./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:33:02,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:33:02,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:33:02,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:33:02,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:33:02,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:33:02,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:33:02,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:33:02,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:33:02,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:33:02,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:33:02,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:33:02,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:33:02,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:33:02,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:33:02,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:33:02,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:33:02,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:33:02,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:33:02,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:33:02,779 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:33:02,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:33:02,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:33:02,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:33:02,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:33:02,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:33:02,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:33:02,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:33:02,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:33:02,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:33:02,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:33:02,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:33:02,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:33:02,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:33:02,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:33:02,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:33:02,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:33:02,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:33:02,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:33:02,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:33:02,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:33:02,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:33:02,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:33:02,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:33:02,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:33:02,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:33:02,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:33:02,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:33:02,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:33:02,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:33:02,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:33:02,813 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:33:02,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:33:02,814 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:33:02,814 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:33:02,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:33:02,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:33:02,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:33:02,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:33:02,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:33:02,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:33:02,815 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:33:02,816 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:33:02,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:33:02,816 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:33:02,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:33:02,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:33:02,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:33:02,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:33:02,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:02,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:33:02,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:33:02,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:33:02,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:33:02,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:33:02,818 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:33:02,818 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:33:02,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:33:02,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 [2022-04-18 16:33:03,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:33:03,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:33:03,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:33:03,037 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:33:03,037 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:33:03,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c [2022-04-18 16:33:03,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f6528f4/2d0dae2232d841a39a444ca25e7c3cbb/FLAG9f0a23436 [2022-04-18 16:33:03,434 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:33:03,434 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c [2022-04-18 16:33:03,439 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f6528f4/2d0dae2232d841a39a444ca25e7c3cbb/FLAG9f0a23436 [2022-04-18 16:33:03,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6f6528f4/2d0dae2232d841a39a444ca25e7c3cbb [2022-04-18 16:33:03,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:33:03,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:33:03,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:03,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:33:03,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:33:03,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f59165d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03, skipping insertion in model container [2022-04-18 16:33:03,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:33:03,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:33:03,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-04-18 16:33:03,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:03,748 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:33:03,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2022-04-18 16:33:03,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:03,829 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:33:03,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03 WrapperNode [2022-04-18 16:33:03,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:03,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:03,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:33:03,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:33:03,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,900 INFO L137 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1305 [2022-04-18 16:33:03,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:03,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:33:03,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:33:03,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:33:03,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:33:03,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:33:03,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:33:03,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:33:03,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (1/1) ... [2022-04-18 16:33:03,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:03,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:33:03,999 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 16:33:04,005 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 16:33:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:33:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:33:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:33:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:33:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:33:04,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:33:04,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:33:04,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:33:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:33:04,029 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:33:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:33:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:33:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:33:04,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:33:04,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:33:04,031 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 16:33:04,150 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:33:04,151 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:33:05,117 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:33:05,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:33:05,133 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 16:33:05,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:05 BoogieIcfgContainer [2022-04-18 16:33:05,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:33:05,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:33:05,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:33:05,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:33:05,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:33:03" (1/3) ... [2022-04-18 16:33:05,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ff419e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:05, skipping insertion in model container [2022-04-18 16:33:05,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:03" (2/3) ... [2022-04-18 16:33:05,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ff419e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:05, skipping insertion in model container [2022-04-18 16:33:05,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:05" (3/3) ... [2022-04-18 16:33:05,167 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2022-04-18 16:33:05,186 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:33:05,186 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:33:05,186 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 228 error locations. [2022-04-18 16:33:05,186 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:33:05,340 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:33:05,378 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:33:05,383 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 16:33:05,383 INFO L341 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2022-04-18 16:33:05,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 1656 places, 1757 transitions, 3538 flow [2022-04-18 16:33:06,445 INFO L129 PetriNetUnfolder]: 111/1754 cut-off events. [2022-04-18 16:33:06,445 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:06,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1767 conditions, 1754 events. 111/1754 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7796 event pairs, 0 based on Foata normal form. 0/1415 useless extension candidates. Maximal degree in co-relation 1382. Up to 2 conditions per place. [2022-04-18 16:33:06,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 1656 places, 1757 transitions, 3538 flow [2022-04-18 16:33:06,592 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1631 places, 1730 transitions, 3478 flow [2022-04-18 16:33:06,597 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2022-04-18 16:33:06,598 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:06,598 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:06,598 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] [2022-04-18 16:33:06,599 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:06,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:06,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1570181020, now seen corresponding path program 1 times [2022-04-18 16:33:06,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:06,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019091278] [2022-04-18 16:33:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:06,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:06,786 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 16:33:06,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:06,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019091278] [2022-04-18 16:33:06,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019091278] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:06,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:06,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:06,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863666964] [2022-04-18 16:33:06,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:06,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:06,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:06,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:06,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:06,832 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-04-18 16:33:06,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1631 places, 1730 transitions, 3478 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:06,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:06,850 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-04-18 16:33:06,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:08,586 INFO L129 PetriNetUnfolder]: 145/2917 cut-off events. [2022-04-18 16:33:08,586 INFO L130 PetriNetUnfolder]: For 53/55 co-relation queries the response was YES. [2022-04-18 16:33:08,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 2917 events. 145/2917 cut-off events. For 53/55 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 18141 event pairs, 21 based on Foata normal form. 222/2566 useless extension candidates. Maximal degree in co-relation 2516. Up to 63 conditions per place. [2022-04-18 16:33:08,784 INFO L132 encePairwiseOnDemand]: 1718/1757 looper letters, 15 selfloop transitions, 2 changer transitions 6/1693 dead transitions. [2022-04-18 16:33:08,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1632 places, 1693 transitions, 3438 flow [2022-04-18 16:33:08,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:08,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5157 transitions. [2022-04-18 16:33:08,806 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9783722253841776 [2022-04-18 16:33:08,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5157 transitions. [2022-04-18 16:33:08,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5157 transitions. [2022-04-18 16:33:08,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:08,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5157 transitions. [2022-04-18 16:33:08,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1719.0) internal successors, (5157), 3 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,848 INFO L186 Difference]: Start difference. First operand has 1631 places, 1730 transitions, 3478 flow. Second operand 3 states and 5157 transitions. [2022-04-18 16:33:08,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1632 places, 1693 transitions, 3438 flow [2022-04-18 16:33:08,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1626 places, 1693 transitions, 3426 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:33:08,887 INFO L242 Difference]: Finished difference. Result has 1626 places, 1687 transitions, 3384 flow [2022-04-18 16:33:08,891 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3392, PETRI_DIFFERENCE_MINUEND_PLACES=1624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3384, PETRI_PLACES=1626, PETRI_TRANSITIONS=1687} [2022-04-18 16:33:08,894 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -5 predicate places. [2022-04-18 16:33:08,894 INFO L478 AbstractCegarLoop]: Abstraction has has 1626 places, 1687 transitions, 3384 flow [2022-04-18 16:33:08,897 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,897 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:08,897 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] [2022-04-18 16:33:08,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:33:08,897 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:08,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:08,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1234220149, now seen corresponding path program 1 times [2022-04-18 16:33:08,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:08,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205369007] [2022-04-18 16:33:08,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:08,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:08,971 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 16:33:08,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:08,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205369007] [2022-04-18 16:33:08,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205369007] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:08,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:08,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:08,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709624321] [2022-04-18 16:33:08,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:08,974 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:08,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:08,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:08,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:08,982 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-04-18 16:33:08,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1626 places, 1687 transitions, 3384 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:08,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:08,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-04-18 16:33:08,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:10,326 INFO L129 PetriNetUnfolder]: 145/2938 cut-off events. [2022-04-18 16:33:10,326 INFO L130 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-04-18 16:33:10,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3016 conditions, 2938 events. 145/2938 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 18977 event pairs, 21 based on Foata normal form. 0/2372 useless extension candidates. Maximal degree in co-relation 2967. Up to 63 conditions per place. [2022-04-18 16:33:10,456 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1686 dead transitions. [2022-04-18 16:33:10,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1621 places, 1686 transitions, 3416 flow [2022-04-18 16:33:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-04-18 16:33:10,464 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-04-18 16:33:10,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-04-18 16:33:10,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-04-18 16:33:10,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:10,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-04-18 16:33:10,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,483 INFO L186 Difference]: Start difference. First operand has 1626 places, 1687 transitions, 3384 flow. Second operand 3 states and 5121 transitions. [2022-04-18 16:33:10,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1621 places, 1686 transitions, 3416 flow [2022-04-18 16:33:10,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1619 places, 1686 transitions, 3412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:10,503 INFO L242 Difference]: Finished difference. Result has 1619 places, 1686 transitions, 3382 flow [2022-04-18 16:33:10,505 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3378, PETRI_DIFFERENCE_MINUEND_PLACES=1617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3382, PETRI_PLACES=1619, PETRI_TRANSITIONS=1686} [2022-04-18 16:33:10,505 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -12 predicate places. [2022-04-18 16:33:10,506 INFO L478 AbstractCegarLoop]: Abstraction has has 1619 places, 1686 transitions, 3382 flow [2022-04-18 16:33:10,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,508 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:10,508 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:10,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:33:10,509 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:10,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:10,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1280258702, now seen corresponding path program 1 times [2022-04-18 16:33:10,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:10,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974186049] [2022-04-18 16:33:10,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:10,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:10,552 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 16:33:10,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:10,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974186049] [2022-04-18 16:33:10,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974186049] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:10,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:10,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:10,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727403103] [2022-04-18 16:33:10,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:10,554 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:10,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:10,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:10,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:10,561 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-04-18 16:33:10,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1619 places, 1686 transitions, 3382 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:10,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:10,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-04-18 16:33:10,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:12,142 INFO L129 PetriNetUnfolder]: 209/3970 cut-off events. [2022-04-18 16:33:12,143 INFO L130 PetriNetUnfolder]: For 11/13 co-relation queries the response was YES. [2022-04-18 16:33:12,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4087 conditions, 3970 events. 209/3970 cut-off events. For 11/13 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 27680 event pairs, 39 based on Foata normal form. 0/3188 useless extension candidates. Maximal degree in co-relation 4031. Up to 90 conditions per place. [2022-04-18 16:33:12,354 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1685 dead transitions. [2022-04-18 16:33:12,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1620 places, 1685 transitions, 3414 flow [2022-04-18 16:33:12,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-04-18 16:33:12,363 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-04-18 16:33:12,363 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-04-18 16:33:12,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-04-18 16:33:12,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:12,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-04-18 16:33:12,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,386 INFO L186 Difference]: Start difference. First operand has 1619 places, 1686 transitions, 3382 flow. Second operand 3 states and 5121 transitions. [2022-04-18 16:33:12,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1620 places, 1685 transitions, 3414 flow [2022-04-18 16:33:12,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1618 places, 1685 transitions, 3410 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:12,408 INFO L242 Difference]: Finished difference. Result has 1618 places, 1685 transitions, 3380 flow [2022-04-18 16:33:12,411 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=1616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3380, PETRI_PLACES=1618, PETRI_TRANSITIONS=1685} [2022-04-18 16:33:12,413 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -13 predicate places. [2022-04-18 16:33:12,413 INFO L478 AbstractCegarLoop]: Abstraction has has 1618 places, 1685 transitions, 3380 flow [2022-04-18 16:33:12,414 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,415 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:12,416 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:12,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:33:12,416 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:12,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:12,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1121064490, now seen corresponding path program 1 times [2022-04-18 16:33:12,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:12,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159639847] [2022-04-18 16:33:12,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:12,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:12,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:12,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159639847] [2022-04-18 16:33:12,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159639847] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:12,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:12,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:12,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869365131] [2022-04-18 16:33:12,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:12,487 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:12,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:12,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:12,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:12,492 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-04-18 16:33:12,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1618 places, 1685 transitions, 3380 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:12,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:12,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-04-18 16:33:12,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:14,123 INFO L129 PetriNetUnfolder]: 209/4013 cut-off events. [2022-04-18 16:33:14,123 INFO L130 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-04-18 16:33:14,251 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4130 conditions, 4013 events. 209/4013 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 29386 event pairs, 39 based on Foata normal form. 0/3232 useless extension candidates. Maximal degree in co-relation 4067. Up to 90 conditions per place. [2022-04-18 16:33:14,308 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1684 dead transitions. [2022-04-18 16:33:14,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1619 places, 1684 transitions, 3412 flow [2022-04-18 16:33:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:14,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-04-18 16:33:14,315 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-04-18 16:33:14,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-04-18 16:33:14,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-04-18 16:33:14,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:14,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-04-18 16:33:14,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,336 INFO L186 Difference]: Start difference. First operand has 1618 places, 1685 transitions, 3380 flow. Second operand 3 states and 5121 transitions. [2022-04-18 16:33:14,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1619 places, 1684 transitions, 3412 flow [2022-04-18 16:33:14,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1617 places, 1684 transitions, 3408 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:14,362 INFO L242 Difference]: Finished difference. Result has 1617 places, 1684 transitions, 3378 flow [2022-04-18 16:33:14,364 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3374, PETRI_DIFFERENCE_MINUEND_PLACES=1615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3378, PETRI_PLACES=1617, PETRI_TRANSITIONS=1684} [2022-04-18 16:33:14,365 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -14 predicate places. [2022-04-18 16:33:14,366 INFO L478 AbstractCegarLoop]: Abstraction has has 1617 places, 1684 transitions, 3378 flow [2022-04-18 16:33:14,367 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,367 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:14,368 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:14,368 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:33:14,368 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:14,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:14,369 INFO L85 PathProgramCache]: Analyzing trace with hash -993125539, now seen corresponding path program 1 times [2022-04-18 16:33:14,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:14,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65937516] [2022-04-18 16:33:14,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:14,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:14,422 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 16:33:14,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:14,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65937516] [2022-04-18 16:33:14,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65937516] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:14,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:14,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:14,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232553749] [2022-04-18 16:33:14,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:14,424 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:14,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:14,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:14,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:14,429 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-04-18 16:33:14,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1617 places, 1684 transitions, 3378 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:14,432 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:14,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-04-18 16:33:14,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:15,483 INFO L129 PetriNetUnfolder]: 140/2622 cut-off events. [2022-04-18 16:33:15,483 INFO L130 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-04-18 16:33:15,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2724 conditions, 2622 events. 140/2622 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 16116 event pairs, 39 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 2654. Up to 90 conditions per place. [2022-04-18 16:33:15,614 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1683 dead transitions. [2022-04-18 16:33:15,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1618 places, 1683 transitions, 3410 flow [2022-04-18 16:33:15,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:15,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-04-18 16:33:15,622 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-04-18 16:33:15,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-04-18 16:33:15,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-04-18 16:33:15,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:15,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-04-18 16:33:15,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:15,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:15,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:15,635 INFO L186 Difference]: Start difference. First operand has 1617 places, 1684 transitions, 3378 flow. Second operand 3 states and 5121 transitions. [2022-04-18 16:33:15,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1618 places, 1683 transitions, 3410 flow [2022-04-18 16:33:15,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 1683 transitions, 3406 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:15,655 INFO L242 Difference]: Finished difference. Result has 1616 places, 1683 transitions, 3376 flow [2022-04-18 16:33:15,656 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3372, PETRI_DIFFERENCE_MINUEND_PLACES=1614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3376, PETRI_PLACES=1616, PETRI_TRANSITIONS=1683} [2022-04-18 16:33:15,657 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -15 predicate places. [2022-04-18 16:33:15,657 INFO L478 AbstractCegarLoop]: Abstraction has has 1616 places, 1683 transitions, 3376 flow [2022-04-18 16:33:15,658 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:15,658 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:15,659 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:15,659 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:33:15,659 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:15,659 INFO L85 PathProgramCache]: Analyzing trace with hash -154212185, now seen corresponding path program 1 times [2022-04-18 16:33:15,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:15,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500621649] [2022-04-18 16:33:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:15,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:15,687 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 16:33:15,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:15,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500621649] [2022-04-18 16:33:15,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500621649] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:15,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:15,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:15,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783420534] [2022-04-18 16:33:15,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:15,689 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:15,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:15,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:15,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:15,693 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1701 out of 1757 [2022-04-18 16:33:15,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1616 places, 1683 transitions, 3376 flow. Second operand has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:15,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:15,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1701 of 1757 [2022-04-18 16:33:15,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:16,786 INFO L129 PetriNetUnfolder]: 140/2665 cut-off events. [2022-04-18 16:33:16,786 INFO L130 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-04-18 16:33:16,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 2665 events. 140/2665 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 16919 event pairs, 39 based on Foata normal form. 0/2188 useless extension candidates. Maximal degree in co-relation 2690. Up to 90 conditions per place. [2022-04-18 16:33:16,985 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 15 selfloop transitions, 2 changer transitions 0/1682 dead transitions. [2022-04-18 16:33:16,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1617 places, 1682 transitions, 3408 flow [2022-04-18 16:33:16,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:16,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:16,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5121 transitions. [2022-04-18 16:33:16,994 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9715424018212863 [2022-04-18 16:33:16,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5121 transitions. [2022-04-18 16:33:16,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5121 transitions. [2022-04-18 16:33:16,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:16,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5121 transitions. [2022-04-18 16:33:17,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1707.0) internal successors, (5121), 3 states have internal predecessors, (5121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:17,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:17,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:17,010 INFO L186 Difference]: Start difference. First operand has 1616 places, 1683 transitions, 3376 flow. Second operand 3 states and 5121 transitions. [2022-04-18 16:33:17,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1617 places, 1682 transitions, 3408 flow [2022-04-18 16:33:17,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1615 places, 1682 transitions, 3404 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:17,031 INFO L242 Difference]: Finished difference. Result has 1615 places, 1682 transitions, 3374 flow [2022-04-18 16:33:17,033 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3370, PETRI_DIFFERENCE_MINUEND_PLACES=1613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3374, PETRI_PLACES=1615, PETRI_TRANSITIONS=1682} [2022-04-18 16:33:17,033 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -16 predicate places. [2022-04-18 16:33:17,034 INFO L478 AbstractCegarLoop]: Abstraction has has 1615 places, 1682 transitions, 3374 flow [2022-04-18 16:33:17,035 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1702.3333333333333) internal successors, (5107), 3 states have internal predecessors, (5107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:17,035 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:17,035 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] [2022-04-18 16:33:17,035 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:33:17,036 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash -353115619, now seen corresponding path program 1 times [2022-04-18 16:33:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:17,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679726872] [2022-04-18 16:33:17,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:17,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:17,057 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 16:33:17,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:17,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679726872] [2022-04-18 16:33:17,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679726872] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:17,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:17,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:17,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341297829] [2022-04-18 16:33:17,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:17,059 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:17,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:17,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:17,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:17,064 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-04-18 16:33:17,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1615 places, 1682 transitions, 3374 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:17,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:17,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-04-18 16:33:17,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:19,760 INFO L129 PetriNetUnfolder]: 349/5993 cut-off events. [2022-04-18 16:33:19,760 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:20,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6210 conditions, 5993 events. 349/5993 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 49292 event pairs, 54 based on Foata normal form. 0/4732 useless extension candidates. Maximal degree in co-relation 6126. Up to 154 conditions per place. [2022-04-18 16:33:20,234 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 39 selfloop transitions, 2 changer transitions 0/1681 dead transitions. [2022-04-18 16:33:20,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1616 places, 1681 transitions, 3454 flow [2022-04-18 16:33:20,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5073 transitions. [2022-04-18 16:33:20,242 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9624359704040979 [2022-04-18 16:33:20,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5073 transitions. [2022-04-18 16:33:20,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5073 transitions. [2022-04-18 16:33:20,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:20,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5073 transitions. [2022-04-18 16:33:20,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1691.0) internal successors, (5073), 3 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:20,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:20,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:20,257 INFO L186 Difference]: Start difference. First operand has 1615 places, 1682 transitions, 3374 flow. Second operand 3 states and 5073 transitions. [2022-04-18 16:33:20,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1616 places, 1681 transitions, 3454 flow [2022-04-18 16:33:20,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1614 places, 1681 transitions, 3450 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:20,282 INFO L242 Difference]: Finished difference. Result has 1614 places, 1681 transitions, 3372 flow [2022-04-18 16:33:20,285 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=1612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3372, PETRI_PLACES=1614, PETRI_TRANSITIONS=1681} [2022-04-18 16:33:20,285 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -17 predicate places. [2022-04-18 16:33:20,286 INFO L478 AbstractCegarLoop]: Abstraction has has 1614 places, 1681 transitions, 3372 flow [2022-04-18 16:33:20,287 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:20,287 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:20,288 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] [2022-04-18 16:33:20,288 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:33:20,288 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:20,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1165525904, now seen corresponding path program 1 times [2022-04-18 16:33:20,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:20,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669218641] [2022-04-18 16:33:20,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:20,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:20,311 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 16:33:20,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:20,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669218641] [2022-04-18 16:33:20,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669218641] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:20,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:20,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:20,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27372788] [2022-04-18 16:33:20,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:20,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:20,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:20,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:20,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:20,318 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-04-18 16:33:20,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1614 places, 1681 transitions, 3372 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:20,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:20,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-04-18 16:33:20,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:21,860 INFO L129 PetriNetUnfolder]: 242/3331 cut-off events. [2022-04-18 16:33:21,861 INFO L130 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-04-18 16:33:22,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3666 conditions, 3331 events. 242/3331 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 23121 event pairs, 90 based on Foata normal form. 0/2666 useless extension candidates. Maximal degree in co-relation 3575. Up to 236 conditions per place. [2022-04-18 16:33:22,123 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1680 dead transitions. [2022-04-18 16:33:22,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1615 places, 1680 transitions, 3482 flow [2022-04-18 16:33:22,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:22,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:22,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-04-18 16:33:22,130 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-04-18 16:33:22,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-04-18 16:33:22,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-04-18 16:33:22,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:22,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-04-18 16:33:22,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,142 INFO L186 Difference]: Start difference. First operand has 1614 places, 1681 transitions, 3372 flow. Second operand 3 states and 5043 transitions. [2022-04-18 16:33:22,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1615 places, 1680 transitions, 3482 flow [2022-04-18 16:33:22,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1613 places, 1680 transitions, 3478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:22,163 INFO L242 Difference]: Finished difference. Result has 1613 places, 1680 transitions, 3370 flow [2022-04-18 16:33:22,165 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3366, PETRI_DIFFERENCE_MINUEND_PLACES=1611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3370, PETRI_PLACES=1613, PETRI_TRANSITIONS=1680} [2022-04-18 16:33:22,166 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -18 predicate places. [2022-04-18 16:33:22,166 INFO L478 AbstractCegarLoop]: Abstraction has has 1613 places, 1680 transitions, 3370 flow [2022-04-18 16:33:22,167 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,167 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:22,167 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 16:33:22,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:33:22,168 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:22,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:22,168 INFO L85 PathProgramCache]: Analyzing trace with hash 902807769, now seen corresponding path program 1 times [2022-04-18 16:33:22,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:22,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793225042] [2022-04-18 16:33:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:22,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:22,188 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 16:33:22,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:22,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793225042] [2022-04-18 16:33:22,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793225042] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:22,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:22,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:22,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809299815] [2022-04-18 16:33:22,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:22,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:22,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:22,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:22,195 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-04-18 16:33:22,197 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1613 places, 1680 transitions, 3370 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,197 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:22,197 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-04-18 16:33:22,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:24,296 INFO L129 PetriNetUnfolder]: 257/4235 cut-off events. [2022-04-18 16:33:24,297 INFO L130 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-04-18 16:33:24,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4425 conditions, 4235 events. 257/4235 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 31224 event pairs, 54 based on Foata normal form. 0/3359 useless extension candidates. Maximal degree in co-relation 4327. Up to 154 conditions per place. [2022-04-18 16:33:24,587 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 39 selfloop transitions, 2 changer transitions 0/1679 dead transitions. [2022-04-18 16:33:24,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1614 places, 1679 transitions, 3450 flow [2022-04-18 16:33:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:24,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5073 transitions. [2022-04-18 16:33:24,593 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9624359704040979 [2022-04-18 16:33:24,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5073 transitions. [2022-04-18 16:33:24,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5073 transitions. [2022-04-18 16:33:24,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:24,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5073 transitions. [2022-04-18 16:33:24,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1691.0) internal successors, (5073), 3 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,603 INFO L186 Difference]: Start difference. First operand has 1613 places, 1680 transitions, 3370 flow. Second operand 3 states and 5073 transitions. [2022-04-18 16:33:24,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1614 places, 1679 transitions, 3450 flow [2022-04-18 16:33:24,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1612 places, 1679 transitions, 3446 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:24,622 INFO L242 Difference]: Finished difference. Result has 1612 places, 1679 transitions, 3368 flow [2022-04-18 16:33:24,624 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3364, PETRI_DIFFERENCE_MINUEND_PLACES=1610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3368, PETRI_PLACES=1612, PETRI_TRANSITIONS=1679} [2022-04-18 16:33:24,624 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -19 predicate places. [2022-04-18 16:33:24,624 INFO L478 AbstractCegarLoop]: Abstraction has has 1612 places, 1679 transitions, 3368 flow [2022-04-18 16:33:24,625 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,625 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:24,625 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] [2022-04-18 16:33:24,625 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:33:24,625 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:24,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:24,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1204950775, now seen corresponding path program 1 times [2022-04-18 16:33:24,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:24,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052366368] [2022-04-18 16:33:24,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:24,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:24,644 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 16:33:24,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:24,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052366368] [2022-04-18 16:33:24,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052366368] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:24,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:24,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334212145] [2022-04-18 16:33:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:24,646 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:24,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:24,650 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-04-18 16:33:24,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1612 places, 1679 transitions, 3368 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:24,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-04-18 16:33:24,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:25,938 INFO L129 PetriNetUnfolder]: 219/2890 cut-off events. [2022-04-18 16:33:25,939 INFO L130 PetriNetUnfolder]: For 49/57 co-relation queries the response was YES. [2022-04-18 16:33:26,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3180 conditions, 2890 events. 219/2890 cut-off events. For 49/57 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 20532 event pairs, 90 based on Foata normal form. 0/2324 useless extension candidates. Maximal degree in co-relation 3075. Up to 236 conditions per place. [2022-04-18 16:33:26,228 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1678 dead transitions. [2022-04-18 16:33:26,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1613 places, 1678 transitions, 3478 flow [2022-04-18 16:33:26,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:26,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-04-18 16:33:26,235 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-04-18 16:33:26,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-04-18 16:33:26,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-04-18 16:33:26,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:26,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-04-18 16:33:26,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:26,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:26,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:26,243 INFO L186 Difference]: Start difference. First operand has 1612 places, 1679 transitions, 3368 flow. Second operand 3 states and 5043 transitions. [2022-04-18 16:33:26,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1613 places, 1678 transitions, 3478 flow [2022-04-18 16:33:26,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1611 places, 1678 transitions, 3474 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:26,267 INFO L242 Difference]: Finished difference. Result has 1611 places, 1678 transitions, 3366 flow [2022-04-18 16:33:26,269 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3362, PETRI_DIFFERENCE_MINUEND_PLACES=1609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3366, PETRI_PLACES=1611, PETRI_TRANSITIONS=1678} [2022-04-18 16:33:26,269 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -20 predicate places. [2022-04-18 16:33:26,270 INFO L478 AbstractCegarLoop]: Abstraction has has 1611 places, 1678 transitions, 3366 flow [2022-04-18 16:33:26,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:26,271 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:26,271 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] [2022-04-18 16:33:26,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:33:26,271 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:26,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:26,272 INFO L85 PathProgramCache]: Analyzing trace with hash -690707289, now seen corresponding path program 1 times [2022-04-18 16:33:26,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:26,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909256374] [2022-04-18 16:33:26,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:26,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:26,291 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 16:33:26,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:26,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909256374] [2022-04-18 16:33:26,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909256374] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:26,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:26,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:26,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66946177] [2022-04-18 16:33:26,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:26,292 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:26,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:26,296 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1677 out of 1757 [2022-04-18 16:33:26,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1611 places, 1678 transitions, 3366 flow. Second operand has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:26,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:26,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1677 of 1757 [2022-04-18 16:33:26,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:27,137 INFO L129 PetriNetUnfolder]: 165/2461 cut-off events. [2022-04-18 16:33:27,138 INFO L130 PetriNetUnfolder]: For 57/59 co-relation queries the response was YES. [2022-04-18 16:33:27,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 2461 events. 165/2461 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 14432 event pairs, 54 based on Foata normal form. 0/1979 useless extension candidates. Maximal degree in co-relation 2511. Up to 153 conditions per place. [2022-04-18 16:33:27,301 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 38 selfloop transitions, 2 changer transitions 0/1677 dead transitions. [2022-04-18 16:33:27,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1612 places, 1677 transitions, 3444 flow [2022-04-18 16:33:27,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:27,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5072 transitions. [2022-04-18 16:33:27,307 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9622462530829065 [2022-04-18 16:33:27,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5072 transitions. [2022-04-18 16:33:27,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5072 transitions. [2022-04-18 16:33:27,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:27,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5072 transitions. [2022-04-18 16:33:27,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1690.6666666666667) internal successors, (5072), 3 states have internal predecessors, (5072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:27,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:27,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:27,315 INFO L186 Difference]: Start difference. First operand has 1611 places, 1678 transitions, 3366 flow. Second operand 3 states and 5072 transitions. [2022-04-18 16:33:27,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1612 places, 1677 transitions, 3444 flow [2022-04-18 16:33:27,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1610 places, 1677 transitions, 3440 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:27,335 INFO L242 Difference]: Finished difference. Result has 1610 places, 1677 transitions, 3364 flow [2022-04-18 16:33:27,336 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3360, PETRI_DIFFERENCE_MINUEND_PLACES=1608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1675, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3364, PETRI_PLACES=1610, PETRI_TRANSITIONS=1677} [2022-04-18 16:33:27,337 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -21 predicate places. [2022-04-18 16:33:27,337 INFO L478 AbstractCegarLoop]: Abstraction has has 1610 places, 1677 transitions, 3364 flow [2022-04-18 16:33:27,338 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1678.3333333333333) internal successors, (5035), 3 states have internal predecessors, (5035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:27,338 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:27,338 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] [2022-04-18 16:33:27,338 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:33:27,338 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:27,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:27,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1492992374, now seen corresponding path program 1 times [2022-04-18 16:33:27,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:27,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543473339] [2022-04-18 16:33:27,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:27,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:27,357 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 16:33:27,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:27,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543473339] [2022-04-18 16:33:27,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543473339] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:27,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:27,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:27,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335340015] [2022-04-18 16:33:27,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:27,359 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:27,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:27,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:27,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:27,363 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1662 out of 1757 [2022-04-18 16:33:27,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1610 places, 1677 transitions, 3364 flow. Second operand has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:27,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:27,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1662 of 1757 [2022-04-18 16:33:27,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:28,250 INFO L129 PetriNetUnfolder]: 196/2429 cut-off events. [2022-04-18 16:33:28,250 INFO L130 PetriNetUnfolder]: For 94/96 co-relation queries the response was YES. [2022-04-18 16:33:28,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2674 conditions, 2429 events. 196/2429 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 16890 event pairs, 90 based on Foata normal form. 0/1964 useless extension candidates. Maximal degree in co-relation 2555. Up to 236 conditions per place. [2022-04-18 16:33:28,412 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 54 selfloop transitions, 2 changer transitions 0/1676 dead transitions. [2022-04-18 16:33:28,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1611 places, 1676 transitions, 3474 flow [2022-04-18 16:33:28,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:28,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:28,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5043 transitions. [2022-04-18 16:33:28,418 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9567444507683551 [2022-04-18 16:33:28,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5043 transitions. [2022-04-18 16:33:28,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5043 transitions. [2022-04-18 16:33:28,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:28,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5043 transitions. [2022-04-18 16:33:28,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1681.0) internal successors, (5043), 3 states have internal predecessors, (5043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:28,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:28,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:28,435 INFO L186 Difference]: Start difference. First operand has 1610 places, 1677 transitions, 3364 flow. Second operand 3 states and 5043 transitions. [2022-04-18 16:33:28,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1611 places, 1676 transitions, 3474 flow [2022-04-18 16:33:28,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1609 places, 1676 transitions, 3470 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:28,454 INFO L242 Difference]: Finished difference. Result has 1609 places, 1676 transitions, 3362 flow [2022-04-18 16:33:28,455 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3358, PETRI_DIFFERENCE_MINUEND_PLACES=1607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3362, PETRI_PLACES=1609, PETRI_TRANSITIONS=1676} [2022-04-18 16:33:28,455 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -22 predicate places. [2022-04-18 16:33:28,456 INFO L478 AbstractCegarLoop]: Abstraction has has 1609 places, 1676 transitions, 3362 flow [2022-04-18 16:33:28,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1663.3333333333333) internal successors, (4990), 3 states have internal predecessors, (4990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:28,456 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:28,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:28,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:33:28,457 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:28,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:28,457 INFO L85 PathProgramCache]: Analyzing trace with hash -2086153921, now seen corresponding path program 1 times [2022-04-18 16:33:28,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:28,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694732547] [2022-04-18 16:33:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:28,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:28,476 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 16:33:28,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:28,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694732547] [2022-04-18 16:33:28,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694732547] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:28,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:28,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:28,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600830895] [2022-04-18 16:33:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:28,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:28,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:28,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:28,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:28,482 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-04-18 16:33:28,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1609 places, 1676 transitions, 3362 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:28,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:28,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-04-18 16:33:28,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:32,148 INFO L129 PetriNetUnfolder]: 661/9322 cut-off events. [2022-04-18 16:33:32,148 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-04-18 16:33:32,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9783 conditions, 9322 events. 661/9322 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 91885 event pairs, 192 based on Foata normal form. 0/7323 useless extension candidates. Maximal degree in co-relation 9657. Up to 428 conditions per place. [2022-04-18 16:33:32,946 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 33 selfloop transitions, 2 changer transitions 0/1675 dead transitions. [2022-04-18 16:33:32,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1610 places, 1675 transitions, 3430 flow [2022-04-18 16:33:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-04-18 16:33:32,960 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.964712578258395 [2022-04-18 16:33:32,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-04-18 16:33:32,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-04-18 16:33:32,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:32,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-04-18 16:33:32,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:32,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:32,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:32,967 INFO L186 Difference]: Start difference. First operand has 1609 places, 1676 transitions, 3362 flow. Second operand 3 states and 5085 transitions. [2022-04-18 16:33:32,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1610 places, 1675 transitions, 3430 flow [2022-04-18 16:33:32,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1608 places, 1675 transitions, 3426 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:32,985 INFO L242 Difference]: Finished difference. Result has 1608 places, 1675 transitions, 3360 flow [2022-04-18 16:33:32,986 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3356, PETRI_DIFFERENCE_MINUEND_PLACES=1606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1673, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3360, PETRI_PLACES=1608, PETRI_TRANSITIONS=1675} [2022-04-18 16:33:32,987 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -23 predicate places. [2022-04-18 16:33:32,987 INFO L478 AbstractCegarLoop]: Abstraction has has 1608 places, 1675 transitions, 3360 flow [2022-04-18 16:33:32,988 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:32,988 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:32,988 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] [2022-04-18 16:33:32,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:33:32,988 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:32,989 INFO L85 PathProgramCache]: Analyzing trace with hash 463280671, now seen corresponding path program 1 times [2022-04-18 16:33:32,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:32,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122146] [2022-04-18 16:33:32,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:32,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:33,013 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 16:33:33,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:33,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122146] [2022-04-18 16:33:33,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122146] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:33,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:33,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:33,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378946148] [2022-04-18 16:33:33,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:33,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:33,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:33,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:33,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:33,018 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-04-18 16:33:33,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1608 places, 1675 transitions, 3360 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:33,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:33,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-04-18 16:33:33,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:37,691 INFO L129 PetriNetUnfolder]: 1279/15206 cut-off events. [2022-04-18 16:33:37,691 INFO L130 PetriNetUnfolder]: For 33/47 co-relation queries the response was YES. [2022-04-18 16:33:38,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16315 conditions, 15206 events. 1279/15206 cut-off events. For 33/47 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 174601 event pairs, 480 based on Foata normal form. 0/11886 useless extension candidates. Maximal degree in co-relation 16183. Up to 920 conditions per place. [2022-04-18 16:33:38,458 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 33 selfloop transitions, 2 changer transitions 0/1674 dead transitions. [2022-04-18 16:33:38,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1609 places, 1674 transitions, 3428 flow [2022-04-18 16:33:38,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:38,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:38,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-04-18 16:33:38,462 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.964712578258395 [2022-04-18 16:33:38,462 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-04-18 16:33:38,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-04-18 16:33:38,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:38,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-04-18 16:33:38,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:38,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:38,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:38,468 INFO L186 Difference]: Start difference. First operand has 1608 places, 1675 transitions, 3360 flow. Second operand 3 states and 5085 transitions. [2022-04-18 16:33:38,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1609 places, 1674 transitions, 3428 flow [2022-04-18 16:33:38,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1607 places, 1674 transitions, 3424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:38,485 INFO L242 Difference]: Finished difference. Result has 1607 places, 1674 transitions, 3358 flow [2022-04-18 16:33:38,486 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3354, PETRI_DIFFERENCE_MINUEND_PLACES=1605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3358, PETRI_PLACES=1607, PETRI_TRANSITIONS=1674} [2022-04-18 16:33:38,486 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -24 predicate places. [2022-04-18 16:33:38,486 INFO L478 AbstractCegarLoop]: Abstraction has has 1607 places, 1674 transitions, 3358 flow [2022-04-18 16:33:38,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:38,487 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:38,487 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] [2022-04-18 16:33:38,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:33:38,488 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash 610025969, now seen corresponding path program 1 times [2022-04-18 16:33:38,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:38,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604929508] [2022-04-18 16:33:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:38,506 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 16:33:38,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:38,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604929508] [2022-04-18 16:33:38,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604929508] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:38,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:38,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:38,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64907607] [2022-04-18 16:33:38,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:38,507 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:38,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:38,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:38,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:38,511 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1757 [2022-04-18 16:33:38,512 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1607 places, 1674 transitions, 3358 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:38,512 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:38,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1757 [2022-04-18 16:33:38,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:43,981 INFO L129 PetriNetUnfolder]: 1213/14081 cut-off events. [2022-04-18 16:33:43,981 INFO L130 PetriNetUnfolder]: For 197/344 co-relation queries the response was YES. [2022-04-18 16:33:44,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15062 conditions, 14081 events. 1213/14081 cut-off events. For 197/344 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 157296 event pairs, 480 based on Foata normal form. 0/11089 useless extension candidates. Maximal degree in co-relation 14924. Up to 960 conditions per place. [2022-04-18 16:33:44,839 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 33 selfloop transitions, 2 changer transitions 0/1673 dead transitions. [2022-04-18 16:33:44,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1608 places, 1673 transitions, 3426 flow [2022-04-18 16:33:44,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:44,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:44,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-04-18 16:33:44,843 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.964712578258395 [2022-04-18 16:33:44,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-04-18 16:33:44,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-04-18 16:33:44,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:44,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-04-18 16:33:44,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:44,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:44,851 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:44,851 INFO L186 Difference]: Start difference. First operand has 1607 places, 1674 transitions, 3358 flow. Second operand 3 states and 5085 transitions. [2022-04-18 16:33:44,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1608 places, 1673 transitions, 3426 flow [2022-04-18 16:33:44,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1606 places, 1673 transitions, 3422 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:44,868 INFO L242 Difference]: Finished difference. Result has 1606 places, 1673 transitions, 3356 flow [2022-04-18 16:33:44,869 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3352, PETRI_DIFFERENCE_MINUEND_PLACES=1604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1671, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3356, PETRI_PLACES=1606, PETRI_TRANSITIONS=1673} [2022-04-18 16:33:44,869 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -25 predicate places. [2022-04-18 16:33:44,870 INFO L478 AbstractCegarLoop]: Abstraction has has 1606 places, 1673 transitions, 3356 flow [2022-04-18 16:33:44,870 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:44,870 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:44,871 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:44,871 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:33:44,871 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:44,871 INFO L85 PathProgramCache]: Analyzing trace with hash 176534002, now seen corresponding path program 1 times [2022-04-18 16:33:44,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:44,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105591170] [2022-04-18 16:33:44,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:44,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:44,896 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 16:33:44,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:44,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105591170] [2022-04-18 16:33:44,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105591170] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:44,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:44,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:44,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379214540] [2022-04-18 16:33:44,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:44,899 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:44,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:44,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:44,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:44,903 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1665 out of 1757 [2022-04-18 16:33:44,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1606 places, 1673 transitions, 3356 flow. Second operand has 3 states, 3 states have (on average 1666.3333333333333) internal successors, (4999), 3 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:44,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:44,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1665 of 1757 [2022-04-18 16:33:44,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:46,119 INFO L129 PetriNetUnfolder]: 236/3305 cut-off events. [2022-04-18 16:33:46,119 INFO L130 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-04-18 16:33:46,217 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3619 conditions, 3305 events. 236/3305 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 22672 event pairs, 84 based on Foata normal form. 0/2650 useless extension candidates. Maximal degree in co-relation 3475. Up to 221 conditions per place. [2022-04-18 16:33:46,263 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 51 selfloop transitions, 2 changer transitions 0/1672 dead transitions. [2022-04-18 16:33:46,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1607 places, 1672 transitions, 3460 flow [2022-04-18 16:33:46,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:46,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5049 transitions. [2022-04-18 16:33:46,267 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9578827546955037 [2022-04-18 16:33:46,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5049 transitions. [2022-04-18 16:33:46,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5049 transitions. [2022-04-18 16:33:46,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:46,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5049 transitions. [2022-04-18 16:33:46,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1683.0) internal successors, (5049), 3 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:46,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:46,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:46,274 INFO L186 Difference]: Start difference. First operand has 1606 places, 1673 transitions, 3356 flow. Second operand 3 states and 5049 transitions. [2022-04-18 16:33:46,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1607 places, 1672 transitions, 3460 flow [2022-04-18 16:33:46,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1605 places, 1672 transitions, 3456 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:46,292 INFO L242 Difference]: Finished difference. Result has 1605 places, 1672 transitions, 3354 flow [2022-04-18 16:33:46,294 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3350, PETRI_DIFFERENCE_MINUEND_PLACES=1603, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3354, PETRI_PLACES=1605, PETRI_TRANSITIONS=1672} [2022-04-18 16:33:46,294 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -26 predicate places. [2022-04-18 16:33:46,294 INFO L478 AbstractCegarLoop]: Abstraction has has 1605 places, 1672 transitions, 3354 flow [2022-04-18 16:33:46,295 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1666.3333333333333) internal successors, (4999), 3 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:46,295 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:46,295 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] [2022-04-18 16:33:46,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:33:46,296 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:46,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:46,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1495327468, now seen corresponding path program 1 times [2022-04-18 16:33:46,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:46,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026746336] [2022-04-18 16:33:46,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:46,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:46,314 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 16:33:46,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:46,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026746336] [2022-04-18 16:33:46,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026746336] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:46,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:46,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:46,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929840198] [2022-04-18 16:33:46,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:46,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:46,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:46,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:46,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:46,319 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1665 out of 1757 [2022-04-18 16:33:46,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1605 places, 1672 transitions, 3354 flow. Second operand has 3 states, 3 states have (on average 1666.3333333333333) internal successors, (4999), 3 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:46,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:46,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1665 of 1757 [2022-04-18 16:33:46,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:47,600 INFO L129 PetriNetUnfolder]: 213/2865 cut-off events. [2022-04-18 16:33:47,600 INFO L130 PetriNetUnfolder]: For 46/51 co-relation queries the response was YES. [2022-04-18 16:33:47,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3137 conditions, 2865 events. 213/2865 cut-off events. For 46/51 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 19956 event pairs, 84 based on Foata normal form. 0/2308 useless extension candidates. Maximal degree in co-relation 2987. Up to 221 conditions per place. [2022-04-18 16:33:47,772 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 51 selfloop transitions, 2 changer transitions 0/1671 dead transitions. [2022-04-18 16:33:47,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1606 places, 1671 transitions, 3458 flow [2022-04-18 16:33:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:47,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5049 transitions. [2022-04-18 16:33:47,775 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9578827546955037 [2022-04-18 16:33:47,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5049 transitions. [2022-04-18 16:33:47,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5049 transitions. [2022-04-18 16:33:47,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:47,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5049 transitions. [2022-04-18 16:33:47,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1683.0) internal successors, (5049), 3 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,782 INFO L186 Difference]: Start difference. First operand has 1605 places, 1672 transitions, 3354 flow. Second operand 3 states and 5049 transitions. [2022-04-18 16:33:47,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1606 places, 1671 transitions, 3458 flow [2022-04-18 16:33:47,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1604 places, 1671 transitions, 3454 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:47,799 INFO L242 Difference]: Finished difference. Result has 1604 places, 1671 transitions, 3352 flow [2022-04-18 16:33:47,800 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3348, PETRI_DIFFERENCE_MINUEND_PLACES=1602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3352, PETRI_PLACES=1604, PETRI_TRANSITIONS=1671} [2022-04-18 16:33:47,800 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -27 predicate places. [2022-04-18 16:33:47,801 INFO L478 AbstractCegarLoop]: Abstraction has has 1604 places, 1671 transitions, 3352 flow [2022-04-18 16:33:47,801 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1666.3333333333333) internal successors, (4999), 3 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,801 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:47,801 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:47,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:33:47,802 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:47,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1994741535, now seen corresponding path program 1 times [2022-04-18 16:33:47,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:47,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485402669] [2022-04-18 16:33:47,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:47,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:47,846 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 16:33:47,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:47,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485402669] [2022-04-18 16:33:47,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485402669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:47,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:47,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:47,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601437848] [2022-04-18 16:33:47,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:47,847 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:47,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:47,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:47,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:47,851 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1665 out of 1757 [2022-04-18 16:33:47,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1604 places, 1671 transitions, 3352 flow. Second operand has 3 states, 3 states have (on average 1666.3333333333333) internal successors, (4999), 3 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:47,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1665 of 1757 [2022-04-18 16:33:47,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:48,769 INFO L129 PetriNetUnfolder]: 190/2421 cut-off events. [2022-04-18 16:33:48,769 INFO L130 PetriNetUnfolder]: For 88/90 co-relation queries the response was YES. [2022-04-18 16:33:48,866 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2651 conditions, 2421 events. 190/2421 cut-off events. For 88/90 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 16720 event pairs, 84 based on Foata normal form. 0/1963 useless extension candidates. Maximal degree in co-relation 2495. Up to 221 conditions per place. [2022-04-18 16:33:48,912 INFO L132 encePairwiseOnDemand]: 1754/1757 looper letters, 51 selfloop transitions, 2 changer transitions 0/1670 dead transitions. [2022-04-18 16:33:48,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1605 places, 1670 transitions, 3456 flow [2022-04-18 16:33:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5049 transitions. [2022-04-18 16:33:48,915 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9578827546955037 [2022-04-18 16:33:48,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5049 transitions. [2022-04-18 16:33:48,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5049 transitions. [2022-04-18 16:33:48,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:48,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5049 transitions. [2022-04-18 16:33:48,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1683.0) internal successors, (5049), 3 states have internal predecessors, (5049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,922 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1757.0) internal successors, (7028), 4 states have internal predecessors, (7028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,922 INFO L186 Difference]: Start difference. First operand has 1604 places, 1671 transitions, 3352 flow. Second operand 3 states and 5049 transitions. [2022-04-18 16:33:48,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1605 places, 1670 transitions, 3456 flow [2022-04-18 16:33:48,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1603 places, 1670 transitions, 3452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:49,040 INFO L242 Difference]: Finished difference. Result has 1603 places, 1670 transitions, 3350 flow [2022-04-18 16:33:49,041 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=1757, PETRI_DIFFERENCE_MINUEND_FLOW=3346, PETRI_DIFFERENCE_MINUEND_PLACES=1601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1668, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3350, PETRI_PLACES=1603, PETRI_TRANSITIONS=1670} [2022-04-18 16:33:49,041 INFO L335 CegarLoopForPetriNet]: 1631 programPoint places, -28 predicate places. [2022-04-18 16:33:49,041 INFO L478 AbstractCegarLoop]: Abstraction has has 1603 places, 1670 transitions, 3350 flow [2022-04-18 16:33:49,042 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1666.3333333333333) internal successors, (4999), 3 states have internal predecessors, (4999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:49,042 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:49,042 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] [2022-04-18 16:33:49,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:33:49,042 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2022-04-18 16:33:49,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:49,043 INFO L85 PathProgramCache]: Analyzing trace with hash -820565744, now seen corresponding path program 1 times [2022-04-18 16:33:49,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:49,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619367921] [2022-04-18 16:33:49,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:49,080 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 16:33:49,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:49,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619367921] [2022-04-18 16:33:49,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619367921] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:49,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:49,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:49,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891534532] [2022-04-18 16:33:49,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:49,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:49,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:49,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:49,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:49,087 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 1581 out of 1757 [2022-04-18 16:33:49,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1603 places, 1670 transitions, 3350 flow. Second operand has 3 states, 3 states have (on average 1583.6666666666667) internal successors, (4751), 3 states have internal predecessors, (4751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:49,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:49,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1581 of 1757 [2022-04-18 16:33:49,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand