./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-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-chromosome-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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:32:16,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:32:16,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:32:16,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:32:16,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:32:16,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:32:16,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:32:16,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:32:16,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:32:16,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:32:16,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:32:16,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:32:16,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:32:16,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:32:16,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:32:16,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:32:16,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:32:16,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:32:16,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:32:16,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:32:16,850 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:32:16,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:32:16,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:32:16,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:32:16,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:32:16,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:32:16,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:32:16,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:32:16,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:32:16,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:32:16,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:32:16,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:32:16,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:32:16,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:32:16,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:32:16,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:32:16,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:32:16,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:32:16,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:32:16,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:32:16,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:32:16,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:32:16,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:32:16,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:32:16,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:32:16,890 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:32:16,891 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:32:16,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:32:16,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:32:16,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:32:16,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:32:16,892 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:32:16,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:32:16,893 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:32:16,893 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:32:16,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:32:16,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:32:16,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:32:16,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:32:16,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:32:16,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:32:16,894 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:32:16,894 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:32:16,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:32:16,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:32:16,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:32:16,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:32:16,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:32:16,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:32:16,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:16,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:32:16,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:32:16,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:32:16,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:32:16,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:32:16,896 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:32:16,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:32:16,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:32:16,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b [2022-04-18 16:32:17,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:32:17,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:32:17,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:32:17,122 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:32:17,122 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:32:17,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2022-04-18 16:32:17,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b309c8e/2e6991ab292b4d85984e08611e6bf986/FLAG3654c6bee [2022-04-18 16:32:17,515 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:32:17,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2022-04-18 16:32:17,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b309c8e/2e6991ab292b4d85984e08611e6bf986/FLAG3654c6bee [2022-04-18 16:32:17,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7b309c8e/2e6991ab292b4d85984e08611e6bf986 [2022-04-18 16:32:17,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:32:17,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:32:17,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:17,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:32:17,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:32:17,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:17" (1/1) ... [2022-04-18 16:32:17,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c3fcb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:17, skipping insertion in model container [2022-04-18 16:32:17,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:32:17" (1/1) ... [2022-04-18 16:32:17,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:32:17,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:32:18,152 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-chromosome-trans.wvr.c[3034,3047] [2022-04-18 16:32:18,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:18,169 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:32:18,209 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-chromosome-trans.wvr.c[3034,3047] [2022-04-18 16:32:18,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:32:18,221 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:32:18,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18 WrapperNode [2022-04-18 16:32:18,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:32:18,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:18,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:32:18,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:32:18,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,278 INFO L137 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 459 [2022-04-18 16:32:18,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:32:18,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:32:18,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:32:18,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:32:18,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:32:18,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:32:18,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:32:18,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:32:18,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (1/1) ... [2022-04-18 16:32:18,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:32:18,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:18,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:32:18,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:32:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:32:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:32:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:32:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:32:18,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:32:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:32:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:32:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:32:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:32:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:32:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:32:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:32:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:32:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:32:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:32:18,389 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:32:18,526 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:32:18,527 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:32:19,020 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:32:19,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:32:19,029 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 16:32:19,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:19 BoogieIcfgContainer [2022-04-18 16:32:19,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:32:19,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:32:19,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:32:19,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:32:19,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:32:17" (1/3) ... [2022-04-18 16:32:19,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509f3cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:19, skipping insertion in model container [2022-04-18 16:32:19,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:32:18" (2/3) ... [2022-04-18 16:32:19,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509f3cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:32:19, skipping insertion in model container [2022-04-18 16:32:19,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:32:19" (3/3) ... [2022-04-18 16:32:19,056 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2022-04-18 16:32:19,059 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:32:19,059 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:32:19,059 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-04-18 16:32:19,059 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:32:19,209 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:32:19,246 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:32:19,252 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 16:32:19,252 INFO L341 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2022-04-18 16:32:19,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 573 places, 596 transitions, 1216 flow [2022-04-18 16:32:19,445 INFO L129 PetriNetUnfolder]: 33/593 cut-off events. [2022-04-18 16:32:19,445 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:32:19,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 593 events. 33/593 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1324 event pairs, 0 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2022-04-18 16:32:19,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 573 places, 596 transitions, 1216 flow [2022-04-18 16:32:19,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 548 places, 569 transitions, 1156 flow [2022-04-18 16:32:19,476 INFO L129 PetriNetUnfolder]: 3/65 cut-off events. [2022-04-18 16:32:19,476 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:32:19,476 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:19,477 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] [2022-04-18 16:32:19,477 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:19,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:19,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2291765, now seen corresponding path program 1 times [2022-04-18 16:32:19,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:19,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73922161] [2022-04-18 16:32:19,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:19,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:19,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:19,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:19,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73922161] [2022-04-18 16:32:19,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73922161] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:19,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:19,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:19,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699855448] [2022-04-18 16:32:19,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:19,713 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:19,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:19,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:19,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:19,743 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-04-18 16:32:19,749 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 569 transitions, 1156 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:19,749 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:19,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-04-18 16:32:19,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:20,112 INFO L129 PetriNetUnfolder]: 56/1353 cut-off events. [2022-04-18 16:32:20,113 INFO L130 PetriNetUnfolder]: For 53/55 co-relation queries the response was YES. [2022-04-18 16:32:20,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 1353 events. 56/1353 cut-off events. For 53/55 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6869 event pairs, 21 based on Foata normal form. 99/1248 useless extension candidates. Maximal degree in co-relation 1000. Up to 72 conditions per place. [2022-04-18 16:32:20,138 INFO L132 encePairwiseOnDemand]: 572/596 looper letters, 15 selfloop transitions, 2 changer transitions 6/547 dead transitions. [2022-04-18 16:32:20,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 547 transitions, 1146 flow [2022-04-18 16:32:20,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:20,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1704 transitions. [2022-04-18 16:32:20,158 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9530201342281879 [2022-04-18 16:32:20,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1704 transitions. [2022-04-18 16:32:20,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1704 transitions. [2022-04-18 16:32:20,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:20,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1704 transitions. [2022-04-18 16:32:20,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:20,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:20,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:20,182 INFO L186 Difference]: Start difference. First operand has 548 places, 569 transitions, 1156 flow. Second operand 3 states and 1704 transitions. [2022-04-18 16:32:20,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 547 transitions, 1146 flow [2022-04-18 16:32:20,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 547 transitions, 1134 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:32:20,205 INFO L242 Difference]: Finished difference. Result has 543 places, 541 transitions, 1092 flow [2022-04-18 16:32:20,207 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=543, PETRI_TRANSITIONS=541} [2022-04-18 16:32:20,210 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -5 predicate places. [2022-04-18 16:32:20,211 INFO L478 AbstractCegarLoop]: Abstraction has has 543 places, 541 transitions, 1092 flow [2022-04-18 16:32:20,212 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:20,212 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:20,212 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] [2022-04-18 16:32:20,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:32:20,213 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:20,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:20,214 INFO L85 PathProgramCache]: Analyzing trace with hash -926204485, now seen corresponding path program 1 times [2022-04-18 16:32:20,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:20,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796455673] [2022-04-18 16:32:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:20,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:20,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:20,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:20,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796455673] [2022-04-18 16:32:20,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796455673] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:20,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:20,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:20,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120064494] [2022-04-18 16:32:20,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:20,408 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:32:20,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:20,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:32:20,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:32:20,412 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 596 [2022-04-18 16:32:20,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 541 transitions, 1092 flow. Second operand has 6 states, 6 states have (on average 463.8333333333333) internal successors, (2783), 6 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:20,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:20,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 596 [2022-04-18 16:32:20,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:46,944 INFO L129 PetriNetUnfolder]: 49023/197651 cut-off events. [2022-04-18 16:32:46,945 INFO L130 PetriNetUnfolder]: For 349/614 co-relation queries the response was YES. [2022-04-18 16:32:48,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 261648 conditions, 197651 events. 49023/197651 cut-off events. For 349/614 co-relation queries the response was YES. Maximal size of possible extension queue 3431. Compared 3236203 event pairs, 42984 based on Foata normal form. 0/164456 useless extension candidates. Maximal degree in co-relation 261558. Up to 63795 conditions per place. [2022-04-18 16:32:49,235 INFO L132 encePairwiseOnDemand]: 578/596 looper letters, 93 selfloop transitions, 15 changer transitions 0/538 dead transitions. [2022-04-18 16:32:49,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 538 transitions, 1302 flow [2022-04-18 16:32:49,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:32:49,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:32:49,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2883 transitions. [2022-04-18 16:32:49,242 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8062080536912751 [2022-04-18 16:32:49,242 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2883 transitions. [2022-04-18 16:32:49,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2883 transitions. [2022-04-18 16:32:49,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:49,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2883 transitions. [2022-04-18 16:32:49,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 480.5) internal successors, (2883), 6 states have internal predecessors, (2883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 596.0) internal successors, (4172), 7 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,259 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 596.0) internal successors, (4172), 7 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,259 INFO L186 Difference]: Start difference. First operand has 543 places, 541 transitions, 1092 flow. Second operand 6 states and 2883 transitions. [2022-04-18 16:32:49,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 538 transitions, 1302 flow [2022-04-18 16:32:49,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 538 transitions, 1298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:49,270 INFO L242 Difference]: Finished difference. Result has 537 places, 538 transitions, 1112 flow [2022-04-18 16:32:49,271 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1112, PETRI_PLACES=537, PETRI_TRANSITIONS=538} [2022-04-18 16:32:49,272 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -11 predicate places. [2022-04-18 16:32:49,272 INFO L478 AbstractCegarLoop]: Abstraction has has 537 places, 538 transitions, 1112 flow [2022-04-18 16:32:49,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 463.8333333333333) internal successors, (2783), 6 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,274 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,274 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] [2022-04-18 16:32:49,274 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:32:49,275 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1011316489, now seen corresponding path program 1 times [2022-04-18 16:32:49,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685583004] [2022-04-18 16:32:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:49,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:49,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685583004] [2022-04-18 16:32:49,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685583004] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:49,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:49,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:49,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577612706] [2022-04-18 16:32:49,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:49,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:49,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:49,345 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-04-18 16:32:49,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 538 transitions, 1112 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,348 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-04-18 16:32:49,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:49,757 INFO L129 PetriNetUnfolder]: 86/1882 cut-off events. [2022-04-18 16:32:49,757 INFO L130 PetriNetUnfolder]: For 11/16 co-relation queries the response was YES. [2022-04-18 16:32:49,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2025 conditions, 1882 events. 86/1882 cut-off events. For 11/16 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 12284 event pairs, 39 based on Foata normal form. 0/1602 useless extension candidates. Maximal degree in co-relation 1977. Up to 103 conditions per place. [2022-04-18 16:32:49,787 INFO L132 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/537 dead transitions. [2022-04-18 16:32:49,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 537 transitions, 1144 flow [2022-04-18 16:32:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-04-18 16:32:49,792 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-04-18 16:32:49,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-04-18 16:32:49,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-04-18 16:32:49,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:49,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-04-18 16:32:49,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,803 INFO L186 Difference]: Start difference. First operand has 537 places, 538 transitions, 1112 flow. Second operand 3 states and 1683 transitions. [2022-04-18 16:32:49,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 537 transitions, 1144 flow [2022-04-18 16:32:49,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 537 transitions, 1114 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:32:49,811 INFO L242 Difference]: Finished difference. Result has 533 places, 537 transitions, 1084 flow [2022-04-18 16:32:49,811 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1084, PETRI_PLACES=533, PETRI_TRANSITIONS=537} [2022-04-18 16:32:49,812 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -15 predicate places. [2022-04-18 16:32:49,812 INFO L478 AbstractCegarLoop]: Abstraction has has 533 places, 537 transitions, 1084 flow [2022-04-18 16:32:49,814 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,814 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:49,814 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:49,814 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:32:49,815 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:49,815 INFO L85 PathProgramCache]: Analyzing trace with hash -339622776, now seen corresponding path program 1 times [2022-04-18 16:32:49,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:49,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356358551] [2022-04-18 16:32:49,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:49,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:49,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:49,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356358551] [2022-04-18 16:32:49,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356358551] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:49,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:49,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:49,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306872182] [2022-04-18 16:32:49,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:49,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:49,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:49,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:49,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:49,865 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-04-18 16:32:49,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 537 transitions, 1084 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:49,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:49,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-04-18 16:32:49,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,090 INFO L129 PetriNetUnfolder]: 82/1587 cut-off events. [2022-04-18 16:32:50,091 INFO L130 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-04-18 16:32:50,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1704 conditions, 1587 events. 82/1587 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8746 event pairs, 39 based on Foata normal form. 0/1357 useless extension candidates. Maximal degree in co-relation 1584. Up to 105 conditions per place. [2022-04-18 16:32:50,119 INFO L132 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/536 dead transitions. [2022-04-18 16:32:50,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 536 transitions, 1116 flow [2022-04-18 16:32:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-04-18 16:32:50,124 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-04-18 16:32:50,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,134 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,134 INFO L186 Difference]: Start difference. First operand has 533 places, 537 transitions, 1084 flow. Second operand 3 states and 1683 transitions. [2022-04-18 16:32:50,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 536 transitions, 1116 flow [2022-04-18 16:32:50,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 536 transitions, 1112 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:50,141 INFO L242 Difference]: Finished difference. Result has 532 places, 536 transitions, 1082 flow [2022-04-18 16:32:50,142 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=536, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=532, PETRI_TRANSITIONS=536} [2022-04-18 16:32:50,143 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -16 predicate places. [2022-04-18 16:32:50,143 INFO L478 AbstractCegarLoop]: Abstraction has has 532 places, 536 transitions, 1082 flow [2022-04-18 16:32:50,144 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,144 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,144 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:50,145 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:32:50,145 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:50,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1768843540, now seen corresponding path program 1 times [2022-04-18 16:32:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290325772] [2022-04-18 16:32:50,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:50,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290325772] [2022-04-18 16:32:50,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290325772] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721005816] [2022-04-18 16:32:50,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,204 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,206 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-04-18 16:32:50,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 536 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-04-18 16:32:50,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,399 INFO L129 PetriNetUnfolder]: 45/1249 cut-off events. [2022-04-18 16:32:50,399 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:32:50,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 1249 events. 45/1249 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6093 event pairs, 21 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 1157. Up to 58 conditions per place. [2022-04-18 16:32:50,417 INFO L132 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-04-18 16:32:50,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 535 transitions, 1114 flow [2022-04-18 16:32:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-04-18 16:32:50,421 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-04-18 16:32:50,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,428 INFO L186 Difference]: Start difference. First operand has 532 places, 536 transitions, 1082 flow. Second operand 3 states and 1683 transitions. [2022-04-18 16:32:50,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 535 transitions, 1114 flow [2022-04-18 16:32:50,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 535 transitions, 1110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:50,435 INFO L242 Difference]: Finished difference. Result has 531 places, 535 transitions, 1080 flow [2022-04-18 16:32:50,436 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1080, PETRI_PLACES=531, PETRI_TRANSITIONS=535} [2022-04-18 16:32:50,438 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -17 predicate places. [2022-04-18 16:32:50,438 INFO L478 AbstractCegarLoop]: Abstraction has has 531 places, 535 transitions, 1080 flow [2022-04-18 16:32:50,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,439 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,439 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] [2022-04-18 16:32:50,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:32:50,440 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:50,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1594654618, now seen corresponding path program 1 times [2022-04-18 16:32:50,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277248777] [2022-04-18 16:32:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:50,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277248777] [2022-04-18 16:32:50,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277248777] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351658738] [2022-04-18 16:32:50,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,494 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-04-18 16:32:50,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 535 transitions, 1080 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-04-18 16:32:50,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:50,682 INFO L129 PetriNetUnfolder]: 73/1716 cut-off events. [2022-04-18 16:32:50,682 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 16:32:50,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1828 conditions, 1716 events. 73/1716 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11692 event pairs, 39 based on Foata normal form. 0/1457 useless extension candidates. Maximal degree in co-relation 1657. Up to 85 conditions per place. [2022-04-18 16:32:50,703 INFO L132 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-04-18 16:32:50,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 534 transitions, 1112 flow [2022-04-18 16:32:50,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:50,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:50,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-04-18 16:32:50,706 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-04-18 16:32:50,706 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:50,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-04-18 16:32:50,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,722 INFO L186 Difference]: Start difference. First operand has 531 places, 535 transitions, 1080 flow. Second operand 3 states and 1683 transitions. [2022-04-18 16:32:50,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 534 transitions, 1112 flow [2022-04-18 16:32:50,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 534 transitions, 1108 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:50,729 INFO L242 Difference]: Finished difference. Result has 530 places, 534 transitions, 1078 flow [2022-04-18 16:32:50,730 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1074, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1078, PETRI_PLACES=530, PETRI_TRANSITIONS=534} [2022-04-18 16:32:50,732 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-04-18 16:32:50,732 INFO L478 AbstractCegarLoop]: Abstraction has has 530 places, 534 transitions, 1078 flow [2022-04-18 16:32:50,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,733 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:50,733 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] [2022-04-18 16:32:50,733 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:32:50,734 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:50,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:50,734 INFO L85 PathProgramCache]: Analyzing trace with hash -915065386, now seen corresponding path program 1 times [2022-04-18 16:32:50,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:50,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785939878] [2022-04-18 16:32:50,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:50,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:50,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:50,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785939878] [2022-04-18 16:32:50,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785939878] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:50,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:50,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:50,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842130601] [2022-04-18 16:32:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:50,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:50,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:50,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:50,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:50,796 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-04-18 16:32:50,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 534 transitions, 1078 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:50,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:50,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-04-18 16:32:50,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,018 INFO L129 PetriNetUnfolder]: 71/1575 cut-off events. [2022-04-18 16:32:51,019 INFO L130 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2022-04-18 16:32:51,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 1575 events. 71/1575 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9234 event pairs, 39 based on Foata normal form. 0/1344 useless extension candidates. Maximal degree in co-relation 1495. Up to 85 conditions per place. [2022-04-18 16:32:51,045 INFO L132 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/533 dead transitions. [2022-04-18 16:32:51,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 533 transitions, 1110 flow [2022-04-18 16:32:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-04-18 16:32:51,049 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-04-18 16:32:51,049 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-04-18 16:32:51,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-04-18 16:32:51,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-04-18 16:32:51,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,056 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,056 INFO L186 Difference]: Start difference. First operand has 530 places, 534 transitions, 1078 flow. Second operand 3 states and 1683 transitions. [2022-04-18 16:32:51,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 533 transitions, 1110 flow [2022-04-18 16:32:51,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 533 transitions, 1106 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:51,066 INFO L242 Difference]: Finished difference. Result has 529 places, 533 transitions, 1076 flow [2022-04-18 16:32:51,066 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1072, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1076, PETRI_PLACES=529, PETRI_TRANSITIONS=533} [2022-04-18 16:32:51,067 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -19 predicate places. [2022-04-18 16:32:51,067 INFO L478 AbstractCegarLoop]: Abstraction has has 529 places, 533 transitions, 1076 flow [2022-04-18 16:32:51,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,068 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,068 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] [2022-04-18 16:32:51,068 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:32:51,068 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:51,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1440452089, now seen corresponding path program 1 times [2022-04-18 16:32:51,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020464704] [2022-04-18 16:32:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:51,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020464704] [2022-04-18 16:32:51,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020464704] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041868992] [2022-04-18 16:32:51,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,102 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,104 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-04-18 16:32:51,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 533 transitions, 1076 flow. Second operand has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 3 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-04-18 16:32:51,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,323 INFO L129 PetriNetUnfolder]: 36/1244 cut-off events. [2022-04-18 16:32:51,323 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:32:51,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 1244 events. 36/1244 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6064 event pairs, 8 based on Foata normal form. 0/1076 useless extension candidates. Maximal degree in co-relation 1108. Up to 31 conditions per place. [2022-04-18 16:32:51,341 INFO L132 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-04-18 16:32:51,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 535 transitions, 1114 flow [2022-04-18 16:32:51,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-04-18 16:32:51,344 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-04-18 16:32:51,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-04-18 16:32:51,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-04-18 16:32:51,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-04-18 16:32:51,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,351 INFO L186 Difference]: Start difference. First operand has 529 places, 533 transitions, 1076 flow. Second operand 3 states and 1692 transitions. [2022-04-18 16:32:51,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 535 transitions, 1114 flow [2022-04-18 16:32:51,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 535 transitions, 1110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:51,359 INFO L242 Difference]: Finished difference. Result has 528 places, 533 transitions, 1082 flow [2022-04-18 16:32:51,360 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=528, PETRI_TRANSITIONS=533} [2022-04-18 16:32:51,361 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -20 predicate places. [2022-04-18 16:32:51,361 INFO L478 AbstractCegarLoop]: Abstraction has has 528 places, 533 transitions, 1082 flow [2022-04-18 16:32:51,361 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 3 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,362 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,362 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] [2022-04-18 16:32:51,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:32:51,362 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2117060305, now seen corresponding path program 1 times [2022-04-18 16:32:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211990941] [2022-04-18 16:32:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:51,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211990941] [2022-04-18 16:32:51,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211990941] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807670865] [2022-04-18 16:32:51,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,396 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-04-18 16:32:51,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 533 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-04-18 16:32:51,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,568 INFO L129 PetriNetUnfolder]: 56/1701 cut-off events. [2022-04-18 16:32:51,568 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:32:51,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 1701 events. 56/1701 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11687 event pairs, 11 based on Foata normal form. 0/1474 useless extension candidates. Maximal degree in co-relation 1381. Up to 43 conditions per place. [2022-04-18 16:32:51,586 INFO L132 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-04-18 16:32:51,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 535 transitions, 1120 flow [2022-04-18 16:32:51,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-04-18 16:32:51,589 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-04-18 16:32:51,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-04-18 16:32:51,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-04-18 16:32:51,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-04-18 16:32:51,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,594 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,594 INFO L186 Difference]: Start difference. First operand has 528 places, 533 transitions, 1082 flow. Second operand 3 states and 1692 transitions. [2022-04-18 16:32:51,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 535 transitions, 1120 flow [2022-04-18 16:32:51,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 535 transitions, 1120 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:51,600 INFO L242 Difference]: Finished difference. Result has 529 places, 533 transitions, 1092 flow [2022-04-18 16:32:51,601 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=529, PETRI_TRANSITIONS=533} [2022-04-18 16:32:51,601 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -19 predicate places. [2022-04-18 16:32:51,602 INFO L478 AbstractCegarLoop]: Abstraction has has 529 places, 533 transitions, 1092 flow [2022-04-18 16:32:51,602 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,602 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,602 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 16:32:51,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:32:51,603 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:51,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,603 INFO L85 PathProgramCache]: Analyzing trace with hash -949042844, now seen corresponding path program 1 times [2022-04-18 16:32:51,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144925558] [2022-04-18 16:32:51,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:51,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144925558] [2022-04-18 16:32:51,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144925558] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082084178] [2022-04-18 16:32:51,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,629 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,630 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 547 out of 596 [2022-04-18 16:32:51,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 533 transitions, 1092 flow. Second operand has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 547 of 596 [2022-04-18 16:32:51,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:51,797 INFO L129 PetriNetUnfolder]: 75/1241 cut-off events. [2022-04-18 16:32:51,797 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:32:51,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1449 conditions, 1241 events. 75/1241 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7136 event pairs, 42 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1157. Up to 123 conditions per place. [2022-04-18 16:32:51,815 INFO L132 encePairwiseOnDemand]: 593/596 looper letters, 25 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-04-18 16:32:51,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 534 transitions, 1150 flow [2022-04-18 16:32:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:51,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:51,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1669 transitions. [2022-04-18 16:32:51,818 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9334451901565995 [2022-04-18 16:32:51,818 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1669 transitions. [2022-04-18 16:32:51,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1669 transitions. [2022-04-18 16:32:51,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:51,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1669 transitions. [2022-04-18 16:32:51,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,823 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,823 INFO L186 Difference]: Start difference. First operand has 529 places, 533 transitions, 1092 flow. Second operand 3 states and 1669 transitions. [2022-04-18 16:32:51,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 534 transitions, 1150 flow [2022-04-18 16:32:51,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 534 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:51,830 INFO L242 Difference]: Finished difference. Result has 530 places, 532 transitions, 1094 flow [2022-04-18 16:32:51,831 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=530, PETRI_TRANSITIONS=532} [2022-04-18 16:32:51,831 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-04-18 16:32:51,831 INFO L478 AbstractCegarLoop]: Abstraction has has 530 places, 532 transitions, 1094 flow [2022-04-18 16:32:51,832 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,832 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:51,832 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:51,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:32:51,832 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:51,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:51,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2087203755, now seen corresponding path program 1 times [2022-04-18 16:32:51,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:51,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153357545] [2022-04-18 16:32:51,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:51,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:51,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:51,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:51,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153357545] [2022-04-18 16:32:51,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153357545] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:51,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:51,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:51,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573043620] [2022-04-18 16:32:51,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:51,859 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:51,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:51,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:51,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:51,861 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-04-18 16:32:51,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 532 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:51,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:51,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-04-18 16:32:51,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,084 INFO L129 PetriNetUnfolder]: 68/1911 cut-off events. [2022-04-18 16:32:52,084 INFO L130 PetriNetUnfolder]: For 16/21 co-relation queries the response was YES. [2022-04-18 16:32:52,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2000 conditions, 1911 events. 68/1911 cut-off events. For 16/21 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12584 event pairs, 15 based on Foata normal form. 0/1649 useless extension candidates. Maximal degree in co-relation 1594. Up to 56 conditions per place. [2022-04-18 16:32:52,112 INFO L132 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-04-18 16:32:52,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 534 transitions, 1132 flow [2022-04-18 16:32:52,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:52,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:52,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-04-18 16:32:52,117 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-04-18 16:32:52,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-04-18 16:32:52,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-04-18 16:32:52,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:52,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-04-18 16:32:52,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,124 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,124 INFO L186 Difference]: Start difference. First operand has 530 places, 532 transitions, 1094 flow. Second operand 3 states and 1692 transitions. [2022-04-18 16:32:52,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 534 transitions, 1132 flow [2022-04-18 16:32:52,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 534 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:32:52,131 INFO L242 Difference]: Finished difference. Result has 529 places, 532 transitions, 1100 flow [2022-04-18 16:32:52,132 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=529, PETRI_TRANSITIONS=532} [2022-04-18 16:32:52,132 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -19 predicate places. [2022-04-18 16:32:52,132 INFO L478 AbstractCegarLoop]: Abstraction has has 529 places, 532 transitions, 1100 flow [2022-04-18 16:32:52,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,133 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:52,133 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] [2022-04-18 16:32:52,133 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:32:52,133 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:52,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:52,134 INFO L85 PathProgramCache]: Analyzing trace with hash -35451575, now seen corresponding path program 1 times [2022-04-18 16:32:52,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:52,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646028370] [2022-04-18 16:32:52,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:52,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:52,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646028370] [2022-04-18 16:32:52,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646028370] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:52,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:52,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:32:52,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667323391] [2022-04-18 16:32:52,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:52,163 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:32:52,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:52,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:32:52,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:32:52,165 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-04-18 16:32:52,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 532 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 3 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:52,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-04-18 16:32:52,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,473 INFO L129 PetriNetUnfolder]: 101/2332 cut-off events. [2022-04-18 16:32:52,473 INFO L130 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-04-18 16:32:52,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 2332 events. 101/2332 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 16174 event pairs, 6 based on Foata normal form. 0/2014 useless extension candidates. Maximal degree in co-relation 2052. Up to 104 conditions per place. [2022-04-18 16:32:52,506 INFO L132 encePairwiseOnDemand]: 592/596 looper letters, 17 selfloop transitions, 2 changer transitions 0/537 dead transitions. [2022-04-18 16:32:52,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 537 transitions, 1153 flow [2022-04-18 16:32:52,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:32:52,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:32:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1695 transitions. [2022-04-18 16:32:52,509 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.947986577181208 [2022-04-18 16:32:52,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1695 transitions. [2022-04-18 16:32:52,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1695 transitions. [2022-04-18 16:32:52,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:52,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1695 transitions. [2022-04-18 16:32:52,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 565.0) internal successors, (1695), 3 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,514 INFO L186 Difference]: Start difference. First operand has 529 places, 532 transitions, 1100 flow. Second operand 3 states and 1695 transitions. [2022-04-18 16:32:52,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 537 transitions, 1153 flow [2022-04-18 16:32:52,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 537 transitions, 1153 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:52,521 INFO L242 Difference]: Finished difference. Result has 530 places, 532 transitions, 1110 flow [2022-04-18 16:32:52,522 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1110, PETRI_PLACES=530, PETRI_TRANSITIONS=532} [2022-04-18 16:32:52,522 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-04-18 16:32:52,522 INFO L478 AbstractCegarLoop]: Abstraction has has 530 places, 532 transitions, 1110 flow [2022-04-18 16:32:52,523 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 3 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,523 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:52,523 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] [2022-04-18 16:32:52,523 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:32:52,523 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:52,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1534590956, now seen corresponding path program 1 times [2022-04-18 16:32:52,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:52,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501206398] [2022-04-18 16:32:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:32:52,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:52,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501206398] [2022-04-18 16:32:52,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501206398] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:52,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:32:52,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:32:52,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726711888] [2022-04-18 16:32:52,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:52,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 16:32:52,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:52,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 16:32:52,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-18 16:32:52,573 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 596 [2022-04-18 16:32:52,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 532 transitions, 1110 flow. Second operand has 5 states, 5 states have (on average 518.4) internal successors, (2592), 5 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:52,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 596 [2022-04-18 16:32:52,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:52,838 INFO L129 PetriNetUnfolder]: 43/1331 cut-off events. [2022-04-18 16:32:52,839 INFO L130 PetriNetUnfolder]: For 10/18 co-relation queries the response was YES. [2022-04-18 16:32:52,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 1331 events. 43/1331 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6595 event pairs, 0 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1063. Up to 60 conditions per place. [2022-04-18 16:32:52,860 INFO L132 encePairwiseOnDemand]: 581/596 looper letters, 72 selfloop transitions, 12 changer transitions 0/559 dead transitions. [2022-04-18 16:32:52,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 559 transitions, 1332 flow [2022-04-18 16:32:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:32:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:32:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2652 transitions. [2022-04-18 16:32:52,864 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8899328859060402 [2022-04-18 16:32:52,864 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2652 transitions. [2022-04-18 16:32:52,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2652 transitions. [2022-04-18 16:32:52,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:52,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2652 transitions. [2022-04-18 16:32:52,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 530.4) internal successors, (2652), 5 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 596.0) internal successors, (3576), 6 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,873 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 596.0) internal successors, (3576), 6 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,873 INFO L186 Difference]: Start difference. First operand has 530 places, 532 transitions, 1110 flow. Second operand 5 states and 2652 transitions. [2022-04-18 16:32:52,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 559 transitions, 1332 flow [2022-04-18 16:32:52,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 559 transitions, 1332 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:32:52,881 INFO L242 Difference]: Finished difference. Result has 535 places, 535 transitions, 1158 flow [2022-04-18 16:32:52,881 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1158, PETRI_PLACES=535, PETRI_TRANSITIONS=535} [2022-04-18 16:32:52,882 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -13 predicate places. [2022-04-18 16:32:52,882 INFO L478 AbstractCegarLoop]: Abstraction has has 535 places, 535 transitions, 1158 flow [2022-04-18 16:32:52,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 518.4) internal successors, (2592), 5 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:52,883 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:52,883 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:52,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:32:52,883 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:52,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:52,883 INFO L85 PathProgramCache]: Analyzing trace with hash -801154346, now seen corresponding path program 1 times [2022-04-18 16:32:52,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:52,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544071903] [2022-04-18 16:32:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:52,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:32:52,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:52,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544071903] [2022-04-18 16:32:52,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544071903] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 16:32:52,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902542698] [2022-04-18 16:32:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:52,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 16:32:52,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:52,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 16:32:52,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-18 16:32:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:53,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-18 16:32:53,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 16:32:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:32:53,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-18 16:32:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:32:53,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902542698] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-18 16:32:53,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-18 16:32:53,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-04-18 16:32:53,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120817513] [2022-04-18 16:32:53,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-18 16:32:53,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-04-18 16:32:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:53,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-04-18 16:32:53,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-04-18 16:32:53,826 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 596 [2022-04-18 16:32:53,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 535 transitions, 1158 flow. Second operand has 15 states, 15 states have (on average 515.8) internal successors, (7737), 15 states have internal predecessors, (7737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:53,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:53,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 596 [2022-04-18 16:32:53,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:32:54,290 INFO L129 PetriNetUnfolder]: 43/1379 cut-off events. [2022-04-18 16:32:54,290 INFO L130 PetriNetUnfolder]: For 22/30 co-relation queries the response was YES. [2022-04-18 16:32:54,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1596 conditions, 1379 events. 43/1379 cut-off events. For 22/30 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6526 event pairs, 0 based on Foata normal form. 6/1222 useless extension candidates. Maximal degree in co-relation 1267. Up to 36 conditions per place. [2022-04-18 16:32:54,310 INFO L132 encePairwiseOnDemand]: 572/596 looper letters, 90 selfloop transitions, 33 changer transitions 0/595 dead transitions. [2022-04-18 16:32:54,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 595 transitions, 1530 flow [2022-04-18 16:32:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 16:32:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-04-18 16:32:54,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5739 transitions. [2022-04-18 16:32:54,317 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8753813300793166 [2022-04-18 16:32:54,318 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5739 transitions. [2022-04-18 16:32:54,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5739 transitions. [2022-04-18 16:32:54,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:32:54,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5739 transitions. [2022-04-18 16:32:54,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 521.7272727272727) internal successors, (5739), 11 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 596.0) internal successors, (7152), 12 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,332 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 596.0) internal successors, (7152), 12 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,332 INFO L186 Difference]: Start difference. First operand has 535 places, 535 transitions, 1158 flow. Second operand 11 states and 5739 transitions. [2022-04-18 16:32:54,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 595 transitions, 1530 flow [2022-04-18 16:32:54,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 595 transitions, 1512 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-04-18 16:32:54,340 INFO L242 Difference]: Finished difference. Result has 545 places, 553 transitions, 1307 flow [2022-04-18 16:32:54,341 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1307, PETRI_PLACES=545, PETRI_TRANSITIONS=553} [2022-04-18 16:32:54,341 INFO L335 CegarLoopForPetriNet]: 548 programPoint places, -3 predicate places. [2022-04-18 16:32:54,341 INFO L478 AbstractCegarLoop]: Abstraction has has 545 places, 553 transitions, 1307 flow [2022-04-18 16:32:54,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 515.8) internal successors, (7737), 15 states have internal predecessors, (7737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:54,342 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:32:54,343 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:32:54,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-18 16:32:54,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-04-18 16:32:54,556 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-04-18 16:32:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:32:54,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1798193578, now seen corresponding path program 2 times [2022-04-18 16:32:54,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:32:54,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941764440] [2022-04-18 16:32:54,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:32:54,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:32:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:32:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-04-18 16:32:54,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:32:54,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941764440] [2022-04-18 16:32:54,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941764440] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-18 16:32:54,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119476370] [2022-04-18 16:32:54,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-18 16:32:54,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-18 16:32:54,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:32:54,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-18 16:32:54,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-18 16:32:54,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-04-18 16:32:54,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-18 16:32:54,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 19 conjunts are in the unsatisfiable core [2022-04-18 16:32:54,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-18 16:32:55,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-04-18 16:32:55,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-04-18 16:32:55,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,317 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 16:32:55,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-04-18 16:32:55,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-18 16:32:55,347 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-18 16:32:55,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-04-18 16:32:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-04-18 16:32:55,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-18 16:32:55,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119476370] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:32:55,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-18 16:32:55,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2022-04-18 16:32:55,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785275757] [2022-04-18 16:32:55,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:32:55,369 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-18 16:32:55,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:32:55,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-18 16:32:55,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-04-18 16:32:55,372 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 596 [2022-04-18 16:32:55,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 553 transitions, 1307 flow. Second operand has 7 states, 7 states have (on average 492.85714285714283) internal successors, (3450), 7 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:32:55,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:32:55,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 596 [2022-04-18 16:32:55,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand