./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/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 /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.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 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:32:04,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:32:04,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:32:04,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:32:04,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:32:04,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:32:04,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:32:04,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:32:04,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:32:04,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:32:04,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:32:04,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:32:04,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:32:04,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:32:04,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:32:04,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:32:04,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:32:04,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:32:04,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:32:04,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:32:04,399 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:32:04,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:32:04,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:32:04,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:32:04,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:32:04,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:32:04,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:32:04,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:32:04,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:32:04,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:32:04,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:32:04,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:32:04,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:32:04,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:32:04,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:32:04,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:32:04,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:32:04,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:32:04,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:32:04,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:32:04,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:32:04,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:32:04,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:32:04,444 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:32:04,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:32:04,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:32:04,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:32:04,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:32:04,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:32:04,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:32:04,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:32:04,446 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:32:04,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:32:04,447 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:32:04,447 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:32:04,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:32:04,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:32:04,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:32:04,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:32:04,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:32:04,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:32:04,448 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:32:04,449 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:32:04,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:32:04,450 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:32:04,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:32:04,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:32:04,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:32:04,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:32:04,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:04,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:32:04,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:32:04,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:32:04,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:32:04,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:32:04,452 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:32:04,452 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:32:04,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:32:04,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 [2022-04-18 16:32:04,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:32:04,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:32:04,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:32:04,665 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:32:04,667 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:32:04,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c [2022-04-18 16:32:04,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad1e97f8/ecd3639b2d454058a167a6c4ca3b3518/FLAG004fdd3d9 [2022-04-18 16:32:05,106 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:32:05,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c [2022-04-18 16:32:05,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad1e97f8/ecd3639b2d454058a167a6c4ca3b3518/FLAG004fdd3d9 [2022-04-18 16:32:05,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ad1e97f8/ecd3639b2d454058a167a6c4ca3b3518 [2022-04-18 16:32:05,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:32:05,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:32:05,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:05,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:32:05,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:32:05,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f20eceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05, skipping insertion in model container [2022-04-18 16:32:05,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:32:05,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:32:05,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c[2728,2741] [2022-04-18 16:32:05,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:05,329 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:32:05,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-array-int-trans.wvr.c[2728,2741] [2022-04-18 16:32:05,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:05,363 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:32:05,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05 WrapperNode [2022-04-18 16:32:05,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:05,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:05,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:32:05,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:32:05,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,430 INFO L137 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 13, calls inlined = 21, statements flattened = 504 [2022-04-18 16:32:05,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:05,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:32:05,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:32:05,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:32:05,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:32:05,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:32:05,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:32:05,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:32:05,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (1/1) ... [2022-04-18 16:32:05,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:05,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:05,512 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) [2022-04-18 16:32:05,535 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 [2022-04-18 16:32:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:32:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:32:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:32:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:32:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:32:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:32:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:32:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:32:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:32:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:32:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:32:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:32:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:32:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:32:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:32:05,546 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:32:05,674 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:32:05,676 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:32:06,276 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:32:06,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:32:06,290 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 16:32:06,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:06 BoogieIcfgContainer [2022-04-18 16:32:06,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:32:06,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:32:06,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:32:06,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:32:06,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:32:05" (1/3) ... [2022-04-18 16:32:06,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7418348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:06, skipping insertion in model container [2022-04-18 16:32:06,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:05" (2/3) ... [2022-04-18 16:32:06,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7418348e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:06, skipping insertion in model container [2022-04-18 16:32:06,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:06" (3/3) ... [2022-04-18 16:32:06,301 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2022-04-18 16:32:06,304 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:32:06,304 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:32:06,304 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2022-04-18 16:32:06,304 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:32:06,403 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:32:06,456 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:32:06,463 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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 [2022-04-18 16:32:06,464 INFO L341 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-04-18 16:32:06,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 618 places, 641 transitions, 1306 flow [2022-04-18 16:32:06,665 INFO L129 PetriNetUnfolder]: 33/638 cut-off events. [2022-04-18 16:32:06,665 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:32:06,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 638 events. 33/638 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1530 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 460. Up to 3 conditions per place. [2022-04-18 16:32:06,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 618 places, 641 transitions, 1306 flow [2022-04-18 16:32:06,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 593 places, 614 transitions, 1246 flow [2022-04-18 16:32:06,691 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2022-04-18 16:32:06,692 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:32:06,692 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:06,692 INFO L255 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, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:06,693 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-04-18 16:32:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:06,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1476022102, now seen corresponding path program 1 times [2022-04-18 16:32:06,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:06,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524434009] [2022-04-18 16:32:06,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:06,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:06,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:06,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524434009] [2022-04-18 16:32:06,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524434009] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:06,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:06,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:06,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928422848] [2022-04-18 16:32:06,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:06,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:06,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:06,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:06,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:06,899 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 641 [2022-04-18 16:32:06,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 614 transitions, 1246 flow. Second operand has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:06,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:06,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 641 [2022-04-18 16:32:06,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:07,303 INFO L129 PetriNetUnfolder]: 106/1875 cut-off events. [2022-04-18 16:32:07,303 INFO L130 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-04-18 16:32:07,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2071 conditions, 1875 events. 106/1875 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11765 event pairs, 60 based on Foata normal form. 89/1648 useless extension candidates. Maximal degree in co-relation 1532. Up to 145 conditions per place. [2022-04-18 16:32:07,341 INFO L132 encePairwiseOnDemand]: 620/641 looper letters, 24 selfloop transitions, 2 changer transitions 6/595 dead transitions. [2022-04-18 16:32:07,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 595 transitions, 1260 flow [2022-04-18 16:32:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1827 transitions. [2022-04-18 16:32:07,358 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9500780031201248 [2022-04-18 16:32:07,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1827 transitions. [2022-04-18 16:32:07,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1827 transitions. [2022-04-18 16:32:07,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:07,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1827 transitions. [2022-04-18 16:32:07,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:07,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:07,381 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:07,383 INFO L186 Difference]: Start difference. First operand has 593 places, 614 transitions, 1246 flow. Second operand 3 states and 1827 transitions. [2022-04-18 16:32:07,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 595 transitions, 1260 flow [2022-04-18 16:32:07,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 595 transitions, 1248 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:32:07,417 INFO L242 Difference]: Finished difference. Result has 588 places, 589 transitions, 1188 flow [2022-04-18 16:32:07,419 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1196, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1188, PETRI_PLACES=588, PETRI_TRANSITIONS=589} [2022-04-18 16:32:07,423 INFO L335 CegarLoopForPetriNet]: 593 programPoint places, -5 predicate places. [2022-04-18 16:32:07,423 INFO L478 AbstractCegarLoop]: Abstraction has has 588 places, 589 transitions, 1188 flow [2022-04-18 16:32:07,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:07,424 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:07,424 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:07,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:32:07,425 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-04-18 16:32:07,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:07,426 INFO L85 PathProgramCache]: Analyzing trace with hash 407879198, now seen corresponding path program 1 times [2022-04-18 16:32:07,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:07,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976989662] [2022-04-18 16:32:07,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:07,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:07,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:07,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:07,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976989662] [2022-04-18 16:32:07,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976989662] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:07,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:07,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:07,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009450034] [2022-04-18 16:32:07,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:07,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:07,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:07,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:07,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:07,505 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 641 [2022-04-18 16:32:07,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 589 transitions, 1188 flow. Second operand has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:07,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:07,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 641 [2022-04-18 16:32:07,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:08,105 INFO L129 PetriNetUnfolder]: 227/3225 cut-off events. [2022-04-18 16:32:08,105 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-04-18 16:32:08,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3562 conditions, 3225 events. 227/3225 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 26564 event pairs, 132 based on Foata normal form. 0/2680 useless extension candidates. Maximal degree in co-relation 3525. Up to 274 conditions per place. [2022-04-18 16:32:08,159 INFO L132 encePairwiseOnDemand]: 638/641 looper letters, 24 selfloop transitions, 2 changer transitions 0/588 dead transitions. [2022-04-18 16:32:08,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 588 transitions, 1238 flow [2022-04-18 16:32:08,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:08,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1809 transitions. [2022-04-18 16:32:08,164 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9407176287051482 [2022-04-18 16:32:08,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1809 transitions. [2022-04-18 16:32:08,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1809 transitions. [2022-04-18 16:32:08,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:08,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1809 transitions. [2022-04-18 16:32:08,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.0) internal successors, (1809), 3 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,172 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,172 INFO L186 Difference]: Start difference. First operand has 588 places, 589 transitions, 1188 flow. Second operand 3 states and 1809 transitions. [2022-04-18 16:32:08,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 588 transitions, 1238 flow [2022-04-18 16:32:08,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 588 transitions, 1234 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:08,181 INFO L242 Difference]: Finished difference. Result has 581 places, 588 transitions, 1186 flow [2022-04-18 16:32:08,181 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1186, PETRI_PLACES=581, PETRI_TRANSITIONS=588} [2022-04-18 16:32:08,182 INFO L335 CegarLoopForPetriNet]: 593 programPoint places, -12 predicate places. [2022-04-18 16:32:08,182 INFO L478 AbstractCegarLoop]: Abstraction has has 581 places, 588 transitions, 1186 flow [2022-04-18 16:32:08,183 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,183 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:08,184 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:08,184 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:32:08,184 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-04-18 16:32:08,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:08,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1566259234, now seen corresponding path program 1 times [2022-04-18 16:32:08,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:08,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24569686] [2022-04-18 16:32:08,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:08,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:08,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:08,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24569686] [2022-04-18 16:32:08,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24569686] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:08,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:08,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:08,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56569374] [2022-04-18 16:32:08,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:08,239 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:08,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:08,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:08,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:08,242 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 641 [2022-04-18 16:32:08,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 588 transitions, 1186 flow. Second operand has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:08,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 641 [2022-04-18 16:32:08,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:08,841 INFO L129 PetriNetUnfolder]: 227/3194 cut-off events. [2022-04-18 16:32:08,842 INFO L130 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-04-18 16:32:08,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3483 conditions, 3194 events. 227/3194 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 25783 event pairs, 132 based on Foata normal form. 0/2664 useless extension candidates. Maximal degree in co-relation 3439. Up to 274 conditions per place. [2022-04-18 16:32:08,901 INFO L132 encePairwiseOnDemand]: 638/641 looper letters, 24 selfloop transitions, 2 changer transitions 0/587 dead transitions. [2022-04-18 16:32:08,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 587 transitions, 1236 flow [2022-04-18 16:32:08,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:08,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:08,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1809 transitions. [2022-04-18 16:32:08,904 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9407176287051482 [2022-04-18 16:32:08,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1809 transitions. [2022-04-18 16:32:08,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1809 transitions. [2022-04-18 16:32:08,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:08,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1809 transitions. [2022-04-18 16:32:08,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 603.0) internal successors, (1809), 3 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,912 INFO L186 Difference]: Start difference. First operand has 581 places, 588 transitions, 1186 flow. Second operand 3 states and 1809 transitions. [2022-04-18 16:32:08,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 587 transitions, 1236 flow [2022-04-18 16:32:08,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 587 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:08,920 INFO L242 Difference]: Finished difference. Result has 580 places, 587 transitions, 1184 flow [2022-04-18 16:32:08,920 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1184, PETRI_PLACES=580, PETRI_TRANSITIONS=587} [2022-04-18 16:32:08,921 INFO L335 CegarLoopForPetriNet]: 593 programPoint places, -13 predicate places. [2022-04-18 16:32:08,921 INFO L478 AbstractCegarLoop]: Abstraction has has 580 places, 587 transitions, 1184 flow [2022-04-18 16:32:08,922 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,922 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:08,923 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:08,923 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:32:08,923 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-04-18 16:32:08,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:08,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1279621106, now seen corresponding path program 1 times [2022-04-18 16:32:08,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:08,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579409346] [2022-04-18 16:32:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:08,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:08,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:08,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579409346] [2022-04-18 16:32:08,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579409346] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:08,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:08,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:08,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816209921] [2022-04-18 16:32:08,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:08,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:08,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:08,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:08,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:08,952 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 641 [2022-04-18 16:32:08,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 587 transitions, 1184 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:08,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:08,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 641 [2022-04-18 16:32:08,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:09,256 INFO L129 PetriNetUnfolder]: 72/1598 cut-off events. [2022-04-18 16:32:09,256 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-04-18 16:32:09,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 1598 events. 72/1598 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9222 event pairs, 32 based on Foata normal form. 0/1366 useless extension candidates. Maximal degree in co-relation 1644. Up to 80 conditions per place. [2022-04-18 16:32:09,282 INFO L132 encePairwiseOnDemand]: 635/641 looper letters, 17 selfloop transitions, 1 changer transitions 0/582 dead transitions. [2022-04-18 16:32:09,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 582 transitions, 1210 flow [2022-04-18 16:32:09,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-04-18 16:32:09,285 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9433177327093084 [2022-04-18 16:32:09,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-04-18 16:32:09,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-04-18 16:32:09,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:09,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-04-18 16:32:09,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,295 INFO L186 Difference]: Start difference. First operand has 580 places, 587 transitions, 1184 flow. Second operand 3 states and 1814 transitions. [2022-04-18 16:32:09,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 582 transitions, 1210 flow [2022-04-18 16:32:09,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 582 transitions, 1206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:09,303 INFO L242 Difference]: Finished difference. Result has 575 places, 582 transitions, 1172 flow [2022-04-18 16:32:09,304 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1172, PETRI_PLACES=575, PETRI_TRANSITIONS=582} [2022-04-18 16:32:09,305 INFO L335 CegarLoopForPetriNet]: 593 programPoint places, -18 predicate places. [2022-04-18 16:32:09,305 INFO L478 AbstractCegarLoop]: Abstraction has has 575 places, 582 transitions, 1172 flow [2022-04-18 16:32:09,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,306 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:09,306 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:09,306 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:32:09,307 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-04-18 16:32:09,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2064625485, now seen corresponding path program 1 times [2022-04-18 16:32:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:09,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744108767] [2022-04-18 16:32:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:09,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:09,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:09,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744108767] [2022-04-18 16:32:09,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744108767] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:09,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:09,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:09,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287353847] [2022-04-18 16:32:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:09,380 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:09,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:09,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:09,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:09,383 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 641 [2022-04-18 16:32:09,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 582 transitions, 1172 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:09,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 641 [2022-04-18 16:32:09,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:09,845 INFO L129 PetriNetUnfolder]: 123/1961 cut-off events. [2022-04-18 16:32:09,846 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-04-18 16:32:09,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2151 conditions, 1961 events. 123/1961 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12734 event pairs, 60 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 2100. Up to 170 conditions per place. [2022-04-18 16:32:09,874 INFO L132 encePairwiseOnDemand]: 638/641 looper letters, 21 selfloop transitions, 2 changer transitions 0/581 dead transitions. [2022-04-18 16:32:09,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 581 transitions, 1216 flow [2022-04-18 16:32:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:09,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1815 transitions. [2022-04-18 16:32:09,878 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9438377535101404 [2022-04-18 16:32:09,878 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1815 transitions. [2022-04-18 16:32:09,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1815 transitions. [2022-04-18 16:32:09,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:09,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1815 transitions. [2022-04-18 16:32:09,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 641.0) internal successors, (2564), 4 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,886 INFO L186 Difference]: Start difference. First operand has 575 places, 582 transitions, 1172 flow. Second operand 3 states and 1815 transitions. [2022-04-18 16:32:09,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 581 transitions, 1216 flow [2022-04-18 16:32:09,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 581 transitions, 1215 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:32:09,892 INFO L242 Difference]: Finished difference. Result has 575 places, 581 transitions, 1173 flow [2022-04-18 16:32:09,893 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=641, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1173, PETRI_PLACES=575, PETRI_TRANSITIONS=581} [2022-04-18 16:32:09,894 INFO L335 CegarLoopForPetriNet]: 593 programPoint places, -18 predicate places. [2022-04-18 16:32:09,894 INFO L478 AbstractCegarLoop]: Abstraction has has 575 places, 581 transitions, 1173 flow [2022-04-18 16:32:09,895 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:09,895 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:09,895 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:09,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:32:09,896 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2022-04-18 16:32:09,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:09,896 INFO L85 PathProgramCache]: Analyzing trace with hash -294892708, now seen corresponding path program 1 times [2022-04-18 16:32:09,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:09,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209687293] [2022-04-18 16:32:09,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:09,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:09,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:09,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209687293] [2022-04-18 16:32:09,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209687293] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:09,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:09,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:09,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275073717] [2022-04-18 16:32:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:09,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:09,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:09,999 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 641 [2022-04-18 16:32:10,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 581 transitions, 1173 flow. Second operand has 6 states, 6 states have (on average 475.8333333333333) internal successors, (2855), 6 states have internal predecessors, (2855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:10,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:10,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 641 [2022-04-18 16:32:10,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand