./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c --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/weaver/popl20-bad-three-array-sum-alt.wvr.c -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 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:20:16,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:20:16,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:20:16,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:20:16,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:20:16,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:20:16,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:20:16,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:20:16,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:20:16,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:20:16,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:20:16,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:20:16,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:20:16,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:20:16,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:20:16,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:20:16,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:20:16,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:20:16,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:20:16,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:20:16,653 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:20:16,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:20:16,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:20:16,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:20:16,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:20:16,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:20:16,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:20:16,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:20:16,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:20:16,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:20:16,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:20:16,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:20:16,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:20:16,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:20:16,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:20:16,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:20:16,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:20:16,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:20:16,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:20:16,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:20:16,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:20:16,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:20:16,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:20:16,692 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:20:16,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:20:16,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:20:16,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:20:16,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:20:16,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:20:16,693 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:20:16,693 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:20:16,694 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:20:16,694 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:20:16,694 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:20:16,694 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:20:16,695 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:20:16,695 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:20:16,695 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:20:16,695 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:20:16,695 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:20:16,695 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:20:16,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:20:16,696 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:20:16,696 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:20:16,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:20:16,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:20:16,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:20:16,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:20:16,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:20:16,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:20:16,698 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:20:16,698 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:20:16,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:20:16,698 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:20:16,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:20:16,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:20:16,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:20:16,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:20:16,700 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:20:16,700 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:20:16,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:20:16,700 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:20:16,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:20:16,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:20:16,701 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:20:16,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:20:16,701 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f [2022-04-18 20:20:16,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:20:16,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:20:16,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:20:16,913 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:20:16,914 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:20:16,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-04-18 20:20:16,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7a7f5a68f/d93ff2ff7a0244de8a3a41df0c8f1860/FLAG3531cf4d8 [2022-04-18 20:20:17,288 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:20:17,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-04-18 20:20:17,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7a7f5a68f/d93ff2ff7a0244de8a3a41df0c8f1860/FLAG3531cf4d8 [2022-04-18 20:20:17,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7a7f5a68f/d93ff2ff7a0244de8a3a41df0c8f1860 [2022-04-18 20:20:17,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:20:17,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:20:17,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:20:17,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:20:17,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:20:17,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:17,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce44448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17, skipping insertion in model container [2022-04-18 20:20:17,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:17,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:20:17,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:20:17,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c[2412,2425] [2022-04-18 20:20:17,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:20:17,865 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:20:17,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-three-array-sum-alt.wvr.c[2412,2425] [2022-04-18 20:20:17,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:20:17,905 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:20:17,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17 WrapperNode [2022-04-18 20:20:17,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:20:17,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:20:17,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:20:17,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:20:17,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:17,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:17,949 INFO L137 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 403 [2022-04-18 20:20:17,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:20:17,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:20:17,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:20:17,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:20:17,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:17,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:17,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:17,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:17,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:18,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:18,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:18,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:20:18,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:20:18,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:20:18,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:20:18,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (1/1) ... [2022-04-18 20:20:18,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:20:18,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:20:18,039 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 20:20:18,047 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 20:20:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:20:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:20:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:20:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:20:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 20:20:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 20:20:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 20:20:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 20:20:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 20:20:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 20:20:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:20:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 20:20:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:20:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:20:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:20:18,076 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 20:20:18,199 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:20:18,200 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:20:18,687 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:20:18,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:20:18,697 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 20:20:18,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:20:18 BoogieIcfgContainer [2022-04-18 20:20:18,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:20:18,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:20:18,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:20:18,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:20:18,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:20:17" (1/3) ... [2022-04-18 20:20:18,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a37022c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:20:18, skipping insertion in model container [2022-04-18 20:20:18,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:17" (2/3) ... [2022-04-18 20:20:18,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a37022c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:20:18, skipping insertion in model container [2022-04-18 20:20:18,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:20:18" (3/3) ... [2022-04-18 20:20:18,713 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2022-04-18 20:20:18,716 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:20:18,716 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:20:18,717 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-04-18 20:20:18,717 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:20:18,810 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 20:20:18,852 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:20:18,859 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 20:20:18,860 INFO L341 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-04-18 20:20:18,881 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:20:18,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 517 places, 536 transitions, 1096 flow [2022-04-18 20:20:18,893 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 517 places, 536 transitions, 1096 flow [2022-04-18 20:20:18,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 517 places, 536 transitions, 1096 flow [2022-04-18 20:20:19,036 INFO L129 PetriNetUnfolder]: 29/533 cut-off events. [2022-04-18 20:20:19,036 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 20:20:19,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 533 events. 29/533 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 918 event pairs, 0 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 332. Up to 2 conditions per place. [2022-04-18 20:20:19,083 INFO L116 LiptonReduction]: Number of co-enabled transitions 47072 [2022-04-18 20:20:30,793 INFO L131 LiptonReduction]: Checked pairs total: 210583 [2022-04-18 20:20:30,794 INFO L133 LiptonReduction]: Total number of compositions: 632 [2022-04-18 20:20:30,803 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 124 transitions, 272 flow [2022-04-18 20:20:32,842 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 72211 states, 71251 states have (on average 4.104335377749084) internal successors, (292438), 72210 states have internal predecessors, (292438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:32,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 72211 states, 71251 states have (on average 4.104335377749084) internal successors, (292438), 72210 states have internal predecessors, (292438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:32,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:20:32,961 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:32,961 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:20:32,962 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:20:32,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:32,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2051, now seen corresponding path program 1 times [2022-04-18 20:20:32,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:32,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454427485] [2022-04-18 20:20:32,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:32,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:33,035 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 20:20:33,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:33,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454427485] [2022-04-18 20:20:33,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454427485] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:33,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:33,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:20:33,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272301659] [2022-04-18 20:20:33,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:33,042 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:20:33,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:33,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:20:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:20:33,197 INFO L87 Difference]: Start difference. First operand has 72211 states, 71251 states have (on average 4.104335377749084) internal successors, (292438), 72210 states have internal predecessors, (292438), 0 states have call successors, (0), 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 20:20:33,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:33,814 INFO L93 Difference]: Finished difference Result 32550 states and 123265 transitions. [2022-04-18 20:20:33,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:20:33,816 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 20:20:33,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:34,045 INFO L225 Difference]: With dead ends: 32550 [2022-04-18 20:20:34,045 INFO L226 Difference]: Without dead ends: 32548 [2022-04-18 20:20:34,046 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 20:20:34,049 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:34,050 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:20:34,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32548 states. [2022-04-18 20:20:35,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32548 to 32548. [2022-04-18 20:20:35,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32548 states, 32494 states have (on average 3.793377238874869) internal successors, (123262), 32547 states have internal predecessors, (123262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32548 states to 32548 states and 123262 transitions. [2022-04-18 20:20:36,077 INFO L78 Accepts]: Start accepts. Automaton has 32548 states and 123262 transitions. Word has length 1 [2022-04-18 20:20:36,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:36,077 INFO L478 AbstractCegarLoop]: Abstraction has 32548 states and 123262 transitions. [2022-04-18 20:20:36,078 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 20:20:36,078 INFO L276 IsEmpty]: Start isEmpty. Operand 32548 states and 123262 transitions. [2022-04-18 20:20:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-18 20:20:36,086 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:36,086 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:36,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:20:36,087 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:20:36,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:36,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1204834700, now seen corresponding path program 1 times [2022-04-18 20:20:36,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:36,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640182946] [2022-04-18 20:20:36,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:36,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:36,292 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 20:20:36,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:36,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640182946] [2022-04-18 20:20:36,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640182946] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:36,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:36,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:20:36,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448693206] [2022-04-18 20:20:36,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:36,295 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:20:36,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:36,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:20:36,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:20:36,296 INFO L87 Difference]: Start difference. First operand 32548 states and 123262 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 20:20:37,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:37,189 INFO L93 Difference]: Finished difference Result 44316 states and 168886 transitions. [2022-04-18 20:20:37,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:20:37,204 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 20:20:37,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:37,621 INFO L225 Difference]: With dead ends: 44316 [2022-04-18 20:20:37,621 INFO L226 Difference]: Without dead ends: 44316 [2022-04-18 20:20:37,622 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 20:20:37,623 INFO L913 BasicCegarLoop]: 60 mSDtfsCounter, 96 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:37,624 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 77 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:20:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44316 states. [2022-04-18 20:20:38,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44316 to 41940. [2022-04-18 20:20:38,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41940 states, 41886 states have (on average 3.8122284295468654) internal successors, (159679), 41939 states have internal predecessors, (159679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:39,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41940 states to 41940 states and 159679 transitions. [2022-04-18 20:20:39,243 INFO L78 Accepts]: Start accepts. Automaton has 41940 states and 159679 transitions. Word has length 14 [2022-04-18 20:20:39,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:39,243 INFO L478 AbstractCegarLoop]: Abstraction has 41940 states and 159679 transitions. [2022-04-18 20:20:39,243 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 20:20:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 41940 states and 159679 transitions. [2022-04-18 20:20:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 20:20:39,245 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:39,245 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:39,246 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:20:39,246 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:20:39,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:39,246 INFO L85 PathProgramCache]: Analyzing trace with hash -478487258, now seen corresponding path program 1 times [2022-04-18 20:20:39,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:39,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996484596] [2022-04-18 20:20:39,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:39,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:39,349 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 20:20:39,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:39,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996484596] [2022-04-18 20:20:39,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996484596] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:39,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:39,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:20:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952790183] [2022-04-18 20:20:39,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:39,352 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:20:39,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:39,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:20:39,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:20:39,353 INFO L87 Difference]: Start difference. First operand 41940 states and 159679 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:40,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:40,315 INFO L93 Difference]: Finished difference Result 68170 states and 257041 transitions. [2022-04-18 20:20:40,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:20:40,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-04-18 20:20:40,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:40,648 INFO L225 Difference]: With dead ends: 68170 [2022-04-18 20:20:40,648 INFO L226 Difference]: Without dead ends: 68170 [2022-04-18 20:20:40,649 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 20:20:40,649 INFO L913 BasicCegarLoop]: 55 mSDtfsCounter, 123 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:40,650 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 85 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:20:40,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68170 states. [2022-04-18 20:20:42,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68170 to 60827. [2022-04-18 20:20:42,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60827 states, 60773 states have (on average 3.8705839764369045) internal successors, (235227), 60826 states have internal predecessors, (235227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:42,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60827 states to 60827 states and 235227 transitions. [2022-04-18 20:20:42,925 INFO L78 Accepts]: Start accepts. Automaton has 60827 states and 235227 transitions. Word has length 15 [2022-04-18 20:20:42,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:42,926 INFO L478 AbstractCegarLoop]: Abstraction has 60827 states and 235227 transitions. [2022-04-18 20:20:42,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:42,926 INFO L276 IsEmpty]: Start isEmpty. Operand 60827 states and 235227 transitions. [2022-04-18 20:20:42,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:20:42,929 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:42,929 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:42,929 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:20:42,929 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:20:42,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:42,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1797421077, now seen corresponding path program 1 times [2022-04-18 20:20:42,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:42,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397128990] [2022-04-18 20:20:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:42,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:43,004 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 20:20:43,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:43,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397128990] [2022-04-18 20:20:43,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397128990] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:43,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:43,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:43,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322501199] [2022-04-18 20:20:43,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:43,008 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:43,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:43,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:43,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:43,011 INFO L87 Difference]: Start difference. First operand 60827 states and 235227 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:43,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:43,965 INFO L93 Difference]: Finished difference Result 64868 states and 249249 transitions. [2022-04-18 20:20:43,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:43,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-04-18 20:20:43,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:44,316 INFO L225 Difference]: With dead ends: 64868 [2022-04-18 20:20:44,317 INFO L226 Difference]: Without dead ends: 64865 [2022-04-18 20:20:44,319 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-18 20:20:44,322 INFO L913 BasicCegarLoop]: 77 mSDtfsCounter, 145 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:44,323 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 204 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:20:44,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64865 states. [2022-04-18 20:20:46,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64865 to 63923. [2022-04-18 20:20:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63923 states, 63869 states have (on average 3.861669980741831) internal successors, (246641), 63922 states have internal predecessors, (246641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63923 states to 63923 states and 246641 transitions. [2022-04-18 20:20:46,375 INFO L78 Accepts]: Start accepts. Automaton has 63923 states and 246641 transitions. Word has length 16 [2022-04-18 20:20:46,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:46,375 INFO L478 AbstractCegarLoop]: Abstraction has 63923 states and 246641 transitions. [2022-04-18 20:20:46,375 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 63923 states and 246641 transitions. [2022-04-18 20:20:46,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:20:46,377 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:46,378 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:46,378 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:20:46,378 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:20:46,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:46,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1874217927, now seen corresponding path program 1 times [2022-04-18 20:20:46,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:46,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332359188] [2022-04-18 20:20:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:20:46,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:46,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332359188] [2022-04-18 20:20:46,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332359188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:46,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:46,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:46,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235370526] [2022-04-18 20:20:46,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:46,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:46,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:46,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:46,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:46,437 INFO L87 Difference]: Start difference. First operand 63923 states and 246641 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:47,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:47,246 INFO L93 Difference]: Finished difference Result 62331 states and 240027 transitions. [2022-04-18 20:20:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-04-18 20:20:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:47,541 INFO L225 Difference]: With dead ends: 62331 [2022-04-18 20:20:47,541 INFO L226 Difference]: Without dead ends: 62331 [2022-04-18 20:20:47,541 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-04-18 20:20:47,542 INFO L913 BasicCegarLoop]: 66 mSDtfsCounter, 115 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:47,543 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 201 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:20:47,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62331 states. [2022-04-18 20:20:49,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62331 to 62239. [2022-04-18 20:20:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62239 states, 62185 states have (on average 3.857345018895232) internal successors, (239869), 62238 states have internal predecessors, (239869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62239 states to 62239 states and 239869 transitions. [2022-04-18 20:20:49,732 INFO L78 Accepts]: Start accepts. Automaton has 62239 states and 239869 transitions. Word has length 16 [2022-04-18 20:20:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:49,733 INFO L478 AbstractCegarLoop]: Abstraction has 62239 states and 239869 transitions. [2022-04-18 20:20:49,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 62239 states and 239869 transitions. [2022-04-18 20:20:49,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-18 20:20:49,739 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:49,739 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:49,740 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 20:20:49,740 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:20:49,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:49,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1577186840, now seen corresponding path program 1 times [2022-04-18 20:20:49,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:49,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170996753] [2022-04-18 20:20:49,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:49,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:49,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:20:49,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:49,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170996753] [2022-04-18 20:20:49,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170996753] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:49,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:49,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:49,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467289535] [2022-04-18 20:20:49,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:49,813 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:49,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:49,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:49,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:49,814 INFO L87 Difference]: Start difference. First operand 62239 states and 239869 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:50,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:50,524 INFO L93 Difference]: Finished difference Result 60031 states and 231317 transitions. [2022-04-18 20:20:50,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:50,525 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-04-18 20:20:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:50,769 INFO L225 Difference]: With dead ends: 60031 [2022-04-18 20:20:50,770 INFO L226 Difference]: Without dead ends: 60031 [2022-04-18 20:20:50,770 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:50,770 INFO L913 BasicCegarLoop]: 53 mSDtfsCounter, 80 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:50,770 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 80 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:20:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60031 states. [2022-04-18 20:20:52,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60031 to 60031. [2022-04-18 20:20:52,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60031 states, 59988 states have (on average 3.856054544242182) internal successors, (231317), 60030 states have internal predecessors, (231317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:52,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60031 states to 60031 states and 231317 transitions. [2022-04-18 20:20:52,793 INFO L78 Accepts]: Start accepts. Automaton has 60031 states and 231317 transitions. Word has length 19 [2022-04-18 20:20:52,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:52,793 INFO L478 AbstractCegarLoop]: Abstraction has 60031 states and 231317 transitions. [2022-04-18 20:20:52,793 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:52,793 INFO L276 IsEmpty]: Start isEmpty. Operand 60031 states and 231317 transitions. [2022-04-18 20:20:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-18 20:20:52,797 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:52,797 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:52,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:20:52,798 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:20:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash -953858548, now seen corresponding path program 1 times [2022-04-18 20:20:52,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:52,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485573001] [2022-04-18 20:20:52,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:52,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:52,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:20:52,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:52,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485573001] [2022-04-18 20:20:52,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485573001] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:52,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:52,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:20:52,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780165623] [2022-04-18 20:20:52,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:52,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:20:52,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:52,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:20:52,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:20:52,906 INFO L87 Difference]: Start difference. First operand 60031 states and 231317 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:54,269 INFO L93 Difference]: Finished difference Result 80724 states and 311634 transitions. [2022-04-18 20:20:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:20:54,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-04-18 20:20:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:54,744 INFO L225 Difference]: With dead ends: 80724 [2022-04-18 20:20:54,744 INFO L226 Difference]: Without dead ends: 80724 [2022-04-18 20:20:54,744 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 20:20:54,745 INFO L913 BasicCegarLoop]: 60 mSDtfsCounter, 104 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:54,745 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 90 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:20:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80724 states. [2022-04-18 20:20:56,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80724 to 80724. [2022-04-18 20:20:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80724 states, 80681 states have (on average 3.8625450849642418) internal successors, (311634), 80723 states have internal predecessors, (311634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80724 states to 80724 states and 311634 transitions. [2022-04-18 20:20:57,372 INFO L78 Accepts]: Start accepts. Automaton has 80724 states and 311634 transitions. Word has length 19 [2022-04-18 20:20:57,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:57,372 INFO L478 AbstractCegarLoop]: Abstraction has 80724 states and 311634 transitions. [2022-04-18 20:20:57,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 80724 states and 311634 transitions. [2022-04-18 20:20:57,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-18 20:20:57,382 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:57,382 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 20:20:57,382 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 20:20:57,382 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:20:57,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash -320286123, now seen corresponding path program 1 times [2022-04-18 20:20:57,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:57,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195380306] [2022-04-18 20:20:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:57,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:57,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:20:57,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:57,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195380306] [2022-04-18 20:20:57,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195380306] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:57,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:57,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:57,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064210262] [2022-04-18 20:20:57,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:57,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:57,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:57,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:57,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:57,441 INFO L87 Difference]: Start difference. First operand 80724 states and 311634 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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 20:20:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:58,664 INFO L93 Difference]: Finished difference Result 77716 states and 299978 transitions. [2022-04-18 20:20:58,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:58,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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 20:20:58,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:59,077 INFO L225 Difference]: With dead ends: 77716 [2022-04-18 20:20:59,077 INFO L226 Difference]: Without dead ends: 77716 [2022-04-18 20:20:59,077 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:59,078 INFO L913 BasicCegarLoop]: 56 mSDtfsCounter, 80 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:59,078 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 73 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:20:59,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77716 states. [2022-04-18 20:21:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77716 to 77716. [2022-04-18 20:21:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77716 states, 77684 states have (on average 3.8615158848668965) internal successors, (299978), 77715 states have internal predecessors, (299978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:21:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77716 states to 77716 states and 299978 transitions. [2022-04-18 20:21:01,334 INFO L78 Accepts]: Start accepts. Automaton has 77716 states and 299978 transitions. Word has length 24 [2022-04-18 20:21:01,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:21:01,335 INFO L478 AbstractCegarLoop]: Abstraction has 77716 states and 299978 transitions. [2022-04-18 20:21:01,335 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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 20:21:01,335 INFO L276 IsEmpty]: Start isEmpty. Operand 77716 states and 299978 transitions. [2022-04-18 20:21:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-18 20:21:01,345 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:21:01,345 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] [2022-04-18 20:21:01,345 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 20:21:01,346 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:21:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:21:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1323106939, now seen corresponding path program 1 times [2022-04-18 20:21:01,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:21:01,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946875855] [2022-04-18 20:21:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:21:01,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:21:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:21:01,419 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 20:21:01,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:21:01,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946875855] [2022-04-18 20:21:01,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946875855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:21:01,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:21:01,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:21:01,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521537237] [2022-04-18 20:21:01,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:21:01,421 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:21:01,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:21:01,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:21:01,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:21:01,422 INFO L87 Difference]: Start difference. First operand 77716 states and 299978 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:21:02,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:21:02,708 INFO L93 Difference]: Finished difference Result 79765 states and 305557 transitions. [2022-04-18 20:21:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:21:02,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-04-18 20:21:02,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:21:03,060 INFO L225 Difference]: With dead ends: 79765 [2022-04-18 20:21:03,060 INFO L226 Difference]: Without dead ends: 79765 [2022-04-18 20:21:03,060 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 20:21:03,061 INFO L913 BasicCegarLoop]: 53 mSDtfsCounter, 74 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-18 20:21:03,061 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 81 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-18 20:21:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79765 states. [2022-04-18 20:21:05,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79765 to 79191. [2022-04-18 20:21:05,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79191 states, 79159 states have (on average 3.8455387258555565) internal successors, (304409), 79190 states have internal predecessors, (304409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:21:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79191 states to 79191 states and 304409 transitions. [2022-04-18 20:21:05,687 INFO L78 Accepts]: Start accepts. Automaton has 79191 states and 304409 transitions. Word has length 25 [2022-04-18 20:21:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:21:05,687 INFO L478 AbstractCegarLoop]: Abstraction has 79191 states and 304409 transitions. [2022-04-18 20:21:05,687 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:21:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 79191 states and 304409 transitions. [2022-04-18 20:21:05,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-18 20:21:05,707 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:21:05,707 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 20:21:05,707 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 20:21:05,707 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-04-18 20:21:05,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:21:05,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1836285674, now seen corresponding path program 1 times [2022-04-18 20:21:05,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:21:05,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501052635] [2022-04-18 20:21:05,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:21:05,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:21:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:21:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-18 20:21:05,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:21:05,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501052635] [2022-04-18 20:21:05,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501052635] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:21:05,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:21:05,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:21:05,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35772819] [2022-04-18 20:21:05,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:21:05,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:21:05,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:21:05,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:21:05,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:21:05,797 INFO L87 Difference]: Start difference. First operand 79191 states and 304409 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 20:21:07,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:21:07,172 INFO L93 Difference]: Finished difference Result 83777 states and 321811 transitions. [2022-04-18 20:21:07,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:21:07,173 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 20:21:07,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:21:07,639 INFO L225 Difference]: With dead ends: 83777 [2022-04-18 20:21:07,640 INFO L226 Difference]: Without dead ends: 83777 [2022-04-18 20:21:07,640 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 20:21:07,640 INFO L913 BasicCegarLoop]: 56 mSDtfsCounter, 104 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:21:07,640 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 82 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:21:07,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83777 states.