./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 039f5312b62da5ff616f0ade8cc5a2dd494698e7519842b003d8d55f65a5fe6c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:33:19,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:33:19,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:33:19,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:33:19,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:33:19,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:33:19,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:33:19,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:33:19,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:33:19,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:33:19,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:33:19,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:33:19,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:33:19,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:33:19,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:33:19,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:33:19,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:33:19,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:33:19,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:33:19,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:33:19,938 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:33:19,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:33:19,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:33:19,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:33:19,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:33:19,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:33:19,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:33:19,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:33:19,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:33:19,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:33:19,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:33:19,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:33:19,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:33:19,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:33:19,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:33:19,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:33:19,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:33:19,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:33:19,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:33:19,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:33:19,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:33:19,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:33:19,952 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:33:19,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:33:19,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:33:19,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:33:19,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:33:19,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:33:19,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:33:19,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:33:19,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:33:19,967 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:33:19,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:33:19,967 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:33:19,967 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:33:19,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:33:19,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:33:19,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:33:19,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:33:19,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:33:19,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:33:19,968 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:33:19,969 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:33:19,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:33:19,970 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:33:19,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:33:19,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:33:19,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:33:19,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:33:19,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:19,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:33:19,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:33:19,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:33:19,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:33:19,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:33:19,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:33:19,972 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:33:19,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:33:19,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039f5312b62da5ff616f0ade8cc5a2dd494698e7519842b003d8d55f65a5fe6c [2022-04-18 16:33:20,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:33:20,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:33:20,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:33:20,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:33:20,166 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:33:20,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-04-18 16:33:20,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa75c8e00/0edcf193d366455da4dc1b2e54d71125/FLAG6a448db6a [2022-04-18 16:33:20,550 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:33:20,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2022-04-18 16:33:20,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa75c8e00/0edcf193d366455da4dc1b2e54d71125/FLAG6a448db6a [2022-04-18 16:33:20,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa75c8e00/0edcf193d366455da4dc1b2e54d71125 [2022-04-18 16:33:20,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:33:20,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:33:21,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:21,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:33:21,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:33:21,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:20" (1/1) ... [2022-04-18 16:33:21,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86a9203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21, skipping insertion in model container [2022-04-18 16:33:21,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:20" (1/1) ... [2022-04-18 16:33:21,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:33:21,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:33:21,273 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-sre-subst.wvr.c[2333,2346] [2022-04-18 16:33:21,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:21,283 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:33:21,321 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-sre-subst.wvr.c[2333,2346] [2022-04-18 16:33:21,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:21,332 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:33:21,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21 WrapperNode [2022-04-18 16:33:21,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:21,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:21,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:33:21,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:33:21,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,383 INFO L137 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2022-04-18 16:33:21,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:21,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:33:21,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:33:21,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:33:21,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:33:21,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:33:21,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:33:21,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:33:21,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (1/1) ... [2022-04-18 16:33:21,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:21,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:33:21,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:33:21,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:33:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:33:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:33:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:33:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:33:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:33:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:33:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:33:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:33:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:33:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:33:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:33:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:33:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:33:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:33:21,465 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:33:21,546 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:33:21,547 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:33:21,794 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:33:21,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:33:21,801 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:33:21,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:21 BoogieIcfgContainer [2022-04-18 16:33:21,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:33:21,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:33:21,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:33:21,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:33:21,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:33:20" (1/3) ... [2022-04-18 16:33:21,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2223c22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:21, skipping insertion in model container [2022-04-18 16:33:21,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:21" (2/3) ... [2022-04-18 16:33:21,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2223c22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:21, skipping insertion in model container [2022-04-18 16:33:21,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:21" (3/3) ... [2022-04-18 16:33:21,808 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-04-18 16:33:21,811 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:33:21,811 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:33:21,812 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2022-04-18 16:33:21,812 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:33:21,881 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:33:21,913 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:33:21,917 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 16:33:21,918 INFO L341 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-04-18 16:33:21,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 219 places, 218 transitions, 460 flow [2022-04-18 16:33:21,990 INFO L129 PetriNetUnfolder]: 9/215 cut-off events. [2022-04-18 16:33:21,990 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:21,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 215 events. 9/215 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 332 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 122. Up to 2 conditions per place. [2022-04-18 16:33:21,998 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 218 transitions, 460 flow [2022-04-18 16:33:22,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 192 transitions, 402 flow [2022-04-18 16:33:22,006 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2022-04-18 16:33:22,006 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:22,006 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:22,008 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] [2022-04-18 16:33:22,009 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:22,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:22,012 INFO L85 PathProgramCache]: Analyzing trace with hash -184196679, now seen corresponding path program 1 times [2022-04-18 16:33:22,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:22,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075459810] [2022-04-18 16:33:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:22,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:22,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:22,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075459810] [2022-04-18 16:33:22,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075459810] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:22,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:22,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:22,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681266618] [2022-04-18 16:33:22,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:22,137 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:22,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:22,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:22,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:22,165 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 218 [2022-04-18 16:33:22,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 192 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:22,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 218 [2022-04-18 16:33:22,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:22,294 INFO L129 PetriNetUnfolder]: 65/499 cut-off events. [2022-04-18 16:33:22,294 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-04-18 16:33:22,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 499 events. 65/499 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2455 event pairs, 39 based on Foata normal form. 1/385 useless extension candidates. Maximal degree in co-relation 492. Up to 85 conditions per place. [2022-04-18 16:33:22,304 INFO L132 encePairwiseOnDemand]: 214/218 looper letters, 15 selfloop transitions, 2 changer transitions 1/190 dead transitions. [2022-04-18 16:33:22,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 190 transitions, 432 flow [2022-04-18 16:33:22,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:22,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:22,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2022-04-18 16:33:22,319 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9327217125382263 [2022-04-18 16:33:22,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2022-04-18 16:33:22,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2022-04-18 16:33:22,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:22,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2022-04-18 16:33:22,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,344 INFO L186 Difference]: Start difference. First operand has 195 places, 192 transitions, 402 flow. Second operand 3 states and 610 transitions. [2022-04-18 16:33:22,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 190 transitions, 432 flow [2022-04-18 16:33:22,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 190 transitions, 420 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:33:22,354 INFO L242 Difference]: Finished difference. Result has 190 places, 189 transitions, 388 flow [2022-04-18 16:33:22,356 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=190, PETRI_TRANSITIONS=189} [2022-04-18 16:33:22,361 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -5 predicate places. [2022-04-18 16:33:22,361 INFO L478 AbstractCegarLoop]: Abstraction has has 190 places, 189 transitions, 388 flow [2022-04-18 16:33:22,362 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,362 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:22,362 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] [2022-04-18 16:33:22,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:33:22,363 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:22,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:22,364 INFO L85 PathProgramCache]: Analyzing trace with hash -441651502, now seen corresponding path program 1 times [2022-04-18 16:33:22,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:22,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153775433] [2022-04-18 16:33:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:22,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:22,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:22,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153775433] [2022-04-18 16:33:22,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153775433] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:22,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:22,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:22,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156529144] [2022-04-18 16:33:22,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:22,451 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:22,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:22,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:22,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:22,453 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 218 [2022-04-18 16:33:22,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 189 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:22,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 218 [2022-04-18 16:33:22,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:22,530 INFO L129 PetriNetUnfolder]: 62/488 cut-off events. [2022-04-18 16:33:22,531 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:33:22,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 488 events. 62/488 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2164 event pairs, 36 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 567. Up to 91 conditions per place. [2022-04-18 16:33:22,537 INFO L132 encePairwiseOnDemand]: 215/218 looper letters, 18 selfloop transitions, 2 changer transitions 0/188 dead transitions. [2022-04-18 16:33:22,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 188 transitions, 426 flow [2022-04-18 16:33:22,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:22,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:22,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 603 transitions. [2022-04-18 16:33:22,540 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9220183486238532 [2022-04-18 16:33:22,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 603 transitions. [2022-04-18 16:33:22,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 603 transitions. [2022-04-18 16:33:22,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:22,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 603 transitions. [2022-04-18 16:33:22,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,543 INFO L186 Difference]: Start difference. First operand has 190 places, 189 transitions, 388 flow. Second operand 3 states and 603 transitions. [2022-04-18 16:33:22,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 188 transitions, 426 flow [2022-04-18 16:33:22,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 188 transitions, 422 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:22,547 INFO L242 Difference]: Finished difference. Result has 188 places, 188 transitions, 386 flow [2022-04-18 16:33:22,547 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=188, PETRI_TRANSITIONS=188} [2022-04-18 16:33:22,548 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -7 predicate places. [2022-04-18 16:33:22,548 INFO L478 AbstractCegarLoop]: Abstraction has has 188 places, 188 transitions, 386 flow [2022-04-18 16:33:22,548 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,549 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:22,549 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] [2022-04-18 16:33:22,549 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:33:22,549 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:22,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:22,550 INFO L85 PathProgramCache]: Analyzing trace with hash -613779255, now seen corresponding path program 1 times [2022-04-18 16:33:22,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:22,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010397991] [2022-04-18 16:33:22,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:22,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:22,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010397991] [2022-04-18 16:33:22,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010397991] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:22,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:22,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:22,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893310386] [2022-04-18 16:33:22,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:22,582 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:22,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:22,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:22,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:22,584 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 218 [2022-04-18 16:33:22,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 188 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:22,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 218 [2022-04-18 16:33:22,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:22,693 INFO L129 PetriNetUnfolder]: 172/721 cut-off events. [2022-04-18 16:33:22,693 INFO L130 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-04-18 16:33:22,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 721 events. 172/721 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4246 event pairs, 132 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 947. Up to 250 conditions per place. [2022-04-18 16:33:22,699 INFO L132 encePairwiseOnDemand]: 215/218 looper letters, 21 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2022-04-18 16:33:22,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 187 transitions, 430 flow [2022-04-18 16:33:22,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:22,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 597 transitions. [2022-04-18 16:33:22,700 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9128440366972477 [2022-04-18 16:33:22,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 597 transitions. [2022-04-18 16:33:22,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 597 transitions. [2022-04-18 16:33:22,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:22,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 597 transitions. [2022-04-18 16:33:22,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,704 INFO L186 Difference]: Start difference. First operand has 188 places, 188 transitions, 386 flow. Second operand 3 states and 597 transitions. [2022-04-18 16:33:22,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 187 transitions, 430 flow [2022-04-18 16:33:22,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 187 transitions, 426 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:22,707 INFO L242 Difference]: Finished difference. Result has 187 places, 187 transitions, 384 flow [2022-04-18 16:33:22,707 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=187, PETRI_TRANSITIONS=187} [2022-04-18 16:33:22,708 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -8 predicate places. [2022-04-18 16:33:22,708 INFO L478 AbstractCegarLoop]: Abstraction has has 187 places, 187 transitions, 384 flow [2022-04-18 16:33:22,708 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,708 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:22,709 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] [2022-04-18 16:33:22,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:33:22,709 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:22,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:22,710 INFO L85 PathProgramCache]: Analyzing trace with hash 40198218, now seen corresponding path program 1 times [2022-04-18 16:33:22,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:22,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904885694] [2022-04-18 16:33:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:22,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:22,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:22,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904885694] [2022-04-18 16:33:22,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904885694] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:22,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:22,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:22,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059457242] [2022-04-18 16:33:22,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:22,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:22,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:22,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:22,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:22,769 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 218 [2022-04-18 16:33:22,770 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 187 transitions, 384 flow. Second operand has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:22,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 218 [2022-04-18 16:33:22,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:22,810 INFO L129 PetriNetUnfolder]: 46/490 cut-off events. [2022-04-18 16:33:22,810 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:33:22,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 556 conditions, 490 events. 46/490 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2504 event pairs, 13 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 510. Up to 43 conditions per place. [2022-04-18 16:33:22,814 INFO L132 encePairwiseOnDemand]: 214/218 looper letters, 14 selfloop transitions, 2 changer transitions 0/189 dead transitions. [2022-04-18 16:33:22,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 189 transitions, 422 flow [2022-04-18 16:33:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:22,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 618 transitions. [2022-04-18 16:33:22,816 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.944954128440367 [2022-04-18 16:33:22,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 618 transitions. [2022-04-18 16:33:22,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 618 transitions. [2022-04-18 16:33:22,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:22,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 618 transitions. [2022-04-18 16:33:22,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,819 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,819 INFO L186 Difference]: Start difference. First operand has 187 places, 187 transitions, 384 flow. Second operand 3 states and 618 transitions. [2022-04-18 16:33:22,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 189 transitions, 422 flow [2022-04-18 16:33:22,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 189 transitions, 418 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:22,822 INFO L242 Difference]: Finished difference. Result has 186 places, 187 transitions, 390 flow [2022-04-18 16:33:22,822 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=186, PETRI_TRANSITIONS=187} [2022-04-18 16:33:22,823 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -9 predicate places. [2022-04-18 16:33:22,823 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 187 transitions, 390 flow [2022-04-18 16:33:22,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,823 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:22,824 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:22,824 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:33:22,824 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:22,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:22,824 INFO L85 PathProgramCache]: Analyzing trace with hash -24202132, now seen corresponding path program 1 times [2022-04-18 16:33:22,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:22,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718262949] [2022-04-18 16:33:22,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:22,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:22,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:22,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718262949] [2022-04-18 16:33:22,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718262949] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:22,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:22,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:22,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201052862] [2022-04-18 16:33:22,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:22,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:22,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:22,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:22,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:22,851 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 218 [2022-04-18 16:33:22,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 187 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:22,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 218 [2022-04-18 16:33:22,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:22,906 INFO L129 PetriNetUnfolder]: 47/469 cut-off events. [2022-04-18 16:33:22,906 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:33:22,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 469 events. 47/469 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2082 event pairs, 16 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 461. Up to 49 conditions per place. [2022-04-18 16:33:22,911 INFO L132 encePairwiseOnDemand]: 213/218 looper letters, 16 selfloop transitions, 2 changer transitions 0/188 dead transitions. [2022-04-18 16:33:22,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 188 transitions, 430 flow [2022-04-18 16:33:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2022-04-18 16:33:22,912 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9357798165137615 [2022-04-18 16:33:22,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 612 transitions. [2022-04-18 16:33:22,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 612 transitions. [2022-04-18 16:33:22,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:22,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 612 transitions. [2022-04-18 16:33:22,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,915 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,916 INFO L186 Difference]: Start difference. First operand has 186 places, 187 transitions, 390 flow. Second operand 3 states and 612 transitions. [2022-04-18 16:33:22,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 188 transitions, 430 flow [2022-04-18 16:33:22,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 188 transitions, 430 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:22,918 INFO L242 Difference]: Finished difference. Result has 186 places, 186 transitions, 398 flow [2022-04-18 16:33:22,919 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=186, PETRI_TRANSITIONS=186} [2022-04-18 16:33:22,919 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -9 predicate places. [2022-04-18 16:33:22,919 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 186 transitions, 398 flow [2022-04-18 16:33:22,920 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,920 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:22,920 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 16:33:22,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:33:22,921 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:22,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash 128732277, now seen corresponding path program 1 times [2022-04-18 16:33:22,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:22,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758665911] [2022-04-18 16:33:22,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:22,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:22,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:22,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:22,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758665911] [2022-04-18 16:33:22,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758665911] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:22,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:22,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:22,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472488773] [2022-04-18 16:33:22,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:22,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:22,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:22,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:22,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:22,965 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 218 [2022-04-18 16:33:22,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 186 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:22,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:22,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 218 [2022-04-18 16:33:22,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,006 INFO L129 PetriNetUnfolder]: 24/325 cut-off events. [2022-04-18 16:33:23,007 INFO L130 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-04-18 16:33:23,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 325 events. 24/325 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1242 event pairs, 4 based on Foata normal form. 1/284 useless extension candidates. Maximal degree in co-relation 301. Up to 20 conditions per place. [2022-04-18 16:33:23,010 INFO L132 encePairwiseOnDemand]: 215/218 looper letters, 13 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2022-04-18 16:33:23,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 187 transitions, 432 flow [2022-04-18 16:33:23,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:23,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:23,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 619 transitions. [2022-04-18 16:33:23,011 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9464831804281345 [2022-04-18 16:33:23,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 619 transitions. [2022-04-18 16:33:23,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 619 transitions. [2022-04-18 16:33:23,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:23,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 619 transitions. [2022-04-18 16:33:23,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,015 INFO L186 Difference]: Start difference. First operand has 186 places, 186 transitions, 398 flow. Second operand 3 states and 619 transitions. [2022-04-18 16:33:23,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 187 transitions, 432 flow [2022-04-18 16:33:23,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 187 transitions, 432 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:23,017 INFO L242 Difference]: Finished difference. Result has 187 places, 185 transitions, 400 flow [2022-04-18 16:33:23,018 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=187, PETRI_TRANSITIONS=185} [2022-04-18 16:33:23,019 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -8 predicate places. [2022-04-18 16:33:23,020 INFO L478 AbstractCegarLoop]: Abstraction has has 187 places, 185 transitions, 400 flow [2022-04-18 16:33:23,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,020 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:23,020 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 16:33:23,021 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:33:23,021 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:23,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:23,022 INFO L85 PathProgramCache]: Analyzing trace with hash 100622320, now seen corresponding path program 1 times [2022-04-18 16:33:23,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:23,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155056450] [2022-04-18 16:33:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:23,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:23,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:23,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155056450] [2022-04-18 16:33:23,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155056450] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:23,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:23,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:23,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889479702] [2022-04-18 16:33:23,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:23,069 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:23,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:23,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:23,070 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 218 [2022-04-18 16:33:23,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 185 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:23,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 218 [2022-04-18 16:33:23,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,143 INFO L129 PetriNetUnfolder]: 160/843 cut-off events. [2022-04-18 16:33:23,144 INFO L130 PetriNetUnfolder]: For 31/46 co-relation queries the response was YES. [2022-04-18 16:33:23,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1081 conditions, 843 events. 160/843 cut-off events. For 31/46 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5441 event pairs, 52 based on Foata normal form. 0/730 useless extension candidates. Maximal degree in co-relation 802. Up to 202 conditions per place. [2022-04-18 16:33:23,151 INFO L132 encePairwiseOnDemand]: 212/218 looper letters, 18 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2022-04-18 16:33:23,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 185 transitions, 442 flow [2022-04-18 16:33:23,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:23,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 606 transitions. [2022-04-18 16:33:23,153 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.926605504587156 [2022-04-18 16:33:23,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 606 transitions. [2022-04-18 16:33:23,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 606 transitions. [2022-04-18 16:33:23,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:23,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 606 transitions. [2022-04-18 16:33:23,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,156 INFO L186 Difference]: Start difference. First operand has 187 places, 185 transitions, 400 flow. Second operand 3 states and 606 transitions. [2022-04-18 16:33:23,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 185 transitions, 442 flow [2022-04-18 16:33:23,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 185 transitions, 438 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:23,159 INFO L242 Difference]: Finished difference. Result has 184 places, 183 transitions, 402 flow [2022-04-18 16:33:23,159 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=184, PETRI_TRANSITIONS=183} [2022-04-18 16:33:23,160 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -11 predicate places. [2022-04-18 16:33:23,160 INFO L478 AbstractCegarLoop]: Abstraction has has 184 places, 183 transitions, 402 flow [2022-04-18 16:33:23,161 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,161 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:23,161 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] [2022-04-18 16:33:23,161 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:33:23,161 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:23,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:23,162 INFO L85 PathProgramCache]: Analyzing trace with hash -83671271, now seen corresponding path program 1 times [2022-04-18 16:33:23,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:23,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084852574] [2022-04-18 16:33:23,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:23,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:23,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:23,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084852574] [2022-04-18 16:33:23,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084852574] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:23,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:23,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:23,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604141825] [2022-04-18 16:33:23,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:23,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:23,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:23,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:23,188 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 218 [2022-04-18 16:33:23,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 183 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:23,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 218 [2022-04-18 16:33:23,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,232 INFO L129 PetriNetUnfolder]: 40/429 cut-off events. [2022-04-18 16:33:23,232 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-04-18 16:33:23,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 429 events. 40/429 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2030 event pairs, 6 based on Foata normal form. 1/384 useless extension candidates. Maximal degree in co-relation 353. Up to 29 conditions per place. [2022-04-18 16:33:23,236 INFO L132 encePairwiseOnDemand]: 215/218 looper letters, 16 selfloop transitions, 2 changer transitions 0/184 dead transitions. [2022-04-18 16:33:23,236 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 184 transitions, 442 flow [2022-04-18 16:33:23,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2022-04-18 16:33:23,238 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9373088685015291 [2022-04-18 16:33:23,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 613 transitions. [2022-04-18 16:33:23,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 613 transitions. [2022-04-18 16:33:23,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:23,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 613 transitions. [2022-04-18 16:33:23,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,256 INFO L186 Difference]: Start difference. First operand has 184 places, 183 transitions, 402 flow. Second operand 3 states and 613 transitions. [2022-04-18 16:33:23,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 184 transitions, 442 flow [2022-04-18 16:33:23,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 184 transitions, 442 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:23,259 INFO L242 Difference]: Finished difference. Result has 185 places, 182 transitions, 404 flow [2022-04-18 16:33:23,260 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=185, PETRI_TRANSITIONS=182} [2022-04-18 16:33:23,260 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -10 predicate places. [2022-04-18 16:33:23,260 INFO L478 AbstractCegarLoop]: Abstraction has has 185 places, 182 transitions, 404 flow [2022-04-18 16:33:23,261 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,261 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:23,261 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] [2022-04-18 16:33:23,261 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:33:23,261 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:23,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1534267114, now seen corresponding path program 1 times [2022-04-18 16:33:23,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:23,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561451166] [2022-04-18 16:33:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:23,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:23,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561451166] [2022-04-18 16:33:23,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561451166] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:23,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:23,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:23,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513313917] [2022-04-18 16:33:23,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:23,341 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:23,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:23,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:23,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:23,342 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 218 [2022-04-18 16:33:23,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 182 transitions, 404 flow. Second operand has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:23,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 218 [2022-04-18 16:33:23,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,401 INFO L129 PetriNetUnfolder]: 21/293 cut-off events. [2022-04-18 16:33:23,401 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:23,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 293 events. 21/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 953 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 294. Up to 17 conditions per place. [2022-04-18 16:33:23,404 INFO L132 encePairwiseOnDemand]: 213/218 looper letters, 23 selfloop transitions, 4 changer transitions 0/181 dead transitions. [2022-04-18 16:33:23,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 181 transitions, 456 flow [2022-04-18 16:33:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:23,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2022-04-18 16:33:23,407 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8700305810397554 [2022-04-18 16:33:23,407 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1138 transitions. [2022-04-18 16:33:23,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1138 transitions. [2022-04-18 16:33:23,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:23,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1138 transitions. [2022-04-18 16:33:23,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,411 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,411 INFO L186 Difference]: Start difference. First operand has 185 places, 182 transitions, 404 flow. Second operand 6 states and 1138 transitions. [2022-04-18 16:33:23,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 181 transitions, 456 flow [2022-04-18 16:33:23,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 181 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:23,414 INFO L242 Difference]: Finished difference. Result has 187 places, 181 transitions, 406 flow [2022-04-18 16:33:23,414 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=406, PETRI_PLACES=187, PETRI_TRANSITIONS=181} [2022-04-18 16:33:23,415 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -8 predicate places. [2022-04-18 16:33:23,415 INFO L478 AbstractCegarLoop]: Abstraction has has 187 places, 181 transitions, 406 flow [2022-04-18 16:33:23,415 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,415 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:23,416 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:23,416 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:33:23,416 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:23,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash -305117062, now seen corresponding path program 1 times [2022-04-18 16:33:23,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:23,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427552759] [2022-04-18 16:33:23,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:23,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:23,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:23,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427552759] [2022-04-18 16:33:23,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427552759] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:23,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:23,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:23,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583369988] [2022-04-18 16:33:23,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:23,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:23,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:23,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:23,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:23,440 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 218 [2022-04-18 16:33:23,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 181 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:23,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 218 [2022-04-18 16:33:23,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,475 INFO L129 PetriNetUnfolder]: 33/324 cut-off events. [2022-04-18 16:33:23,475 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-04-18 16:33:23,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 324 events. 33/324 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1241 event pairs, 6 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 340. Up to 34 conditions per place. [2022-04-18 16:33:23,478 INFO L132 encePairwiseOnDemand]: 215/218 looper letters, 15 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2022-04-18 16:33:23,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 182 transitions, 444 flow [2022-04-18 16:33:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2022-04-18 16:33:23,480 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9357798165137615 [2022-04-18 16:33:23,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 612 transitions. [2022-04-18 16:33:23,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 612 transitions. [2022-04-18 16:33:23,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:23,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 612 transitions. [2022-04-18 16:33:23,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,483 INFO L186 Difference]: Start difference. First operand has 187 places, 181 transitions, 406 flow. Second operand 3 states and 612 transitions. [2022-04-18 16:33:23,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 182 transitions, 444 flow [2022-04-18 16:33:23,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 182 transitions, 437 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:23,486 INFO L242 Difference]: Finished difference. Result has 184 places, 180 transitions, 401 flow [2022-04-18 16:33:23,486 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=401, PETRI_PLACES=184, PETRI_TRANSITIONS=180} [2022-04-18 16:33:23,487 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -11 predicate places. [2022-04-18 16:33:23,487 INFO L478 AbstractCegarLoop]: Abstraction has has 184 places, 180 transitions, 401 flow [2022-04-18 16:33:23,487 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,487 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:23,488 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:23,488 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:33:23,488 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:23,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:23,488 INFO L85 PathProgramCache]: Analyzing trace with hash -25964467, now seen corresponding path program 1 times [2022-04-18 16:33:23,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:23,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907481154] [2022-04-18 16:33:23,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:23,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:23,569 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 16:33:23,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:23,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907481154] [2022-04-18 16:33:23,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907481154] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:23,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:23,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:23,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507531071] [2022-04-18 16:33:23,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:23,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:23,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:23,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:23,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:23,572 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 218 [2022-04-18 16:33:23,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 180 transitions, 401 flow. Second operand has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:23,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 218 [2022-04-18 16:33:23,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,639 INFO L129 PetriNetUnfolder]: 21/287 cut-off events. [2022-04-18 16:33:23,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:23,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 287 events. 21/287 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 911 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 283. Up to 14 conditions per place. [2022-04-18 16:33:23,642 INFO L132 encePairwiseOnDemand]: 213/218 looper letters, 22 selfloop transitions, 4 changer transitions 0/179 dead transitions. [2022-04-18 16:33:23,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 179 transitions, 451 flow [2022-04-18 16:33:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1137 transitions. [2022-04-18 16:33:23,644 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8692660550458715 [2022-04-18 16:33:23,644 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1137 transitions. [2022-04-18 16:33:23,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1137 transitions. [2022-04-18 16:33:23,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:23,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1137 transitions. [2022-04-18 16:33:23,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.5) internal successors, (1137), 6 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,649 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,649 INFO L186 Difference]: Start difference. First operand has 184 places, 180 transitions, 401 flow. Second operand 6 states and 1137 transitions. [2022-04-18 16:33:23,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 179 transitions, 451 flow [2022-04-18 16:33:23,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 179 transitions, 447 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:23,651 INFO L242 Difference]: Finished difference. Result has 186 places, 179 transitions, 403 flow [2022-04-18 16:33:23,652 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=186, PETRI_TRANSITIONS=179} [2022-04-18 16:33:23,652 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -9 predicate places. [2022-04-18 16:33:23,653 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 179 transitions, 403 flow [2022-04-18 16:33:23,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.0) internal successors, (1128), 6 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,653 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:23,653 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] [2022-04-18 16:33:23,653 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:33:23,654 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:23,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:23,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1492683932, now seen corresponding path program 1 times [2022-04-18 16:33:23,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:23,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796280336] [2022-04-18 16:33:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:23,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796280336] [2022-04-18 16:33:23,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796280336] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:23,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:23,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:23,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269741445] [2022-04-18 16:33:23,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:23,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:23,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:23,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:23,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:23,730 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 218 [2022-04-18 16:33:23,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 179 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:23,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 218 [2022-04-18 16:33:23,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,784 INFO L129 PetriNetUnfolder]: 21/286 cut-off events. [2022-04-18 16:33:23,784 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 16:33:23,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 286 events. 21/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 909 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 291. Up to 20 conditions per place. [2022-04-18 16:33:23,787 INFO L132 encePairwiseOnDemand]: 213/218 looper letters, 21 selfloop transitions, 4 changer transitions 0/178 dead transitions. [2022-04-18 16:33:23,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 178 transitions, 451 flow [2022-04-18 16:33:23,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:23,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:23,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1136 transitions. [2022-04-18 16:33:23,790 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8685015290519877 [2022-04-18 16:33:23,790 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1136 transitions. [2022-04-18 16:33:23,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1136 transitions. [2022-04-18 16:33:23,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:23,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1136 transitions. [2022-04-18 16:33:23,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,794 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,794 INFO L186 Difference]: Start difference. First operand has 186 places, 179 transitions, 403 flow. Second operand 6 states and 1136 transitions. [2022-04-18 16:33:23,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 178 transitions, 451 flow [2022-04-18 16:33:23,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 178 transitions, 444 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:23,797 INFO L242 Difference]: Finished difference. Result has 186 places, 178 transitions, 402 flow [2022-04-18 16:33:23,798 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=186, PETRI_TRANSITIONS=178} [2022-04-18 16:33:23,798 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -9 predicate places. [2022-04-18 16:33:23,799 INFO L478 AbstractCegarLoop]: Abstraction has has 186 places, 178 transitions, 402 flow [2022-04-18 16:33:23,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,799 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:23,800 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] [2022-04-18 16:33:23,800 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:33:23,800 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:23,800 INFO L85 PathProgramCache]: Analyzing trace with hash -619657349, now seen corresponding path program 1 times [2022-04-18 16:33:23,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:23,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747484199] [2022-04-18 16:33:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:23,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:23,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:23,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747484199] [2022-04-18 16:33:23,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747484199] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:23,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:23,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:23,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734076300] [2022-04-18 16:33:23,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:23,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:23,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:23,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:23,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:23,838 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 218 [2022-04-18 16:33:23,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 178 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:23,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 218 [2022-04-18 16:33:23,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,873 INFO L129 PetriNetUnfolder]: 32/384 cut-off events. [2022-04-18 16:33:23,873 INFO L130 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2022-04-18 16:33:23,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 384 events. 32/384 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1613 event pairs, 4 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 415. Up to 17 conditions per place. [2022-04-18 16:33:23,877 INFO L132 encePairwiseOnDemand]: 216/218 looper letters, 9 selfloop transitions, 1 changer transitions 0/177 dead transitions. [2022-04-18 16:33:23,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 177 transitions, 420 flow [2022-04-18 16:33:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:23,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:23,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 620 transitions. [2022-04-18 16:33:23,879 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9480122324159022 [2022-04-18 16:33:23,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 620 transitions. [2022-04-18 16:33:23,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 620 transitions. [2022-04-18 16:33:23,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:23,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 620 transitions. [2022-04-18 16:33:23,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.66666666666666) internal successors, (620), 3 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,882 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,882 INFO L186 Difference]: Start difference. First operand has 186 places, 178 transitions, 402 flow. Second operand 3 states and 620 transitions. [2022-04-18 16:33:23,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 177 transitions, 420 flow [2022-04-18 16:33:23,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 177 transitions, 413 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:23,884 INFO L242 Difference]: Finished difference. Result has 183 places, 177 transitions, 395 flow [2022-04-18 16:33:23,885 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=395, PETRI_PLACES=183, PETRI_TRANSITIONS=177} [2022-04-18 16:33:23,885 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -12 predicate places. [2022-04-18 16:33:23,886 INFO L478 AbstractCegarLoop]: Abstraction has has 183 places, 177 transitions, 395 flow [2022-04-18 16:33:23,886 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,886 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:23,886 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:23,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:33:23,887 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:23,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:23,887 INFO L85 PathProgramCache]: Analyzing trace with hash -773973984, now seen corresponding path program 1 times [2022-04-18 16:33:23,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:23,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289114561] [2022-04-18 16:33:23,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:23,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:23,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:23,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:23,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289114561] [2022-04-18 16:33:23,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289114561] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:23,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:23,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:23,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184036621] [2022-04-18 16:33:23,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:23,951 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:23,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:23,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:23,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:23,952 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 218 [2022-04-18 16:33:23,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 177 transitions, 395 flow. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:23,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:23,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 218 [2022-04-18 16:33:23,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:23,994 INFO L129 PetriNetUnfolder]: 34/403 cut-off events. [2022-04-18 16:33:23,995 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-04-18 16:33:23,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 403 events. 34/403 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1729 event pairs, 6 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 454. Up to 23 conditions per place. [2022-04-18 16:33:23,998 INFO L132 encePairwiseOnDemand]: 215/218 looper letters, 11 selfloop transitions, 1 changer transitions 0/175 dead transitions. [2022-04-18 16:33:23,999 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 175 transitions, 415 flow [2022-04-18 16:33:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:23,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 614 transitions. [2022-04-18 16:33:24,000 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9388379204892966 [2022-04-18 16:33:24,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 614 transitions. [2022-04-18 16:33:24,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 614 transitions. [2022-04-18 16:33:24,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:24,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 614 transitions. [2022-04-18 16:33:24,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,003 INFO L186 Difference]: Start difference. First operand has 183 places, 177 transitions, 395 flow. Second operand 3 states and 614 transitions. [2022-04-18 16:33:24,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 175 transitions, 415 flow [2022-04-18 16:33:24,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 175 transitions, 414 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:24,006 INFO L242 Difference]: Finished difference. Result has 182 places, 175 transitions, 392 flow [2022-04-18 16:33:24,006 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=182, PETRI_TRANSITIONS=175} [2022-04-18 16:33:24,008 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -13 predicate places. [2022-04-18 16:33:24,008 INFO L478 AbstractCegarLoop]: Abstraction has has 182 places, 175 transitions, 392 flow [2022-04-18 16:33:24,008 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,008 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:24,009 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] [2022-04-18 16:33:24,009 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:33:24,009 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:24,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2063696102, now seen corresponding path program 1 times [2022-04-18 16:33:24,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:24,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731525576] [2022-04-18 16:33:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:24,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:24,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:24,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731525576] [2022-04-18 16:33:24,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731525576] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:24,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:24,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:24,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247373165] [2022-04-18 16:33:24,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:24,055 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:24,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:24,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:24,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:24,057 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 218 [2022-04-18 16:33:24,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 175 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:24,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 218 [2022-04-18 16:33:24,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:24,089 INFO L129 PetriNetUnfolder]: 27/308 cut-off events. [2022-04-18 16:33:24,089 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:33:24,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 308 events. 27/308 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1097 event pairs, 6 based on Foata normal form. 1/290 useless extension candidates. Maximal degree in co-relation 360. Up to 29 conditions per place. [2022-04-18 16:33:24,091 INFO L132 encePairwiseOnDemand]: 215/218 looper letters, 0 selfloop transitions, 0 changer transitions 173/173 dead transitions. [2022-04-18 16:33:24,091 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 173 transitions, 410 flow [2022-04-18 16:33:24,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:24,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 613 transitions. [2022-04-18 16:33:24,093 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9373088685015291 [2022-04-18 16:33:24,093 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 613 transitions. [2022-04-18 16:33:24,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 613 transitions. [2022-04-18 16:33:24,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:24,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 613 transitions. [2022-04-18 16:33:24,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 218.0) internal successors, (872), 4 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,096 INFO L186 Difference]: Start difference. First operand has 182 places, 175 transitions, 392 flow. Second operand 3 states and 613 transitions. [2022-04-18 16:33:24,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 173 transitions, 410 flow [2022-04-18 16:33:24,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 173 transitions, 409 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:24,098 INFO L242 Difference]: Finished difference. Result has 181 places, 0 transitions, 0 flow [2022-04-18 16:33:24,099 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=181, PETRI_TRANSITIONS=0} [2022-04-18 16:33:24,099 INFO L335 CegarLoopForPetriNet]: 195 programPoint places, -14 predicate places. [2022-04-18 16:33:24,100 INFO L478 AbstractCegarLoop]: Abstraction has has 181 places, 0 transitions, 0 flow [2022-04-18 16:33:24,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:24,102 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2022-04-18 16:33:24,102 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-04-18 16:33:24,103 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-04-18 16:33:24,103 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-04-18 16:33:24,103 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-04-18 16:33:24,103 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-04-18 16:33:24,104 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-04-18 16:33:24,104 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-04-18 16:33:24,104 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-04-18 16:33:24,105 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-04-18 16:33:24,105 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-04-18 16:33:24,105 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-04-18 16:33:24,106 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-04-18 16:33:24,106 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-04-18 16:33:24,106 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-04-18 16:33:24,106 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-04-18 16:33:24,106 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-04-18 16:33:24,106 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-04-18 16:33:24,106 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-04-18 16:33:24,107 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2022-04-18 16:33:24,107 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-04-18 16:33:24,107 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-04-18 16:33:24,107 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2022-04-18 16:33:24,107 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2022-04-18 16:33:24,107 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2022-04-18 16:33:24,107 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2022-04-18 16:33:24,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-04-18 16:33:24,108 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-04-18 16:33:24,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-04-18 16:33:24,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-04-18 16:33:24,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-04-18 16:33:24,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-04-18 16:33:24,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-04-18 16:33:24,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-04-18 16:33:24,109 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-04-18 16:33:24,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-04-18 16:33:24,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-04-18 16:33:24,110 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-04-18 16:33:24,110 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:33:24,113 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:24,116 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:33:24,117 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:33:24,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:33:24 BasicIcfg [2022-04-18 16:33:24,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:33:24,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:33:24,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:33:24,120 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:33:24,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:21" (3/4) ... [2022-04-18 16:33:24,122 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:33:24,126 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:33:24,126 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:33:24,126 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:33:24,131 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-04-18 16:33:24,131 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:33:24,131 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:33:24,131 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:33:24,154 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:33:24,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:33:24,154 INFO L158 Benchmark]: Toolchain (without parser) took 3155.06ms. Allocated memory was 134.2MB in the beginning and 247.5MB in the end (delta: 113.2MB). Free memory was 102.1MB in the beginning and 146.2MB in the end (delta: -44.1MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2022-04-18 16:33:24,155 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 81.8MB. Free memory was 40.5MB in the beginning and 40.4MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:33:24,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.08ms. Allocated memory is still 134.2MB. Free memory was 101.8MB in the beginning and 107.9MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:33:24,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.89ms. Allocated memory is still 134.2MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:24,155 INFO L158 Benchmark]: Boogie Preprocessor took 17.70ms. Allocated memory is still 134.2MB. Free memory was 105.8MB in the beginning and 104.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:33:24,155 INFO L158 Benchmark]: RCFGBuilder took 400.60ms. Allocated memory is still 134.2MB. Free memory was 104.4MB in the beginning and 87.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-04-18 16:33:24,156 INFO L158 Benchmark]: TraceAbstraction took 2316.02ms. Allocated memory was 134.2MB in the beginning and 247.5MB in the end (delta: 113.2MB). Free memory was 87.2MB in the beginning and 149.3MB in the end (delta: -62.1MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. [2022-04-18 16:33:24,156 INFO L158 Benchmark]: Witness Printer took 33.88ms. Allocated memory is still 247.5MB. Free memory was 149.3MB in the beginning and 146.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:33:24,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 81.8MB. Free memory was 40.5MB in the beginning and 40.4MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.08ms. Allocated memory is still 134.2MB. Free memory was 101.8MB in the beginning and 107.9MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.89ms. Allocated memory is still 134.2MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.70ms. Allocated memory is still 134.2MB. Free memory was 105.8MB in the beginning and 104.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 400.60ms. Allocated memory is still 134.2MB. Free memory was 104.4MB in the beginning and 87.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2316.02ms. Allocated memory was 134.2MB in the beginning and 247.5MB in the end (delta: 113.2MB). Free memory was 87.2MB in the beginning and 149.3MB in the end (delta: -62.1MB). Peak memory consumption was 51.5MB. Max. memory is 16.1GB. * Witness Printer took 33.88ms. Allocated memory is still 247.5MB. Free memory was 149.3MB in the beginning and 146.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 291 locations, 38 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 124 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=406occurred in iteration=9, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1075 NumberOfCodeBlocks, 1075 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1060 ConstructedInterpolants, 0 QuantifiedInterpolants, 1327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 23 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:33:24,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE