./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.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-more-vector-add.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 f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:21:58,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:21:58,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:21:58,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:21:58,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:21:58,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:21:58,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:21:58,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:21:58,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:21:58,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:21:58,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:21:58,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:21:58,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:21:58,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:21:58,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:21:58,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:21:58,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:21:58,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:21:58,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:21:58,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:21:58,751 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:21:58,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:21:58,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:21:58,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:21:58,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:21:58,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:21:58,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:21:58,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:21:58,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:21:58,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:21:58,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:21:58,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:21:58,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:21:58,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:21:58,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:21:58,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:21:58,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:21:58,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:21:58,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:21:58,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:21:58,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:21:58,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:21:58,767 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:21:58,793 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:21:58,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:21:58,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:21:58,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:21:58,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:21:58,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:21:58,795 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:21:58,795 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:21:58,796 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:21:58,796 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:21:58,796 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:21:58,796 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:21:58,797 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:21:58,797 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:21:58,797 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:21:58,797 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:21:58,798 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:21:58,798 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:21:58,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:21:58,799 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:21:58,799 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:21:58,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:21:58,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:21:58,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:21:58,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:21:58,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:21:58,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:21:58,800 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:21:58,801 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:21:58,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:21:58,801 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:21:58,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:21:58,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:21:58,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:21:58,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:21:58,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:21:58,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:21:58,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:21:58,802 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:21:58,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:21:58,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:21:58,803 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:21:58,803 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:21:58,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d [2022-04-18 20:21:58,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:21:59,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:21:59,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:21:59,038 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:21:59,039 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:21:59,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-04-18 20:21:59,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e29412646/cffaa5a23b4d4789b940acb29db2bebf/FLAGab0f062c9 [2022-04-18 20:21:59,480 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:21:59,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-04-18 20:21:59,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e29412646/cffaa5a23b4d4789b940acb29db2bebf/FLAGab0f062c9 [2022-04-18 20:21:59,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e29412646/cffaa5a23b4d4789b940acb29db2bebf [2022-04-18 20:21:59,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:21:59,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:21:59,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:21:59,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:21:59,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:21:59,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77293801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59, skipping insertion in model container [2022-04-18 20:21:59,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:21:59,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:21:59,729 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-more-vector-add.wvr.c[2598,2611] [2022-04-18 20:21:59,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:21:59,739 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:21:59,774 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-more-vector-add.wvr.c[2598,2611] [2022-04-18 20:21:59,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:21:59,788 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:21:59,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59 WrapperNode [2022-04-18 20:21:59,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:21:59,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:21:59,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:21:59,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:21:59,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,828 INFO L137 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 298 [2022-04-18 20:21:59,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:21:59,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:21:59,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:21:59,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:21:59,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:21:59,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:21:59,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:21:59,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:21:59,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (1/1) ... [2022-04-18 20:21:59,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:21:59,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:21:59,897 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 20:21:59,915 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 20:21:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:21:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:21:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:21:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:21:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 20:21:59,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 20:21:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 20:21:59,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 20:21:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 20:21:59,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 20:21:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:21:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 20:21:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:21:59,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:21:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:21:59,939 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 20:22:00,054 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:22:00,056 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:22:00,631 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:22:00,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:22:00,644 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-04-18 20:22:00,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:22:00 BoogieIcfgContainer [2022-04-18 20:22:00,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:22:00,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:22:00,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:22:00,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:22:00,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:21:59" (1/3) ... [2022-04-18 20:22:00,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a20eacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:22:00, skipping insertion in model container [2022-04-18 20:22:00,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:21:59" (2/3) ... [2022-04-18 20:22:00,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a20eacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:22:00, skipping insertion in model container [2022-04-18 20:22:00,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:22:00" (3/3) ... [2022-04-18 20:22:00,652 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2022-04-18 20:22:00,656 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:22:00,656 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:22:00,657 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2022-04-18 20:22:00,657 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:22:00,756 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 20:22:00,792 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:22:00,799 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 20:22:00,799 INFO L341 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-04-18 20:22:00,817 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:22:00,827 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 507 places, 524 transitions, 1072 flow [2022-04-18 20:22:00,828 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 507 places, 524 transitions, 1072 flow [2022-04-18 20:22:00,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 507 places, 524 transitions, 1072 flow [2022-04-18 20:22:00,959 INFO L129 PetriNetUnfolder]: 27/521 cut-off events. [2022-04-18 20:22:00,960 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 20:22:00,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 521 events. 27/521 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 729 event pairs, 0 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 386. Up to 2 conditions per place. [2022-04-18 20:22:00,977 INFO L116 LiptonReduction]: Number of co-enabled transitions 20034 [2022-04-18 20:22:12,036 INFO L131 LiptonReduction]: Checked pairs total: 178624 [2022-04-18 20:22:12,036 INFO L133 LiptonReduction]: Total number of compositions: 552 [2022-04-18 20:22:12,042 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 158 transitions, 340 flow [2022-04-18 20:22:17,651 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:22:17,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:22:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:22:17,993 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:22:17,993 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:22:17,994 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 20:22:17,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:22:18,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1866, now seen corresponding path program 1 times [2022-04-18 20:22:18,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:22:18,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987642283] [2022-04-18 20:22:18,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:22:18,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:22:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:22:18,068 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 20:22:18,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:22:18,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987642283] [2022-04-18 20:22:18,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987642283] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:22:18,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:22:18,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:22:18,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251744211] [2022-04-18 20:22:18,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:22:18,074 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:22:18,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:22:18,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:22:18,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:22:18,508 INFO L87 Difference]: Start difference. First operand has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 0 states have call successors, (0), 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 20:22:21,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:22:21,059 INFO L93 Difference]: Finished difference Result 147589 states and 565341 transitions. [2022-04-18 20:22:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:22:21,062 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 20:22:21,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:22:22,455 INFO L225 Difference]: With dead ends: 147589 [2022-04-18 20:22:22,456 INFO L226 Difference]: Without dead ends: 147587 [2022-04-18 20:22:22,456 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 20:22:22,458 INFO L913 BasicCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:22:22,459 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:22:22,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147587 states. [2022-04-18 20:22:26,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147587 to 147587. [2022-04-18 20:22:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147587 states, 147440 states have (on average 3.8343597395550733) internal successors, (565338), 147586 states have internal predecessors, (565338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:22:28,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147587 states to 147587 states and 565338 transitions. [2022-04-18 20:22:28,402 INFO L78 Accepts]: Start accepts. Automaton has 147587 states and 565338 transitions. Word has length 1 [2022-04-18 20:22:28,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:22:28,402 INFO L478 AbstractCegarLoop]: Abstraction has 147587 states and 565338 transitions. [2022-04-18 20:22:28,403 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 20:22:28,403 INFO L276 IsEmpty]: Start isEmpty. Operand 147587 states and 565338 transitions. [2022-04-18 20:22:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 20:22:28,405 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:22:28,405 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:22:28,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:22:28,406 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 20:22:28,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:22:28,406 INFO L85 PathProgramCache]: Analyzing trace with hash 2121031238, now seen corresponding path program 1 times [2022-04-18 20:22:28,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:22:28,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28214943] [2022-04-18 20:22:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:22:28,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:22:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:22:28,604 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 20:22:28,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:22:28,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28214943] [2022-04-18 20:22:28,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28214943] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:22:28,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:22:28,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:22:28,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607954624] [2022-04-18 20:22:28,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:22:28,609 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:22:28,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:22:28,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:22:28,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:22:28,619 INFO L87 Difference]: Start difference. First operand 147587 states and 565338 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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 20:22:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:22:31,051 INFO L93 Difference]: Finished difference Result 204621 states and 763952 transitions. [2022-04-18 20:22:31,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-18 20:22:31,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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 20:22:31,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:22:32,628 INFO L225 Difference]: With dead ends: 204621 [2022-04-18 20:22:32,628 INFO L226 Difference]: Without dead ends: 204621 [2022-04-18 20:22:32,629 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 20:22:32,631 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 417 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:22:32,632 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 342 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:22:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204621 states. [2022-04-18 20:22:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204621 to 164605. [2022-04-18 20:22:37,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164605 states, 164458 states have (on average 3.837569470624719) internal successors, (631119), 164604 states have internal predecessors, (631119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:22:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164605 states to 164605 states and 631119 transitions. [2022-04-18 20:22:39,264 INFO L78 Accepts]: Start accepts. Automaton has 164605 states and 631119 transitions. Word has length 15 [2022-04-18 20:22:39,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:22:39,264 INFO L478 AbstractCegarLoop]: Abstraction has 164605 states and 631119 transitions. [2022-04-18 20:22:39,265 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 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 20:22:39,265 INFO L276 IsEmpty]: Start isEmpty. Operand 164605 states and 631119 transitions. [2022-04-18 20:22:39,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:22:39,267 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:22:39,267 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:22:39,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:22:39,268 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-04-18 20:22:39,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:22:39,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1647970475, now seen corresponding path program 1 times [2022-04-18 20:22:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:22:39,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054942350] [2022-04-18 20:22:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:22:39,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:22:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:22:39,384 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 20:22:39,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:22:39,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054942350] [2022-04-18 20:22:39,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054942350] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:22:39,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:22:39,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 20:22:39,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738805732] [2022-04-18 20:22:39,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:22:39,389 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 20:22:39,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:22:39,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 20:22:39,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 20:22:39,390 INFO L87 Difference]: Start difference. First operand 164605 states and 631119 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 20:22:42,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:22:42,909 INFO L93 Difference]: Finished difference Result 268668 states and 1021677 transitions. [2022-04-18 20:22:42,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 20:22:42,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 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 20:22:42,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:22:44,478 INFO L225 Difference]: With dead ends: 268668 [2022-04-18 20:22:44,478 INFO L226 Difference]: Without dead ends: 268668 [2022-04-18 20:22:44,478 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 20:22:44,480 INFO L913 BasicCegarLoop]: 84 mSDtfsCounter, 195 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-18 20:22:44,481 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 119 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-18 20:22:45,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268668 states.