./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 19:10:05,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:10:05,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:10:05,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:10:05,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:10:05,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:10:05,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:10:05,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:10:05,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:10:05,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:10:05,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:10:05,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:10:05,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:10:05,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:10:05,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:10:05,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:10:05,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:10:05,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:10:05,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:10:05,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:10:05,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:10:05,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:10:05,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:10:05,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:10:05,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:10:05,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:10:05,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:10:05,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:10:05,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:10:05,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:10:05,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:10:05,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:10:05,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:10:05,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:10:05,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:10:05,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:10:05,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:10:05,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:10:05,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:10:05,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:10:05,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:10:05,395 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:10:05,429 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:10:05,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:10:05,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:10:05,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:10:05,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:10:05,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:10:05,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:10:05,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:10:05,433 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:10:05,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:10:05,433 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:10:05,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:10:05,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:10:05,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:10:05,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:10:05,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:10:05,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:10:05,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:10:05,435 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:10:05,435 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:10:05,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:10:05,435 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:10:05,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:10:05,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:10:05,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:10:05,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:10:05,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:10:05,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:10:05,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:10:05,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:10:05,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:10:05,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:10:05,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:10:05,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:10:05,438 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:10:05,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:10:05,439 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:10:05,439 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1890d03ecee4b13e5a6c0f8c72292cb7ef9118f93d1435df375cec86140a0197 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:10:05,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:10:05,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:10:05,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:10:05,736 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:10:05,736 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:10:05,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2023-08-29 19:10:06,790 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:10:06,969 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:10:06,970 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2023-08-29 19:10:06,984 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d85c84f89/2c19eca7840647b29fdb7ccc85b77092/FLAG86168eccc [2023-08-29 19:10:07,000 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d85c84f89/2c19eca7840647b29fdb7ccc85b77092 [2023-08-29 19:10:07,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:10:07,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:10:07,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:10:07,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:10:07,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:10:07,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a6febc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07, skipping insertion in model container [2023-08-29 19:10:07,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:10:07,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:10:07,249 WARN L247 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] [2023-08-29 19:10:07,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:10:07,281 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:10:07,324 WARN L247 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] [2023-08-29 19:10:07,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:10:07,347 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:10:07,348 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:10:07,354 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:10:07,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07 WrapperNode [2023-08-29 19:10:07,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:10:07,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:10:07,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:10:07,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:10:07,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,436 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 442 [2023-08-29 19:10:07,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:10:07,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:10:07,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:10:07,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:10:07,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:10:07,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:10:07,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:10:07,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:10:07,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (1/1) ... [2023-08-29 19:10:07,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:10:07,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:10:07,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 19:10:07,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 19:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:10:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:10:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:10:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:10:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:10:07,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:10:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:10:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:10:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 19:10:07,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 19:10:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:10:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 19:10:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 19:10:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 19:10:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:10:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:10:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:10:07,611 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 19:10:07,778 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:10:07,780 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:10:08,501 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:10:08,637 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:10:08,637 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-29 19:10:08,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:10:08 BoogieIcfgContainer [2023-08-29 19:10:08,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:10:08,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:10:08,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:10:08,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:10:08,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:10:07" (1/3) ... [2023-08-29 19:10:08,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c301e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:10:08, skipping insertion in model container [2023-08-29 19:10:08,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:10:07" (2/3) ... [2023-08-29 19:10:08,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c301e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:10:08, skipping insertion in model container [2023-08-29 19:10:08,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:10:08" (3/3) ... [2023-08-29 19:10:08,646 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2023-08-29 19:10:08,653 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:10:08,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:10:08,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-08-29 19:10:08,668 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:10:08,770 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 19:10:08,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 409 transitions, 842 flow [2023-08-29 19:10:08,965 INFO L130 PetriNetUnfolder]: 26/406 cut-off events. [2023-08-29 19:10:08,966 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:10:08,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 406 events. 26/406 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 786 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 299. Up to 2 conditions per place. [2023-08-29 19:10:08,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 409 transitions, 842 flow [2023-08-29 19:10:08,988 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 389 transitions, 796 flow [2023-08-29 19:10:08,991 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:10:09,002 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 389 transitions, 796 flow [2023-08-29 19:10:09,008 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 389 transitions, 796 flow [2023-08-29 19:10:09,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 389 transitions, 796 flow [2023-08-29 19:10:09,086 INFO L130 PetriNetUnfolder]: 25/389 cut-off events. [2023-08-29 19:10:09,087 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 19:10:09,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 389 events. 25/389 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 785 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 299. Up to 2 conditions per place. [2023-08-29 19:10:09,104 INFO L119 LiptonReduction]: Number of co-enabled transitions 27714 [2023-08-29 19:10:18,595 INFO L134 LiptonReduction]: Checked pairs total: 197985 [2023-08-29 19:10:18,596 INFO L136 LiptonReduction]: Total number of compositions: 345 [2023-08-29 19:10:18,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:10:18,613 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@51244dd4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 19:10:18,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2023-08-29 19:10:18,614 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:10:18,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:10:18,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:18,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:10:18,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:18,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:18,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1728, now seen corresponding path program 1 times [2023-08-29 19:10:18,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:18,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770082378] [2023-08-29 19:10:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:18,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:18,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:18,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:18,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770082378] [2023-08-29 19:10:18,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770082378] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:18,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:18,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:10:18,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742658706] [2023-08-29 19:10:18,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:18,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:10:18,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:18,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:10:18,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:10:18,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 754 [2023-08-29 19:10:18,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 155 transitions, 328 flow. Second operand has 2 states, 2 states have (on average 370.5) internal successors, (741), 2 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:18,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:18,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 754 [2023-08-29 19:10:18,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:19,529 INFO L130 PetriNetUnfolder]: 2339/5773 cut-off events. [2023-08-29 19:10:19,529 INFO L131 PetriNetUnfolder]: For 178/178 co-relation queries the response was YES. [2023-08-29 19:10:19,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9029 conditions, 5773 events. 2339/5773 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 51100 event pairs, 1473 based on Foata normal form. 1187/5702 useless extension candidates. Maximal degree in co-relation 7939. Up to 3109 conditions per place. [2023-08-29 19:10:19,575 INFO L137 encePairwiseOnDemand]: 720/754 looper letters, 36 selfloop transitions, 0 changer transitions 1/121 dead transitions. [2023-08-29 19:10:19,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 121 transitions, 334 flow [2023-08-29 19:10:19,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:10:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:10:19,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 811 transitions. [2023-08-29 19:10:19,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5377984084880637 [2023-08-29 19:10:19,589 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 811 transitions. [2023-08-29 19:10:19,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 811 transitions. [2023-08-29 19:10:19,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:19,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 811 transitions. [2023-08-29 19:10:19,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 405.5) internal successors, (811), 2 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:19,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:19,606 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:19,608 INFO L175 Difference]: Start difference. First operand has 149 places, 155 transitions, 328 flow. Second operand 2 states and 811 transitions. [2023-08-29 19:10:19,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 121 transitions, 334 flow [2023-08-29 19:10:19,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 121 transitions, 322 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 19:10:19,617 INFO L231 Difference]: Finished difference. Result has 118 places, 120 transitions, 245 flow [2023-08-29 19:10:19,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=245, PETRI_PLACES=118, PETRI_TRANSITIONS=120} [2023-08-29 19:10:19,622 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -31 predicate places. [2023-08-29 19:10:19,622 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 120 transitions, 245 flow [2023-08-29 19:10:19,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 370.5) internal successors, (741), 2 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:19,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:19,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:19,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 19:10:19,624 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:19,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:19,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1379137783, now seen corresponding path program 1 times [2023-08-29 19:10:19,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:19,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241097136] [2023-08-29 19:10:19,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:19,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:19,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:19,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241097136] [2023-08-29 19:10:19,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241097136] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:19,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:19,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:10:19,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755452802] [2023-08-29 19:10:19,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:19,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:10:19,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:19,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:10:19,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:10:19,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 754 [2023-08-29 19:10:19,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 120 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:19,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:19,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 754 [2023-08-29 19:10:19,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:20,615 INFO L130 PetriNetUnfolder]: 3499/7802 cut-off events. [2023-08-29 19:10:20,615 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-08-29 19:10:20,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12573 conditions, 7802 events. 3499/7802 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 68095 event pairs, 2423 based on Foata normal form. 0/6202 useless extension candidates. Maximal degree in co-relation 12570. Up to 4711 conditions per place. [2023-08-29 19:10:20,671 INFO L137 encePairwiseOnDemand]: 751/754 looper letters, 39 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2023-08-29 19:10:20,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 118 transitions, 321 flow [2023-08-29 19:10:20,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:10:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:10:20,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2023-08-29 19:10:20,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4920424403183024 [2023-08-29 19:10:20,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2023-08-29 19:10:20,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2023-08-29 19:10:20,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:20,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2023-08-29 19:10:20,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:20,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:20,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:20,712 INFO L175 Difference]: Start difference. First operand has 118 places, 120 transitions, 245 flow. Second operand 3 states and 1113 transitions. [2023-08-29 19:10:20,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 118 transitions, 321 flow [2023-08-29 19:10:20,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 118 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:10:20,715 INFO L231 Difference]: Finished difference. Result has 117 places, 118 transitions, 243 flow [2023-08-29 19:10:20,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=117, PETRI_TRANSITIONS=118} [2023-08-29 19:10:20,716 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -32 predicate places. [2023-08-29 19:10:20,716 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 118 transitions, 243 flow [2023-08-29 19:10:20,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:20,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:20,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:20,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 19:10:20,718 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:20,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2088936086, now seen corresponding path program 1 times [2023-08-29 19:10:20,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:20,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499079966] [2023-08-29 19:10:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:20,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:20,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499079966] [2023-08-29 19:10:20,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499079966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:20,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:20,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:10:20,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160414002] [2023-08-29 19:10:20,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:20,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:10:20,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:20,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:10:20,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:10:20,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 754 [2023-08-29 19:10:20,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 118 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:20,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:20,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 754 [2023-08-29 19:10:20,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:21,562 INFO L130 PetriNetUnfolder]: 3233/7551 cut-off events. [2023-08-29 19:10:21,562 INFO L131 PetriNetUnfolder]: For 81/81 co-relation queries the response was YES. [2023-08-29 19:10:21,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11974 conditions, 7551 events. 3233/7551 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 67569 event pairs, 2245 based on Foata normal form. 0/6241 useless extension candidates. Maximal degree in co-relation 11970. Up to 4359 conditions per place. [2023-08-29 19:10:21,605 INFO L137 encePairwiseOnDemand]: 751/754 looper letters, 38 selfloop transitions, 1 changer transitions 0/116 dead transitions. [2023-08-29 19:10:21,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 317 flow [2023-08-29 19:10:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:10:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:10:21,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1112 transitions. [2023-08-29 19:10:21,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4916003536693192 [2023-08-29 19:10:21,609 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1112 transitions. [2023-08-29 19:10:21,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1112 transitions. [2023-08-29 19:10:21,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:21,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1112 transitions. [2023-08-29 19:10:21,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:21,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:21,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:21,619 INFO L175 Difference]: Start difference. First operand has 117 places, 118 transitions, 243 flow. Second operand 3 states and 1112 transitions. [2023-08-29 19:10:21,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 317 flow [2023-08-29 19:10:21,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 116 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:10:21,622 INFO L231 Difference]: Finished difference. Result has 116 places, 116 transitions, 240 flow [2023-08-29 19:10:21,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=116, PETRI_TRANSITIONS=116} [2023-08-29 19:10:21,623 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -33 predicate places. [2023-08-29 19:10:21,623 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 116 transitions, 240 flow [2023-08-29 19:10:21,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:21,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:21,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:21,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 19:10:21,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:21,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:21,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1793531520, now seen corresponding path program 1 times [2023-08-29 19:10:21,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:21,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492300870] [2023-08-29 19:10:21,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:21,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:21,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:21,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492300870] [2023-08-29 19:10:21,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492300870] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:21,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:21,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:10:21,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253555531] [2023-08-29 19:10:21,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:21,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:10:21,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:21,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:10:21,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:10:21,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 754 [2023-08-29 19:10:21,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 116 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:21,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:21,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 754 [2023-08-29 19:10:21,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:22,792 INFO L130 PetriNetUnfolder]: 6401/12542 cut-off events. [2023-08-29 19:10:22,792 INFO L131 PetriNetUnfolder]: For 117/117 co-relation queries the response was YES. [2023-08-29 19:10:22,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21277 conditions, 12542 events. 6401/12542 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 103970 event pairs, 2329 based on Foata normal form. 0/11397 useless extension candidates. Maximal degree in co-relation 21273. Up to 8518 conditions per place. [2023-08-29 19:10:22,864 INFO L137 encePairwiseOnDemand]: 745/754 looper letters, 58 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2023-08-29 19:10:22,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 126 transitions, 386 flow [2023-08-29 19:10:22,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:10:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:10:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1120 transitions. [2023-08-29 19:10:22,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951370468611848 [2023-08-29 19:10:22,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1120 transitions. [2023-08-29 19:10:22,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1120 transitions. [2023-08-29 19:10:22,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:22,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1120 transitions. [2023-08-29 19:10:22,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:22,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:22,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:22,881 INFO L175 Difference]: Start difference. First operand has 116 places, 116 transitions, 240 flow. Second operand 3 states and 1120 transitions. [2023-08-29 19:10:22,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 126 transitions, 386 flow [2023-08-29 19:10:22,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 126 transitions, 385 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:10:22,884 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 248 flow [2023-08-29 19:10:22,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2023-08-29 19:10:22,886 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -37 predicate places. [2023-08-29 19:10:22,886 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 248 flow [2023-08-29 19:10:22,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:22,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:22,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:22,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 19:10:22,888 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:22,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:22,889 INFO L85 PathProgramCache]: Analyzing trace with hash 870082046, now seen corresponding path program 1 times [2023-08-29 19:10:22,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:22,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925815727] [2023-08-29 19:10:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:22,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:23,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:23,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925815727] [2023-08-29 19:10:23,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925815727] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:23,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:23,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 19:10:23,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654200010] [2023-08-29 19:10:23,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:23,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 19:10:23,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:23,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 19:10:23,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 19:10:23,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 754 [2023-08-29 19:10:23,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 113 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 362.25) internal successors, (1449), 4 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:23,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:23,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 754 [2023-08-29 19:10:23,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:23,868 INFO L130 PetriNetUnfolder]: 2435/5863 cut-off events. [2023-08-29 19:10:23,868 INFO L131 PetriNetUnfolder]: For 631/631 co-relation queries the response was YES. [2023-08-29 19:10:23,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9818 conditions, 5863 events. 2435/5863 cut-off events. For 631/631 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 51693 event pairs, 1411 based on Foata normal form. 0/4704 useless extension candidates. Maximal degree in co-relation 9814. Up to 3253 conditions per place. [2023-08-29 19:10:23,919 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 38 selfloop transitions, 2 changer transitions 3/117 dead transitions. [2023-08-29 19:10:23,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 117 transitions, 342 flow [2023-08-29 19:10:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 19:10:23,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 19:10:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1842 transitions. [2023-08-29 19:10:23,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48859416445623344 [2023-08-29 19:10:23,925 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1842 transitions. [2023-08-29 19:10:23,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1842 transitions. [2023-08-29 19:10:23,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:23,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1842 transitions. [2023-08-29 19:10:23,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 368.4) internal successors, (1842), 5 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:23,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 754.0) internal successors, (4524), 6 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:23,940 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 754.0) internal successors, (4524), 6 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:23,940 INFO L175 Difference]: Start difference. First operand has 112 places, 113 transitions, 248 flow. Second operand 5 states and 1842 transitions. [2023-08-29 19:10:23,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 117 transitions, 342 flow [2023-08-29 19:10:23,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:10:23,943 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 266 flow [2023-08-29 19:10:23,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=266, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2023-08-29 19:10:23,944 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -30 predicate places. [2023-08-29 19:10:23,944 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 266 flow [2023-08-29 19:10:23,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 362.25) internal successors, (1449), 4 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:23,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:23,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:23,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 19:10:23,946 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:23,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:23,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1267659844, now seen corresponding path program 1 times [2023-08-29 19:10:23,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:23,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920651908] [2023-08-29 19:10:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:23,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:24,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:10:24,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:24,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920651908] [2023-08-29 19:10:24,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920651908] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:24,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:24,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:10:24,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64297892] [2023-08-29 19:10:24,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:24,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:10:24,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:24,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:10:24,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:10:24,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 754 [2023-08-29 19:10:24,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 355.3333333333333) internal successors, (2132), 6 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:24,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:24,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 754 [2023-08-29 19:10:24,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:25,911 INFO L130 PetriNetUnfolder]: 6926/10837 cut-off events. [2023-08-29 19:10:25,912 INFO L131 PetriNetUnfolder]: For 1530/1530 co-relation queries the response was YES. [2023-08-29 19:10:25,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21521 conditions, 10837 events. 6926/10837 cut-off events. For 1530/1530 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 74670 event pairs, 786 based on Foata normal form. 0/9587 useless extension candidates. Maximal degree in co-relation 21513. Up to 3258 conditions per place. [2023-08-29 19:10:25,968 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 136 selfloop transitions, 4 changer transitions 0/209 dead transitions. [2023-08-29 19:10:25,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 209 transitions, 796 flow [2023-08-29 19:10:25,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:10:25,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:10:25,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2243 transitions. [2023-08-29 19:10:25,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4958001768346596 [2023-08-29 19:10:25,974 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2243 transitions. [2023-08-29 19:10:25,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2243 transitions. [2023-08-29 19:10:25,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:25,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2243 transitions. [2023-08-29 19:10:25,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 373.8333333333333) internal successors, (2243), 6 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:25,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:25,989 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:25,989 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 266 flow. Second operand 6 states and 2243 transitions. [2023-08-29 19:10:25,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 209 transitions, 796 flow [2023-08-29 19:10:25,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 209 transitions, 786 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-29 19:10:25,998 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 262 flow [2023-08-29 19:10:25,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2023-08-29 19:10:26,000 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -31 predicate places. [2023-08-29 19:10:26,001 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 262 flow [2023-08-29 19:10:26,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 355.3333333333333) internal successors, (2132), 6 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:26,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:26,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:26,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 19:10:26,002 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:26,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:26,004 INFO L85 PathProgramCache]: Analyzing trace with hash -186413662, now seen corresponding path program 1 times [2023-08-29 19:10:26,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:26,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231709299] [2023-08-29 19:10:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:26,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:26,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:10:26,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:26,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231709299] [2023-08-29 19:10:26,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231709299] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:26,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:26,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:10:26,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670963278] [2023-08-29 19:10:26,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:26,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:10:26,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:26,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:10:26,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:10:26,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 754 [2023-08-29 19:10:26,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 348.0) internal successors, (2088), 6 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:26,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:26,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 754 [2023-08-29 19:10:26,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:27,511 INFO L130 PetriNetUnfolder]: 5203/9284 cut-off events. [2023-08-29 19:10:27,511 INFO L131 PetriNetUnfolder]: For 1692/1692 co-relation queries the response was YES. [2023-08-29 19:10:27,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18804 conditions, 9284 events. 5203/9284 cut-off events. For 1692/1692 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 72340 event pairs, 961 based on Foata normal form. 0/8274 useless extension candidates. Maximal degree in co-relation 18798. Up to 3502 conditions per place. [2023-08-29 19:10:27,569 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 125 selfloop transitions, 5 changer transitions 0/191 dead transitions. [2023-08-29 19:10:27,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 191 transitions, 710 flow [2023-08-29 19:10:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:10:27,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:10:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2204 transitions. [2023-08-29 19:10:27,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2023-08-29 19:10:27,576 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2204 transitions. [2023-08-29 19:10:27,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2204 transitions. [2023-08-29 19:10:27,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:27,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2204 transitions. [2023-08-29 19:10:27,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:27,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:27,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:27,590 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 262 flow. Second operand 6 states and 2204 transitions. [2023-08-29 19:10:27,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 191 transitions, 710 flow [2023-08-29 19:10:27,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 191 transitions, 695 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:10:27,607 INFO L231 Difference]: Finished difference. Result has 117 places, 111 transitions, 261 flow [2023-08-29 19:10:27,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=117, PETRI_TRANSITIONS=111} [2023-08-29 19:10:27,608 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -32 predicate places. [2023-08-29 19:10:27,608 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 111 transitions, 261 flow [2023-08-29 19:10:27,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.0) internal successors, (2088), 6 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:27,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:27,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:27,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 19:10:27,609 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:27,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:27,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1217834929, now seen corresponding path program 1 times [2023-08-29 19:10:27,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:27,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147421068] [2023-08-29 19:10:27,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:27,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:27,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:27,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:27,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147421068] [2023-08-29 19:10:27,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147421068] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:10:27,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690697487] [2023-08-29 19:10:27,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:27,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:10:27,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:10:27,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:10:27,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 19:10:27,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:27,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 19:10:27,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:10:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:28,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:10:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:28,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690697487] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 19:10:28,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 19:10:28,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 19:10:28,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089121473] [2023-08-29 19:10:28,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 19:10:28,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 19:10:28,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:28,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 19:10:28,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-08-29 19:10:28,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 754 [2023-08-29 19:10:28,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 111 transitions, 261 flow. Second operand has 13 states, 13 states have (on average 351.46153846153845) internal successors, (4569), 13 states have internal predecessors, (4569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:28,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:28,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 754 [2023-08-29 19:10:28,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:29,466 INFO L130 PetriNetUnfolder]: 3429/7859 cut-off events. [2023-08-29 19:10:29,466 INFO L131 PetriNetUnfolder]: For 1055/1066 co-relation queries the response was YES. [2023-08-29 19:10:29,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13995 conditions, 7859 events. 3429/7859 cut-off events. For 1055/1066 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 71035 event pairs, 1592 based on Foata normal form. 153/7080 useless extension candidates. Maximal degree in co-relation 13989. Up to 2638 conditions per place. [2023-08-29 19:10:29,511 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 111 selfloop transitions, 7 changer transitions 0/188 dead transitions. [2023-08-29 19:10:29,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 188 transitions, 701 flow [2023-08-29 19:10:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 19:10:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 19:10:29,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2910 transitions. [2023-08-29 19:10:29,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4824270557029178 [2023-08-29 19:10:29,518 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2910 transitions. [2023-08-29 19:10:29,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2910 transitions. [2023-08-29 19:10:29,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:29,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2910 transitions. [2023-08-29 19:10:29,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 363.75) internal successors, (2910), 8 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:29,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 754.0) internal successors, (6786), 9 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:29,533 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 754.0) internal successors, (6786), 9 states have internal predecessors, (6786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:29,533 INFO L175 Difference]: Start difference. First operand has 117 places, 111 transitions, 261 flow. Second operand 8 states and 2910 transitions. [2023-08-29 19:10:29,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 188 transitions, 701 flow [2023-08-29 19:10:29,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 188 transitions, 685 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 19:10:29,537 INFO L231 Difference]: Finished difference. Result has 124 places, 116 transitions, 305 flow [2023-08-29 19:10:29,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=305, PETRI_PLACES=124, PETRI_TRANSITIONS=116} [2023-08-29 19:10:29,538 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2023-08-29 19:10:29,538 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 116 transitions, 305 flow [2023-08-29 19:10:29,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 351.46153846153845) internal successors, (4569), 13 states have internal predecessors, (4569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:29,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:29,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:29,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 19:10:29,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:10:29,746 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:29,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:29,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1245136804, now seen corresponding path program 1 times [2023-08-29 19:10:29,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:29,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844300978] [2023-08-29 19:10:29,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:29,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:10:29,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:29,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844300978] [2023-08-29 19:10:29,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844300978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:29,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:29,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:10:29,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702208685] [2023-08-29 19:10:29,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:29,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:10:29,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:29,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:10:29,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:10:29,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 754 [2023-08-29 19:10:29,836 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 116 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:29,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:29,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 754 [2023-08-29 19:10:29,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:30,695 INFO L130 PetriNetUnfolder]: 4299/9886 cut-off events. [2023-08-29 19:10:30,695 INFO L131 PetriNetUnfolder]: For 2472/2634 co-relation queries the response was YES. [2023-08-29 19:10:30,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18194 conditions, 9886 events. 4299/9886 cut-off events. For 2472/2634 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 91265 event pairs, 2752 based on Foata normal form. 162/9065 useless extension candidates. Maximal degree in co-relation 18184. Up to 5878 conditions per place. [2023-08-29 19:10:30,736 INFO L137 encePairwiseOnDemand]: 750/754 looper letters, 45 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2023-08-29 19:10:30,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 113 transitions, 393 flow [2023-08-29 19:10:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:10:30,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:10:30,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2023-08-29 19:10:30,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4920424403183024 [2023-08-29 19:10:30,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2023-08-29 19:10:30,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2023-08-29 19:10:30,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:30,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2023-08-29 19:10:30,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:30,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:30,746 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:30,746 INFO L175 Difference]: Start difference. First operand has 124 places, 116 transitions, 305 flow. Second operand 3 states and 1113 transitions. [2023-08-29 19:10:30,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 113 transitions, 393 flow [2023-08-29 19:10:30,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 113 transitions, 385 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 19:10:30,752 INFO L231 Difference]: Finished difference. Result has 122 places, 113 transitions, 295 flow [2023-08-29 19:10:30,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=122, PETRI_TRANSITIONS=113} [2023-08-29 19:10:30,753 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -27 predicate places. [2023-08-29 19:10:30,753 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 113 transitions, 295 flow [2023-08-29 19:10:30,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:30,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:30,754 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:30,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 19:10:30,754 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:30,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:30,755 INFO L85 PathProgramCache]: Analyzing trace with hash -665194317, now seen corresponding path program 2 times [2023-08-29 19:10:30,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:30,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925501367] [2023-08-29 19:10:30,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:30,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:10:31,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:31,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925501367] [2023-08-29 19:10:31,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925501367] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:31,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:31,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:10:31,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991990418] [2023-08-29 19:10:31,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:31,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:10:31,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:31,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:10:31,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:10:31,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 754 [2023-08-29 19:10:31,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 113 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:31,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:31,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 754 [2023-08-29 19:10:31,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:32,746 INFO L130 PetriNetUnfolder]: 6543/12141 cut-off events. [2023-08-29 19:10:32,746 INFO L131 PetriNetUnfolder]: For 2417/2417 co-relation queries the response was YES. [2023-08-29 19:10:32,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23880 conditions, 12141 events. 6543/12141 cut-off events. For 2417/2417 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 103590 event pairs, 1722 based on Foata normal form. 0/10827 useless extension candidates. Maximal degree in co-relation 23869. Up to 3884 conditions per place. [2023-08-29 19:10:32,830 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 130 selfloop transitions, 5 changer transitions 0/191 dead transitions. [2023-08-29 19:10:32,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 191 transitions, 745 flow [2023-08-29 19:10:32,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:10:32,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:10:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2204 transitions. [2023-08-29 19:10:32,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48717948717948717 [2023-08-29 19:10:32,836 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2204 transitions. [2023-08-29 19:10:32,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2204 transitions. [2023-08-29 19:10:32,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:32,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2204 transitions. [2023-08-29 19:10:32,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:32,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:32,847 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:32,847 INFO L175 Difference]: Start difference. First operand has 122 places, 113 transitions, 295 flow. Second operand 6 states and 2204 transitions. [2023-08-29 19:10:32,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 191 transitions, 745 flow [2023-08-29 19:10:32,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 191 transitions, 743 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:10:32,854 INFO L231 Difference]: Finished difference. Result has 124 places, 111 transitions, 299 flow [2023-08-29 19:10:32,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=124, PETRI_TRANSITIONS=111} [2023-08-29 19:10:32,855 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2023-08-29 19:10:32,855 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 111 transitions, 299 flow [2023-08-29 19:10:32,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:32,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:32,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:32,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 19:10:32,856 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:32,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:32,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1690781619, now seen corresponding path program 1 times [2023-08-29 19:10:32,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:32,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379195844] [2023-08-29 19:10:32,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:32,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 19:10:33,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:33,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379195844] [2023-08-29 19:10:33,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379195844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:33,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:33,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:10:33,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856566053] [2023-08-29 19:10:33,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:33,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:10:33,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:33,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:10:33,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:10:33,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 754 [2023-08-29 19:10:33,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 111 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 348.6666666666667) internal successors, (2092), 6 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:33,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:33,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 754 [2023-08-29 19:10:33,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:34,587 INFO L130 PetriNetUnfolder]: 5354/9195 cut-off events. [2023-08-29 19:10:34,588 INFO L131 PetriNetUnfolder]: For 3518/3737 co-relation queries the response was YES. [2023-08-29 19:10:34,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19918 conditions, 9195 events. 5354/9195 cut-off events. For 3518/3737 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 70724 event pairs, 1034 based on Foata normal form. 219/8501 useless extension candidates. Maximal degree in co-relation 19907. Up to 3620 conditions per place. [2023-08-29 19:10:34,647 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 118 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2023-08-29 19:10:34,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 181 transitions, 745 flow [2023-08-29 19:10:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:10:34,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:10:34,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2189 transitions. [2023-08-29 19:10:34,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4838638373121132 [2023-08-29 19:10:34,651 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2189 transitions. [2023-08-29 19:10:34,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2189 transitions. [2023-08-29 19:10:34,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:34,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2189 transitions. [2023-08-29 19:10:34,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 364.8333333333333) internal successors, (2189), 6 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:34,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:34,661 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:34,661 INFO L175 Difference]: Start difference. First operand has 124 places, 111 transitions, 299 flow. Second operand 6 states and 2189 transitions. [2023-08-29 19:10:34,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 181 transitions, 745 flow [2023-08-29 19:10:34,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 181 transitions, 727 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 19:10:34,667 INFO L231 Difference]: Finished difference. Result has 122 places, 109 transitions, 295 flow [2023-08-29 19:10:34,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=122, PETRI_TRANSITIONS=109} [2023-08-29 19:10:34,667 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -27 predicate places. [2023-08-29 19:10:34,668 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 109 transitions, 295 flow [2023-08-29 19:10:34,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.6666666666667) internal successors, (2092), 6 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:34,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:34,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:34,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 19:10:34,669 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:34,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:34,669 INFO L85 PathProgramCache]: Analyzing trace with hash 547174113, now seen corresponding path program 1 times [2023-08-29 19:10:34,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:34,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732288893] [2023-08-29 19:10:34,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:34,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:34,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:34,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732288893] [2023-08-29 19:10:34,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732288893] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 19:10:34,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255364192] [2023-08-29 19:10:34,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:34,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 19:10:34,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:10:34,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 19:10:34,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 19:10:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:34,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 19:10:34,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 19:10:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:34,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 19:10:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:10:34,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255364192] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-29 19:10:34,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-29 19:10:34,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-08-29 19:10:34,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377806661] [2023-08-29 19:10:34,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:34,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 19:10:34,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:34,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 19:10:34,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 19:10:35,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 754 [2023-08-29 19:10:35,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 109 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 354.8) internal successors, (1774), 5 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:35,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:35,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 754 [2023-08-29 19:10:35,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:35,807 INFO L130 PetriNetUnfolder]: 3283/7690 cut-off events. [2023-08-29 19:10:35,807 INFO L131 PetriNetUnfolder]: For 2289/2466 co-relation queries the response was YES. [2023-08-29 19:10:35,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14780 conditions, 7690 events. 3283/7690 cut-off events. For 2289/2466 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 66499 event pairs, 1274 based on Foata normal form. 306/7295 useless extension candidates. Maximal degree in co-relation 14769. Up to 2528 conditions per place. [2023-08-29 19:10:35,847 INFO L137 encePairwiseOnDemand]: 748/754 looper letters, 64 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2023-08-29 19:10:35,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 508 flow [2023-08-29 19:10:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 19:10:35,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 19:10:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1820 transitions. [2023-08-29 19:10:35,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4827586206896552 [2023-08-29 19:10:35,850 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1820 transitions. [2023-08-29 19:10:35,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1820 transitions. [2023-08-29 19:10:35,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:35,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1820 transitions. [2023-08-29 19:10:35,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 364.0) internal successors, (1820), 5 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:35,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 754.0) internal successors, (4524), 6 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:35,856 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 754.0) internal successors, (4524), 6 states have internal predecessors, (4524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:35,857 INFO L175 Difference]: Start difference. First operand has 122 places, 109 transitions, 295 flow. Second operand 5 states and 1820 transitions. [2023-08-29 19:10:35,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 508 flow [2023-08-29 19:10:35,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 133 transitions, 494 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 19:10:35,865 INFO L231 Difference]: Finished difference. Result has 123 places, 110 transitions, 310 flow [2023-08-29 19:10:35,866 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=310, PETRI_PLACES=123, PETRI_TRANSITIONS=110} [2023-08-29 19:10:35,866 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -26 predicate places. [2023-08-29 19:10:35,866 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 110 transitions, 310 flow [2023-08-29 19:10:35,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 354.8) internal successors, (1774), 5 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:35,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:35,867 INFO L208 CegarLoopForPetriNet]: 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] [2023-08-29 19:10:35,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 19:10:36,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-29 19:10:36,073 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:36,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:36,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1690057843, now seen corresponding path program 1 times [2023-08-29 19:10:36,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:36,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041979710] [2023-08-29 19:10:36,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:36,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:36,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:10:36,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:36,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041979710] [2023-08-29 19:10:36,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041979710] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:36,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:36,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:10:36,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910201616] [2023-08-29 19:10:36,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:36,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:10:36,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:36,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:10:36,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:10:36,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 754 [2023-08-29 19:10:36,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 110 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 356.3333333333333) internal successors, (2138), 6 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:36,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:36,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 754 [2023-08-29 19:10:36,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:37,447 INFO L130 PetriNetUnfolder]: 3418/7255 cut-off events. [2023-08-29 19:10:37,447 INFO L131 PetriNetUnfolder]: For 4236/4672 co-relation queries the response was YES. [2023-08-29 19:10:37,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15304 conditions, 7255 events. 3418/7255 cut-off events. For 4236/4672 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 62023 event pairs, 1670 based on Foata normal form. 436/6795 useless extension candidates. Maximal degree in co-relation 15291. Up to 3637 conditions per place. [2023-08-29 19:10:37,491 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 109 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2023-08-29 19:10:37,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 173 transitions, 706 flow [2023-08-29 19:10:37,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:10:37,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:10:37,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2219 transitions. [2023-08-29 19:10:37,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4904951370468612 [2023-08-29 19:10:37,495 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2219 transitions. [2023-08-29 19:10:37,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2219 transitions. [2023-08-29 19:10:37,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:37,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2219 transitions. [2023-08-29 19:10:37,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 369.8333333333333) internal successors, (2219), 6 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:37,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:37,505 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:37,505 INFO L175 Difference]: Start difference. First operand has 123 places, 110 transitions, 310 flow. Second operand 6 states and 2219 transitions. [2023-08-29 19:10:37,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 173 transitions, 706 flow [2023-08-29 19:10:37,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 173 transitions, 700 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 19:10:37,511 INFO L231 Difference]: Finished difference. Result has 124 places, 109 transitions, 310 flow [2023-08-29 19:10:37,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=310, PETRI_PLACES=124, PETRI_TRANSITIONS=109} [2023-08-29 19:10:37,511 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2023-08-29 19:10:37,512 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 109 transitions, 310 flow [2023-08-29 19:10:37,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.3333333333333) internal successors, (2138), 6 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:37,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:10:37,513 INFO L208 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1] [2023-08-29 19:10:37,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 19:10:37,513 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-08-29 19:10:37,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:10:37,514 INFO L85 PathProgramCache]: Analyzing trace with hash -555189283, now seen corresponding path program 1 times [2023-08-29 19:10:37,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:10:37,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660252590] [2023-08-29 19:10:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:10:37,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:10:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:10:37,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:10:37,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:10:37,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660252590] [2023-08-29 19:10:37,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660252590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:10:37,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:10:37,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:10:37,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574603703] [2023-08-29 19:10:37,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:10:37,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:10:37,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:10:37,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:10:37,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:10:38,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 754 [2023-08-29 19:10:38,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 109 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 356.8333333333333) internal successors, (2141), 6 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:38,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:10:38,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 754 [2023-08-29 19:10:38,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:10:38,886 INFO L130 PetriNetUnfolder]: 2914/6735 cut-off events. [2023-08-29 19:10:38,886 INFO L131 PetriNetUnfolder]: For 3582/3986 co-relation queries the response was YES. [2023-08-29 19:10:38,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13882 conditions, 6735 events. 2914/6735 cut-off events. For 3582/3986 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 59114 event pairs, 1788 based on Foata normal form. 404/6315 useless extension candidates. Maximal degree in co-relation 13869. Up to 3879 conditions per place. [2023-08-29 19:10:38,911 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2023-08-29 19:10:38,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 144 transitions, 558 flow [2023-08-29 19:10:38,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:10:38,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:10:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2195 transitions. [2023-08-29 19:10:38,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48519009725906276 [2023-08-29 19:10:38,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2195 transitions. [2023-08-29 19:10:38,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2195 transitions. [2023-08-29 19:10:38,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:10:38,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2195 transitions. [2023-08-29 19:10:38,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 365.8333333333333) internal successors, (2195), 6 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:38,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:38,926 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:38,926 INFO L175 Difference]: Start difference. First operand has 124 places, 109 transitions, 310 flow. Second operand 6 states and 2195 transitions. [2023-08-29 19:10:38,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 144 transitions, 558 flow [2023-08-29 19:10:38,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 144 transitions, 551 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:10:38,932 INFO L231 Difference]: Finished difference. Result has 124 places, 0 transitions, 0 flow [2023-08-29 19:10:38,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=124, PETRI_TRANSITIONS=0} [2023-08-29 19:10:38,933 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -25 predicate places. [2023-08-29 19:10:38,933 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 0 transitions, 0 flow [2023-08-29 19:10:38,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.8333333333333) internal successors, (2141), 6 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:10:38,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (81 of 82 remaining) [2023-08-29 19:10:38,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (80 of 82 remaining) [2023-08-29 19:10:38,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (79 of 82 remaining) [2023-08-29 19:10:38,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (78 of 82 remaining) [2023-08-29 19:10:38,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (77 of 82 remaining) [2023-08-29 19:10:38,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (76 of 82 remaining) [2023-08-29 19:10:38,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (75 of 82 remaining) [2023-08-29 19:10:38,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (74 of 82 remaining) [2023-08-29 19:10:38,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (73 of 82 remaining) [2023-08-29 19:10:38,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (72 of 82 remaining) [2023-08-29 19:10:38,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (71 of 82 remaining) [2023-08-29 19:10:38,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (70 of 82 remaining) [2023-08-29 19:10:38,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (69 of 82 remaining) [2023-08-29 19:10:38,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (68 of 82 remaining) [2023-08-29 19:10:38,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (67 of 82 remaining) [2023-08-29 19:10:38,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (66 of 82 remaining) [2023-08-29 19:10:38,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (65 of 82 remaining) [2023-08-29 19:10:38,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (64 of 82 remaining) [2023-08-29 19:10:38,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (63 of 82 remaining) [2023-08-29 19:10:38,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (62 of 82 remaining) [2023-08-29 19:10:38,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (61 of 82 remaining) [2023-08-29 19:10:38,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (60 of 82 remaining) [2023-08-29 19:10:38,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (59 of 82 remaining) [2023-08-29 19:10:38,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (58 of 82 remaining) [2023-08-29 19:10:38,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (57 of 82 remaining) [2023-08-29 19:10:38,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (56 of 82 remaining) [2023-08-29 19:10:38,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (55 of 82 remaining) [2023-08-29 19:10:38,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (54 of 82 remaining) [2023-08-29 19:10:38,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (53 of 82 remaining) [2023-08-29 19:10:38,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (52 of 82 remaining) [2023-08-29 19:10:38,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (51 of 82 remaining) [2023-08-29 19:10:38,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 82 remaining) [2023-08-29 19:10:38,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 82 remaining) [2023-08-29 19:10:38,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (48 of 82 remaining) [2023-08-29 19:10:38,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (47 of 82 remaining) [2023-08-29 19:10:38,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 82 remaining) [2023-08-29 19:10:38,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 82 remaining) [2023-08-29 19:10:38,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (44 of 82 remaining) [2023-08-29 19:10:38,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (43 of 82 remaining) [2023-08-29 19:10:38,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 82 remaining) [2023-08-29 19:10:38,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (41 of 82 remaining) [2023-08-29 19:10:38,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (40 of 82 remaining) [2023-08-29 19:10:38,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (39 of 82 remaining) [2023-08-29 19:10:38,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (38 of 82 remaining) [2023-08-29 19:10:38,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (37 of 82 remaining) [2023-08-29 19:10:38,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (36 of 82 remaining) [2023-08-29 19:10:38,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 82 remaining) [2023-08-29 19:10:38,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (34 of 82 remaining) [2023-08-29 19:10:38,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 82 remaining) [2023-08-29 19:10:38,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 82 remaining) [2023-08-29 19:10:38,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 82 remaining) [2023-08-29 19:10:38,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (30 of 82 remaining) [2023-08-29 19:10:38,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (29 of 82 remaining) [2023-08-29 19:10:38,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (28 of 82 remaining) [2023-08-29 19:10:38,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (27 of 82 remaining) [2023-08-29 19:10:38,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 82 remaining) [2023-08-29 19:10:38,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 82 remaining) [2023-08-29 19:10:38,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 82 remaining) [2023-08-29 19:10:38,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 82 remaining) [2023-08-29 19:10:38,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 82 remaining) [2023-08-29 19:10:38,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (21 of 82 remaining) [2023-08-29 19:10:38,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 82 remaining) [2023-08-29 19:10:38,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 82 remaining) [2023-08-29 19:10:38,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 82 remaining) [2023-08-29 19:10:38,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 82 remaining) [2023-08-29 19:10:38,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (16 of 82 remaining) [2023-08-29 19:10:38,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (15 of 82 remaining) [2023-08-29 19:10:38,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (14 of 82 remaining) [2023-08-29 19:10:38,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (13 of 82 remaining) [2023-08-29 19:10:38,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (12 of 82 remaining) [2023-08-29 19:10:38,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (11 of 82 remaining) [2023-08-29 19:10:38,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (10 of 82 remaining) [2023-08-29 19:10:38,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (9 of 82 remaining) [2023-08-29 19:10:38,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (8 of 82 remaining) [2023-08-29 19:10:38,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (7 of 82 remaining) [2023-08-29 19:10:38,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (6 of 82 remaining) [2023-08-29 19:10:38,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (5 of 82 remaining) [2023-08-29 19:10:38,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (4 of 82 remaining) [2023-08-29 19:10:38,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (3 of 82 remaining) [2023-08-29 19:10:38,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (2 of 82 remaining) [2023-08-29 19:10:38,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (1 of 82 remaining) [2023-08-29 19:10:38,948 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (0 of 82 remaining) [2023-08-29 19:10:38,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 19:10:38,949 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:10:38,954 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 19:10:38,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 19:10:38,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:10:38 BasicIcfg [2023-08-29 19:10:38,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 19:10:38,958 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 19:10:38,958 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 19:10:38,958 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 19:10:38,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:10:08" (3/4) ... [2023-08-29 19:10:38,961 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 19:10:38,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 19:10:38,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 19:10:38,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-29 19:10:38,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-08-29 19:10:38,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 19:10:38,970 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 19:10:38,971 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 19:10:39,007 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 19:10:39,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 19:10:39,008 INFO L158 Benchmark]: Toolchain (without parser) took 32005.39ms. Allocated memory was 79.7MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 60.0MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-08-29 19:10:39,009 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 40.4MB in the beginning and 40.3MB in the end (delta: 56.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 19:10:39,009 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.86ms. Allocated memory is still 79.7MB. Free memory was 60.0MB in the beginning and 46.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 19:10:39,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.71ms. Allocated memory is still 79.7MB. Free memory was 46.6MB in the beginning and 42.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 19:10:39,010 INFO L158 Benchmark]: Boogie Preprocessor took 88.12ms. Allocated memory is still 79.7MB. Free memory was 42.8MB in the beginning and 57.7MB in the end (delta: -14.9MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2023-08-29 19:10:39,010 INFO L158 Benchmark]: RCFGBuilder took 1113.84ms. Allocated memory is still 79.7MB. Free memory was 57.4MB in the beginning and 32.1MB in the end (delta: 25.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2023-08-29 19:10:39,010 INFO L158 Benchmark]: TraceAbstraction took 30316.29ms. Allocated memory was 79.7MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 31.3MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-08-29 19:10:39,010 INFO L158 Benchmark]: Witness Printer took 50.16ms. Allocated memory is still 3.2GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-29 19:10:39,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 40.4MB in the beginning and 40.3MB in the end (delta: 56.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.86ms. Allocated memory is still 79.7MB. Free memory was 60.0MB in the beginning and 46.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.71ms. Allocated memory is still 79.7MB. Free memory was 46.6MB in the beginning and 42.8MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.12ms. Allocated memory is still 79.7MB. Free memory was 42.8MB in the beginning and 57.7MB in the end (delta: -14.9MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * RCFGBuilder took 1113.84ms. Allocated memory is still 79.7MB. Free memory was 57.4MB in the beginning and 32.1MB in the end (delta: 25.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * TraceAbstraction took 30316.29ms. Allocated memory was 79.7MB in the beginning and 3.2GB in the end (delta: 3.1GB). Free memory was 31.3MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 50.16ms. Allocated memory is still 3.2GB. Free memory was 1.4GB in the beginning and 1.4GB 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: 9.6s, 374 PlacesBefore, 149 PlacesAfterwards, 389 TransitionsBefore, 155 TransitionsAfterwards, 27714 CoEnabledTransitionPairs, 8 FixpointIterations, 190 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 28 TrivialYvCompositions, 30 ConcurrentYvCompositions, 9 ChoiceCompositions, 345 TotalNumberOfCompositions, 197985 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37200, independent: 35273, independent conditional: 0, independent unconditional: 35273, dependent: 1927, dependent conditional: 0, dependent unconditional: 1927, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 13388, independent: 13168, independent conditional: 0, independent unconditional: 13168, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37200, independent: 22105, independent conditional: 0, independent unconditional: 22105, dependent: 1707, dependent conditional: 0, dependent unconditional: 1707, unknown: 13388, unknown conditional: 0, unknown unconditional: 13388] , Statistics on independence cache: Total cache size (in pairs): 2159, Positive cache size: 2033, Positive conditional cache size: 0, Positive unconditional cache size: 2033, Negative cache size: 126, Negative conditional cache size: 0, Negative unconditional cache size: 126, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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, 546 locations, 82 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 30.2s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3089 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2028 mSDsluCounter, 878 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 634 mSDsCounter, 1024 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6068 IncrementalHoareTripleChecker+Invalid, 7092 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1024 mSolverCounterUnsat, 244 mSDtfsCounter, 6068 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 81 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=0, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 303 NumberOfCodeBlocks, 303 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 1110 SizeOfPredicates, 9 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 14/19 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! [2023-08-29 19:10:39,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-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