./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.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-dot-product.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 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 20:20:00,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 20:20:00,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 20:20:00,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 20:20:00,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 20:20:00,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 20:20:00,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 20:20:00,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 20:20:00,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 20:20:00,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 20:20:00,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 20:20:00,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 20:20:00,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 20:20:00,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 20:20:00,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 20:20:00,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 20:20:00,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 20:20:00,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 20:20:00,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 20:20:00,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 20:20:00,376 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 20:20:00,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 20:20:00,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 20:20:00,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 20:20:00,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 20:20:00,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 20:20:00,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 20:20:00,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 20:20:00,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 20:20:00,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 20:20:00,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 20:20:00,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 20:20:00,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 20:20:00,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 20:20:00,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 20:20:00,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 20:20:00,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 20:20:00,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 20:20:00,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 20:20:00,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 20:20:00,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 20:20:00,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 20:20:00,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 20:20:00,433 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 20:20:00,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 20:20:00,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 20:20:00,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 20:20:00,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 20:20:00,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 20:20:00,435 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 20:20:00,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 20:20:00,436 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 20:20:00,437 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 20:20:00,437 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 20:20:00,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 20:20:00,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 20:20:00,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 20:20:00,438 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 20:20:00,438 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 20:20:00,440 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 20:20:00,440 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 20:20:00,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 20:20:00,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 20:20:00,442 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 20:20:00,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 20:20:00,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 20:20:00,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 20:20:00,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 20:20:00,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 20:20:00,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 20:20:00,443 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 20:20:00,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 20:20:00,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 20:20:00,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 20:20:00,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 20:20:00,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 20:20:00,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 20:20:00,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:20:00,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 20:20:00,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 20:20:00,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 20:20:00,446 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 20:20:00,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 20:20:00,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 20:20:00,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 20:20:00,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 20:20:00,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 [2022-04-18 20:20:00,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 20:20:00,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 20:20:00,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 20:20:00,759 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 20:20:00,760 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 20:20:00,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2022-04-18 20:20:00,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ced432fc2/9544c8683e7f4ae99e418191eec62801/FLAGb31232ea3 [2022-04-18 20:20:01,269 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 20:20:01,269 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2022-04-18 20:20:01,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ced432fc2/9544c8683e7f4ae99e418191eec62801/FLAGb31232ea3 [2022-04-18 20:20:01,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ced432fc2/9544c8683e7f4ae99e418191eec62801 [2022-04-18 20:20:01,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 20:20:01,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 20:20:01,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 20:20:01,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 20:20:01,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 20:20:01,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3692081a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01, skipping insertion in model container [2022-04-18 20:20:01,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 20:20:01,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 20:20:01,521 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-dot-product.wvr.c[2865,2878] [2022-04-18 20:20:01,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:20:01,534 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 20:20:01,569 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-dot-product.wvr.c[2865,2878] [2022-04-18 20:20:01,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 20:20:01,591 INFO L208 MainTranslator]: Completed translation [2022-04-18 20:20:01,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01 WrapperNode [2022-04-18 20:20:01,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 20:20:01,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 20:20:01,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 20:20:01,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 20:20:01,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,675 INFO L137 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 437 [2022-04-18 20:20:01,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 20:20:01,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 20:20:01,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 20:20:01,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 20:20:01,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 20:20:01,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 20:20:01,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 20:20:01,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 20:20:01,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (1/1) ... [2022-04-18 20:20:01,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 20:20:01,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:20:01,797 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 20:20:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 20:20:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 20:20:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 20:20:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 20:20:01,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 20:20:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 20:20:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 20:20:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 20:20:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 20:20:01,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 20:20:01,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 20:20:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 20:20:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 20:20:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 20:20:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 20:20:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 20:20:01,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 20:20:01,848 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 20:20:01,863 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 20:20:01,993 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 20:20:02,005 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 20:20:02,731 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 20:20:02,883 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 20:20:02,883 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-04-18 20:20:02,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:20:02 BoogieIcfgContainer [2022-04-18 20:20:02,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 20:20:02,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 20:20:02,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 20:20:02,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 20:20:02,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:20:01" (1/3) ... [2022-04-18 20:20:02,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313177f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:20:02, skipping insertion in model container [2022-04-18 20:20:02,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:20:01" (2/3) ... [2022-04-18 20:20:02,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313177f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:20:02, skipping insertion in model container [2022-04-18 20:20:02,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:20:02" (3/3) ... [2022-04-18 20:20:02,898 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2022-04-18 20:20:02,903 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 20:20:02,903 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 20:20:02,903 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-04-18 20:20:02,904 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 20:20:03,016 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 20:20:03,056 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 20:20:03,062 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 20:20:03,063 INFO L341 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2022-04-18 20:20:03,086 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 20:20:03,099 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 412 places, 428 transitions, 880 flow [2022-04-18 20:20:03,103 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 412 places, 428 transitions, 880 flow [2022-04-18 20:20:03,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 412 places, 428 transitions, 880 flow [2022-04-18 20:20:03,274 INFO L129 PetriNetUnfolder]: 26/425 cut-off events. [2022-04-18 20:20:03,275 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 20:20:03,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 26/425 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 811 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 313. Up to 2 conditions per place. [2022-04-18 20:20:03,304 INFO L116 LiptonReduction]: Number of co-enabled transitions 29394 [2022-04-18 20:20:19,790 INFO L131 LiptonReduction]: Checked pairs total: 177544 [2022-04-18 20:20:19,790 INFO L133 LiptonReduction]: Total number of compositions: 547 [2022-04-18 20:20:19,799 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 143 transitions, 310 flow [2022-04-18 20:20:25,356 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 160991 states, 157930 states have (on average 4.2488380928259355) internal successors, (671019), 160990 states have internal predecessors, (671019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:25,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 160991 states, 157930 states have (on average 4.2488380928259355) internal successors, (671019), 160990 states have internal predecessors, (671019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:25,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 20:20:25,701 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:25,701 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 20:20:25,703 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:25,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:25,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1992, now seen corresponding path program 1 times [2022-04-18 20:20:25,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:25,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070767291] [2022-04-18 20:20:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:25,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:25,802 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 20:20:25,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:25,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070767291] [2022-04-18 20:20:25,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070767291] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:25,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:25,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 20:20:25,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855226626] [2022-04-18 20:20:25,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:25,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 20:20:25,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:25,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 20:20:25,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 20:20:26,160 INFO L87 Difference]: Start difference. First operand has 160991 states, 157930 states have (on average 4.2488380928259355) internal successors, (671019), 160990 states have internal predecessors, (671019), 0 states have call successors, (0), 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 20:20:27,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:27,340 INFO L93 Difference]: Finished difference Result 56838 states and 224415 transitions. [2022-04-18 20:20:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 20:20:27,343 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 20:20:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:28,237 INFO L225 Difference]: With dead ends: 56838 [2022-04-18 20:20:28,237 INFO L226 Difference]: Without dead ends: 56835 [2022-04-18 20:20:28,238 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 20:20:28,242 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:28,243 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:20:28,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56835 states. [2022-04-18 20:20:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56835 to 56835. [2022-04-18 20:20:30,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56835 states, 56770 states have (on average 3.9529681169631847) internal successors, (224410), 56834 states have internal predecessors, (224410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:31,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56835 states to 56835 states and 224410 transitions. [2022-04-18 20:20:31,248 INFO L78 Accepts]: Start accepts. Automaton has 56835 states and 224410 transitions. Word has length 1 [2022-04-18 20:20:31,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:31,248 INFO L478 AbstractCegarLoop]: Abstraction has 56835 states and 224410 transitions. [2022-04-18 20:20:31,249 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 20:20:31,249 INFO L276 IsEmpty]: Start isEmpty. Operand 56835 states and 224410 transitions. [2022-04-18 20:20:31,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 20:20:31,254 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:31,254 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:31,254 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 20:20:31,255 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:31,257 INFO L85 PathProgramCache]: Analyzing trace with hash 715790664, now seen corresponding path program 1 times [2022-04-18 20:20:31,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:31,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080887099] [2022-04-18 20:20:31,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:31,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:31,474 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 20:20:31,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:31,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080887099] [2022-04-18 20:20:31,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080887099] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:31,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:31,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 20:20:31,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441530159] [2022-04-18 20:20:31,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:31,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 20:20:31,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:31,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 20:20:31,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 20:20:31,483 INFO L87 Difference]: Start difference. First operand 56835 states and 224410 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:32,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:32,131 INFO L93 Difference]: Finished difference Result 56837 states and 224413 transitions. [2022-04-18 20:20:32,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 20:20:32,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-04-18 20:20:32,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:33,136 INFO L225 Difference]: With dead ends: 56837 [2022-04-18 20:20:33,136 INFO L226 Difference]: Without dead ends: 56836 [2022-04-18 20:20:33,136 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:33,137 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:33,138 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:20:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56836 states. [2022-04-18 20:20:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56836 to 56836. [2022-04-18 20:20:34,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56836 states, 56771 states have (on average 3.952916101530711) internal successors, (224411), 56835 states have internal predecessors, (224411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56836 states to 56836 states and 224411 transitions. [2022-04-18 20:20:35,495 INFO L78 Accepts]: Start accepts. Automaton has 56836 states and 224411 transitions. Word has length 12 [2022-04-18 20:20:35,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:35,496 INFO L478 AbstractCegarLoop]: Abstraction has 56836 states and 224411 transitions. [2022-04-18 20:20:35,496 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:35,496 INFO L276 IsEmpty]: Start isEmpty. Operand 56836 states and 224411 transitions. [2022-04-18 20:20:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-18 20:20:35,502 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:35,503 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:35,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 20:20:35,503 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:35,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1552185354, now seen corresponding path program 1 times [2022-04-18 20:20:35,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:35,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87289671] [2022-04-18 20:20:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:35,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:35,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 20:20:35,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:35,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87289671] [2022-04-18 20:20:35,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87289671] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:35,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:35,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:35,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273009160] [2022-04-18 20:20:35,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:35,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:35,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:35,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:35,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:35,671 INFO L87 Difference]: Start difference. First operand 56836 states and 224411 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:36,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:36,458 INFO L93 Difference]: Finished difference Result 49236 states and 192851 transitions. [2022-04-18 20:20:36,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:36,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-04-18 20:20:36,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:37,108 INFO L225 Difference]: With dead ends: 49236 [2022-04-18 20:20:37,109 INFO L226 Difference]: Without dead ends: 49236 [2022-04-18 20:20:37,109 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 20:20:37,110 INFO L913 BasicCegarLoop]: 58 mSDtfsCounter, 97 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:37,111 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 94 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:20:37,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49236 states. [2022-04-18 20:20:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49236 to 49236. [2022-04-18 20:20:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49236 states, 49198 states have (on average 3.919895117687711) internal successors, (192851), 49235 states have internal predecessors, (192851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:39,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49236 states to 49236 states and 192851 transitions. [2022-04-18 20:20:39,050 INFO L78 Accepts]: Start accepts. Automaton has 49236 states and 192851 transitions. Word has length 13 [2022-04-18 20:20:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:39,051 INFO L478 AbstractCegarLoop]: Abstraction has 49236 states and 192851 transitions. [2022-04-18 20:20:39,051 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 49236 states and 192851 transitions. [2022-04-18 20:20:39,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-18 20:20:39,052 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:39,052 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:39,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 20:20:39,053 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:39,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:39,053 INFO L85 PathProgramCache]: Analyzing trace with hash 387118084, now seen corresponding path program 1 times [2022-04-18 20:20:39,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:39,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285908600] [2022-04-18 20:20:39,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:39,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:39,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 20:20:39,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:39,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285908600] [2022-04-18 20:20:39,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285908600] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:39,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:39,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:39,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506523588] [2022-04-18 20:20:39,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:39,167 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:39,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:39,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:39,170 INFO L87 Difference]: Start difference. First operand 49236 states and 192851 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:39,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:39,862 INFO L93 Difference]: Finished difference Result 44592 states and 174651 transitions. [2022-04-18 20:20:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:39,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-04-18 20:20:39,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:40,061 INFO L225 Difference]: With dead ends: 44592 [2022-04-18 20:20:40,061 INFO L226 Difference]: Without dead ends: 44592 [2022-04-18 20:20:40,061 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 20:20:40,063 INFO L913 BasicCegarLoop]: 54 mSDtfsCounter, 80 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:40,063 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 80 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:20:40,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44592 states. [2022-04-18 20:20:41,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44592 to 44592. [2022-04-18 20:20:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44592 states, 44572 states have (on average 3.918401687157857) internal successors, (174651), 44591 states have internal predecessors, (174651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:42,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44592 states to 44592 states and 174651 transitions. [2022-04-18 20:20:42,023 INFO L78 Accepts]: Start accepts. Automaton has 44592 states and 174651 transitions. Word has length 13 [2022-04-18 20:20:42,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:42,023 INFO L478 AbstractCegarLoop]: Abstraction has 44592 states and 174651 transitions. [2022-04-18 20:20:42,023 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:42,023 INFO L276 IsEmpty]: Start isEmpty. Operand 44592 states and 174651 transitions. [2022-04-18 20:20:42,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-18 20:20:42,025 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:42,025 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:42,025 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 20:20:42,025 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:42,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:42,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1511968091, now seen corresponding path program 1 times [2022-04-18 20:20:42,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:42,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040049209] [2022-04-18 20:20:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:42,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:42,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:20:42,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:42,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040049209] [2022-04-18 20:20:42,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040049209] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:20:42,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020610799] [2022-04-18 20:20:42,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:42,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:20:42,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:20:42,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:20:42,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 20:20:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:42,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-18 20:20:42,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:20:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:20:42,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 20:20:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:20:42,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020610799] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 20:20:42,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1882560535] [2022-04-18 20:20:42,454 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-18 20:20:42,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 20:20:42,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-04-18 20:20:42,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335472734] [2022-04-18 20:20:42,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 20:20:42,462 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-04-18 20:20:42,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:42,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-04-18 20:20:42,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-04-18 20:20:42,463 INFO L87 Difference]: Start difference. First operand 44592 states and 174651 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:43,287 INFO L93 Difference]: Finished difference Result 53646 states and 207194 transitions. [2022-04-18 20:20:43,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-18 20:20:43,288 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 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 20:20:43,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:43,529 INFO L225 Difference]: With dead ends: 53646 [2022-04-18 20:20:43,529 INFO L226 Difference]: Without dead ends: 53646 [2022-04-18 20:20:43,530 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2022-04-18 20:20:43,530 INFO L913 BasicCegarLoop]: 71 mSDtfsCounter, 310 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:43,531 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 589 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:20:44,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53646 states. [2022-04-18 20:20:45,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53646 to 51294. [2022-04-18 20:20:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51294 states, 51274 states have (on average 3.9111830557397513) internal successors, (200542), 51293 states have internal predecessors, (200542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51294 states to 51294 states and 200542 transitions. [2022-04-18 20:20:45,904 INFO L78 Accepts]: Start accepts. Automaton has 51294 states and 200542 transitions. Word has length 15 [2022-04-18 20:20:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:45,905 INFO L478 AbstractCegarLoop]: Abstraction has 51294 states and 200542 transitions. [2022-04-18 20:20:45,905 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 51294 states and 200542 transitions. [2022-04-18 20:20:45,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-04-18 20:20:45,908 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:45,908 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:45,927 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-18 20:20:46,113 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:20:46,113 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:46,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:46,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1639980343, now seen corresponding path program 2 times [2022-04-18 20:20:46,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:46,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821047347] [2022-04-18 20:20:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:46,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:46,210 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 20:20:46,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:46,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821047347] [2022-04-18 20:20:46,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821047347] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:46,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:46,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:46,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297328951] [2022-04-18 20:20:46,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:46,211 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:46,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:46,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:46,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:46,212 INFO L87 Difference]: Start difference. First operand 51294 states and 200542 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 20:20:47,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:47,101 INFO L93 Difference]: Finished difference Result 46852 states and 183334 transitions. [2022-04-18 20:20:47,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:47,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 16 [2022-04-18 20:20:47,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:47,317 INFO L225 Difference]: With dead ends: 46852 [2022-04-18 20:20:47,318 INFO L226 Difference]: Without dead ends: 46852 [2022-04-18 20:20:47,318 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 20:20:47,318 INFO L913 BasicCegarLoop]: 54 mSDtfsCounter, 76 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:47,319 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 93 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-18 20:20:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46852 states. [2022-04-18 20:20:48,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46852 to 46852. [2022-04-18 20:20:48,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46852 states, 46844 states have (on average 3.91371360259585) internal successors, (183334), 46851 states have internal predecessors, (183334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:49,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46852 states to 46852 states and 183334 transitions. [2022-04-18 20:20:49,371 INFO L78 Accepts]: Start accepts. Automaton has 46852 states and 183334 transitions. Word has length 16 [2022-04-18 20:20:49,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:49,371 INFO L478 AbstractCegarLoop]: Abstraction has 46852 states and 183334 transitions. [2022-04-18 20:20:49,371 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 20:20:49,372 INFO L276 IsEmpty]: Start isEmpty. Operand 46852 states and 183334 transitions. [2022-04-18 20:20:49,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-18 20:20:49,376 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:49,376 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:49,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 20:20:49,376 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:49,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1314913162, now seen corresponding path program 1 times [2022-04-18 20:20:49,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:49,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147238546] [2022-04-18 20:20:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:49,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 20:20:49,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:49,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147238546] [2022-04-18 20:20:49,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147238546] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:49,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:49,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:49,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817497434] [2022-04-18 20:20:49,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:49,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:49,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:49,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:49,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:49,514 INFO L87 Difference]: Start difference. First operand 46852 states and 183334 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:50,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:50,181 INFO L93 Difference]: Finished difference Result 42008 states and 164554 transitions. [2022-04-18 20:20:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:50,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-04-18 20:20:50,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:50,343 INFO L225 Difference]: With dead ends: 42008 [2022-04-18 20:20:50,343 INFO L226 Difference]: Without dead ends: 41976 [2022-04-18 20:20:50,343 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 20:20:50,344 INFO L913 BasicCegarLoop]: 55 mSDtfsCounter, 84 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:50,344 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 75 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 20:20:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41976 states. [2022-04-18 20:20:51,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41976 to 41976. [2022-04-18 20:20:51,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41976 states, 41974 states have (on average 3.9188068804498024) internal successors, (164488), 41975 states have internal predecessors, (164488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:51,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41976 states to 41976 states and 164488 transitions. [2022-04-18 20:20:51,883 INFO L78 Accepts]: Start accepts. Automaton has 41976 states and 164488 transitions. Word has length 17 [2022-04-18 20:20:51,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:51,884 INFO L478 AbstractCegarLoop]: Abstraction has 41976 states and 164488 transitions. [2022-04-18 20:20:51,884 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:51,884 INFO L276 IsEmpty]: Start isEmpty. Operand 41976 states and 164488 transitions. [2022-04-18 20:20:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-18 20:20:51,897 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:51,897 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:51,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 20:20:51,898 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:51,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:51,898 INFO L85 PathProgramCache]: Analyzing trace with hash -860704704, now seen corresponding path program 1 times [2022-04-18 20:20:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:51,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493440013] [2022-04-18 20:20:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:20:51,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:51,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493440013] [2022-04-18 20:20:51,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493440013] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 20:20:51,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150899403] [2022-04-18 20:20:51,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:51,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:20:51,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 20:20:51,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 20:20:51,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 20:20:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:52,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-18 20:20:52,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 20:20:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:20:52,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 20:20:52,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 20:20:52,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150899403] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-18 20:20:52,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-18 20:20:52,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2022-04-18 20:20:52,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505099323] [2022-04-18 20:20:52,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:52,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:52,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:52,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:52,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-04-18 20:20:52,223 INFO L87 Difference]: Start difference. First operand 41976 states and 164488 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:52,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:52,625 INFO L93 Difference]: Finished difference Result 46352 states and 181638 transitions. [2022-04-18 20:20:52,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:52,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-04-18 20:20:52,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:53,323 INFO L225 Difference]: With dead ends: 46352 [2022-04-18 20:20:53,324 INFO L226 Difference]: Without dead ends: 46352 [2022-04-18 20:20:53,324 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-04-18 20:20:53,325 INFO L913 BasicCegarLoop]: 57 mSDtfsCounter, 143 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:53,326 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 88 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 20:20:53,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46352 states. [2022-04-18 20:20:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46352 to 46352. [2022-04-18 20:20:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46352 states, 46350 states have (on average 3.9188349514563106) internal successors, (181638), 46351 states have internal predecessors, (181638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:54,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46352 states to 46352 states and 181638 transitions. [2022-04-18 20:20:54,941 INFO L78 Accepts]: Start accepts. Automaton has 46352 states and 181638 transitions. Word has length 22 [2022-04-18 20:20:54,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:54,941 INFO L478 AbstractCegarLoop]: Abstraction has 46352 states and 181638 transitions. [2022-04-18 20:20:54,941 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:54,941 INFO L276 IsEmpty]: Start isEmpty. Operand 46352 states and 181638 transitions. [2022-04-18 20:20:55,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-18 20:20:55,007 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:55,007 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:55,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-18 20:20:55,208 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 20:20:55,208 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:55,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:55,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1933913706, now seen corresponding path program 1 times [2022-04-18 20:20:55,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:55,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625041461] [2022-04-18 20:20:55,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:55,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:55,306 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 20:20:55,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:55,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625041461] [2022-04-18 20:20:55,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625041461] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:55,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:55,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:55,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37373207] [2022-04-18 20:20:55,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:55,307 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:55,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:55,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:55,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:55,308 INFO L87 Difference]: Start difference. First operand 46352 states and 181638 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:55,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:55,882 INFO L93 Difference]: Finished difference Result 45995 states and 180529 transitions. [2022-04-18 20:20:55,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:55,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 38 [2022-04-18 20:20:55,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:56,059 INFO L225 Difference]: With dead ends: 45995 [2022-04-18 20:20:56,059 INFO L226 Difference]: Without dead ends: 45995 [2022-04-18 20:20:56,059 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 20:20:56,060 INFO L913 BasicCegarLoop]: 53 mSDtfsCounter, 61 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:56,060 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 83 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-18 20:20:56,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45995 states. [2022-04-18 20:20:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45995 to 45995. [2022-04-18 20:20:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45995 states, 45994 states have (on average 3.925055442014176) internal successors, (180529), 45994 states have internal predecessors, (180529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:57,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45995 states to 45995 states and 180529 transitions. [2022-04-18 20:20:57,595 INFO L78 Accepts]: Start accepts. Automaton has 45995 states and 180529 transitions. Word has length 38 [2022-04-18 20:20:57,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:57,595 INFO L478 AbstractCegarLoop]: Abstraction has 45995 states and 180529 transitions. [2022-04-18 20:20:57,596 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand 45995 states and 180529 transitions. [2022-04-18 20:20:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-04-18 20:20:57,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 20:20:57,698 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:57,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 20:20:57,698 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-04-18 20:20:57,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 20:20:57,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1662333436, now seen corresponding path program 1 times [2022-04-18 20:20:57,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 20:20:57,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817774586] [2022-04-18 20:20:57,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 20:20:57,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 20:20:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 20:20:57,784 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 20:20:57,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 20:20:57,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817774586] [2022-04-18 20:20:57,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817774586] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 20:20:57,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 20:20:57,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 20:20:57,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698250255] [2022-04-18 20:20:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 20:20:57,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 20:20:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 20:20:57,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 20:20:57,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 20:20:57,786 INFO L87 Difference]: Start difference. First operand 45995 states and 180529 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:58,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 20:20:58,834 INFO L93 Difference]: Finished difference Result 45978 states and 180494 transitions. [2022-04-18 20:20:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 20:20:58,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-04-18 20:20:58,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 20:20:58,835 INFO L225 Difference]: With dead ends: 45978 [2022-04-18 20:20:58,835 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 20:20:58,836 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 20:20:58,837 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 27 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-18 20:20:58,838 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 75 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-18 20:20:58,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 20:20:58,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 20:20:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 20:20:58,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2022-04-18 20:20:58,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 20:20:58,839 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 20:20:58,839 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 20:20:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 20:20:58,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 20:20:58,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (81 of 82 remaining) [2022-04-18 20:20:58,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (80 of 82 remaining) [2022-04-18 20:20:58,841 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (79 of 82 remaining) [2022-04-18 20:20:58,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (78 of 82 remaining) [2022-04-18 20:20:58,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (77 of 82 remaining) [2022-04-18 20:20:58,843 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (76 of 82 remaining) [2022-04-18 20:20:58,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (75 of 82 remaining) [2022-04-18 20:20:58,844 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (74 of 82 remaining) [2022-04-18 20:20:58,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (73 of 82 remaining) [2022-04-18 20:20:58,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (72 of 82 remaining) [2022-04-18 20:20:58,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (71 of 82 remaining) [2022-04-18 20:20:58,845 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (70 of 82 remaining) [2022-04-18 20:20:58,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (69 of 82 remaining) [2022-04-18 20:20:58,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (68 of 82 remaining) [2022-04-18 20:20:58,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (67 of 82 remaining) [2022-04-18 20:20:58,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (66 of 82 remaining) [2022-04-18 20:20:58,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (65 of 82 remaining) [2022-04-18 20:20:58,846 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (64 of 82 remaining) [2022-04-18 20:20:58,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (63 of 82 remaining) [2022-04-18 20:20:58,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (62 of 82 remaining) [2022-04-18 20:20:58,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (61 of 82 remaining) [2022-04-18 20:20:58,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (60 of 82 remaining) [2022-04-18 20:20:58,847 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (59 of 82 remaining) [2022-04-18 20:20:58,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (58 of 82 remaining) [2022-04-18 20:20:58,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (57 of 82 remaining) [2022-04-18 20:20:58,848 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (56 of 82 remaining) [2022-04-18 20:20:58,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (55 of 82 remaining) [2022-04-18 20:20:58,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (54 of 82 remaining) [2022-04-18 20:20:58,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (53 of 82 remaining) [2022-04-18 20:20:58,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (52 of 82 remaining) [2022-04-18 20:20:58,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (51 of 82 remaining) [2022-04-18 20:20:58,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 82 remaining) [2022-04-18 20:20:58,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 82 remaining) [2022-04-18 20:20:58,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 82 remaining) [2022-04-18 20:20:58,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 82 remaining) [2022-04-18 20:20:58,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 82 remaining) [2022-04-18 20:20:58,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 82 remaining) [2022-04-18 20:20:58,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (44 of 82 remaining) [2022-04-18 20:20:58,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (43 of 82 remaining) [2022-04-18 20:20:58,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 82 remaining) [2022-04-18 20:20:58,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (41 of 82 remaining) [2022-04-18 20:20:58,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (40 of 82 remaining) [2022-04-18 20:20:58,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (39 of 82 remaining) [2022-04-18 20:20:58,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (38 of 82 remaining) [2022-04-18 20:20:58,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (37 of 82 remaining) [2022-04-18 20:20:58,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (36 of 82 remaining) [2022-04-18 20:20:58,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 82 remaining) [2022-04-18 20:20:58,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (34 of 82 remaining) [2022-04-18 20:20:58,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 82 remaining) [2022-04-18 20:20:58,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 82 remaining) [2022-04-18 20:20:58,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 82 remaining) [2022-04-18 20:20:58,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (30 of 82 remaining) [2022-04-18 20:20:58,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (29 of 82 remaining) [2022-04-18 20:20:58,854 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (28 of 82 remaining) [2022-04-18 20:20:58,854 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (27 of 82 remaining) [2022-04-18 20:20:58,854 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 82 remaining) [2022-04-18 20:20:58,854 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 82 remaining) [2022-04-18 20:20:58,854 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 82 remaining) [2022-04-18 20:20:58,855 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 82 remaining) [2022-04-18 20:20:58,855 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 82 remaining) [2022-04-18 20:20:58,855 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (21 of 82 remaining) [2022-04-18 20:20:58,855 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 82 remaining) [2022-04-18 20:20:58,855 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 82 remaining) [2022-04-18 20:20:58,856 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 82 remaining) [2022-04-18 20:20:58,856 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 82 remaining) [2022-04-18 20:20:58,856 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (16 of 82 remaining) [2022-04-18 20:20:58,856 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (15 of 82 remaining) [2022-04-18 20:20:58,856 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (14 of 82 remaining) [2022-04-18 20:20:58,856 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (13 of 82 remaining) [2022-04-18 20:20:58,857 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (12 of 82 remaining) [2022-04-18 20:20:58,857 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (11 of 82 remaining) [2022-04-18 20:20:58,857 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (10 of 82 remaining) [2022-04-18 20:20:58,857 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (9 of 82 remaining) [2022-04-18 20:20:58,857 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (8 of 82 remaining) [2022-04-18 20:20:58,858 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (7 of 82 remaining) [2022-04-18 20:20:58,858 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (6 of 82 remaining) [2022-04-18 20:20:58,858 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (5 of 82 remaining) [2022-04-18 20:20:58,858 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (4 of 82 remaining) [2022-04-18 20:20:58,858 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (3 of 82 remaining) [2022-04-18 20:20:58,858 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (2 of 82 remaining) [2022-04-18 20:20:58,859 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (1 of 82 remaining) [2022-04-18 20:20:58,859 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (0 of 82 remaining) [2022-04-18 20:20:58,859 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 20:20:58,861 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 20:20:58,867 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 20:20:58,867 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 20:20:58,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:20:58 BasicIcfg [2022-04-18 20:20:58,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 20:20:58,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 20:20:58,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 20:20:58,872 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 20:20:58,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:20:02" (3/4) ... [2022-04-18 20:20:58,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 20:20:58,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 20:20:58,879 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 20:20:58,880 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 20:20:58,887 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-04-18 20:20:58,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 20:20:58,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 20:20:58,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 20:20:58,933 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 20:20:58,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 20:20:58,934 INFO L158 Benchmark]: Toolchain (without parser) took 57641.23ms. Allocated memory was 88.1MB in the beginning and 14.4GB in the end (delta: 14.3GB). Free memory was 50.1MB in the beginning and 10.9GB in the end (delta: -10.8GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2022-04-18 20:20:58,934 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 66.5MB in the beginning and 66.5MB in the end (delta: 64.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 20:20:58,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.93ms. Allocated memory is still 88.1MB. Free memory was 49.8MB in the beginning and 61.8MB in the end (delta: -12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 20:20:58,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.88ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 57.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 20:20:58,935 INFO L158 Benchmark]: Boogie Preprocessor took 79.84ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 54.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 20:20:58,936 INFO L158 Benchmark]: RCFGBuilder took 1129.49ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 54.3MB in the beginning and 45.8MB in the end (delta: 8.5MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2022-04-18 20:20:58,936 INFO L158 Benchmark]: TraceAbstraction took 55983.14ms. Allocated memory was 107.0MB in the beginning and 14.4GB in the end (delta: 14.3GB). Free memory was 45.3MB in the beginning and 10.9GB in the end (delta: -10.9GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2022-04-18 20:20:58,936 INFO L158 Benchmark]: Witness Printer took 61.96ms. Allocated memory is still 14.4GB. Free memory was 10.9GB in the beginning and 10.9GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-04-18 20:20:58,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory was 66.5MB in the beginning and 66.5MB in the end (delta: 64.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.93ms. Allocated memory is still 88.1MB. Free memory was 49.8MB in the beginning and 61.8MB in the end (delta: -12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.88ms. Allocated memory is still 88.1MB. Free memory was 61.6MB in the beginning and 57.7MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.84ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 54.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1129.49ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 54.3MB in the beginning and 45.8MB in the end (delta: 8.5MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * TraceAbstraction took 55983.14ms. Allocated memory was 107.0MB in the beginning and 14.4GB in the end (delta: 14.3GB). Free memory was 45.3MB in the beginning and 10.9GB in the end (delta: -10.9GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. * Witness Printer took 61.96ms. Allocated memory is still 14.4GB. Free memory was 10.9GB in the beginning and 10.9GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.7s, 412 PlacesBefore, 138 PlacesAfterwards, 428 TransitionsBefore, 143 TransitionsAfterwards, 29394 CoEnabledTransitionPairs, 12 FixpointIterations, 235 TrivialSequentialCompositions, 244 ConcurrentSequentialCompositions, 33 TrivialYvCompositions, 24 ConcurrentYvCompositions, 11 ChoiceCompositions, 547 TotalNumberOfCompositions, 177544 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51290, positive: 49499, positive conditional: 0, positive unconditional: 49499, negative: 1791, negative conditional: 0, negative unconditional: 1791, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 24916, positive: 24663, positive conditional: 0, positive unconditional: 24663, negative: 253, negative conditional: 0, negative unconditional: 253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 24916, positive: 20496, positive conditional: 0, positive unconditional: 20496, negative: 4420, negative conditional: 0, negative unconditional: 4420, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4420, positive: 4167, positive conditional: 0, positive unconditional: 4167, negative: 253, negative conditional: 0, negative unconditional: 253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3691, positive: 3163, positive conditional: 0, positive unconditional: 3163, negative: 529, negative conditional: 0, negative unconditional: 529, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51290, positive: 24836, positive conditional: 0, positive unconditional: 24836, negative: 1538, negative conditional: 0, negative unconditional: 1538, unknown: 24916, unknown conditional: 0, unknown unconditional: 24916] , Statistics on independence cache: Total cache size (in pairs): 2733, Positive cache size: 2615, Positive conditional cache size: 0, Positive unconditional cache size: 2615, Negative cache size: 118, Negative conditional cache size: 0, Negative unconditional cache size: 118 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 118]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 571 locations, 82 error locations. Started 1 CEGAR loops. OverallTime: 55.8s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 22.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 878 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 878 mSDsluCounter, 1349 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1677 mSDsCounter, 538 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3308 IncrementalHoareTripleChecker+Invalid, 3846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 538 mSolverCounterUnsat, 536 mSDtfsCounter, 3308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 66 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160991occurred in iteration=0, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 2352 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 776 SizeOfPredicates, 9 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 13/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 48 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 20:20:58,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE