./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.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/unroll-5.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 c8ce32899aa465c1eaa89b234122d94aaf792bb347295ccb743670e04bba6b8e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:45,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:45,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:45,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:45,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:45,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:45,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:45,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:45,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:45,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:45,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:45,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:45,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:45,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:45,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:45,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:45,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:45,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:45,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:45,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:45,497 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:45,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:45,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:45,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:45,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:45,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:45,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:45,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:45,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:45,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:45,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:45,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:45,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:45,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:45,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:45,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:45,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:45,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:45,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:45,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:45,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:45,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:45,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:45,535 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:45,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:45,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:45,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:45,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:45,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:45,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:45,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:45,537 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:45,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:45,538 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:45,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:45,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:45,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:45,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:45,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:45,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:45,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:45,539 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:45,539 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:45,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:45,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:45,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:45,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:45,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:45,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:45,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:45,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:45,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:45,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:45,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:45,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:45,541 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:45,541 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:45,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:45,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8ce32899aa465c1eaa89b234122d94aaf792bb347295ccb743670e04bba6b8e [2022-04-18 16:36:45,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:45,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:45,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:45,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:45,776 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:45,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2022-04-18 16:36:45,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2525be377/11b13bc8f7414144ad61b8aa6fbce9f5/FLAG4d584c35b [2022-04-18 16:36:46,212 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:46,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2022-04-18 16:36:46,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2525be377/11b13bc8f7414144ad61b8aa6fbce9f5/FLAG4d584c35b [2022-04-18 16:36:46,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2525be377/11b13bc8f7414144ad61b8aa6fbce9f5 [2022-04-18 16:36:46,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:46,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:46,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:46,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:46,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:46,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18480d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46, skipping insertion in model container [2022-04-18 16:36:46,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:46,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:46,798 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/unroll-5.wvr.c[2644,2657] [2022-04-18 16:36:46,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:46,815 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:46,848 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/unroll-5.wvr.c[2644,2657] [2022-04-18 16:36:46,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:46,871 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:46,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46 WrapperNode [2022-04-18 16:36:46,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:46,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:46,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:46,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:46,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,934 INFO L137 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 345 [2022-04-18 16:36:46,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:46,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:46,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:46,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:46,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:46,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:46,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:46,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:46,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (1/1) ... [2022-04-18 16:36:46,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:47,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:47,014 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 16:36:47,016 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 16:36:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:36:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:47,058 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 16:36:47,178 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:47,180 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:47,543 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:47,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:47,555 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:36:47,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:47 BoogieIcfgContainer [2022-04-18 16:36:47,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:47,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:47,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:47,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:47,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:46" (1/3) ... [2022-04-18 16:36:47,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8764e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:47, skipping insertion in model container [2022-04-18 16:36:47,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:46" (2/3) ... [2022-04-18 16:36:47,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8764e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:47, skipping insertion in model container [2022-04-18 16:36:47,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:47" (3/3) ... [2022-04-18 16:36:47,570 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2022-04-18 16:36:47,573 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:47,587 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:47,587 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2022-04-18 16:36:47,588 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:47,729 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:36:47,759 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:47,764 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 16:36:47,765 INFO L341 AbstractCegarLoop]: Starting to check reachability of 101 error locations. [2022-04-18 16:36:47,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 438 places, 454 transitions, 924 flow [2022-04-18 16:36:47,876 INFO L129 PetriNetUnfolder]: 23/452 cut-off events. [2022-04-18 16:36:47,877 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:36:47,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 452 events. 23/452 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 575 event pairs, 0 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 307. Up to 2 conditions per place. [2022-04-18 16:36:47,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 454 transitions, 924 flow [2022-04-18 16:36:47,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 419 places, 434 transitions, 880 flow [2022-04-18 16:36:47,895 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2022-04-18 16:36:47,896 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:47,896 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:47,896 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] [2022-04-18 16:36:47,897 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:47,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:47,900 INFO L85 PathProgramCache]: Analyzing trace with hash -685848224, now seen corresponding path program 1 times [2022-04-18 16:36:47,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:47,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631309769] [2022-04-18 16:36:47,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:47,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,048 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 16:36:48,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631309769] [2022-04-18 16:36:48,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631309769] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:48,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650047958] [2022-04-18 16:36:48,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,057 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:48,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:48,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:48,093 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 454 [2022-04-18 16:36:48,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 434 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 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 16:36:48,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 454 [2022-04-18 16:36:48,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:48,375 INFO L129 PetriNetUnfolder]: 54/1458 cut-off events. [2022-04-18 16:36:48,375 INFO L130 PetriNetUnfolder]: For 34/64 co-relation queries the response was YES. [2022-04-18 16:36:48,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1458 events. 54/1458 cut-off events. For 34/64 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6942 event pairs, 15 based on Foata normal form. 33/1198 useless extension candidates. Maximal degree in co-relation 1325. Up to 55 conditions per place. [2022-04-18 16:36:48,389 INFO L132 encePairwiseOnDemand]: 438/454 looper letters, 16 selfloop transitions, 2 changer transitions 4/420 dead transitions. [2022-04-18 16:36:48,390 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 420 transitions, 888 flow [2022-04-18 16:36:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1292 transitions. [2022-04-18 16:36:48,409 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9486049926578561 [2022-04-18 16:36:48,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1292 transitions. [2022-04-18 16:36:48,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1292 transitions. [2022-04-18 16:36:48,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:48,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1292 transitions. [2022-04-18 16:36:48,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 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 16:36:48,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:48,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:48,432 INFO L186 Difference]: Start difference. First operand has 419 places, 434 transitions, 880 flow. Second operand 3 states and 1292 transitions. [2022-04-18 16:36:48,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 420 transitions, 888 flow [2022-04-18 16:36:48,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 420 transitions, 880 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:48,449 INFO L242 Difference]: Finished difference. Result has 416 places, 416 transitions, 840 flow [2022-04-18 16:36:48,451 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=416, PETRI_TRANSITIONS=416} [2022-04-18 16:36:48,454 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -3 predicate places. [2022-04-18 16:36:48,454 INFO L478 AbstractCegarLoop]: Abstraction has has 416 places, 416 transitions, 840 flow [2022-04-18 16:36:48,455 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 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 16:36:48,456 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:48,456 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] [2022-04-18 16:36:48,456 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:48,456 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:48,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1447366186, now seen corresponding path program 1 times [2022-04-18 16:36:48,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:48,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583597562] [2022-04-18 16:36:48,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:48,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,512 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 16:36:48,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583597562] [2022-04-18 16:36:48,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583597562] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:48,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262439448] [2022-04-18 16:36:48,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,520 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:48,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:48,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:48,523 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 454 [2022-04-18 16:36:48,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 416 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 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 16:36:48,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 454 [2022-04-18 16:36:48,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:48,775 INFO L129 PetriNetUnfolder]: 147/1775 cut-off events. [2022-04-18 16:36:48,775 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-04-18 16:36:48,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 1775 events. 147/1775 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 9022 event pairs, 63 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 1961. Up to 206 conditions per place. [2022-04-18 16:36:48,795 INFO L132 encePairwiseOnDemand]: 451/454 looper letters, 31 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-04-18 16:36:48,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 415 transitions, 904 flow [2022-04-18 16:36:48,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:48,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:48,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1249 transitions. [2022-04-18 16:36:48,799 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9170337738619677 [2022-04-18 16:36:48,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1249 transitions. [2022-04-18 16:36:48,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1249 transitions. [2022-04-18 16:36:48,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:48,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1249 transitions. [2022-04-18 16:36:48,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 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 16:36:48,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:48,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:48,804 INFO L186 Difference]: Start difference. First operand has 416 places, 416 transitions, 840 flow. Second operand 3 states and 1249 transitions. [2022-04-18 16:36:48,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 415 transitions, 904 flow [2022-04-18 16:36:48,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 415 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:48,810 INFO L242 Difference]: Finished difference. Result has 411 places, 415 transitions, 838 flow [2022-04-18 16:36:48,811 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=409, 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=411, PETRI_TRANSITIONS=415} [2022-04-18 16:36:48,812 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -8 predicate places. [2022-04-18 16:36:48,812 INFO L478 AbstractCegarLoop]: Abstraction has has 411 places, 415 transitions, 838 flow [2022-04-18 16:36:48,813 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 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 16:36:48,813 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:48,813 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] [2022-04-18 16:36:48,813 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:48,813 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:48,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:48,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1908182891, now seen corresponding path program 1 times [2022-04-18 16:36:48,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:48,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090733603] [2022-04-18 16:36:48,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:48,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:48,841 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 16:36:48,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:48,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090733603] [2022-04-18 16:36:48,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090733603] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:48,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:48,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:48,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242939879] [2022-04-18 16:36:48,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:48,843 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:48,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:48,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:48,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:48,845 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 454 [2022-04-18 16:36:48,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 415 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 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 16:36:48,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:48,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 454 [2022-04-18 16:36:48,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:49,017 INFO L129 PetriNetUnfolder]: 96/1478 cut-off events. [2022-04-18 16:36:49,017 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-04-18 16:36:49,026 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 1478 events. 96/1478 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6906 event pairs, 32 based on Foata normal form. 0/1207 useless extension candidates. Maximal degree in co-relation 1567. Up to 117 conditions per place. [2022-04-18 16:36:49,035 INFO L132 encePairwiseOnDemand]: 445/454 looper letters, 21 selfloop transitions, 1 changer transitions 0/407 dead transitions. [2022-04-18 16:36:49,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 407 transitions, 866 flow [2022-04-18 16:36:49,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:49,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:49,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1254 transitions. [2022-04-18 16:36:49,038 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.920704845814978 [2022-04-18 16:36:49,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1254 transitions. [2022-04-18 16:36:49,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1254 transitions. [2022-04-18 16:36:49,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:49,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1254 transitions. [2022-04-18 16:36:49,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 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 16:36:49,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:49,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:49,045 INFO L186 Difference]: Start difference. First operand has 411 places, 415 transitions, 838 flow. Second operand 3 states and 1254 transitions. [2022-04-18 16:36:49,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 407 transitions, 866 flow [2022-04-18 16:36:49,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 407 transitions, 862 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:49,050 INFO L242 Difference]: Finished difference. Result has 403 places, 407 transitions, 820 flow [2022-04-18 16:36:49,051 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=403, PETRI_TRANSITIONS=407} [2022-04-18 16:36:49,053 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -16 predicate places. [2022-04-18 16:36:49,053 INFO L478 AbstractCegarLoop]: Abstraction has has 403 places, 407 transitions, 820 flow [2022-04-18 16:36:49,054 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 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 16:36:49,054 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:49,054 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 16:36:49,054 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:49,054 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:49,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1971107898, now seen corresponding path program 1 times [2022-04-18 16:36:49,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:49,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522763545] [2022-04-18 16:36:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:49,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:49,131 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 16:36:49,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:49,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522763545] [2022-04-18 16:36:49,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522763545] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:49,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:49,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:49,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834898378] [2022-04-18 16:36:49,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:49,133 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:49,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:49,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:49,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:49,137 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 454 [2022-04-18 16:36:49,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 407 transitions, 820 flow. Second operand has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 0 states have call successors, (0), 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 16:36:49,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:49,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 454 [2022-04-18 16:36:49,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:49,334 INFO L129 PetriNetUnfolder]: 131/1508 cut-off events. [2022-04-18 16:36:49,334 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-04-18 16:36:49,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1706 conditions, 1508 events. 131/1508 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7220 event pairs, 63 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 1668. Up to 188 conditions per place. [2022-04-18 16:36:49,351 INFO L132 encePairwiseOnDemand]: 451/454 looper letters, 25 selfloop transitions, 2 changer transitions 0/406 dead transitions. [2022-04-18 16:36:49,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 406 transitions, 872 flow [2022-04-18 16:36:49,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:49,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1261 transitions. [2022-04-18 16:36:49,354 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9258443465491923 [2022-04-18 16:36:49,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1261 transitions. [2022-04-18 16:36:49,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1261 transitions. [2022-04-18 16:36:49,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:49,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1261 transitions. [2022-04-18 16:36:49,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 0 states have call successors, (0), 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 16:36:49,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:49,363 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:49,363 INFO L186 Difference]: Start difference. First operand has 403 places, 407 transitions, 820 flow. Second operand 3 states and 1261 transitions. [2022-04-18 16:36:49,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 406 transitions, 872 flow [2022-04-18 16:36:49,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 406 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:49,368 INFO L242 Difference]: Finished difference. Result has 403 places, 406 transitions, 821 flow [2022-04-18 16:36:49,369 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=403, PETRI_TRANSITIONS=406} [2022-04-18 16:36:49,371 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -16 predicate places. [2022-04-18 16:36:49,371 INFO L478 AbstractCegarLoop]: Abstraction has has 403 places, 406 transitions, 821 flow [2022-04-18 16:36:49,372 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 0 states have call successors, (0), 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 16:36:49,372 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:49,372 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] [2022-04-18 16:36:49,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:49,372 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:49,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:49,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2146104986, now seen corresponding path program 1 times [2022-04-18 16:36:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:49,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738639257] [2022-04-18 16:36:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:49,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:49,513 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 16:36:49,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:49,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738639257] [2022-04-18 16:36:49,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738639257] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:49,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:49,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:49,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090246922] [2022-04-18 16:36:49,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:49,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:49,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:49,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:49,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:49,517 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-04-18 16:36:49,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 406 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 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 16:36:49,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:49,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-04-18 16:36:49,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:51,534 INFO L129 PetriNetUnfolder]: 3374/16354 cut-off events. [2022-04-18 16:36:51,535 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2022-04-18 16:36:51,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21203 conditions, 16354 events. 3374/16354 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 164522 event pairs, 2772 based on Foata normal form. 0/13297 useless extension candidates. Maximal degree in co-relation 21166. Up to 4831 conditions per place. [2022-04-18 16:36:51,660 INFO L132 encePairwiseOnDemand]: 448/454 looper letters, 63 selfloop transitions, 5 changer transitions 0/405 dead transitions. [2022-04-18 16:36:51,661 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 405 transitions, 955 flow [2022-04-18 16:36:51,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2289 transitions. [2022-04-18 16:36:51,666 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8403083700440529 [2022-04-18 16:36:51,666 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2289 transitions. [2022-04-18 16:36:51,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2289 transitions. [2022-04-18 16:36:51,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:51,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2289 transitions. [2022-04-18 16:36:51,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.5) internal successors, (2289), 6 states have internal predecessors, (2289), 0 states have call successors, (0), 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 16:36:51,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:36:51,675 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:36:51,675 INFO L186 Difference]: Start difference. First operand has 403 places, 406 transitions, 821 flow. Second operand 6 states and 2289 transitions. [2022-04-18 16:36:51,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 405 transitions, 955 flow [2022-04-18 16:36:51,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 405 transitions, 951 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:51,681 INFO L242 Difference]: Finished difference. Result has 405 places, 405 transitions, 825 flow [2022-04-18 16:36:51,682 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=825, PETRI_PLACES=405, PETRI_TRANSITIONS=405} [2022-04-18 16:36:51,683 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -14 predicate places. [2022-04-18 16:36:51,683 INFO L478 AbstractCegarLoop]: Abstraction has has 405 places, 405 transitions, 825 flow [2022-04-18 16:36:51,684 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 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 16:36:51,684 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:51,684 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] [2022-04-18 16:36:51,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:51,685 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:51,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:51,685 INFO L85 PathProgramCache]: Analyzing trace with hash 2103126755, now seen corresponding path program 1 times [2022-04-18 16:36:51,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:51,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000839602] [2022-04-18 16:36:51,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:51,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:51,714 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 16:36:51,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:51,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000839602] [2022-04-18 16:36:51,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000839602] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:51,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:51,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:51,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241565739] [2022-04-18 16:36:51,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:51,716 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:51,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:51,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:51,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:51,717 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 454 [2022-04-18 16:36:51,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 405 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 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 16:36:51,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:51,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 454 [2022-04-18 16:36:51,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:51,869 INFO L129 PetriNetUnfolder]: 40/1183 cut-off events. [2022-04-18 16:36:51,869 INFO L130 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-04-18 16:36:51,872 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1230 conditions, 1183 events. 40/1183 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4894 event pairs, 8 based on Foata normal form. 0/982 useless extension candidates. Maximal degree in co-relation 1212. Up to 32 conditions per place. [2022-04-18 16:36:51,874 INFO L132 encePairwiseOnDemand]: 450/454 looper letters, 11 selfloop transitions, 1 changer transitions 0/402 dead transitions. [2022-04-18 16:36:51,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 402 transitions, 843 flow [2022-04-18 16:36:51,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:51,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2022-04-18 16:36:51,877 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9427312775330396 [2022-04-18 16:36:51,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1284 transitions. [2022-04-18 16:36:51,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1284 transitions. [2022-04-18 16:36:51,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:51,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1284 transitions. [2022-04-18 16:36:51,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.0) internal successors, (1284), 3 states have internal predecessors, (1284), 0 states have call successors, (0), 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 16:36:51,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:51,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:51,888 INFO L186 Difference]: Start difference. First operand has 405 places, 405 transitions, 825 flow. Second operand 3 states and 1284 transitions. [2022-04-18 16:36:51,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 402 transitions, 843 flow [2022-04-18 16:36:51,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 402 transitions, 833 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:51,894 INFO L242 Difference]: Finished difference. Result has 399 places, 402 transitions, 811 flow [2022-04-18 16:36:51,894 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=399, PETRI_TRANSITIONS=402} [2022-04-18 16:36:51,896 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -20 predicate places. [2022-04-18 16:36:51,897 INFO L478 AbstractCegarLoop]: Abstraction has has 399 places, 402 transitions, 811 flow [2022-04-18 16:36:51,897 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 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 16:36:51,897 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:51,897 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 16:36:51,898 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:51,898 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:51,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:51,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1284823680, now seen corresponding path program 1 times [2022-04-18 16:36:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:51,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229320033] [2022-04-18 16:36:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:51,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:51,961 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 16:36:51,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:51,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229320033] [2022-04-18 16:36:51,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229320033] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:51,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:51,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:51,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347696356] [2022-04-18 16:36:51,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:51,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:51,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:51,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:51,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:51,967 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 454 [2022-04-18 16:36:51,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 402 transitions, 811 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 16:36:51,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:51,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 454 [2022-04-18 16:36:51,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:52,022 INFO L129 PetriNetUnfolder]: 21/455 cut-off events. [2022-04-18 16:36:52,022 INFO L130 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-04-18 16:36:52,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 455 events. 21/455 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 823 event pairs, 3 based on Foata normal form. 1/400 useless extension candidates. Maximal degree in co-relation 469. Up to 21 conditions per place. [2022-04-18 16:36:52,026 INFO L132 encePairwiseOnDemand]: 447/454 looper letters, 13 selfloop transitions, 3 changer transitions 0/399 dead transitions. [2022-04-18 16:36:52,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 399 transitions, 838 flow [2022-04-18 16:36:52,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:52,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1280 transitions. [2022-04-18 16:36:52,028 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9397944199706314 [2022-04-18 16:36:52,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1280 transitions. [2022-04-18 16:36:52,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1280 transitions. [2022-04-18 16:36:52,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:52,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1280 transitions. [2022-04-18 16:36:52,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.6666666666667) internal successors, (1280), 3 states have internal predecessors, (1280), 0 states have call successors, (0), 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 16:36:52,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:52,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:52,034 INFO L186 Difference]: Start difference. First operand has 399 places, 402 transitions, 811 flow. Second operand 3 states and 1280 transitions. [2022-04-18 16:36:52,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 399 transitions, 838 flow [2022-04-18 16:36:52,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 399 transitions, 837 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:52,039 INFO L242 Difference]: Finished difference. Result has 396 places, 398 transitions, 808 flow [2022-04-18 16:36:52,039 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=808, PETRI_PLACES=396, PETRI_TRANSITIONS=398} [2022-04-18 16:36:52,040 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -23 predicate places. [2022-04-18 16:36:52,040 INFO L478 AbstractCegarLoop]: Abstraction has has 396 places, 398 transitions, 808 flow [2022-04-18 16:36:52,041 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 16:36:52,041 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:52,041 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] [2022-04-18 16:36:52,041 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:52,042 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:52,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:52,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1740622680, now seen corresponding path program 1 times [2022-04-18 16:36:52,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:52,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879707793] [2022-04-18 16:36:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:52,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:52,088 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 16:36:52,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:52,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879707793] [2022-04-18 16:36:52,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879707793] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:52,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:52,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:52,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672867795] [2022-04-18 16:36:52,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:52,090 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:52,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:52,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:52,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:52,092 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 454 [2022-04-18 16:36:52,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 398 transitions, 808 flow. Second operand has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:52,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:52,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 454 [2022-04-18 16:36:52,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:52,194 INFO L129 PetriNetUnfolder]: 61/643 cut-off events. [2022-04-18 16:36:52,194 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-04-18 16:36:52,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 643 events. 61/643 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2436 event pairs, 29 based on Foata normal form. 1/581 useless extension candidates. Maximal degree in co-relation 758. Up to 92 conditions per place. [2022-04-18 16:36:52,199 INFO L132 encePairwiseOnDemand]: 427/454 looper letters, 39 selfloop transitions, 10 changer transitions 5/383 dead transitions. [2022-04-18 16:36:52,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 383 transitions, 881 flow [2022-04-18 16:36:52,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:52,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1183 transitions. [2022-04-18 16:36:52,202 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.868575624082232 [2022-04-18 16:36:52,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1183 transitions. [2022-04-18 16:36:52,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1183 transitions. [2022-04-18 16:36:52,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:52,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1183 transitions. [2022-04-18 16:36:52,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 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 16:36:52,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:52,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:52,207 INFO L186 Difference]: Start difference. First operand has 396 places, 398 transitions, 808 flow. Second operand 3 states and 1183 transitions. [2022-04-18 16:36:52,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 383 transitions, 881 flow [2022-04-18 16:36:52,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 383 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:52,212 INFO L242 Difference]: Finished difference. Result has 380 places, 377 transitions, 779 flow [2022-04-18 16:36:52,212 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=779, PETRI_PLACES=380, PETRI_TRANSITIONS=377} [2022-04-18 16:36:52,213 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -39 predicate places. [2022-04-18 16:36:52,213 INFO L478 AbstractCegarLoop]: Abstraction has has 380 places, 377 transitions, 779 flow [2022-04-18 16:36:52,214 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:36:52,214 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:52,214 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] [2022-04-18 16:36:52,214 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:52,215 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:52,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1949337363, now seen corresponding path program 1 times [2022-04-18 16:36:52,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:52,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073735856] [2022-04-18 16:36:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:52,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:52,310 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 16:36:52,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:52,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073735856] [2022-04-18 16:36:52,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073735856] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:52,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:52,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:52,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795779854] [2022-04-18 16:36:52,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:52,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:52,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:52,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:52,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:52,313 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 454 [2022-04-18 16:36:52,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 377 transitions, 779 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 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 16:36:52,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:52,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 454 [2022-04-18 16:36:52,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:53,555 INFO L129 PetriNetUnfolder]: 3193/9085 cut-off events. [2022-04-18 16:36:53,556 INFO L130 PetriNetUnfolder]: For 7/65 co-relation queries the response was YES. [2022-04-18 16:36:53,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14133 conditions, 9085 events. 3193/9085 cut-off events. For 7/65 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 70698 event pairs, 762 based on Foata normal form. 15/7960 useless extension candidates. Maximal degree in co-relation 14094. Up to 1767 conditions per place. [2022-04-18 16:36:53,597 INFO L132 encePairwiseOnDemand]: 449/454 looper letters, 199 selfloop transitions, 4 changer transitions 0/520 dead transitions. [2022-04-18 16:36:53,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 520 transitions, 1471 flow [2022-04-18 16:36:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:53,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2454 transitions. [2022-04-18 16:36:53,602 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9008810572687225 [2022-04-18 16:36:53,602 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2454 transitions. [2022-04-18 16:36:53,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2454 transitions. [2022-04-18 16:36:53,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:53,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2454 transitions. [2022-04-18 16:36:53,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 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 16:36:53,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:36:53,610 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:36:53,610 INFO L186 Difference]: Start difference. First operand has 380 places, 377 transitions, 779 flow. Second operand 6 states and 2454 transitions. [2022-04-18 16:36:53,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 520 transitions, 1471 flow [2022-04-18 16:36:53,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 520 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:53,617 INFO L242 Difference]: Finished difference. Result has 377 places, 376 transitions, 765 flow [2022-04-18 16:36:53,618 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=765, PETRI_PLACES=377, PETRI_TRANSITIONS=376} [2022-04-18 16:36:53,618 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-04-18 16:36:53,618 INFO L478 AbstractCegarLoop]: Abstraction has has 377 places, 376 transitions, 765 flow [2022-04-18 16:36:53,619 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 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 16:36:53,619 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:53,619 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] [2022-04-18 16:36:53,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:36:53,619 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:53,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:53,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1775938818, now seen corresponding path program 1 times [2022-04-18 16:36:53,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:53,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709891798] [2022-04-18 16:36:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:53,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:53,643 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 16:36:53,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:53,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709891798] [2022-04-18 16:36:53,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709891798] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:53,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:53,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591899351] [2022-04-18 16:36:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:53,644 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:53,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:53,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:53,646 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 454 [2022-04-18 16:36:53,647 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 376 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 415.6666666666667) internal successors, (1247), 3 states have internal predecessors, (1247), 0 states have call successors, (0), 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 16:36:53,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:53,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 454 [2022-04-18 16:36:53,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:53,745 INFO L129 PetriNetUnfolder]: 85/1177 cut-off events. [2022-04-18 16:36:53,745 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-04-18 16:36:53,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 1177 events. 85/1177 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4876 event pairs, 10 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 1262. Up to 104 conditions per place. [2022-04-18 16:36:53,752 INFO L132 encePairwiseOnDemand]: 446/454 looper letters, 19 selfloop transitions, 2 changer transitions 0/374 dead transitions. [2022-04-18 16:36:53,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 374 transitions, 805 flow [2022-04-18 16:36:53,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:53,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:53,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-04-18 16:36:53,754 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9317180616740088 [2022-04-18 16:36:53,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-04-18 16:36:53,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-04-18 16:36:53,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:53,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-04-18 16:36:53,757 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 16:36:53,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:53,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:36:53,759 INFO L186 Difference]: Start difference. First operand has 377 places, 376 transitions, 765 flow. Second operand 3 states and 1269 transitions. [2022-04-18 16:36:53,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 374 transitions, 805 flow [2022-04-18 16:36:53,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 374 transitions, 798 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:53,763 INFO L242 Difference]: Finished difference. Result has 370 places, 372 transitions, 760 flow [2022-04-18 16:36:53,764 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=760, PETRI_PLACES=370, PETRI_TRANSITIONS=372} [2022-04-18 16:36:53,764 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -49 predicate places. [2022-04-18 16:36:53,764 INFO L478 AbstractCegarLoop]: Abstraction has has 370 places, 372 transitions, 760 flow [2022-04-18 16:36:53,765 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 415.6666666666667) internal successors, (1247), 3 states have internal predecessors, (1247), 0 states have call successors, (0), 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 16:36:53,765 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:53,765 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] [2022-04-18 16:36:53,765 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:36:53,765 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:53,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:53,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1170695588, now seen corresponding path program 1 times [2022-04-18 16:36:53,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:53,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58650274] [2022-04-18 16:36:53,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:53,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:53,803 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 16:36:53,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:53,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58650274] [2022-04-18 16:36:53,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58650274] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:53,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:53,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:36:53,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282992395] [2022-04-18 16:36:53,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:53,804 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:36:53,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:53,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:36:53,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:36:53,806 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 454 [2022-04-18 16:36:53,808 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 372 transitions, 760 flow. Second operand has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 0 states have call successors, (0), 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 16:36:53,808 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:53,808 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 454 [2022-04-18 16:36:53,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:54,009 INFO L129 PetriNetUnfolder]: 78/1847 cut-off events. [2022-04-18 16:36:54,009 INFO L130 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-04-18 16:36:54,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1991 conditions, 1847 events. 78/1847 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 9122 event pairs, 11 based on Foata normal form. 1/1670 useless extension candidates. Maximal degree in co-relation 1953. Up to 42 conditions per place. [2022-04-18 16:36:54,018 INFO L132 encePairwiseOnDemand]: 448/454 looper letters, 29 selfloop transitions, 6 changer transitions 0/389 dead transitions. [2022-04-18 16:36:54,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 389 transitions, 868 flow [2022-04-18 16:36:54,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:36:54,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:36:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2131 transitions. [2022-04-18 16:36:54,022 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9387665198237886 [2022-04-18 16:36:54,022 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2131 transitions. [2022-04-18 16:36:54,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2131 transitions. [2022-04-18 16:36:54,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:54,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2131 transitions. [2022-04-18 16:36:54,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 426.2) internal successors, (2131), 5 states have internal predecessors, (2131), 0 states have call successors, (0), 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 16:36:54,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 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 16:36:54,029 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 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 16:36:54,029 INFO L186 Difference]: Start difference. First operand has 370 places, 372 transitions, 760 flow. Second operand 5 states and 2131 transitions. [2022-04-18 16:36:54,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 389 transitions, 868 flow [2022-04-18 16:36:54,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 389 transitions, 868 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:54,034 INFO L242 Difference]: Finished difference. Result has 377 places, 376 transitions, 798 flow [2022-04-18 16:36:54,034 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=798, PETRI_PLACES=377, PETRI_TRANSITIONS=376} [2022-04-18 16:36:54,035 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-04-18 16:36:54,035 INFO L478 AbstractCegarLoop]: Abstraction has has 377 places, 376 transitions, 798 flow [2022-04-18 16:36:54,035 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 0 states have call successors, (0), 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 16:36:54,035 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:54,035 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] [2022-04-18 16:36:54,036 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:36:54,036 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:54,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:54,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1919829365, now seen corresponding path program 1 times [2022-04-18 16:36:54,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:54,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102802774] [2022-04-18 16:36:54,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:54,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:54,096 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 16:36:54,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:54,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102802774] [2022-04-18 16:36:54,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102802774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:54,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:54,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:54,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74842713] [2022-04-18 16:36:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:54,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:54,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:54,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:54,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:54,101 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 454 [2022-04-18 16:36:54,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 376 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 377.8333333333333) internal successors, (2267), 6 states have internal predecessors, (2267), 0 states have call successors, (0), 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 16:36:54,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:54,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 454 [2022-04-18 16:36:54,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:57,218 INFO L129 PetriNetUnfolder]: 5418/25161 cut-off events. [2022-04-18 16:36:57,218 INFO L130 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2022-04-18 16:36:57,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33968 conditions, 25161 events. 5418/25161 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 270024 event pairs, 4476 based on Foata normal form. 0/22587 useless extension candidates. Maximal degree in co-relation 33924. Up to 7311 conditions per place. [2022-04-18 16:36:57,331 INFO L132 encePairwiseOnDemand]: 449/454 looper letters, 174 selfloop transitions, 4 changer transitions 0/495 dead transitions. [2022-04-18 16:36:57,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 495 transitions, 1392 flow [2022-04-18 16:36:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2429 transitions. [2022-04-18 16:36:57,335 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8917033773861968 [2022-04-18 16:36:57,335 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2429 transitions. [2022-04-18 16:36:57,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2429 transitions. [2022-04-18 16:36:57,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:57,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2429 transitions. [2022-04-18 16:36:57,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 404.8333333333333) internal successors, (2429), 6 states have internal predecessors, (2429), 0 states have call successors, (0), 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 16:36:57,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:36:57,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:36:57,343 INFO L186 Difference]: Start difference. First operand has 377 places, 376 transitions, 798 flow. Second operand 6 states and 2429 transitions. [2022-04-18 16:36:57,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 495 transitions, 1392 flow [2022-04-18 16:36:57,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 495 transitions, 1392 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:36:57,348 INFO L242 Difference]: Finished difference. Result has 381 places, 375 transitions, 804 flow [2022-04-18 16:36:57,349 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=381, PETRI_TRANSITIONS=375} [2022-04-18 16:36:57,349 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -38 predicate places. [2022-04-18 16:36:57,349 INFO L478 AbstractCegarLoop]: Abstraction has has 381 places, 375 transitions, 804 flow [2022-04-18 16:36:57,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 377.8333333333333) internal successors, (2267), 6 states have internal predecessors, (2267), 0 states have call successors, (0), 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 16:36:57,350 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:57,350 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] [2022-04-18 16:36:57,350 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:36:57,350 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:36:57,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:57,351 INFO L85 PathProgramCache]: Analyzing trace with hash 477295308, now seen corresponding path program 1 times [2022-04-18 16:36:57,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:57,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470871238] [2022-04-18 16:36:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:57,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:57,425 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 16:36:57,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:57,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470871238] [2022-04-18 16:36:57,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470871238] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:57,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:57,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:57,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365261805] [2022-04-18 16:36:57,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:57,426 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:57,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:57,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:57,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:57,429 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 454 [2022-04-18 16:36:57,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 375 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 0 states have call successors, (0), 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 16:36:57,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:57,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 454 [2022-04-18 16:36:57,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:00,523 INFO L129 PetriNetUnfolder]: 8325/24257 cut-off events. [2022-04-18 16:37:00,523 INFO L130 PetriNetUnfolder]: For 2734/2734 co-relation queries the response was YES. [2022-04-18 16:37:00,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39877 conditions, 24257 events. 8325/24257 cut-off events. For 2734/2734 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 229844 event pairs, 3496 based on Foata normal form. 0/22227 useless extension candidates. Maximal degree in co-relation 39832. Up to 6359 conditions per place. [2022-04-18 16:37:00,815 INFO L132 encePairwiseOnDemand]: 448/454 looper letters, 226 selfloop transitions, 6 changer transitions 0/538 dead transitions. [2022-04-18 16:37:00,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 538 transitions, 1602 flow [2022-04-18 16:37:00,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:00,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:00,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2438 transitions. [2022-04-18 16:37:00,819 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.895007342143906 [2022-04-18 16:37:00,820 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2438 transitions. [2022-04-18 16:37:00,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2438 transitions. [2022-04-18 16:37:00,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:00,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2438 transitions. [2022-04-18 16:37:00,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 406.3333333333333) internal successors, (2438), 6 states have internal predecessors, (2438), 0 states have call successors, (0), 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 16:37:00,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:37:00,827 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:37:00,827 INFO L186 Difference]: Start difference. First operand has 381 places, 375 transitions, 804 flow. Second operand 6 states and 2438 transitions. [2022-04-18 16:37:00,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 538 transitions, 1602 flow [2022-04-18 16:37:00,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 538 transitions, 1595 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:37:00,835 INFO L242 Difference]: Finished difference. Result has 381 places, 374 transitions, 807 flow [2022-04-18 16:37:00,835 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=807, PETRI_PLACES=381, PETRI_TRANSITIONS=374} [2022-04-18 16:37:00,836 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -38 predicate places. [2022-04-18 16:37:00,836 INFO L478 AbstractCegarLoop]: Abstraction has has 381 places, 374 transitions, 807 flow [2022-04-18 16:37:00,837 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 0 states have call successors, (0), 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 16:37:00,837 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:00,837 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] [2022-04-18 16:37:00,837 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:37:00,837 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:37:00,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:00,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1087598914, now seen corresponding path program 1 times [2022-04-18 16:37:00,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:00,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159032032] [2022-04-18 16:37:00,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:00,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:00,889 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 16:37:00,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:00,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159032032] [2022-04-18 16:37:00,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159032032] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:00,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:00,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:37:00,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664969178] [2022-04-18 16:37:00,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:00,890 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:37:00,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:00,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:37:00,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:37:00,893 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 454 [2022-04-18 16:37:00,894 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 374 transitions, 807 flow. Second operand has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 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 16:37:00,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:00,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 454 [2022-04-18 16:37:00,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:01,120 INFO L129 PetriNetUnfolder]: 159/1453 cut-off events. [2022-04-18 16:37:01,120 INFO L130 PetriNetUnfolder]: For 132/133 co-relation queries the response was YES. [2022-04-18 16:37:01,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1963 conditions, 1453 events. 159/1453 cut-off events. For 132/133 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 9430 event pairs, 22 based on Foata normal form. 0/1328 useless extension candidates. Maximal degree in co-relation 1919. Up to 367 conditions per place. [2022-04-18 16:37:01,131 INFO L132 encePairwiseOnDemand]: 448/454 looper letters, 68 selfloop transitions, 6 changer transitions 0/390 dead transitions. [2022-04-18 16:37:01,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 390 transitions, 990 flow [2022-04-18 16:37:01,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:37:01,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:37:01,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1970 transitions. [2022-04-18 16:37:01,135 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8678414096916299 [2022-04-18 16:37:01,135 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1970 transitions. [2022-04-18 16:37:01,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1970 transitions. [2022-04-18 16:37:01,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:01,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1970 transitions. [2022-04-18 16:37:01,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 0 states have call successors, (0), 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 16:37:01,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 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 16:37:01,141 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 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 16:37:01,141 INFO L186 Difference]: Start difference. First operand has 381 places, 374 transitions, 807 flow. Second operand 5 states and 1970 transitions. [2022-04-18 16:37:01,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 390 transitions, 990 flow [2022-04-18 16:37:01,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 390 transitions, 978 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:01,146 INFO L242 Difference]: Finished difference. Result has 383 places, 378 transitions, 833 flow [2022-04-18 16:37:01,147 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=833, PETRI_PLACES=383, PETRI_TRANSITIONS=378} [2022-04-18 16:37:01,147 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -36 predicate places. [2022-04-18 16:37:01,147 INFO L478 AbstractCegarLoop]: Abstraction has has 383 places, 378 transitions, 833 flow [2022-04-18 16:37:01,148 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 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 16:37:01,148 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:01,148 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] [2022-04-18 16:37:01,148 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:37:01,149 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:37:01,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:01,149 INFO L85 PathProgramCache]: Analyzing trace with hash -220324401, now seen corresponding path program 1 times [2022-04-18 16:37:01,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:01,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064680671] [2022-04-18 16:37:01,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:01,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:01,172 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 16:37:01,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:01,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064680671] [2022-04-18 16:37:01,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064680671] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:01,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:01,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:01,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360256680] [2022-04-18 16:37:01,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:01,174 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:01,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:01,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:01,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:01,176 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 454 [2022-04-18 16:37:01,177 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 378 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 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 16:37:01,177 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:01,177 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 454 [2022-04-18 16:37:01,177 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:01,289 INFO L129 PetriNetUnfolder]: 43/961 cut-off events. [2022-04-18 16:37:01,289 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-04-18 16:37:01,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 961 events. 43/961 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2745 event pairs, 16 based on Foata normal form. 0/887 useless extension candidates. Maximal degree in co-relation 1074. Up to 47 conditions per place. [2022-04-18 16:37:01,299 INFO L132 encePairwiseOnDemand]: 451/454 looper letters, 12 selfloop transitions, 2 changer transitions 0/378 dead transitions. [2022-04-18 16:37:01,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 378 transitions, 862 flow [2022-04-18 16:37:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:01,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:01,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-04-18 16:37:01,302 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9317180616740088 [2022-04-18 16:37:01,302 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-04-18 16:37:01,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-04-18 16:37:01,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:01,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-04-18 16:37:01,304 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 16:37:01,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:01,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:01,306 INFO L186 Difference]: Start difference. First operand has 383 places, 378 transitions, 833 flow. Second operand 3 states and 1269 transitions. [2022-04-18 16:37:01,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 378 transitions, 862 flow [2022-04-18 16:37:01,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 378 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:37:01,311 INFO L242 Difference]: Finished difference. Result has 384 places, 377 transitions, 835 flow [2022-04-18 16:37:01,311 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=384, PETRI_TRANSITIONS=377} [2022-04-18 16:37:01,312 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -35 predicate places. [2022-04-18 16:37:01,312 INFO L478 AbstractCegarLoop]: Abstraction has has 384 places, 377 transitions, 835 flow [2022-04-18 16:37:01,312 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 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 16:37:01,313 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:01,313 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 16:37:01,313 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:37:01,313 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:37:01,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:01,313 INFO L85 PathProgramCache]: Analyzing trace with hash -18494300, now seen corresponding path program 1 times [2022-04-18 16:37:01,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:01,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109851883] [2022-04-18 16:37:01,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:01,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:01,376 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 16:37:01,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:01,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109851883] [2022-04-18 16:37:01,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109851883] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:01,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:01,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:37:01,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254380851] [2022-04-18 16:37:01,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:01,378 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:37:01,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:01,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:37:01,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:37:01,380 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 454 [2022-04-18 16:37:01,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 377 transitions, 835 flow. Second operand has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 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 16:37:01,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:01,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 454 [2022-04-18 16:37:01,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:05,031 INFO L129 PetriNetUnfolder]: 8112/28463 cut-off events. [2022-04-18 16:37:05,032 INFO L130 PetriNetUnfolder]: For 1170/1170 co-relation queries the response was YES. [2022-04-18 16:37:05,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43566 conditions, 28463 events. 8112/28463 cut-off events. For 1170/1170 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 287524 event pairs, 2858 based on Foata normal form. 0/26804 useless extension candidates. Maximal degree in co-relation 43516. Up to 5250 conditions per place. [2022-04-18 16:37:05,225 INFO L132 encePairwiseOnDemand]: 424/454 looper letters, 117 selfloop transitions, 26 changer transitions 0/440 dead transitions. [2022-04-18 16:37:05,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 440 transitions, 1259 flow [2022-04-18 16:37:05,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:37:05,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:37:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2281 transitions. [2022-04-18 16:37:05,229 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8373715124816447 [2022-04-18 16:37:05,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2281 transitions. [2022-04-18 16:37:05,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2281 transitions. [2022-04-18 16:37:05,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:05,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2281 transitions. [2022-04-18 16:37:05,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 380.1666666666667) internal successors, (2281), 6 states have internal predecessors, (2281), 0 states have call successors, (0), 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 16:37:05,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:37:05,236 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 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 16:37:05,236 INFO L186 Difference]: Start difference. First operand has 384 places, 377 transitions, 835 flow. Second operand 6 states and 2281 transitions. [2022-04-18 16:37:05,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 440 transitions, 1259 flow [2022-04-18 16:37:05,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 440 transitions, 1255 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:05,245 INFO L242 Difference]: Finished difference. Result has 382 places, 372 transitions, 873 flow [2022-04-18 16:37:05,245 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=873, PETRI_PLACES=382, PETRI_TRANSITIONS=372} [2022-04-18 16:37:05,246 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -37 predicate places. [2022-04-18 16:37:05,246 INFO L478 AbstractCegarLoop]: Abstraction has has 382 places, 372 transitions, 873 flow [2022-04-18 16:37:05,246 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 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 16:37:05,247 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:05,247 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] [2022-04-18 16:37:05,247 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:37:05,247 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:37:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1245292839, now seen corresponding path program 1 times [2022-04-18 16:37:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:05,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19210842] [2022-04-18 16:37:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:05,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:05,269 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 16:37:05,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:05,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19210842] [2022-04-18 16:37:05,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19210842] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:05,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:05,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:05,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700929067] [2022-04-18 16:37:05,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:05,270 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:05,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:05,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:05,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:05,272 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-04-18 16:37:05,273 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 372 transitions, 873 flow. Second operand has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 0 states have call successors, (0), 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 16:37:05,273 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:05,273 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-04-18 16:37:05,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:05,440 INFO L129 PetriNetUnfolder]: 141/1403 cut-off events. [2022-04-18 16:37:05,440 INFO L130 PetriNetUnfolder]: For 143/144 co-relation queries the response was YES. [2022-04-18 16:37:05,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2021 conditions, 1403 events. 141/1403 cut-off events. For 143/144 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8826 event pairs, 102 based on Foata normal form. 0/1317 useless extension candidates. Maximal degree in co-relation 1973. Up to 347 conditions per place. [2022-04-18 16:37:05,449 INFO L132 encePairwiseOnDemand]: 451/454 looper letters, 48 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2022-04-18 16:37:05,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 372 transitions, 974 flow [2022-04-18 16:37:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:05,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1161 transitions. [2022-04-18 16:37:05,452 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8524229074889867 [2022-04-18 16:37:05,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1161 transitions. [2022-04-18 16:37:05,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1161 transitions. [2022-04-18 16:37:05,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:05,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1161 transitions. [2022-04-18 16:37:05,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 0 states have call successors, (0), 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 16:37:05,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:05,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:05,456 INFO L186 Difference]: Start difference. First operand has 382 places, 372 transitions, 873 flow. Second operand 3 states and 1161 transitions. [2022-04-18 16:37:05,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 372 transitions, 974 flow [2022-04-18 16:37:05,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 372 transitions, 922 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:37:05,461 INFO L242 Difference]: Finished difference. Result has 378 places, 371 transitions, 823 flow [2022-04-18 16:37:05,461 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=378, PETRI_TRANSITIONS=371} [2022-04-18 16:37:05,461 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -41 predicate places. [2022-04-18 16:37:05,462 INFO L478 AbstractCegarLoop]: Abstraction has has 378 places, 371 transitions, 823 flow [2022-04-18 16:37:05,462 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 0 states have call successors, (0), 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 16:37:05,462 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:05,462 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 16:37:05,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:37:05,462 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:37:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:05,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1608529474, now seen corresponding path program 1 times [2022-04-18 16:37:05,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:05,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512484487] [2022-04-18 16:37:05,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:05,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:05,491 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 16:37:05,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:05,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512484487] [2022-04-18 16:37:05,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512484487] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:05,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:05,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:05,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698799560] [2022-04-18 16:37:05,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:05,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:05,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:05,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:05,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:05,493 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-04-18 16:37:05,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 371 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 0 states have call successors, (0), 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 16:37:05,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:05,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-04-18 16:37:05,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:05,657 INFO L129 PetriNetUnfolder]: 139/1396 cut-off events. [2022-04-18 16:37:05,657 INFO L130 PetriNetUnfolder]: For 131/132 co-relation queries the response was YES. [2022-04-18 16:37:05,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 1396 events. 139/1396 cut-off events. For 131/132 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8602 event pairs, 100 based on Foata normal form. 0/1315 useless extension candidates. Maximal degree in co-relation 1819. Up to 340 conditions per place. [2022-04-18 16:37:05,668 INFO L132 encePairwiseOnDemand]: 451/454 looper letters, 47 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2022-04-18 16:37:05,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 371 transitions, 922 flow [2022-04-18 16:37:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:05,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1160 transitions. [2022-04-18 16:37:05,670 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8516886930983847 [2022-04-18 16:37:05,670 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1160 transitions. [2022-04-18 16:37:05,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1160 transitions. [2022-04-18 16:37:05,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:05,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1160 transitions. [2022-04-18 16:37:05,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 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 16:37:05,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:05,674 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:05,674 INFO L186 Difference]: Start difference. First operand has 378 places, 371 transitions, 823 flow. Second operand 3 states and 1160 transitions. [2022-04-18 16:37:05,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 371 transitions, 922 flow [2022-04-18 16:37:05,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 371 transitions, 918 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:05,679 INFO L242 Difference]: Finished difference. Result has 377 places, 370 transitions, 821 flow [2022-04-18 16:37:05,679 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=377, PETRI_TRANSITIONS=370} [2022-04-18 16:37:05,679 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-04-18 16:37:05,679 INFO L478 AbstractCegarLoop]: Abstraction has has 377 places, 370 transitions, 821 flow [2022-04-18 16:37:05,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 0 states have call successors, (0), 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 16:37:05,680 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:05,680 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 16:37:05,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:37:05,680 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:37:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:05,681 INFO L85 PathProgramCache]: Analyzing trace with hash 758723701, now seen corresponding path program 1 times [2022-04-18 16:37:05,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:05,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854843829] [2022-04-18 16:37:05,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:05,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:05,834 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 16:37:05,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:05,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854843829] [2022-04-18 16:37:05,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854843829] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:05,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:05,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:05,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844878643] [2022-04-18 16:37:05,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:05,836 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:05,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:05,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:05,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:05,838 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-04-18 16:37:05,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 370 transitions, 821 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 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 16:37:05,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:05,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-04-18 16:37:05,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:06,044 INFO L129 PetriNetUnfolder]: 137/1389 cut-off events. [2022-04-18 16:37:06,044 INFO L130 PetriNetUnfolder]: For 129/130 co-relation queries the response was YES. [2022-04-18 16:37:06,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 1389 events. 137/1389 cut-off events. For 129/130 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8596 event pairs, 98 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 1805. Up to 333 conditions per place. [2022-04-18 16:37:06,054 INFO L132 encePairwiseOnDemand]: 451/454 looper letters, 46 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2022-04-18 16:37:06,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 370 transitions, 918 flow [2022-04-18 16:37:06,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1159 transitions. [2022-04-18 16:37:06,057 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8509544787077826 [2022-04-18 16:37:06,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1159 transitions. [2022-04-18 16:37:06,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1159 transitions. [2022-04-18 16:37:06,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:06,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1159 transitions. [2022-04-18 16:37:06,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 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 16:37:06,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:06,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:06,061 INFO L186 Difference]: Start difference. First operand has 377 places, 370 transitions, 821 flow. Second operand 3 states and 1159 transitions. [2022-04-18 16:37:06,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 370 transitions, 918 flow [2022-04-18 16:37:06,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 370 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:06,065 INFO L242 Difference]: Finished difference. Result has 376 places, 369 transitions, 819 flow [2022-04-18 16:37:06,066 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=819, PETRI_PLACES=376, PETRI_TRANSITIONS=369} [2022-04-18 16:37:06,066 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -43 predicate places. [2022-04-18 16:37:06,066 INFO L478 AbstractCegarLoop]: Abstraction has has 376 places, 369 transitions, 819 flow [2022-04-18 16:37:06,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 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 16:37:06,067 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:06,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:37:06,067 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:37:06,067 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:37:06,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:06,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2101440844, now seen corresponding path program 1 times [2022-04-18 16:37:06,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:06,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798858428] [2022-04-18 16:37:06,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:06,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:06,108 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 16:37:06,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:06,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798858428] [2022-04-18 16:37:06,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798858428] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:06,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:06,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:06,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658016220] [2022-04-18 16:37:06,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:06,109 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:06,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:06,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:06,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:06,111 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-04-18 16:37:06,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 369 transitions, 819 flow. Second operand has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 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 16:37:06,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:06,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-04-18 16:37:06,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:06,300 INFO L129 PetriNetUnfolder]: 135/1382 cut-off events. [2022-04-18 16:37:06,300 INFO L130 PetriNetUnfolder]: For 127/128 co-relation queries the response was YES. [2022-04-18 16:37:06,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 1382 events. 135/1382 cut-off events. For 127/128 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8520 event pairs, 96 based on Foata normal form. 0/1311 useless extension candidates. Maximal degree in co-relation 1791. Up to 326 conditions per place. [2022-04-18 16:37:06,310 INFO L132 encePairwiseOnDemand]: 451/454 looper letters, 45 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2022-04-18 16:37:06,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 369 transitions, 914 flow [2022-04-18 16:37:06,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:06,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1158 transitions. [2022-04-18 16:37:06,312 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8502202643171806 [2022-04-18 16:37:06,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1158 transitions. [2022-04-18 16:37:06,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1158 transitions. [2022-04-18 16:37:06,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:06,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1158 transitions. [2022-04-18 16:37:06,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 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 16:37:06,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:06,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:06,316 INFO L186 Difference]: Start difference. First operand has 376 places, 369 transitions, 819 flow. Second operand 3 states and 1158 transitions. [2022-04-18 16:37:06,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 369 transitions, 914 flow [2022-04-18 16:37:06,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 369 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:06,321 INFO L242 Difference]: Finished difference. Result has 375 places, 368 transitions, 817 flow [2022-04-18 16:37:06,321 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=817, PETRI_PLACES=375, PETRI_TRANSITIONS=368} [2022-04-18 16:37:06,321 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -44 predicate places. [2022-04-18 16:37:06,322 INFO L478 AbstractCegarLoop]: Abstraction has has 375 places, 368 transitions, 817 flow [2022-04-18 16:37:06,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 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 16:37:06,322 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:37:06,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:06,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:37:06,323 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err35ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-04-18 16:37:06,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:37:06,323 INFO L85 PathProgramCache]: Analyzing trace with hash -854194109, now seen corresponding path program 1 times [2022-04-18 16:37:06,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:37:06,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944707859] [2022-04-18 16:37:06,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:37:06,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:37:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:37:06,367 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 16:37:06,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:37:06,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944707859] [2022-04-18 16:37:06,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944707859] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:37:06,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:37:06,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:37:06,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245889582] [2022-04-18 16:37:06,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:37:06,369 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:37:06,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:37:06,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:37:06,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:37:06,371 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-04-18 16:37:06,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 368 transitions, 817 flow. Second operand has 3 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 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 16:37:06,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:37:06,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-04-18 16:37:06,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:37:06,556 INFO L129 PetriNetUnfolder]: 133/1375 cut-off events. [2022-04-18 16:37:06,556 INFO L130 PetriNetUnfolder]: For 125/126 co-relation queries the response was YES. [2022-04-18 16:37:06,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 1375 events. 133/1375 cut-off events. For 125/126 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8444 event pairs, 94 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 1777. Up to 319 conditions per place. [2022-04-18 16:37:06,564 INFO L132 encePairwiseOnDemand]: 451/454 looper letters, 0 selfloop transitions, 0 changer transitions 368/368 dead transitions. [2022-04-18 16:37:06,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 368 transitions, 910 flow [2022-04-18 16:37:06,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:37:06,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:37:06,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1157 transitions. [2022-04-18 16:37:06,567 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8494860499265786 [2022-04-18 16:37:06,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1157 transitions. [2022-04-18 16:37:06,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1157 transitions. [2022-04-18 16:37:06,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:37:06,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1157 transitions. [2022-04-18 16:37:06,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 0 states have call successors, (0), 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 16:37:06,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:06,570 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 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 16:37:06,571 INFO L186 Difference]: Start difference. First operand has 375 places, 368 transitions, 817 flow. Second operand 3 states and 1157 transitions. [2022-04-18 16:37:06,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 368 transitions, 910 flow [2022-04-18 16:37:06,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 368 transitions, 906 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:37:06,574 INFO L242 Difference]: Finished difference. Result has 374 places, 0 transitions, 0 flow [2022-04-18 16:37:06,574 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=374, PETRI_TRANSITIONS=0} [2022-04-18 16:37:06,575 INFO L335 CegarLoopForPetriNet]: 419 programPoint places, -45 predicate places. [2022-04-18 16:37:06,575 INFO L478 AbstractCegarLoop]: Abstraction has has 374 places, 0 transitions, 0 flow [2022-04-18 16:37:06,575 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 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 16:37:06,577 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (100 of 101 remaining) [2022-04-18 16:37:06,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (99 of 101 remaining) [2022-04-18 16:37:06,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (98 of 101 remaining) [2022-04-18 16:37:06,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (97 of 101 remaining) [2022-04-18 16:37:06,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (96 of 101 remaining) [2022-04-18 16:37:06,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (95 of 101 remaining) [2022-04-18 16:37:06,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (94 of 101 remaining) [2022-04-18 16:37:06,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (93 of 101 remaining) [2022-04-18 16:37:06,578 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (92 of 101 remaining) [2022-04-18 16:37:06,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (91 of 101 remaining) [2022-04-18 16:37:06,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (90 of 101 remaining) [2022-04-18 16:37:06,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (89 of 101 remaining) [2022-04-18 16:37:06,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (88 of 101 remaining) [2022-04-18 16:37:06,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (87 of 101 remaining) [2022-04-18 16:37:06,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (86 of 101 remaining) [2022-04-18 16:37:06,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (85 of 101 remaining) [2022-04-18 16:37:06,579 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (84 of 101 remaining) [2022-04-18 16:37:06,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (83 of 101 remaining) [2022-04-18 16:37:06,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (82 of 101 remaining) [2022-04-18 16:37:06,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (81 of 101 remaining) [2022-04-18 16:37:06,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (80 of 101 remaining) [2022-04-18 16:37:06,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (79 of 101 remaining) [2022-04-18 16:37:06,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (78 of 101 remaining) [2022-04-18 16:37:06,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (77 of 101 remaining) [2022-04-18 16:37:06,580 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (76 of 101 remaining) [2022-04-18 16:37:06,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (75 of 101 remaining) [2022-04-18 16:37:06,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (74 of 101 remaining) [2022-04-18 16:37:06,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (73 of 101 remaining) [2022-04-18 16:37:06,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (72 of 101 remaining) [2022-04-18 16:37:06,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (71 of 101 remaining) [2022-04-18 16:37:06,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (70 of 101 remaining) [2022-04-18 16:37:06,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (69 of 101 remaining) [2022-04-18 16:37:06,581 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (68 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (67 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (66 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (65 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (64 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (63 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (62 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (61 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (60 of 101 remaining) [2022-04-18 16:37:06,582 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (59 of 101 remaining) [2022-04-18 16:37:06,583 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (58 of 101 remaining) [2022-04-18 16:37:06,583 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (57 of 101 remaining) [2022-04-18 16:37:06,583 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 101 remaining) [2022-04-18 16:37:06,583 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 101 remaining) [2022-04-18 16:37:06,583 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 101 remaining) [2022-04-18 16:37:06,583 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 101 remaining) [2022-04-18 16:37:06,583 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (52 of 101 remaining) [2022-04-18 16:37:06,583 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 101 remaining) [2022-04-18 16:37:06,584 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (50 of 101 remaining) [2022-04-18 16:37:06,584 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (49 of 101 remaining) [2022-04-18 16:37:06,584 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (48 of 101 remaining) [2022-04-18 16:37:06,584 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (47 of 101 remaining) [2022-04-18 16:37:06,584 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (46 of 101 remaining) [2022-04-18 16:37:06,584 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 101 remaining) [2022-04-18 16:37:06,584 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 101 remaining) [2022-04-18 16:37:06,584 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (43 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (42 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (41 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (40 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (39 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (38 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (37 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (36 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (35 of 101 remaining) [2022-04-18 16:37:06,585 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (34 of 101 remaining) [2022-04-18 16:37:06,586 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (33 of 101 remaining) [2022-04-18 16:37:06,586 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (32 of 101 remaining) [2022-04-18 16:37:06,586 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (31 of 101 remaining) [2022-04-18 16:37:06,586 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (30 of 101 remaining) [2022-04-18 16:37:06,586 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (29 of 101 remaining) [2022-04-18 16:37:06,586 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (28 of 101 remaining) [2022-04-18 16:37:06,586 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (27 of 101 remaining) [2022-04-18 16:37:06,586 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (26 of 101 remaining) [2022-04-18 16:37:06,587 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (25 of 101 remaining) [2022-04-18 16:37:06,587 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (24 of 101 remaining) [2022-04-18 16:37:06,587 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (23 of 101 remaining) [2022-04-18 16:37:06,587 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (22 of 101 remaining) [2022-04-18 16:37:06,587 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (21 of 101 remaining) [2022-04-18 16:37:06,587 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (20 of 101 remaining) [2022-04-18 16:37:06,587 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (19 of 101 remaining) [2022-04-18 16:37:06,587 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (18 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (17 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (16 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (15 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (14 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (13 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (12 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (11 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (10 of 101 remaining) [2022-04-18 16:37:06,588 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (9 of 101 remaining) [2022-04-18 16:37:06,589 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (8 of 101 remaining) [2022-04-18 16:37:06,589 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (7 of 101 remaining) [2022-04-18 16:37:06,589 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (6 of 101 remaining) [2022-04-18 16:37:06,589 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (5 of 101 remaining) [2022-04-18 16:37:06,589 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (4 of 101 remaining) [2022-04-18 16:37:06,589 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (3 of 101 remaining) [2022-04-18 16:37:06,589 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (2 of 101 remaining) [2022-04-18 16:37:06,589 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (1 of 101 remaining) [2022-04-18 16:37:06,590 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (0 of 101 remaining) [2022-04-18 16:37:06,590 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:37:06,593 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] [2022-04-18 16:37:06,596 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:37:06,596 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:37:06,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:37:06 BasicIcfg [2022-04-18 16:37:06,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:37:06,599 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:37:06,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:37:06,599 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:37:06,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:47" (3/4) ... [2022-04-18 16:37:06,607 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:37:06,611 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:37:06,611 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:37:06,614 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-04-18 16:37:06,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:37:06,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:37:06,615 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:37:06,638 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:37:06,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:37:06,639 INFO L158 Benchmark]: Toolchain (without parser) took 19993.48ms. Allocated memory was 151.0MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 121.2MB in the beginning and 6.3GB in the end (delta: -6.1GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-04-18 16:37:06,639 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 90.2MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:37:06,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.66ms. Allocated memory is still 151.0MB. Free memory was 120.8MB in the beginning and 118.1MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:37:06,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.73ms. Allocated memory is still 151.0MB. Free memory was 118.1MB in the beginning and 115.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:37:06,640 INFO L158 Benchmark]: Boogie Preprocessor took 37.28ms. Allocated memory is still 151.0MB. Free memory was 115.1MB in the beginning and 112.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:37:06,640 INFO L158 Benchmark]: RCFGBuilder took 584.90ms. Allocated memory is still 151.0MB. Free memory was 112.5MB in the beginning and 85.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-04-18 16:37:06,640 INFO L158 Benchmark]: TraceAbstraction took 19039.73ms. Allocated memory was 151.0MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 84.5MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-04-18 16:37:06,640 INFO L158 Benchmark]: Witness Printer took 39.83ms. Allocated memory is still 7.7GB. Free memory was 6.3GB in the beginning and 6.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:37:06,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 90.2MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.66ms. Allocated memory is still 151.0MB. Free memory was 120.8MB in the beginning and 118.1MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.73ms. Allocated memory is still 151.0MB. Free memory was 118.1MB in the beginning and 115.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.28ms. Allocated memory is still 151.0MB. Free memory was 115.1MB in the beginning and 112.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.90ms. Allocated memory is still 151.0MB. Free memory was 112.5MB in the beginning and 85.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 19039.73ms. Allocated memory was 151.0MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 84.5MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 39.83ms. Allocated memory is still 7.7GB. Free memory was 6.3GB in the beginning and 6.3GB in the end (delta: 3.1MB). 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: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: 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: 67]: 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: 69]: 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: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 708 locations, 101 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: 18.8s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 309 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 309 mSDsluCounter, 713 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 459 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2017 IncrementalHoareTripleChecker+Invalid, 2476 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 459 mSolverCounterUnsat, 661 mSDtfsCounter, 2017 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=0, InterpolantAutomatonStates: 82, 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, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 2313 NumberOfCodeBlocks, 2313 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2292 ConstructedInterpolants, 0 QuantifiedInterpolants, 3165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 55 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:37:06,672 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