./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.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-exp-term-subst.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 a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:32:35,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:32:35,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:32:35,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:32:35,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:32:35,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:32:35,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:32:35,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:32:35,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:32:35,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:32:35,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:32:35,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:32:35,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:32:35,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:32:35,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:32:35,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:32:35,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:32:35,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:32:35,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:32:35,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:32:35,480 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:32:35,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:32:35,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:32:35,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:32:35,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:32:35,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:32:35,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:32:35,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:32:35,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:32:35,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:32:35,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:32:35,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:32:35,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:32:35,494 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:32:35,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:32:35,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:32:35,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:32:35,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:32:35,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:32:35,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:32:35,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:32:35,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:32:35,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:32:35,522 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:32:35,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:32:35,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:32:35,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:32:35,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:32:35,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:32:35,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:32:35,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:32:35,525 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:32:35,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:32:35,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:32:35,526 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:32:35,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:32:35,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:32:35,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:32:35,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:32:35,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:32:35,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:32:35,527 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:32:35,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:32:35,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:32:35,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:32:35,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:32:35,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:32:35,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:32:35,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:32:35,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:35,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:32:35,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:32:35,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:32:35,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:32:35,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:32:35,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:32:35,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:32:35,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:32:35,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4208e364fc80ce33bd799516b7b127a7314c394860a88240a88c2fb8dc1fa8b [2022-04-18 16:32:35,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:32:35,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:32:35,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:32:35,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:32:35,764 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:32:35,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2022-04-18 16:32:35,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0d643b3/45f37136cda34e58b198d9dbcb6516f9/FLAG9ed4f5581 [2022-04-18 16:32:36,193 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:32:36,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-subst.wvr.c [2022-04-18 16:32:36,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0d643b3/45f37136cda34e58b198d9dbcb6516f9/FLAG9ed4f5581 [2022-04-18 16:32:36,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc0d643b3/45f37136cda34e58b198d9dbcb6516f9 [2022-04-18 16:32:36,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:32:36,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:32:36,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:36,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:32:36,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:32:36,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d21592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36, skipping insertion in model container [2022-04-18 16:32:36,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:32:36,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:32:36,456 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-exp-term-subst.wvr.c[3072,3085] [2022-04-18 16:32:36,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:36,472 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:32:36,512 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-exp-term-subst.wvr.c[3072,3085] [2022-04-18 16:32:36,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:36,531 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:32:36,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36 WrapperNode [2022-04-18 16:32:36,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:36,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:36,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:32:36,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:32:36,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,586 INFO L137 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 337 [2022-04-18 16:32:36,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:36,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:32:36,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:32:36,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:32:36,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:32:36,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:32:36,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:32:36,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:32:36,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (1/1) ... [2022-04-18 16:32:36,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:36,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:36,655 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 16:32:36,661 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 16:32:36,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:32:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:32:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:32:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:32:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:32:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:32:36,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:32:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:32:36,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:32:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:32:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:32:36,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:32:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:32:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:32:36,690 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 16:32:36,794 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:32:36,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:32:37,256 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:32:37,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:32:37,271 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:32:37,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:37 BoogieIcfgContainer [2022-04-18 16:32:37,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:32:37,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:32:37,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:32:37,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:32:37,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:32:36" (1/3) ... [2022-04-18 16:32:37,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf44772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:37, skipping insertion in model container [2022-04-18 16:32:37,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:36" (2/3) ... [2022-04-18 16:32:37,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf44772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:37, skipping insertion in model container [2022-04-18 16:32:37,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:37" (3/3) ... [2022-04-18 16:32:37,281 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2022-04-18 16:32:37,285 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:32:37,285 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:32:37,285 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2022-04-18 16:32:37,285 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:32:37,366 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:32:37,408 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:32:37,413 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 16:32:37,413 INFO L341 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2022-04-18 16:32:37,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 432 places, 449 transitions, 922 flow [2022-04-18 16:32:37,562 INFO L129 PetriNetUnfolder]: 27/446 cut-off events. [2022-04-18 16:32:37,563 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:32:37,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 446 events. 27/446 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1453 event pairs, 0 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 314. Up to 2 conditions per place. [2022-04-18 16:32:37,571 INFO L82 GeneralOperation]: Start removeDead. Operand has 432 places, 449 transitions, 922 flow [2022-04-18 16:32:37,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 408 places, 423 transitions, 864 flow [2022-04-18 16:32:37,581 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2022-04-18 16:32:37,582 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:32:37,582 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:37,582 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 16:32:37,583 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:37,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:37,586 INFO L85 PathProgramCache]: Analyzing trace with hash 189706616, now seen corresponding path program 1 times [2022-04-18 16:32:37,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:37,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955410186] [2022-04-18 16:32:37,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:37,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:37,750 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 16:32:37,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:37,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955410186] [2022-04-18 16:32:37,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955410186] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:37,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:37,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:37,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060252175] [2022-04-18 16:32:37,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:37,758 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:37,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:37,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:37,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:37,779 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 449 [2022-04-18 16:32:37,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 423 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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 16:32:37,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:37,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 449 [2022-04-18 16:32:37,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:38,287 INFO L129 PetriNetUnfolder]: 298/2863 cut-off events. [2022-04-18 16:32:38,288 INFO L130 PetriNetUnfolder]: For 108/116 co-relation queries the response was YES. [2022-04-18 16:32:38,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3284 conditions, 2863 events. 298/2863 cut-off events. For 108/116 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 27065 event pairs, 132 based on Foata normal form. 72/2387 useless extension candidates. Maximal degree in co-relation 3013. Up to 284 conditions per place. [2022-04-18 16:32:38,351 INFO L132 encePairwiseOnDemand]: 439/449 looper letters, 21 selfloop transitions, 2 changer transitions 1/415 dead transitions. [2022-04-18 16:32:38,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 415 transitions, 894 flow [2022-04-18 16:32:38,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:38,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:38,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2022-04-18 16:32:38,367 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.949517446176689 [2022-04-18 16:32:38,368 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2022-04-18 16:32:38,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2022-04-18 16:32:38,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:38,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2022-04-18 16:32:38,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 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 16:32:38,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:38,389 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:38,390 INFO L186 Difference]: Start difference. First operand has 408 places, 423 transitions, 864 flow. Second operand 3 states and 1279 transitions. [2022-04-18 16:32:38,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 415 transitions, 894 flow [2022-04-18 16:32:38,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 415 transitions, 882 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:32:38,406 INFO L242 Difference]: Finished difference. Result has 403 places, 414 transitions, 838 flow [2022-04-18 16:32:38,409 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=403, PETRI_TRANSITIONS=414} [2022-04-18 16:32:38,414 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -5 predicate places. [2022-04-18 16:32:38,414 INFO L478 AbstractCegarLoop]: Abstraction has has 403 places, 414 transitions, 838 flow [2022-04-18 16:32:38,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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 16:32:38,416 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:38,416 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 16:32:38,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:32:38,417 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:38,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1595255997, now seen corresponding path program 1 times [2022-04-18 16:32:38,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:38,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56157897] [2022-04-18 16:32:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:38,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:38,486 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 16:32:38,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:38,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56157897] [2022-04-18 16:32:38,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56157897] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:38,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:38,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:38,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597377784] [2022-04-18 16:32:38,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:38,489 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:38,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:38,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:38,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:38,491 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 449 [2022-04-18 16:32:38,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 414 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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 16:32:38,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:38,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 449 [2022-04-18 16:32:38,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:38,819 INFO L129 PetriNetUnfolder]: 154/1613 cut-off events. [2022-04-18 16:32:38,820 INFO L130 PetriNetUnfolder]: For 23/25 co-relation queries the response was YES. [2022-04-18 16:32:38,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1798 conditions, 1613 events. 154/1613 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 11898 event pairs, 60 based on Foata normal form. 0/1311 useless extension candidates. Maximal degree in co-relation 1761. Up to 164 conditions per place. [2022-04-18 16:32:38,860 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 21 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-04-18 16:32:38,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 413 transitions, 882 flow [2022-04-18 16:32:38,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1272 transitions. [2022-04-18 16:32:38,863 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9443207126948775 [2022-04-18 16:32:38,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1272 transitions. [2022-04-18 16:32:38,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1272 transitions. [2022-04-18 16:32:38,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:38,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1272 transitions. [2022-04-18 16:32:38,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 424.0) internal successors, (1272), 3 states have internal predecessors, (1272), 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 16:32:38,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:38,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:38,869 INFO L186 Difference]: Start difference. First operand has 403 places, 414 transitions, 838 flow. Second operand 3 states and 1272 transitions. [2022-04-18 16:32:38,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 413 transitions, 882 flow [2022-04-18 16:32:38,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 413 transitions, 878 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:38,875 INFO L242 Difference]: Finished difference. Result has 401 places, 413 transitions, 836 flow [2022-04-18 16:32:38,876 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=401, PETRI_TRANSITIONS=413} [2022-04-18 16:32:38,877 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -7 predicate places. [2022-04-18 16:32:38,877 INFO L478 AbstractCegarLoop]: Abstraction has has 401 places, 413 transitions, 836 flow [2022-04-18 16:32:38,878 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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 16:32:38,878 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:38,878 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 16:32:38,878 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:32:38,879 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:38,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash -492387691, now seen corresponding path program 1 times [2022-04-18 16:32:38,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:38,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180753581] [2022-04-18 16:32:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:38,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:38,922 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 16:32:38,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:38,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180753581] [2022-04-18 16:32:38,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180753581] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:38,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:38,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:38,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275701222] [2022-04-18 16:32:38,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:38,924 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:38,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:38,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:38,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:38,926 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 449 [2022-04-18 16:32:38,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 413 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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 16:32:38,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:38,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 449 [2022-04-18 16:32:38,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:39,221 INFO L129 PetriNetUnfolder]: 244/2002 cut-off events. [2022-04-18 16:32:39,221 INFO L130 PetriNetUnfolder]: For 65/71 co-relation queries the response was YES. [2022-04-18 16:32:39,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2301 conditions, 2002 events. 244/2002 cut-off events. For 65/71 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 15836 event pairs, 132 based on Foata normal form. 0/1655 useless extension candidates. Maximal degree in co-relation 2257. Up to 284 conditions per place. [2022-04-18 16:32:39,258 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 21 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-04-18 16:32:39,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 412 transitions, 880 flow [2022-04-18 16:32:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1272 transitions. [2022-04-18 16:32:39,262 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9443207126948775 [2022-04-18 16:32:39,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1272 transitions. [2022-04-18 16:32:39,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1272 transitions. [2022-04-18 16:32:39,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:39,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1272 transitions. [2022-04-18 16:32:39,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 424.0) internal successors, (1272), 3 states have internal predecessors, (1272), 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 16:32:39,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:39,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:39,268 INFO L186 Difference]: Start difference. First operand has 401 places, 413 transitions, 836 flow. Second operand 3 states and 1272 transitions. [2022-04-18 16:32:39,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 412 transitions, 880 flow [2022-04-18 16:32:39,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 412 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:39,274 INFO L242 Difference]: Finished difference. Result has 400 places, 412 transitions, 834 flow [2022-04-18 16:32:39,275 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=834, PETRI_PLACES=400, PETRI_TRANSITIONS=412} [2022-04-18 16:32:39,277 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -8 predicate places. [2022-04-18 16:32:39,277 INFO L478 AbstractCegarLoop]: Abstraction has has 400 places, 412 transitions, 834 flow [2022-04-18 16:32:39,278 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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 16:32:39,278 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:39,278 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] [2022-04-18 16:32:39,278 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:32:39,278 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:39,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:39,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1449413375, now seen corresponding path program 1 times [2022-04-18 16:32:39,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:39,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715827048] [2022-04-18 16:32:39,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:39,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:39,339 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 16:32:39,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:39,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715827048] [2022-04-18 16:32:39,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715827048] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:39,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:39,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:39,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796862796] [2022-04-18 16:32:39,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:39,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:39,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:39,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:39,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:39,347 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 449 [2022-04-18 16:32:39,349 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 412 transitions, 834 flow. Second operand has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 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 16:32:39,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:39,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 449 [2022-04-18 16:32:39,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:39,796 INFO L129 PetriNetUnfolder]: 506/3503 cut-off events. [2022-04-18 16:32:39,797 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-04-18 16:32:39,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4160 conditions, 3503 events. 506/3503 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 34673 event pairs, 279 based on Foata normal form. 0/2774 useless extension candidates. Maximal degree in co-relation 4109. Up to 540 conditions per place. [2022-04-18 16:32:39,847 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 27 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-04-18 16:32:39,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 411 transitions, 890 flow [2022-04-18 16:32:39,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:39,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:39,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1260 transitions. [2022-04-18 16:32:39,850 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9354120267260579 [2022-04-18 16:32:39,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1260 transitions. [2022-04-18 16:32:39,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1260 transitions. [2022-04-18 16:32:39,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:39,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1260 transitions. [2022-04-18 16:32:39,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 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 16:32:39,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:39,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:39,858 INFO L186 Difference]: Start difference. First operand has 400 places, 412 transitions, 834 flow. Second operand 3 states and 1260 transitions. [2022-04-18 16:32:39,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 411 transitions, 890 flow [2022-04-18 16:32:39,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 411 transitions, 886 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:39,864 INFO L242 Difference]: Finished difference. Result has 399 places, 411 transitions, 832 flow [2022-04-18 16:32:39,865 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=832, PETRI_PLACES=399, PETRI_TRANSITIONS=411} [2022-04-18 16:32:39,870 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -9 predicate places. [2022-04-18 16:32:39,870 INFO L478 AbstractCegarLoop]: Abstraction has has 399 places, 411 transitions, 832 flow [2022-04-18 16:32:39,871 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 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 16:32:39,871 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:39,871 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] [2022-04-18 16:32:39,871 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:32:39,871 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:39,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:39,872 INFO L85 PathProgramCache]: Analyzing trace with hash -905471950, now seen corresponding path program 1 times [2022-04-18 16:32:39,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:39,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358093373] [2022-04-18 16:32:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:39,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:39,926 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 16:32:39,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:39,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358093373] [2022-04-18 16:32:39,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358093373] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:39,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:39,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:39,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185887863] [2022-04-18 16:32:39,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:39,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:39,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:39,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:39,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:39,929 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 449 [2022-04-18 16:32:39,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 411 transitions, 832 flow. Second operand has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 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 16:32:39,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:39,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 449 [2022-04-18 16:32:39,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:40,206 INFO L129 PetriNetUnfolder]: 213/1730 cut-off events. [2022-04-18 16:32:40,206 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-04-18 16:32:40,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 1730 events. 213/1730 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 12894 event pairs, 117 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 1962. Up to 262 conditions per place. [2022-04-18 16:32:40,250 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 27 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2022-04-18 16:32:40,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 410 transitions, 888 flow [2022-04-18 16:32:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:40,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1260 transitions. [2022-04-18 16:32:40,253 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9354120267260579 [2022-04-18 16:32:40,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1260 transitions. [2022-04-18 16:32:40,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1260 transitions. [2022-04-18 16:32:40,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:40,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1260 transitions. [2022-04-18 16:32:40,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 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 16:32:40,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:40,259 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:40,260 INFO L186 Difference]: Start difference. First operand has 399 places, 411 transitions, 832 flow. Second operand 3 states and 1260 transitions. [2022-04-18 16:32:40,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 410 transitions, 888 flow [2022-04-18 16:32:40,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 410 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:40,266 INFO L242 Difference]: Finished difference. Result has 398 places, 410 transitions, 830 flow [2022-04-18 16:32:40,266 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=398, PETRI_TRANSITIONS=410} [2022-04-18 16:32:40,267 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -10 predicate places. [2022-04-18 16:32:40,267 INFO L478 AbstractCegarLoop]: Abstraction has has 398 places, 410 transitions, 830 flow [2022-04-18 16:32:40,268 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 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 16:32:40,268 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:40,268 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] [2022-04-18 16:32:40,268 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:32:40,268 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:40,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:40,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1868796679, now seen corresponding path program 1 times [2022-04-18 16:32:40,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:40,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37385163] [2022-04-18 16:32:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:40,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:40,294 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 16:32:40,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:40,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37385163] [2022-04-18 16:32:40,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37385163] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:40,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:40,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:40,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525279261] [2022-04-18 16:32:40,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:40,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:40,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:40,298 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 449 [2022-04-18 16:32:40,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 410 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 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 16:32:40,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:40,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 449 [2022-04-18 16:32:40,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:40,724 INFO L129 PetriNetUnfolder]: 489/3359 cut-off events. [2022-04-18 16:32:40,725 INFO L130 PetriNetUnfolder]: For 120/131 co-relation queries the response was YES. [2022-04-18 16:32:40,762 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3916 conditions, 3359 events. 489/3359 cut-off events. For 120/131 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 31599 event pairs, 279 based on Foata normal form. 0/2681 useless extension candidates. Maximal degree in co-relation 3853. Up to 539 conditions per place. [2022-04-18 16:32:40,784 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 27 selfloop transitions, 2 changer transitions 0/409 dead transitions. [2022-04-18 16:32:40,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 409 transitions, 886 flow [2022-04-18 16:32:40,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:40,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1260 transitions. [2022-04-18 16:32:40,787 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9354120267260579 [2022-04-18 16:32:40,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1260 transitions. [2022-04-18 16:32:40,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1260 transitions. [2022-04-18 16:32:40,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:40,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1260 transitions. [2022-04-18 16:32:40,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 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 16:32:40,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:40,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:40,793 INFO L186 Difference]: Start difference. First operand has 398 places, 410 transitions, 830 flow. Second operand 3 states and 1260 transitions. [2022-04-18 16:32:40,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 409 transitions, 886 flow [2022-04-18 16:32:40,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 409 transitions, 882 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:40,798 INFO L242 Difference]: Finished difference. Result has 397 places, 409 transitions, 828 flow [2022-04-18 16:32:40,799 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=397, PETRI_TRANSITIONS=409} [2022-04-18 16:32:40,800 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -11 predicate places. [2022-04-18 16:32:40,800 INFO L478 AbstractCegarLoop]: Abstraction has has 397 places, 409 transitions, 828 flow [2022-04-18 16:32:40,801 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.3333333333333) internal successors, (1234), 3 states have internal predecessors, (1234), 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 16:32:40,801 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:40,801 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] [2022-04-18 16:32:40,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:32:40,802 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:40,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1738542537, now seen corresponding path program 1 times [2022-04-18 16:32:40,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:40,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377222096] [2022-04-18 16:32:40,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:40,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:40,827 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 16:32:40,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:40,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377222096] [2022-04-18 16:32:40,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377222096] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:40,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:40,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:40,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010254823] [2022-04-18 16:32:40,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:40,829 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:40,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:40,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:40,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:40,830 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 449 [2022-04-18 16:32:40,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 409 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 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 16:32:40,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:40,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 449 [2022-04-18 16:32:40,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:41,129 INFO L129 PetriNetUnfolder]: 316/2806 cut-off events. [2022-04-18 16:32:41,129 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-04-18 16:32:41,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3138 conditions, 2806 events. 316/2806 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 26640 event pairs, 117 based on Foata normal form. 0/2313 useless extension candidates. Maximal degree in co-relation 3068. Up to 265 conditions per place. [2022-04-18 16:32:41,167 INFO L132 encePairwiseOnDemand]: 441/449 looper letters, 22 selfloop transitions, 2 changer transitions 0/407 dead transitions. [2022-04-18 16:32:41,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 407 transitions, 874 flow [2022-04-18 16:32:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:41,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-04-18 16:32:41,170 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9420935412026726 [2022-04-18 16:32:41,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:41,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 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 16:32:41,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:41,175 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:41,175 INFO L186 Difference]: Start difference. First operand has 397 places, 409 transitions, 828 flow. Second operand 3 states and 1269 transitions. [2022-04-18 16:32:41,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 407 transitions, 874 flow [2022-04-18 16:32:41,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 407 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:41,181 INFO L242 Difference]: Finished difference. Result has 392 places, 405 transitions, 826 flow [2022-04-18 16:32:41,181 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=826, PETRI_PLACES=392, PETRI_TRANSITIONS=405} [2022-04-18 16:32:41,182 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -16 predicate places. [2022-04-18 16:32:41,182 INFO L478 AbstractCegarLoop]: Abstraction has has 392 places, 405 transitions, 826 flow [2022-04-18 16:32:41,183 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 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 16:32:41,183 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:41,183 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] [2022-04-18 16:32:41,183 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:32:41,183 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:41,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2933305, now seen corresponding path program 1 times [2022-04-18 16:32:41,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:41,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545615849] [2022-04-18 16:32:41,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:41,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:41,208 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 16:32:41,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:41,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545615849] [2022-04-18 16:32:41,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545615849] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:41,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:41,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480215110] [2022-04-18 16:32:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:41,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:41,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:41,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:41,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:41,212 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 449 [2022-04-18 16:32:41,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 405 transitions, 826 flow. Second operand has 3 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 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 16:32:41,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:41,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 449 [2022-04-18 16:32:41,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:41,395 INFO L129 PetriNetUnfolder]: 151/1542 cut-off events. [2022-04-18 16:32:41,396 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-04-18 16:32:41,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 1542 events. 151/1542 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11089 event pairs, 52 based on Foata normal form. 0/1288 useless extension candidates. Maximal degree in co-relation 1536. Up to 135 conditions per place. [2022-04-18 16:32:41,427 INFO L132 encePairwiseOnDemand]: 441/449 looper letters, 22 selfloop transitions, 2 changer transitions 0/403 dead transitions. [2022-04-18 16:32:41,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 403 transitions, 872 flow [2022-04-18 16:32:41,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-04-18 16:32:41,430 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9420935412026726 [2022-04-18 16:32:41,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:41,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 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 16:32:41,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:41,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:41,435 INFO L186 Difference]: Start difference. First operand has 392 places, 405 transitions, 826 flow. Second operand 3 states and 1269 transitions. [2022-04-18 16:32:41,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 403 transitions, 872 flow [2022-04-18 16:32:41,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 403 transitions, 872 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:41,440 INFO L242 Difference]: Finished difference. Result has 389 places, 401 transitions, 828 flow [2022-04-18 16:32:41,441 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=389, PETRI_TRANSITIONS=401} [2022-04-18 16:32:41,441 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -19 predicate places. [2022-04-18 16:32:41,442 INFO L478 AbstractCegarLoop]: Abstraction has has 389 places, 401 transitions, 828 flow [2022-04-18 16:32:41,442 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 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 16:32:41,442 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:41,443 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 16:32:41,443 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:32:41,443 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:41,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:41,443 INFO L85 PathProgramCache]: Analyzing trace with hash 152356134, now seen corresponding path program 1 times [2022-04-18 16:32:41,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:41,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704144705] [2022-04-18 16:32:41,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:41,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:41,487 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 16:32:41,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:41,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704144705] [2022-04-18 16:32:41,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704144705] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:41,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:41,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:41,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025072120] [2022-04-18 16:32:41,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:41,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:41,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:41,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:41,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:41,490 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 449 [2022-04-18 16:32:41,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 401 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 415.0) internal successors, (1245), 3 states have internal predecessors, (1245), 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 16:32:41,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:41,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 449 [2022-04-18 16:32:41,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:41,922 INFO L129 PetriNetUnfolder]: 506/4414 cut-off events. [2022-04-18 16:32:41,923 INFO L130 PetriNetUnfolder]: For 63/80 co-relation queries the response was YES. [2022-04-18 16:32:41,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4902 conditions, 4414 events. 506/4414 cut-off events. For 63/80 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 44959 event pairs, 182 based on Foata normal form. 0/3728 useless extension candidates. Maximal degree in co-relation 3697. Up to 445 conditions per place. [2022-04-18 16:32:41,981 INFO L132 encePairwiseOnDemand]: 441/449 looper letters, 22 selfloop transitions, 2 changer transitions 0/399 dead transitions. [2022-04-18 16:32:41,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 399 transitions, 874 flow [2022-04-18 16:32:41,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:41,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-04-18 16:32:41,986 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9420935412026726 [2022-04-18 16:32:41,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:41,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-04-18 16:32:41,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 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 16:32:41,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:42,000 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:42,000 INFO L186 Difference]: Start difference. First operand has 389 places, 401 transitions, 828 flow. Second operand 3 states and 1269 transitions. [2022-04-18 16:32:42,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 399 transitions, 874 flow [2022-04-18 16:32:42,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 399 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:42,005 INFO L242 Difference]: Finished difference. Result has 386 places, 397 transitions, 830 flow [2022-04-18 16:32:42,006 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=386, PETRI_TRANSITIONS=397} [2022-04-18 16:32:42,006 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -22 predicate places. [2022-04-18 16:32:42,006 INFO L478 AbstractCegarLoop]: Abstraction has has 386 places, 397 transitions, 830 flow [2022-04-18 16:32:42,007 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 415.0) internal successors, (1245), 3 states have internal predecessors, (1245), 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 16:32:42,007 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:42,007 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, 1, 1] [2022-04-18 16:32:42,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:32:42,007 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:42,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:42,008 INFO L85 PathProgramCache]: Analyzing trace with hash 387392908, now seen corresponding path program 1 times [2022-04-18 16:32:42,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:42,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226456743] [2022-04-18 16:32:42,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:42,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:42,033 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 16:32:42,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:42,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226456743] [2022-04-18 16:32:42,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226456743] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:42,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:42,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:32:42,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282678010] [2022-04-18 16:32:42,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:42,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:42,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:42,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:42,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:42,036 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 449 [2022-04-18 16:32:42,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 397 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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 16:32:42,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:42,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 449 [2022-04-18 16:32:42,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:42,169 INFO L129 PetriNetUnfolder]: 79/1032 cut-off events. [2022-04-18 16:32:42,169 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:32:42,181 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 1032 events. 79/1032 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6954 event pairs, 10 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 869. Up to 35 conditions per place. [2022-04-18 16:32:42,186 INFO L132 encePairwiseOnDemand]: 445/449 looper letters, 14 selfloop transitions, 3 changer transitions 0/401 dead transitions. [2022-04-18 16:32:42,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 401 transitions, 874 flow [2022-04-18 16:32:42,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:42,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:42,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1299 transitions. [2022-04-18 16:32:42,189 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9643652561247216 [2022-04-18 16:32:42,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1299 transitions. [2022-04-18 16:32:42,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1299 transitions. [2022-04-18 16:32:42,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:42,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1299 transitions. [2022-04-18 16:32:42,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 433.0) internal successors, (1299), 3 states have internal predecessors, (1299), 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 16:32:42,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:42,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:42,194 INFO L186 Difference]: Start difference. First operand has 386 places, 397 transitions, 830 flow. Second operand 3 states and 1299 transitions. [2022-04-18 16:32:42,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 401 transitions, 874 flow [2022-04-18 16:32:42,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 401 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:42,200 INFO L242 Difference]: Finished difference. Result has 390 places, 399 transitions, 852 flow [2022-04-18 16:32:42,201 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=852, PETRI_PLACES=390, PETRI_TRANSITIONS=399} [2022-04-18 16:32:42,202 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -18 predicate places. [2022-04-18 16:32:42,202 INFO L478 AbstractCegarLoop]: Abstraction has has 390 places, 399 transitions, 852 flow [2022-04-18 16:32:42,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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 16:32:42,202 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:42,203 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, 1, 1, 1, 1] [2022-04-18 16:32:42,203 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:32:42,203 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:42,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:42,204 INFO L85 PathProgramCache]: Analyzing trace with hash 2064032366, now seen corresponding path program 1 times [2022-04-18 16:32:42,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:42,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562858991] [2022-04-18 16:32:42,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:42,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:42,225 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 16:32:42,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:42,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562858991] [2022-04-18 16:32:42,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562858991] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:42,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:42,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:42,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700761950] [2022-04-18 16:32:42,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:42,227 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:42,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:42,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:42,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:42,229 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 449 [2022-04-18 16:32:42,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 399 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 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 16:32:42,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:42,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 449 [2022-04-18 16:32:42,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:42,577 INFO L129 PetriNetUnfolder]: 206/2257 cut-off events. [2022-04-18 16:32:42,578 INFO L130 PetriNetUnfolder]: For 32/38 co-relation queries the response was YES. [2022-04-18 16:32:42,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2550 conditions, 2257 events. 206/2257 cut-off events. For 32/38 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 19603 event pairs, 18 based on Foata normal form. 0/1979 useless extension candidates. Maximal degree in co-relation 2168. Up to 166 conditions per place. [2022-04-18 16:32:42,627 INFO L132 encePairwiseOnDemand]: 441/449 looper letters, 21 selfloop transitions, 4 changer transitions 0/404 dead transitions. [2022-04-18 16:32:42,627 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 404 transitions, 917 flow [2022-04-18 16:32:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1286 transitions. [2022-04-18 16:32:42,630 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9547141796585004 [2022-04-18 16:32:42,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1286 transitions. [2022-04-18 16:32:42,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1286 transitions. [2022-04-18 16:32:42,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:42,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1286 transitions. [2022-04-18 16:32:42,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 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 16:32:42,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:42,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:42,635 INFO L186 Difference]: Start difference. First operand has 390 places, 399 transitions, 852 flow. Second operand 3 states and 1286 transitions. [2022-04-18 16:32:42,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 404 transitions, 917 flow [2022-04-18 16:32:42,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 404 transitions, 911 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:42,641 INFO L242 Difference]: Finished difference. Result has 387 places, 399 transitions, 866 flow [2022-04-18 16:32:42,642 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=387, PETRI_TRANSITIONS=399} [2022-04-18 16:32:42,642 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -21 predicate places. [2022-04-18 16:32:42,642 INFO L478 AbstractCegarLoop]: Abstraction has has 387 places, 399 transitions, 866 flow [2022-04-18 16:32:42,643 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 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 16:32:42,643 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:42,643 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, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:42,643 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:32:42,644 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:42,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:42,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1436098520, now seen corresponding path program 1 times [2022-04-18 16:32:42,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:42,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870764441] [2022-04-18 16:32:42,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:42,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:42,668 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 16:32:42,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:42,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870764441] [2022-04-18 16:32:42,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870764441] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:42,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:42,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:42,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384321192] [2022-04-18 16:32:42,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:42,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:42,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:42,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:42,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:42,672 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 449 [2022-04-18 16:32:42,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 399 transitions, 866 flow. Second operand has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 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 16:32:42,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:42,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 449 [2022-04-18 16:32:42,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:42,940 INFO L129 PetriNetUnfolder]: 182/2237 cut-off events. [2022-04-18 16:32:42,941 INFO L130 PetriNetUnfolder]: For 7/15 co-relation queries the response was YES. [2022-04-18 16:32:42,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2476 conditions, 2237 events. 182/2237 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 18899 event pairs, 12 based on Foata normal form. 1/1942 useless extension candidates. Maximal degree in co-relation 2181. Up to 47 conditions per place. [2022-04-18 16:32:42,980 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 13 selfloop transitions, 2 changer transitions 0/400 dead transitions. [2022-04-18 16:32:42,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 400 transitions, 900 flow [2022-04-18 16:32:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:42,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1294 transitions. [2022-04-18 16:32:42,983 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9606533036377134 [2022-04-18 16:32:42,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1294 transitions. [2022-04-18 16:32:42,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1294 transitions. [2022-04-18 16:32:42,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:42,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1294 transitions. [2022-04-18 16:32:42,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 431.3333333333333) internal successors, (1294), 3 states have internal predecessors, (1294), 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 16:32:42,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:42,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:42,987 INFO L186 Difference]: Start difference. First operand has 387 places, 399 transitions, 866 flow. Second operand 3 states and 1294 transitions. [2022-04-18 16:32:42,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 400 transitions, 900 flow [2022-04-18 16:32:42,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 400 transitions, 900 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:42,993 INFO L242 Difference]: Finished difference. Result has 388 places, 398 transitions, 868 flow [2022-04-18 16:32:42,994 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=868, PETRI_PLACES=388, PETRI_TRANSITIONS=398} [2022-04-18 16:32:42,994 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -20 predicate places. [2022-04-18 16:32:42,994 INFO L478 AbstractCegarLoop]: Abstraction has has 388 places, 398 transitions, 868 flow [2022-04-18 16:32:42,995 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 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 16:32:42,995 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:42,995 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, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:42,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:32:42,995 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:42,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash -739752300, now seen corresponding path program 1 times [2022-04-18 16:32:42,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:42,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030549351] [2022-04-18 16:32:42,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:42,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:43,014 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 16:32:43,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:43,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030549351] [2022-04-18 16:32:43,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030549351] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:43,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:43,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:43,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522502394] [2022-04-18 16:32:43,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:43,015 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:43,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:43,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:43,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:43,017 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 449 [2022-04-18 16:32:43,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 398 transitions, 868 flow. Second operand has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 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 16:32:43,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:43,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 449 [2022-04-18 16:32:43,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:43,434 INFO L129 PetriNetUnfolder]: 265/3081 cut-off events. [2022-04-18 16:32:43,434 INFO L130 PetriNetUnfolder]: For 43/45 co-relation queries the response was YES. [2022-04-18 16:32:43,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 3081 events. 265/3081 cut-off events. For 43/45 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 27283 event pairs, 36 based on Foata normal form. 0/2702 useless extension candidates. Maximal degree in co-relation 3110. Up to 198 conditions per place. [2022-04-18 16:32:43,500 INFO L132 encePairwiseOnDemand]: 441/449 looper letters, 21 selfloop transitions, 4 changer transitions 0/403 dead transitions. [2022-04-18 16:32:43,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 403 transitions, 933 flow [2022-04-18 16:32:43,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:43,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:43,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1286 transitions. [2022-04-18 16:32:43,502 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9547141796585004 [2022-04-18 16:32:43,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1286 transitions. [2022-04-18 16:32:43,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1286 transitions. [2022-04-18 16:32:43,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:43,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1286 transitions. [2022-04-18 16:32:43,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 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 16:32:43,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:43,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:43,507 INFO L186 Difference]: Start difference. First operand has 388 places, 398 transitions, 868 flow. Second operand 3 states and 1286 transitions. [2022-04-18 16:32:43,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 403 transitions, 933 flow [2022-04-18 16:32:43,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 403 transitions, 929 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:43,513 INFO L242 Difference]: Finished difference. Result has 385 places, 398 transitions, 884 flow [2022-04-18 16:32:43,514 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=385, PETRI_TRANSITIONS=398} [2022-04-18 16:32:43,515 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -23 predicate places. [2022-04-18 16:32:43,515 INFO L478 AbstractCegarLoop]: Abstraction has has 385 places, 398 transitions, 884 flow [2022-04-18 16:32:43,515 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 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 16:32:43,515 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:43,515 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:43,516 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:32:43,516 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:43,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1505446649, now seen corresponding path program 1 times [2022-04-18 16:32:43,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:43,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429592484] [2022-04-18 16:32:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:43,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:43,538 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 16:32:43,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:43,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429592484] [2022-04-18 16:32:43,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429592484] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:43,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:43,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:32:43,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53474353] [2022-04-18 16:32:43,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:43,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:43,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:43,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:43,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:43,541 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 449 [2022-04-18 16:32:43,542 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 398 transitions, 884 flow. Second operand has 3 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 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 16:32:43,542 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:43,542 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 449 [2022-04-18 16:32:43,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:43,970 INFO L129 PetriNetUnfolder]: 221/2501 cut-off events. [2022-04-18 16:32:43,970 INFO L130 PetriNetUnfolder]: For 33/54 co-relation queries the response was YES. [2022-04-18 16:32:43,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 2501 events. 221/2501 cut-off events. For 33/54 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 22062 event pairs, 42 based on Foata normal form. 0/2184 useless extension candidates. Maximal degree in co-relation 2333. Up to 136 conditions per place. [2022-04-18 16:32:44,003 INFO L132 encePairwiseOnDemand]: 445/449 looper letters, 14 selfloop transitions, 3 changer transitions 0/402 dead transitions. [2022-04-18 16:32:44,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 402 transitions, 928 flow [2022-04-18 16:32:44,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:44,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1299 transitions. [2022-04-18 16:32:44,006 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9643652561247216 [2022-04-18 16:32:44,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1299 transitions. [2022-04-18 16:32:44,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1299 transitions. [2022-04-18 16:32:44,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:44,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1299 transitions. [2022-04-18 16:32:44,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 433.0) internal successors, (1299), 3 states have internal predecessors, (1299), 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 16:32:44,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:44,011 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:44,011 INFO L186 Difference]: Start difference. First operand has 385 places, 398 transitions, 884 flow. Second operand 3 states and 1299 transitions. [2022-04-18 16:32:44,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 402 transitions, 928 flow [2022-04-18 16:32:44,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 402 transitions, 928 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:44,017 INFO L242 Difference]: Finished difference. Result has 389 places, 400 transitions, 906 flow [2022-04-18 16:32:44,017 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=389, PETRI_TRANSITIONS=400} [2022-04-18 16:32:44,018 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -19 predicate places. [2022-04-18 16:32:44,018 INFO L478 AbstractCegarLoop]: Abstraction has has 389 places, 400 transitions, 906 flow [2022-04-18 16:32:44,018 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 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 16:32:44,018 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:44,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:44,019 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:32:44,019 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:44,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:44,019 INFO L85 PathProgramCache]: Analyzing trace with hash 218922719, now seen corresponding path program 1 times [2022-04-18 16:32:44,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:44,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303020149] [2022-04-18 16:32:44,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:44,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:44,099 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 16:32:44,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:44,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303020149] [2022-04-18 16:32:44,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303020149] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:44,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:44,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:44,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961539094] [2022-04-18 16:32:44,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:44,100 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:44,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:44,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:44,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:44,102 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 449 [2022-04-18 16:32:44,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 400 transitions, 906 flow. Second operand has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 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 16:32:44,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:44,104 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 449 [2022-04-18 16:32:44,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:44,423 INFO L129 PetriNetUnfolder]: 118/1731 cut-off events. [2022-04-18 16:32:44,423 INFO L130 PetriNetUnfolder]: For 18/34 co-relation queries the response was YES. [2022-04-18 16:32:44,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1966 conditions, 1731 events. 118/1731 cut-off events. For 18/34 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 13241 event pairs, 2 based on Foata normal form. 8/1536 useless extension candidates. Maximal degree in co-relation 1670. Up to 44 conditions per place. [2022-04-18 16:32:44,466 INFO L132 encePairwiseOnDemand]: 444/449 looper letters, 23 selfloop transitions, 4 changer transitions 0/399 dead transitions. [2022-04-18 16:32:44,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 399 transitions, 958 flow [2022-04-18 16:32:44,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:44,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2488 transitions. [2022-04-18 16:32:44,471 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9235337787676318 [2022-04-18 16:32:44,471 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2488 transitions. [2022-04-18 16:32:44,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2488 transitions. [2022-04-18 16:32:44,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:44,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2488 transitions. [2022-04-18 16:32:44,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 414.6666666666667) internal successors, (2488), 6 states have internal predecessors, (2488), 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 16:32:44,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 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 16:32:44,479 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 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 16:32:44,479 INFO L186 Difference]: Start difference. First operand has 389 places, 400 transitions, 906 flow. Second operand 6 states and 2488 transitions. [2022-04-18 16:32:44,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 399 transitions, 958 flow [2022-04-18 16:32:44,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 399 transitions, 952 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:44,485 INFO L242 Difference]: Finished difference. Result has 391 places, 399 transitions, 906 flow [2022-04-18 16:32:44,486 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=906, PETRI_PLACES=391, PETRI_TRANSITIONS=399} [2022-04-18 16:32:44,487 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -17 predicate places. [2022-04-18 16:32:44,487 INFO L478 AbstractCegarLoop]: Abstraction has has 391 places, 399 transitions, 906 flow [2022-04-18 16:32:44,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 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 16:32:44,487 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:44,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:44,488 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:32:44,488 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:44,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:44,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1244699003, now seen corresponding path program 1 times [2022-04-18 16:32:44,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:44,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142527130] [2022-04-18 16:32:44,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:44,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:44,510 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 16:32:44,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:44,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142527130] [2022-04-18 16:32:44,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142527130] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:44,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:44,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:44,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667084692] [2022-04-18 16:32:44,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:44,513 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:44,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:44,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:44,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:44,515 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 449 [2022-04-18 16:32:44,516 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 399 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 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 16:32:44,516 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:44,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 449 [2022-04-18 16:32:44,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:45,089 INFO L129 PetriNetUnfolder]: 390/4359 cut-off events. [2022-04-18 16:32:45,089 INFO L130 PetriNetUnfolder]: For 39/62 co-relation queries the response was YES. [2022-04-18 16:32:45,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5059 conditions, 4359 events. 390/4359 cut-off events. For 39/62 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 44611 event pairs, 32 based on Foata normal form. 2/3846 useless extension candidates. Maximal degree in co-relation 4544. Up to 132 conditions per place. [2022-04-18 16:32:45,151 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 16 selfloop transitions, 2 changer transitions 0/400 dead transitions. [2022-04-18 16:32:45,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 400 transitions, 946 flow [2022-04-18 16:32:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:45,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:45,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1288 transitions. [2022-04-18 16:32:45,154 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9561989606533037 [2022-04-18 16:32:45,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1288 transitions. [2022-04-18 16:32:45,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1288 transitions. [2022-04-18 16:32:45,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:45,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1288 transitions. [2022-04-18 16:32:45,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.3333333333333) internal successors, (1288), 3 states have internal predecessors, (1288), 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 16:32:45,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:45,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:45,158 INFO L186 Difference]: Start difference. First operand has 391 places, 399 transitions, 906 flow. Second operand 3 states and 1288 transitions. [2022-04-18 16:32:45,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 400 transitions, 946 flow [2022-04-18 16:32:45,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 400 transitions, 939 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:45,164 INFO L242 Difference]: Finished difference. Result has 388 places, 398 transitions, 901 flow [2022-04-18 16:32:45,164 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=901, PETRI_PLACES=388, PETRI_TRANSITIONS=398} [2022-04-18 16:32:45,165 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -20 predicate places. [2022-04-18 16:32:45,165 INFO L478 AbstractCegarLoop]: Abstraction has has 388 places, 398 transitions, 901 flow [2022-04-18 16:32:45,165 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 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 16:32:45,165 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:45,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:45,166 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:32:45,166 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:45,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:45,166 INFO L85 PathProgramCache]: Analyzing trace with hash 874417473, now seen corresponding path program 1 times [2022-04-18 16:32:45,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:45,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712005366] [2022-04-18 16:32:45,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:45,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:45,185 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 16:32:45,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:45,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712005366] [2022-04-18 16:32:45,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712005366] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:45,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:45,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:45,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159045220] [2022-04-18 16:32:45,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:45,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:45,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:45,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:45,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:45,188 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 449 [2022-04-18 16:32:45,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 398 transitions, 901 flow. Second operand has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 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 16:32:45,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:45,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 449 [2022-04-18 16:32:45,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:45,883 INFO L129 PetriNetUnfolder]: 648/5890 cut-off events. [2022-04-18 16:32:45,883 INFO L130 PetriNetUnfolder]: For 80/89 co-relation queries the response was YES. [2022-04-18 16:32:45,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6925 conditions, 5890 events. 648/5890 cut-off events. For 80/89 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 64606 event pairs, 72 based on Foata normal form. 2/5310 useless extension candidates. Maximal degree in co-relation 6339. Up to 585 conditions per place. [2022-04-18 16:32:45,954 INFO L132 encePairwiseOnDemand]: 441/449 looper letters, 20 selfloop transitions, 4 changer transitions 0/402 dead transitions. [2022-04-18 16:32:45,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 402 transitions, 961 flow [2022-04-18 16:32:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2022-04-18 16:32:45,957 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9539717891610987 [2022-04-18 16:32:45,957 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1285 transitions. [2022-04-18 16:32:45,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1285 transitions. [2022-04-18 16:32:45,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:45,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1285 transitions. [2022-04-18 16:32:45,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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 16:32:45,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:45,962 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:45,962 INFO L186 Difference]: Start difference. First operand has 388 places, 398 transitions, 901 flow. Second operand 3 states and 1285 transitions. [2022-04-18 16:32:45,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 402 transitions, 961 flow [2022-04-18 16:32:45,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 402 transitions, 957 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:45,970 INFO L242 Difference]: Finished difference. Result has 385 places, 398 transitions, 917 flow [2022-04-18 16:32:45,970 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=917, PETRI_PLACES=385, PETRI_TRANSITIONS=398} [2022-04-18 16:32:45,971 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -23 predicate places. [2022-04-18 16:32:45,971 INFO L478 AbstractCegarLoop]: Abstraction has has 385 places, 398 transitions, 917 flow [2022-04-18 16:32:45,971 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 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 16:32:45,971 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:45,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:45,972 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:32:45,972 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:45,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash -322835034, now seen corresponding path program 1 times [2022-04-18 16:32:45,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:45,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420361554] [2022-04-18 16:32:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:45,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:45,995 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 16:32:45,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:45,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420361554] [2022-04-18 16:32:45,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420361554] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:45,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:45,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:32:45,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673996010] [2022-04-18 16:32:45,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:45,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:45,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:45,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:45,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:45,998 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 449 [2022-04-18 16:32:45,999 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 398 transitions, 917 flow. Second operand has 3 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 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 16:32:45,999 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:45,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 449 [2022-04-18 16:32:45,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:46,637 INFO L129 PetriNetUnfolder]: 414/4047 cut-off events. [2022-04-18 16:32:46,637 INFO L130 PetriNetUnfolder]: For 111/131 co-relation queries the response was YES. [2022-04-18 16:32:46,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4865 conditions, 4047 events. 414/4047 cut-off events. For 111/131 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 39714 event pairs, 64 based on Foata normal form. 2/3595 useless extension candidates. Maximal degree in co-relation 4762. Up to 286 conditions per place. [2022-04-18 16:32:46,714 INFO L132 encePairwiseOnDemand]: 445/449 looper letters, 14 selfloop transitions, 3 changer transitions 0/402 dead transitions. [2022-04-18 16:32:46,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 402 transitions, 961 flow [2022-04-18 16:32:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1299 transitions. [2022-04-18 16:32:46,717 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9643652561247216 [2022-04-18 16:32:46,717 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1299 transitions. [2022-04-18 16:32:46,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1299 transitions. [2022-04-18 16:32:46,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:46,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1299 transitions. [2022-04-18 16:32:46,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 433.0) internal successors, (1299), 3 states have internal predecessors, (1299), 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 16:32:46,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:46,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:46,721 INFO L186 Difference]: Start difference. First operand has 385 places, 398 transitions, 917 flow. Second operand 3 states and 1299 transitions. [2022-04-18 16:32:46,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 402 transitions, 961 flow [2022-04-18 16:32:46,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 402 transitions, 961 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:46,727 INFO L242 Difference]: Finished difference. Result has 389 places, 400 transitions, 939 flow [2022-04-18 16:32:46,728 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=939, PETRI_PLACES=389, PETRI_TRANSITIONS=400} [2022-04-18 16:32:46,728 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -19 predicate places. [2022-04-18 16:32:46,728 INFO L478 AbstractCegarLoop]: Abstraction has has 389 places, 400 transitions, 939 flow [2022-04-18 16:32:46,729 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 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 16:32:46,729 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:46,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:46,729 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:32:46,729 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:46,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:46,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1248299634, now seen corresponding path program 1 times [2022-04-18 16:32:46,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:46,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265019038] [2022-04-18 16:32:46,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:46,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:46,757 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 16:32:46,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:46,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265019038] [2022-04-18 16:32:46,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265019038] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:46,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:46,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:46,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740466037] [2022-04-18 16:32:46,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:46,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:46,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:46,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:46,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:46,760 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 449 [2022-04-18 16:32:46,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 400 transitions, 939 flow. Second operand has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 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 16:32:46,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:46,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 449 [2022-04-18 16:32:46,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:47,269 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1217] L56-50-->L56-51: Formula: true InVars {} OutVars{thread3Thread1of1ForFork0_#t~nondet24#1=|v_thread3Thread1of1ForFork0_#t~nondet24#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#t~nondet24#1][250], [Black: 511#true, Black: 480#true, 522#true, 491#(= |#race~sort_label_2~0| 0), Black: 518#(not |thread3Thread1of1ForFork0_#t~short19#1|), Black: 489#true, Black: 459#true, 516#true, 461#(= |#race~sort_label_is_null_1~0| 0), 277#L76-7true, Black: 496#(not |thread2Thread1of1ForFork2_#t~short11#1|), 513#(= |#race~sort_label_4~0| 0), 466#(= |#race~sort_label_is_null_3~0| 0), Black: 464#true, 482#(= |#race~sort_label_0~0| 0), 505#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 471#(= |#race~sort_label_is_null_5~0| 0), Black: 469#true, 121#L56-51true, Black: 476#(not |thread1Thread1of1ForFork1_#t~short3#1|)]) [2022-04-18 16:32:47,269 INFO L384 tUnfolder$Statistics]: this new event has 181 ancestors and is cut-off event [2022-04-18 16:32:47,269 INFO L387 tUnfolder$Statistics]: existing Event has 178 ancestors and is cut-off event [2022-04-18 16:32:47,270 INFO L387 tUnfolder$Statistics]: existing Event has 186 ancestors and is cut-off event [2022-04-18 16:32:47,270 INFO L387 tUnfolder$Statistics]: existing Event has 178 ancestors and is cut-off event [2022-04-18 16:32:47,282 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1217] L56-50-->L56-51: Formula: true InVars {} OutVars{thread3Thread1of1ForFork0_#t~nondet24#1=|v_thread3Thread1of1ForFork0_#t~nondet24#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#t~nondet24#1][250], [Black: 511#true, Black: 480#true, 522#true, Black: 516#true, 491#(= |#race~sort_label_2~0| 0), Black: 489#true, Black: 459#true, 461#(= |#race~sort_label_is_null_1~0| 0), 277#L76-7true, Black: 496#(not |thread2Thread1of1ForFork2_#t~short11#1|), 513#(= |#race~sort_label_4~0| 0), 466#(= |#race~sort_label_is_null_3~0| 0), Black: 464#true, 482#(= |#race~sort_label_0~0| 0), 505#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 471#(= |#race~sort_label_is_null_5~0| 0), 518#(not |thread3Thread1of1ForFork0_#t~short19#1|), Black: 469#true, 121#L56-51true, Black: 476#(not |thread1Thread1of1ForFork1_#t~short3#1|)]) [2022-04-18 16:32:47,283 INFO L384 tUnfolder$Statistics]: this new event has 178 ancestors and is not cut-off event [2022-04-18 16:32:47,283 INFO L387 tUnfolder$Statistics]: existing Event has 190 ancestors and is not cut-off event [2022-04-18 16:32:47,283 INFO L387 tUnfolder$Statistics]: existing Event has 182 ancestors and is not cut-off event [2022-04-18 16:32:47,283 INFO L387 tUnfolder$Statistics]: existing Event has 182 ancestors and is not cut-off event [2022-04-18 16:32:47,300 INFO L129 PetriNetUnfolder]: 392/3479 cut-off events. [2022-04-18 16:32:47,300 INFO L130 PetriNetUnfolder]: For 220/224 co-relation queries the response was YES. [2022-04-18 16:32:47,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4547 conditions, 3479 events. 392/3479 cut-off events. For 220/224 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 33670 event pairs, 48 based on Foata normal form. 0/3179 useless extension candidates. Maximal degree in co-relation 4442. Up to 248 conditions per place. [2022-04-18 16:32:47,353 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 15 selfloop transitions, 2 changer transitions 0/401 dead transitions. [2022-04-18 16:32:47,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 401 transitions, 977 flow [2022-04-18 16:32:47,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1287 transitions. [2022-04-18 16:32:47,355 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.955456570155902 [2022-04-18 16:32:47,355 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1287 transitions. [2022-04-18 16:32:47,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1287 transitions. [2022-04-18 16:32:47,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:47,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1287 transitions. [2022-04-18 16:32:47,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 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 16:32:47,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:47,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:47,359 INFO L186 Difference]: Start difference. First operand has 389 places, 400 transitions, 939 flow. Second operand 3 states and 1287 transitions. [2022-04-18 16:32:47,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 401 transitions, 977 flow [2022-04-18 16:32:47,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 401 transitions, 971 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:47,366 INFO L242 Difference]: Finished difference. Result has 388 places, 399 transitions, 935 flow [2022-04-18 16:32:47,366 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=935, PETRI_PLACES=388, PETRI_TRANSITIONS=399} [2022-04-18 16:32:47,367 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -20 predicate places. [2022-04-18 16:32:47,367 INFO L478 AbstractCegarLoop]: Abstraction has has 388 places, 399 transitions, 935 flow [2022-04-18 16:32:47,367 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 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 16:32:47,368 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:47,368 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, 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 16:32:47,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:32:47,368 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:47,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:47,368 INFO L85 PathProgramCache]: Analyzing trace with hash -14015170, now seen corresponding path program 1 times [2022-04-18 16:32:47,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:47,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105755395] [2022-04-18 16:32:47,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:47,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:47,440 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 16:32:47,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:47,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105755395] [2022-04-18 16:32:47,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105755395] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:47,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:47,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:47,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003952213] [2022-04-18 16:32:47,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:47,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:47,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:47,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:47,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:47,443 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 449 [2022-04-18 16:32:47,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 399 transitions, 935 flow. Second operand has 6 states, 6 states have (on average 413.0) internal successors, (2478), 6 states have internal predecessors, (2478), 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 16:32:47,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:47,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 449 [2022-04-18 16:32:47,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:47,902 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1298] thread3EXIT-->L77-7: Formula: (and (= v_thread3Thread1of1ForFork0_thidvar3_4 0) (= v_thread3Thread1of1ForFork0_thidvar1_4 0) (= v_thread3Thread1of1ForFork0_thidvar2_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem45#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork0_thidvar0_4)) InVars {ULTIMATE.start_main_#t~mem45#1=|v_ULTIMATE.start_main_#t~mem45#1_5|, thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem45#1=|v_ULTIMATE.start_main_#t~mem45#1_5|, thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][374], [Black: 511#true, Black: 480#true, 522#true, Black: 518#(not |thread3Thread1of1ForFork0_#t~short19#1|), 491#(= |#race~sort_label_2~0| 0), 52#L77-7true, Black: 489#true, Black: 459#true, 461#(= |#race~sort_label_is_null_1~0| 0), Black: 496#(not |thread2Thread1of1ForFork2_#t~short11#1|), 513#(= |#race~sort_label_4~0| 0), 466#(= |#race~sort_label_is_null_3~0| 0), Black: 464#true, 482#(= |#race~sort_label_0~0| 0), 505#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 471#(= |#race~sort_label_is_null_5~0| 0), Black: 469#true, 531#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 476#(not |thread1Thread1of1ForFork1_#t~short3#1|)]) [2022-04-18 16:32:47,902 INFO L384 tUnfolder$Statistics]: this new event has 198 ancestors and is not cut-off event [2022-04-18 16:32:47,903 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is not cut-off event [2022-04-18 16:32:47,903 INFO L387 tUnfolder$Statistics]: existing Event has 206 ancestors and is not cut-off event [2022-04-18 16:32:47,903 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is not cut-off event [2022-04-18 16:32:47,908 INFO L129 PetriNetUnfolder]: 237/2880 cut-off events. [2022-04-18 16:32:47,908 INFO L130 PetriNetUnfolder]: For 2/18 co-relation queries the response was YES. [2022-04-18 16:32:47,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3504 conditions, 2880 events. 237/2880 cut-off events. For 2/18 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 25914 event pairs, 3 based on Foata normal form. 0/2640 useless extension candidates. Maximal degree in co-relation 3392. Up to 134 conditions per place. [2022-04-18 16:32:47,969 INFO L132 encePairwiseOnDemand]: 444/449 looper letters, 22 selfloop transitions, 4 changer transitions 0/398 dead transitions. [2022-04-18 16:32:47,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 398 transitions, 985 flow [2022-04-18 16:32:47,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:47,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:47,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2487 transitions. [2022-04-18 16:32:47,973 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.923162583518931 [2022-04-18 16:32:47,973 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2487 transitions. [2022-04-18 16:32:47,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2487 transitions. [2022-04-18 16:32:47,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:47,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2487 transitions. [2022-04-18 16:32:47,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 414.5) internal successors, (2487), 6 states have internal predecessors, (2487), 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 16:32:47,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 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 16:32:47,980 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 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 16:32:47,981 INFO L186 Difference]: Start difference. First operand has 388 places, 399 transitions, 935 flow. Second operand 6 states and 2487 transitions. [2022-04-18 16:32:47,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 398 transitions, 985 flow [2022-04-18 16:32:47,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 398 transitions, 981 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:47,988 INFO L242 Difference]: Finished difference. Result has 390 places, 398 transitions, 937 flow [2022-04-18 16:32:47,989 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=937, PETRI_PLACES=390, PETRI_TRANSITIONS=398} [2022-04-18 16:32:47,989 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -18 predicate places. [2022-04-18 16:32:47,989 INFO L478 AbstractCegarLoop]: Abstraction has has 390 places, 398 transitions, 937 flow [2022-04-18 16:32:47,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 413.0) internal successors, (2478), 6 states have internal predecessors, (2478), 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 16:32:47,990 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:47,990 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, 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, 1] [2022-04-18 16:32:47,990 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:32:47,991 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:47,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:47,991 INFO L85 PathProgramCache]: Analyzing trace with hash 872648031, now seen corresponding path program 1 times [2022-04-18 16:32:47,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:47,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041005837] [2022-04-18 16:32:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:47,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:48,058 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 16:32:48,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:48,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041005837] [2022-04-18 16:32:48,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041005837] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:48,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:48,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:48,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507320903] [2022-04-18 16:32:48,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:48,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:48,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:48,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:48,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:48,061 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 449 [2022-04-18 16:32:48,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 398 transitions, 937 flow. Second operand has 6 states, 6 states have (on average 414.0) internal successors, (2484), 6 states have internal predecessors, (2484), 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 16:32:48,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:48,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 449 [2022-04-18 16:32:48,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:48,488 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1298] thread3EXIT-->L77-7: Formula: (and (= v_thread3Thread1of1ForFork0_thidvar3_4 0) (= v_thread3Thread1of1ForFork0_thidvar1_4 0) (= v_thread3Thread1of1ForFork0_thidvar2_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem45#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork0_thidvar0_4)) InVars {ULTIMATE.start_main_#t~mem45#1=|v_ULTIMATE.start_main_#t~mem45#1_5|, thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem45#1=|v_ULTIMATE.start_main_#t~mem45#1_5|, thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][373], [Black: 511#true, Black: 480#true, Black: 518#(not |thread3Thread1of1ForFork0_#t~short19#1|), 491#(= |#race~sort_label_2~0| 0), Black: 489#true, 52#L77-7true, Black: 459#true, 461#(= |#race~sort_label_is_null_1~0| 0), 513#(= |#race~sort_label_4~0| 0), 466#(= |#race~sort_label_is_null_3~0| 0), Black: 496#(not |thread2Thread1of1ForFork2_#t~short11#1|), Black: 464#true, 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ |ULTIMATE.start_main_~#t3~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) |ULTIMATE.start_main_~#t3~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0)), 482#(= |#race~sort_label_0~0| 0), 505#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 471#(= |#race~sort_label_is_null_5~0| 0), Black: 469#true, 531#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 476#(not |thread1Thread1of1ForFork1_#t~short3#1|)]) [2022-04-18 16:32:48,488 INFO L384 tUnfolder$Statistics]: this new event has 198 ancestors and is not cut-off event [2022-04-18 16:32:48,488 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is not cut-off event [2022-04-18 16:32:48,488 INFO L387 tUnfolder$Statistics]: existing Event has 206 ancestors and is not cut-off event [2022-04-18 16:32:48,488 INFO L387 tUnfolder$Statistics]: existing Event has 198 ancestors and is not cut-off event [2022-04-18 16:32:48,494 INFO L129 PetriNetUnfolder]: 237/2876 cut-off events. [2022-04-18 16:32:48,494 INFO L130 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-04-18 16:32:48,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3422 conditions, 2876 events. 237/2876 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 25891 event pairs, 3 based on Foata normal form. 0/2640 useless extension candidates. Maximal degree in co-relation 3310. Up to 134 conditions per place. [2022-04-18 16:32:48,595 INFO L132 encePairwiseOnDemand]: 444/449 looper letters, 21 selfloop transitions, 4 changer transitions 0/397 dead transitions. [2022-04-18 16:32:48,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 397 transitions, 985 flow [2022-04-18 16:32:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:48,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2486 transitions. [2022-04-18 16:32:48,599 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9227913882702301 [2022-04-18 16:32:48,599 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2486 transitions. [2022-04-18 16:32:48,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2486 transitions. [2022-04-18 16:32:48,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:48,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2486 transitions. [2022-04-18 16:32:48,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 414.3333333333333) internal successors, (2486), 6 states have internal predecessors, (2486), 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 16:32:48,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 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 16:32:48,606 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 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 16:32:48,606 INFO L186 Difference]: Start difference. First operand has 390 places, 398 transitions, 937 flow. Second operand 6 states and 2486 transitions. [2022-04-18 16:32:48,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 397 transitions, 985 flow [2022-04-18 16:32:48,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 397 transitions, 978 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:48,611 INFO L242 Difference]: Finished difference. Result has 390 places, 397 transitions, 936 flow [2022-04-18 16:32:48,612 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=936, PETRI_PLACES=390, PETRI_TRANSITIONS=397} [2022-04-18 16:32:48,612 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -18 predicate places. [2022-04-18 16:32:48,612 INFO L478 AbstractCegarLoop]: Abstraction has has 390 places, 397 transitions, 936 flow [2022-04-18 16:32:48,613 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 414.0) internal successors, (2484), 6 states have internal predecessors, (2484), 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 16:32:48,613 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:48,613 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, 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, 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 16:32:48,614 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:32:48,614 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:48,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:48,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2126041126, now seen corresponding path program 1 times [2022-04-18 16:32:48,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:48,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451521408] [2022-04-18 16:32:48,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:48,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:48,666 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 16:32:48,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:48,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451521408] [2022-04-18 16:32:48,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451521408] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:48,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:48,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:48,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268918906] [2022-04-18 16:32:48,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:48,668 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:48,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:48,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:48,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:48,670 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 449 [2022-04-18 16:32:48,670 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 397 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 431.3333333333333) internal successors, (1294), 3 states have internal predecessors, (1294), 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 16:32:48,670 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:48,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 449 [2022-04-18 16:32:48,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:49,299 INFO L129 PetriNetUnfolder]: 400/4870 cut-off events. [2022-04-18 16:32:49,300 INFO L130 PetriNetUnfolder]: For 13/21 co-relation queries the response was YES. [2022-04-18 16:32:49,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5781 conditions, 4870 events. 400/4870 cut-off events. For 13/21 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 51895 event pairs, 19 based on Foata normal form. 0/4482 useless extension candidates. Maximal degree in co-relation 5599. Up to 210 conditions per place. [2022-04-18 16:32:49,393 INFO L132 encePairwiseOnDemand]: 447/449 looper letters, 9 selfloop transitions, 1 changer transitions 0/396 dead transitions. [2022-04-18 16:32:49,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 396 transitions, 954 flow [2022-04-18 16:32:49,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:49,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1295 transitions. [2022-04-18 16:32:49,395 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.961395694135115 [2022-04-18 16:32:49,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1295 transitions. [2022-04-18 16:32:49,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1295 transitions. [2022-04-18 16:32:49,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:49,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1295 transitions. [2022-04-18 16:32:49,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 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 16:32:49,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:49,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:49,400 INFO L186 Difference]: Start difference. First operand has 390 places, 397 transitions, 936 flow. Second operand 3 states and 1295 transitions. [2022-04-18 16:32:49,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 396 transitions, 954 flow [2022-04-18 16:32:49,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 396 transitions, 947 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:32:49,406 INFO L242 Difference]: Finished difference. Result has 387 places, 396 transitions, 929 flow [2022-04-18 16:32:49,407 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=929, PETRI_PLACES=387, PETRI_TRANSITIONS=396} [2022-04-18 16:32:49,407 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -21 predicate places. [2022-04-18 16:32:49,407 INFO L478 AbstractCegarLoop]: Abstraction has has 387 places, 396 transitions, 929 flow [2022-04-18 16:32:49,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 431.3333333333333) internal successors, (1294), 3 states have internal predecessors, (1294), 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 16:32:49,408 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,408 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, 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, 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 16:32:49,408 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:32:49,408 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:49,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash -329191748, now seen corresponding path program 1 times [2022-04-18 16:32:49,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849909983] [2022-04-18 16:32:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,440 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 16:32:49,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:49,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849909983] [2022-04-18 16:32:49,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849909983] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:49,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:49,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:49,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33085948] [2022-04-18 16:32:49,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:49,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:49,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:49,443 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 449 [2022-04-18 16:32:49,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 396 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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 16:32:49,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 449 [2022-04-18 16:32:49,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,197 INFO L129 PetriNetUnfolder]: 479/5699 cut-off events. [2022-04-18 16:32:50,198 INFO L130 PetriNetUnfolder]: For 29/45 co-relation queries the response was YES. [2022-04-18 16:32:50,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6841 conditions, 5699 events. 479/5699 cut-off events. For 29/45 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 63769 event pairs, 47 based on Foata normal form. 0/5263 useless extension candidates. Maximal degree in co-relation 6709. Up to 193 conditions per place. [2022-04-18 16:32:50,274 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 11 selfloop transitions, 1 changer transitions 0/394 dead transitions. [2022-04-18 16:32:50,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 394 transitions, 949 flow [2022-04-18 16:32:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1289 transitions. [2022-04-18 16:32:50,276 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9569413511507052 [2022-04-18 16:32:50,276 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1289 transitions. [2022-04-18 16:32:50,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1289 transitions. [2022-04-18 16:32:50,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1289 transitions. [2022-04-18 16:32:50,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 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 16:32:50,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:50,280 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:50,280 INFO L186 Difference]: Start difference. First operand has 387 places, 396 transitions, 929 flow. Second operand 3 states and 1289 transitions. [2022-04-18 16:32:50,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 394 transitions, 949 flow [2022-04-18 16:32:50,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 394 transitions, 948 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:32:50,287 INFO L242 Difference]: Finished difference. Result has 386 places, 394 transitions, 926 flow [2022-04-18 16:32:50,287 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=926, PETRI_PLACES=386, PETRI_TRANSITIONS=394} [2022-04-18 16:32:50,288 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -22 predicate places. [2022-04-18 16:32:50,288 INFO L478 AbstractCegarLoop]: Abstraction has has 386 places, 394 transitions, 926 flow [2022-04-18 16:32:50,288 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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 16:32:50,288 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,289 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, 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, 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 16:32:50,289 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 16:32:50,289 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2022-04-18 16:32:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,289 INFO L85 PathProgramCache]: Analyzing trace with hash 697211947, now seen corresponding path program 1 times [2022-04-18 16:32:50,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667546747] [2022-04-18 16:32:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,320 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 16:32:50,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667546747] [2022-04-18 16:32:50,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667546747] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916659286] [2022-04-18 16:32:50,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,322 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,323 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 449 [2022-04-18 16:32:50,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 394 transitions, 926 flow. Second operand has 3 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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 16:32:50,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 449 [2022-04-18 16:32:50,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,734 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1222] L56-51-->L56-52: Formula: (= |v_#race~result_8~0_1| |v_thread3Thread1of1ForFork0_#t~nondet24#1_3|) InVars {thread3Thread1of1ForFork0_#t~nondet24#1=|v_thread3Thread1of1ForFork0_#t~nondet24#1_3|} OutVars{thread3Thread1of1ForFork0_#t~nondet24#1=|v_thread3Thread1of1ForFork0_#t~nondet24#1_3|, #race~result_8~0=|v_#race~result_8~0_1|} AuxVars[] AssignedVars[#race~result_8~0][262], [Black: 511#true, Black: 480#true, 491#(= |#race~sort_label_2~0| 0), Black: 518#(not |thread3Thread1of1ForFork0_#t~short19#1|), Black: 489#true, 548#true, Black: 459#true, 461#(= |#race~sort_label_is_null_1~0| 0), 277#L76-7true, 513#(= |#race~sort_label_4~0| 0), Black: 496#(not |thread2Thread1of1ForFork2_#t~short11#1|), 466#(= |#race~sort_label_is_null_3~0| 0), Black: 464#true, 482#(= |#race~sort_label_0~0| 0), 544#true, 505#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 471#(= |#race~sort_label_is_null_5~0| 0), Black: 469#true, 531#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 178#L56-52true, Black: 476#(not |thread1Thread1of1ForFork1_#t~short3#1|)]) [2022-04-18 16:32:50,734 INFO L384 tUnfolder$Statistics]: this new event has 187 ancestors and is cut-off event [2022-04-18 16:32:50,734 INFO L387 tUnfolder$Statistics]: existing Event has 179 ancestors and is cut-off event [2022-04-18 16:32:50,734 INFO L387 tUnfolder$Statistics]: existing Event has 182 ancestors and is cut-off event [2022-04-18 16:32:50,734 INFO L387 tUnfolder$Statistics]: existing Event has 179 ancestors and is cut-off event [2022-04-18 16:32:50,745 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1222] L56-51-->L56-52: Formula: (= |v_#race~result_8~0_1| |v_thread3Thread1of1ForFork0_#t~nondet24#1_3|) InVars {thread3Thread1of1ForFork0_#t~nondet24#1=|v_thread3Thread1of1ForFork0_#t~nondet24#1_3|} OutVars{thread3Thread1of1ForFork0_#t~nondet24#1=|v_thread3Thread1of1ForFork0_#t~nondet24#1_3|, #race~result_8~0=|v_#race~result_8~0_1|} AuxVars[] AssignedVars[#race~result_8~0][262], [Black: 511#true, Black: 480#true, Black: 516#true, 491#(= |#race~sort_label_2~0| 0), 548#true, Black: 489#true, Black: 459#true, 461#(= |#race~sort_label_is_null_1~0| 0), 277#L76-7true, 513#(= |#race~sort_label_4~0| 0), Black: 496#(not |thread2Thread1of1ForFork2_#t~short11#1|), 466#(= |#race~sort_label_is_null_3~0| 0), Black: 464#true, 482#(= |#race~sort_label_0~0| 0), 544#true, 505#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 471#(= |#race~sort_label_is_null_5~0| 0), Black: 469#true, 531#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 178#L56-52true, Black: 476#(not |thread1Thread1of1ForFork1_#t~short3#1|)]) [2022-04-18 16:32:50,745 INFO L384 tUnfolder$Statistics]: this new event has 179 ancestors and is not cut-off event [2022-04-18 16:32:50,745 INFO L387 tUnfolder$Statistics]: existing Event has 183 ancestors and is not cut-off event [2022-04-18 16:32:50,745 INFO L387 tUnfolder$Statistics]: existing Event has 191 ancestors and is not cut-off event [2022-04-18 16:32:50,745 INFO L387 tUnfolder$Statistics]: existing Event has 183 ancestors and is not cut-off event [2022-04-18 16:32:50,758 INFO L129 PetriNetUnfolder]: 335/3350 cut-off events. [2022-04-18 16:32:50,758 INFO L130 PetriNetUnfolder]: For 87/91 co-relation queries the response was YES. [2022-04-18 16:32:50,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4185 conditions, 3350 events. 335/3350 cut-off events. For 87/91 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 31683 event pairs, 63 based on Foata normal form. 5/3085 useless extension candidates. Maximal degree in co-relation 4108. Up to 273 conditions per place. [2022-04-18 16:32:50,812 INFO L132 encePairwiseOnDemand]: 446/449 looper letters, 0 selfloop transitions, 0 changer transitions 392/392 dead transitions. [2022-04-18 16:32:50,812 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 392 transitions, 944 flow [2022-04-18 16:32:50,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1288 transitions. [2022-04-18 16:32:50,814 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9561989606533037 [2022-04-18 16:32:50,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1288 transitions. [2022-04-18 16:32:50,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1288 transitions. [2022-04-18 16:32:50,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1288 transitions. [2022-04-18 16:32:50,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.3333333333333) internal successors, (1288), 3 states have internal predecessors, (1288), 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 16:32:50,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:50,818 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 16:32:50,818 INFO L186 Difference]: Start difference. First operand has 386 places, 394 transitions, 926 flow. Second operand 3 states and 1288 transitions. [2022-04-18 16:32:50,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 392 transitions, 944 flow [2022-04-18 16:32:50,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 392 transitions, 943 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:32:50,822 INFO L242 Difference]: Finished difference. Result has 385 places, 0 transitions, 0 flow [2022-04-18 16:32:50,823 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=385, PETRI_TRANSITIONS=0} [2022-04-18 16:32:50,823 INFO L335 CegarLoopForPetriNet]: 408 programPoint places, -23 predicate places. [2022-04-18 16:32:50,823 INFO L478 AbstractCegarLoop]: Abstraction has has 385 places, 0 transitions, 0 flow [2022-04-18 16:32:50,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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 16:32:50,825 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (82 of 83 remaining) [2022-04-18 16:32:50,826 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (81 of 83 remaining) [2022-04-18 16:32:50,826 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (80 of 83 remaining) [2022-04-18 16:32:50,826 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (79 of 83 remaining) [2022-04-18 16:32:50,827 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (78 of 83 remaining) [2022-04-18 16:32:50,827 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (77 of 83 remaining) [2022-04-18 16:32:50,827 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (76 of 83 remaining) [2022-04-18 16:32:50,827 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (75 of 83 remaining) [2022-04-18 16:32:50,827 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (74 of 83 remaining) [2022-04-18 16:32:50,827 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (73 of 83 remaining) [2022-04-18 16:32:50,828 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (72 of 83 remaining) [2022-04-18 16:32:50,828 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (71 of 83 remaining) [2022-04-18 16:32:50,828 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (70 of 83 remaining) [2022-04-18 16:32:50,828 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (69 of 83 remaining) [2022-04-18 16:32:50,828 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (68 of 83 remaining) [2022-04-18 16:32:50,828 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (67 of 83 remaining) [2022-04-18 16:32:50,828 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (66 of 83 remaining) [2022-04-18 16:32:50,829 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (65 of 83 remaining) [2022-04-18 16:32:50,829 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (64 of 83 remaining) [2022-04-18 16:32:50,829 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (63 of 83 remaining) [2022-04-18 16:32:50,829 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (62 of 83 remaining) [2022-04-18 16:32:50,829 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (61 of 83 remaining) [2022-04-18 16:32:50,829 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (60 of 83 remaining) [2022-04-18 16:32:50,829 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (59 of 83 remaining) [2022-04-18 16:32:50,830 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (58 of 83 remaining) [2022-04-18 16:32:50,830 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (57 of 83 remaining) [2022-04-18 16:32:50,830 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (56 of 83 remaining) [2022-04-18 16:32:50,830 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (55 of 83 remaining) [2022-04-18 16:32:50,830 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (54 of 83 remaining) [2022-04-18 16:32:50,830 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (53 of 83 remaining) [2022-04-18 16:32:50,830 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (52 of 83 remaining) [2022-04-18 16:32:50,830 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (51 of 83 remaining) [2022-04-18 16:32:50,831 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (50 of 83 remaining) [2022-04-18 16:32:50,831 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 83 remaining) [2022-04-18 16:32:50,831 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 83 remaining) [2022-04-18 16:32:50,831 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 83 remaining) [2022-04-18 16:32:50,831 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 83 remaining) [2022-04-18 16:32:50,831 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 83 remaining) [2022-04-18 16:32:50,831 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (44 of 83 remaining) [2022-04-18 16:32:50,832 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (43 of 83 remaining) [2022-04-18 16:32:50,832 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 83 remaining) [2022-04-18 16:32:50,832 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (41 of 83 remaining) [2022-04-18 16:32:50,832 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (40 of 83 remaining) [2022-04-18 16:32:50,832 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (39 of 83 remaining) [2022-04-18 16:32:50,832 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (38 of 83 remaining) [2022-04-18 16:32:50,832 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (37 of 83 remaining) [2022-04-18 16:32:50,832 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (36 of 83 remaining) [2022-04-18 16:32:50,833 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 83 remaining) [2022-04-18 16:32:50,833 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 83 remaining) [2022-04-18 16:32:50,833 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 83 remaining) [2022-04-18 16:32:50,833 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (32 of 83 remaining) [2022-04-18 16:32:50,833 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (31 of 83 remaining) [2022-04-18 16:32:50,833 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (30 of 83 remaining) [2022-04-18 16:32:50,833 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (29 of 83 remaining) [2022-04-18 16:32:50,833 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (28 of 83 remaining) [2022-04-18 16:32:50,834 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (27 of 83 remaining) [2022-04-18 16:32:50,834 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (26 of 83 remaining) [2022-04-18 16:32:50,834 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (25 of 83 remaining) [2022-04-18 16:32:50,834 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (24 of 83 remaining) [2022-04-18 16:32:50,834 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 83 remaining) [2022-04-18 16:32:50,834 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (22 of 83 remaining) [2022-04-18 16:32:50,834 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 83 remaining) [2022-04-18 16:32:50,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 83 remaining) [2022-04-18 16:32:50,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 83 remaining) [2022-04-18 16:32:50,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (18 of 83 remaining) [2022-04-18 16:32:50,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 83 remaining) [2022-04-18 16:32:50,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (16 of 83 remaining) [2022-04-18 16:32:50,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (15 of 83 remaining) [2022-04-18 16:32:50,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (14 of 83 remaining) [2022-04-18 16:32:50,835 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (13 of 83 remaining) [2022-04-18 16:32:50,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 83 remaining) [2022-04-18 16:32:50,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (11 of 83 remaining) [2022-04-18 16:32:50,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (10 of 83 remaining) [2022-04-18 16:32:50,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (9 of 83 remaining) [2022-04-18 16:32:50,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (8 of 83 remaining) [2022-04-18 16:32:50,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (7 of 83 remaining) [2022-04-18 16:32:50,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (6 of 83 remaining) [2022-04-18 16:32:50,836 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (5 of 83 remaining) [2022-04-18 16:32:50,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (4 of 83 remaining) [2022-04-18 16:32:50,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (3 of 83 remaining) [2022-04-18 16:32:50,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (2 of 83 remaining) [2022-04-18 16:32:50,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 83 remaining) [2022-04-18 16:32:50,837 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (0 of 83 remaining) [2022-04-18 16:32:50,837 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 16:32:50,840 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:50,844 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:32:50,844 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:32:50,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:32:50 BasicIcfg [2022-04-18 16:32:50,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:32:50,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:32:50,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:32:50,847 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:32:50,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:37" (3/4) ... [2022-04-18 16:32:50,849 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:32:50,853 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:32:50,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:32:50,854 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:32:50,857 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-04-18 16:32:50,858 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:32:50,858 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:32:50,858 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:32:50,882 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:32:50,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:32:50,883 INFO L158 Benchmark]: Toolchain (without parser) took 14662.72ms. Allocated memory was 102.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 74.4MB in the beginning and 607.0MB in the end (delta: -532.6MB). Peak memory consumption was 575.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:50,883 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 91.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:32:50,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.68ms. Allocated memory was 102.8MB in the beginning and 178.3MB in the end (delta: 75.5MB). Free memory was 74.1MB in the beginning and 150.6MB in the end (delta: -76.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:32:50,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.16ms. Allocated memory is still 178.3MB. Free memory was 150.6MB in the beginning and 147.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:50,884 INFO L158 Benchmark]: Boogie Preprocessor took 28.96ms. Allocated memory is still 178.3MB. Free memory was 147.9MB in the beginning and 145.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:32:50,884 INFO L158 Benchmark]: RCFGBuilder took 655.83ms. Allocated memory is still 178.3MB. Free memory was 145.8MB in the beginning and 120.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:50,884 INFO L158 Benchmark]: TraceAbstraction took 13571.18ms. Allocated memory was 178.3MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 120.0MB in the beginning and 611.2MB in the end (delta: -491.2MB). Peak memory consumption was 542.9MB. Max. memory is 16.1GB. [2022-04-18 16:32:50,884 INFO L158 Benchmark]: Witness Printer took 35.33ms. Allocated memory is still 1.2GB. Free memory was 611.2MB in the beginning and 607.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:32:50,886 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 91.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.68ms. Allocated memory was 102.8MB in the beginning and 178.3MB in the end (delta: 75.5MB). Free memory was 74.1MB in the beginning and 150.6MB in the end (delta: -76.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.16ms. Allocated memory is still 178.3MB. Free memory was 150.6MB in the beginning and 147.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.96ms. Allocated memory is still 178.3MB. Free memory was 147.9MB in the beginning and 145.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 655.83ms. Allocated memory is still 178.3MB. Free memory was 145.8MB in the beginning and 120.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13571.18ms. Allocated memory was 178.3MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 120.0MB in the beginning and 611.2MB in the end (delta: -491.2MB). Peak memory consumption was 542.9MB. Max. memory is 16.1GB. * Witness Printer took 35.33ms. Allocated memory is still 1.2GB. Free memory was 611.2MB in the beginning and 607.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: 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: 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: 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: 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: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: 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: 65]: 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: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: 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: 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: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: 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, 690 locations, 83 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: 13.4s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 256 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 256 mSDtfsCounter, 612 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=939occurred in iteration=18, InterpolantAutomatonStates: 81, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 2201 NumberOfCodeBlocks, 2201 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2177 ConstructedInterpolants, 0 QuantifiedInterpolants, 2459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 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 47 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:32:50,915 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