-18 20:17:12,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19434 to 13279. [2022-04-18 20:17:12,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13279 states, 13202 states have (on average 2.7549613694894712) internal successors, (36371), 13278 states have internal predecessors, (36371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13279 states to 13279 states and 36371 transitions. [2022-04-18 20:17:12,670 INFO L78 Accepts]: Start accepts. Automaton has 13279 states and 36371 transitions. Word has length 52 [2022-04-18 20:17:12,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:12,670 INFO L478 AbstractCegarLoop]: Abstraction has 13279 states and 36371 transitions. [2022-04-18 20:17:12,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:12,670 INFO L276 IsEmpty]: Start isEmpty. Operand 13279 states and 36371 transitions. [2022-04-18 20:17:12,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:12,676 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:12,676 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:12,676 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 20:17:12,676 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:12,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:12,676 INFO L85 PathProgramCache]: Analyzing trace with hash -7956729, now seen corresponding path program 3 times [2022-04-18 20:17:12,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:12,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163287073] [2022-04-18 20:17:12,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:13,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:13,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163287073] [2022-04-18 20:17:13,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163287073] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:13,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:13,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:13,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927187116] [2022-04-18 20:17:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:13,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:13,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:13,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:13,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:13,111 INFO L87 Difference]: Start difference. First operand 13279 states and 36371 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:14,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:17:14,817 INFO L93 Difference]: Finished difference Result 21332 states and 56876 transitions. [2022-04-18 20:17:14,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 20:17:14,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-04-18 20:17:14,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:17:14,869 INFO L225 Difference]: With dead ends: 21332 [2022-04-18 20:17:14,870 INFO L226 Difference]: Without dead ends: 21332 [2022-04-18 20:17:14,870 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-04-18 20:17:14,870 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 896 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-18 20:17:14,871 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 336 Invalid, 2954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2355 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-18 20:17:14,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21332 states. [2022-04-18 20:17:15,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21332 to 13608. [2022-04-18 20:17:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13608 states, 13531 states have (on average 2.7569285344763874) internal successors, (37304), 13607 states have internal predecessors, (37304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13608 states to 13608 states and 37304 transitions. [2022-04-18 20:17:15,130 INFO L78 Accepts]: Start accepts. Automaton has 13608 states and 37304 transitions. Word has length 52 [2022-04-18 20:17:15,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:17:15,130 INFO L478 AbstractCegarLoop]: Abstraction has 13608 states and 37304 transitions. [2022-04-18 20:17:15,130 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:17:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 13608 states and 37304 transitions. [2022-04-18 20:17:15,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-18 20:17:15,136 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:17:15,137 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:17:15,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-18 20:17:15,137 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-04-18 20:17:15,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:17:15,137 INFO L85 PathProgramCache]: Analyzing trace with hash -84932207, now seen corresponding path program 4 times [2022-04-18 20:17:15,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:17:15,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689194506] [2022-04-18 20:17:15,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:17:15,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:17:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:17:15,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:17:15,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:17:15,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689194506] [2022-04-18 20:17:15,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689194506] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:17:15,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:17:15,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 20:17:15,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166844821] [2022-04-18 20:17:15,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:17:15,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-18 20:17:15,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:17:15,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-18 20:17:15,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:17:15,535 INFO L87 Difference]: Start difference. First operand 13608 states and 37304 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)