./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x3.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/bench-exp2x3.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 ebb6bba6491ab996b2a2d1f88baf86906cd5ba5ce7e0ad4dc20017ded9089a97 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:31:38,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:31:38,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:31:38,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:31:38,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:31:38,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:31:38,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:31:38,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:31:38,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:31:38,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:31:38,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:31:38,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:31:38,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:31:38,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:31:38,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:31:38,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:31:38,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:31:38,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:31:38,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:31:38,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:31:38,244 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:31:38,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:31:38,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:31:38,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:31:38,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:31:38,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:31:38,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:31:38,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:31:38,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:31:38,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:31:38,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:31:38,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:31:38,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:31:38,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:31:38,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:31:38,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:31:38,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:31:38,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:31:38,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:31:38,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:31:38,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:31:38,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:31:38,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:31:38,298 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:31:38,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:31:38,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:31:38,299 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:31:38,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:31:38,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:31:38,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:31:38,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:31:38,307 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:31:38,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:31:38,307 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:31:38,307 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:31:38,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:31:38,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:31:38,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:31:38,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:31:38,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:31:38,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:31:38,308 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:31:38,309 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:31:38,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:31:38,309 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:31:38,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:31:38,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:31:38,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:31:38,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:31:38,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:31:38,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:31:38,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:31:38,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:31:38,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:31:38,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:31:38,311 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:31:38,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:31:38,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:31:38,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebb6bba6491ab996b2a2d1f88baf86906cd5ba5ce7e0ad4dc20017ded9089a97 [2022-04-18 16:31:38,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:31:38,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:31:38,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:31:38,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:31:38,587 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:31:38,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x3.wvr.c [2022-04-18 16:31:38,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40fa8a8f9/43cedf0166c04ba6b15ee17e4f572eaf/FLAGbd56f27c9 [2022-04-18 16:31:39,064 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:31:39,064 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x3.wvr.c [2022-04-18 16:31:39,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40fa8a8f9/43cedf0166c04ba6b15ee17e4f572eaf/FLAGbd56f27c9 [2022-04-18 16:31:39,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40fa8a8f9/43cedf0166c04ba6b15ee17e4f572eaf [2022-04-18 16:31:39,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:31:39,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:31:39,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:31:39,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:31:39,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:31:39,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@685cbd3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39, skipping insertion in model container [2022-04-18 16:31:39,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:31:39,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:31:39,297 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/bench-exp2x3.wvr.c[2237,2250] [2022-04-18 16:31:39,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:31:39,305 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:31:39,328 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/bench-exp2x3.wvr.c[2237,2250] [2022-04-18 16:31:39,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:31:39,341 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:31:39,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39 WrapperNode [2022-04-18 16:31:39,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:31:39,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:31:39,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:31:39,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:31:39,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,383 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 167 [2022-04-18 16:31:39,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:31:39,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:31:39,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:31:39,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:31:39,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:31:39,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:31:39,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:31:39,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:31:39,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (1/1) ... [2022-04-18 16:31:39,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:31:39,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:31:39,448 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 16:31:39,451 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 16:31:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:31:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:31:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:31:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:31:39,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:31:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:31:39,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:31:39,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-04-18 16:31:39,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-04-18 16:31:39,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:31:39,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:31:39,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:31:39,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:31:39,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:31:39,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:31:39,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:31:39,487 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 16:31:39,560 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:31:39,562 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:31:39,949 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:31:39,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:31:39,960 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-04-18 16:31:39,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:31:39 BoogieIcfgContainer [2022-04-18 16:31:39,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:31:39,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:31:39,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:31:39,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:31:39,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:31:39" (1/3) ... [2022-04-18 16:31:39,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79776e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:31:39, skipping insertion in model container [2022-04-18 16:31:39,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:31:39" (2/3) ... [2022-04-18 16:31:39,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79776e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:31:39, skipping insertion in model container [2022-04-18 16:31:39,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:31:39" (3/3) ... [2022-04-18 16:31:39,969 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x3.wvr.c [2022-04-18 16:31:39,973 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:31:39,973 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:31:39,974 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2022-04-18 16:31:39,974 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:31:40,072 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-04-18 16:31:40,141 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:31:40,147 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 16:31:40,148 INFO L341 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-04-18 16:31:40,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 290 places, 291 transitions, 614 flow [2022-04-18 16:31:40,244 INFO L129 PetriNetUnfolder]: 14/287 cut-off events. [2022-04-18 16:31:40,249 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-04-18 16:31:40,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 287 events. 14/287 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 413 event pairs, 0 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 193. Up to 2 conditions per place. [2022-04-18 16:31:40,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 291 transitions, 614 flow [2022-04-18 16:31:40,267 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 262 transitions, 548 flow [2022-04-18 16:31:40,272 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2022-04-18 16:31:40,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:31:40,273 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:40,273 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 16:31:40,274 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:40,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:40,279 INFO L85 PathProgramCache]: Analyzing trace with hash -243794301, now seen corresponding path program 1 times [2022-04-18 16:31:40,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:40,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432465270] [2022-04-18 16:31:40,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:40,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:40,477 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 16:31:40,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:40,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432465270] [2022-04-18 16:31:40,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432465270] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:40,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:40,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:40,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924601556] [2022-04-18 16:31:40,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:40,488 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:40,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:40,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:40,524 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 291 [2022-04-18 16:31:40,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 262 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:40,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:40,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 291 [2022-04-18 16:31:40,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:40,719 INFO L129 PetriNetUnfolder]: 46/358 cut-off events. [2022-04-18 16:31:40,719 INFO L130 PetriNetUnfolder]: For 59/66 co-relation queries the response was YES. [2022-04-18 16:31:40,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 358 events. 46/358 cut-off events. For 59/66 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1291 event pairs, 36 based on Foata normal form. 85/371 useless extension candidates. Maximal degree in co-relation 382. Up to 105 conditions per place. [2022-04-18 16:31:40,729 INFO L132 encePairwiseOnDemand]: 283/291 looper letters, 32 selfloop transitions, 2 changer transitions 1/256 dead transitions. [2022-04-18 16:31:40,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 256 transitions, 604 flow [2022-04-18 16:31:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:40,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2022-04-18 16:31:40,750 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9014891179839634 [2022-04-18 16:31:40,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2022-04-18 16:31:40,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2022-04-18 16:31:40,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:40,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2022-04-18 16:31:40,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:40,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:40,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:40,776 INFO L186 Difference]: Start difference. First operand has 263 places, 262 transitions, 548 flow. Second operand 3 states and 787 transitions. [2022-04-18 16:31:40,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 256 transitions, 604 flow [2022-04-18 16:31:40,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 256 transitions, 588 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-04-18 16:31:40,789 INFO L242 Difference]: Finished difference. Result has 256 places, 255 transitions, 522 flow [2022-04-18 16:31:40,791 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=256, PETRI_TRANSITIONS=255} [2022-04-18 16:31:40,795 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -7 predicate places. [2022-04-18 16:31:40,796 INFO L478 AbstractCegarLoop]: Abstraction has has 256 places, 255 transitions, 522 flow [2022-04-18 16:31:40,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:40,797 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:40,798 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 16:31:40,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:31:40,799 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:40,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:40,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1262202821, now seen corresponding path program 1 times [2022-04-18 16:31:40,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:40,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779678778] [2022-04-18 16:31:40,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:40,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:40,887 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 16:31:40,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:40,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779678778] [2022-04-18 16:31:40,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779678778] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:40,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:40,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:40,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864201953] [2022-04-18 16:31:40,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:40,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:40,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:40,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:40,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:40,901 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 291 [2022-04-18 16:31:40,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 255 transitions, 522 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:40,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:40,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 291 [2022-04-18 16:31:40,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:41,016 INFO L129 PetriNetUnfolder]: 46/356 cut-off events. [2022-04-18 16:31:41,017 INFO L130 PetriNetUnfolder]: For 16/22 co-relation queries the response was YES. [2022-04-18 16:31:41,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 356 events. 46/356 cut-off events. For 16/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1257 event pairs, 36 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 459. Up to 102 conditions per place. [2022-04-18 16:31:41,023 INFO L132 encePairwiseOnDemand]: 288/291 looper letters, 29 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2022-04-18 16:31:41,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 254 transitions, 582 flow [2022-04-18 16:31:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2022-04-18 16:31:41,027 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9026345933562429 [2022-04-18 16:31:41,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2022-04-18 16:31:41,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2022-04-18 16:31:41,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:41,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2022-04-18 16:31:41,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,032 INFO L186 Difference]: Start difference. First operand has 256 places, 255 transitions, 522 flow. Second operand 3 states and 788 transitions. [2022-04-18 16:31:41,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 254 transitions, 582 flow [2022-04-18 16:31:41,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 254 transitions, 578 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:41,054 INFO L242 Difference]: Finished difference. Result has 254 places, 254 transitions, 520 flow [2022-04-18 16:31:41,055 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=520, PETRI_PLACES=254, PETRI_TRANSITIONS=254} [2022-04-18 16:31:41,055 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -9 predicate places. [2022-04-18 16:31:41,056 INFO L478 AbstractCegarLoop]: Abstraction has has 254 places, 254 transitions, 520 flow [2022-04-18 16:31:41,056 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,056 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:41,056 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 16:31:41,057 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:31:41,057 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:41,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:41,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1305308557, now seen corresponding path program 1 times [2022-04-18 16:31:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:41,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572536081] [2022-04-18 16:31:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:41,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:41,094 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 16:31:41,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:41,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572536081] [2022-04-18 16:31:41,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572536081] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:41,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:41,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:41,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092753583] [2022-04-18 16:31:41,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:41,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:41,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:41,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:41,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:41,098 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 291 [2022-04-18 16:31:41,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 254 transitions, 520 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:41,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 291 [2022-04-18 16:31:41,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:41,186 INFO L129 PetriNetUnfolder]: 46/355 cut-off events. [2022-04-18 16:31:41,186 INFO L130 PetriNetUnfolder]: For 28/34 co-relation queries the response was YES. [2022-04-18 16:31:41,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 355 events. 46/355 cut-off events. For 28/34 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1249 event pairs, 36 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 443. Up to 105 conditions per place. [2022-04-18 16:31:41,193 INFO L132 encePairwiseOnDemand]: 288/291 looper letters, 32 selfloop transitions, 2 changer transitions 0/253 dead transitions. [2022-04-18 16:31:41,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 253 transitions, 586 flow [2022-04-18 16:31:41,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:41,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 782 transitions. [2022-04-18 16:31:41,196 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8957617411225659 [2022-04-18 16:31:41,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 782 transitions. [2022-04-18 16:31:41,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 782 transitions. [2022-04-18 16:31:41,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:41,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 782 transitions. [2022-04-18 16:31:41,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,201 INFO L186 Difference]: Start difference. First operand has 254 places, 254 transitions, 520 flow. Second operand 3 states and 782 transitions. [2022-04-18 16:31:41,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 253 transitions, 586 flow [2022-04-18 16:31:41,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 253 transitions, 582 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:41,207 INFO L242 Difference]: Finished difference. Result has 253 places, 253 transitions, 518 flow [2022-04-18 16:31:41,208 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=253, PETRI_TRANSITIONS=253} [2022-04-18 16:31:41,208 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -10 predicate places. [2022-04-18 16:31:41,209 INFO L478 AbstractCegarLoop]: Abstraction has has 253 places, 253 transitions, 518 flow [2022-04-18 16:31:41,209 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,209 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:41,210 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:41,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:31:41,210 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:41,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2073508183, now seen corresponding path program 1 times [2022-04-18 16:31:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:41,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533654366] [2022-04-18 16:31:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:41,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:41,245 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 16:31:41,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:41,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533654366] [2022-04-18 16:31:41,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533654366] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:41,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:41,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:41,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756791583] [2022-04-18 16:31:41,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:41,247 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:41,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:41,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:41,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:41,250 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 291 [2022-04-18 16:31:41,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 253 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:41,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 291 [2022-04-18 16:31:41,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:41,357 INFO L129 PetriNetUnfolder]: 46/354 cut-off events. [2022-04-18 16:31:41,357 INFO L130 PetriNetUnfolder]: For 40/46 co-relation queries the response was YES. [2022-04-18 16:31:41,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 354 events. 46/354 cut-off events. For 40/46 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1220 event pairs, 36 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 420. Up to 101 conditions per place. [2022-04-18 16:31:41,361 INFO L132 encePairwiseOnDemand]: 288/291 looper letters, 28 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2022-04-18 16:31:41,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 252 transitions, 576 flow [2022-04-18 16:31:41,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:41,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2022-04-18 16:31:41,364 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9014891179839634 [2022-04-18 16:31:41,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2022-04-18 16:31:41,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2022-04-18 16:31:41,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:41,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2022-04-18 16:31:41,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,369 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,369 INFO L186 Difference]: Start difference. First operand has 253 places, 253 transitions, 518 flow. Second operand 3 states and 787 transitions. [2022-04-18 16:31:41,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 252 transitions, 576 flow [2022-04-18 16:31:41,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 252 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:41,374 INFO L242 Difference]: Finished difference. Result has 252 places, 252 transitions, 516 flow [2022-04-18 16:31:41,375 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=252, PETRI_TRANSITIONS=252} [2022-04-18 16:31:41,376 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -11 predicate places. [2022-04-18 16:31:41,376 INFO L478 AbstractCegarLoop]: Abstraction has has 252 places, 252 transitions, 516 flow [2022-04-18 16:31:41,376 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,376 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:41,377 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:41,377 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:31:41,377 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:41,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1517098581, now seen corresponding path program 1 times [2022-04-18 16:31:41,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:41,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679671563] [2022-04-18 16:31:41,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:41,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:41,410 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 16:31:41,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:41,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679671563] [2022-04-18 16:31:41,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679671563] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:41,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:41,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:41,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388684649] [2022-04-18 16:31:41,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:41,412 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:41,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:41,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:41,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:41,415 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 291 [2022-04-18 16:31:41,416 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 252 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:41,416 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:41,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 291 [2022-04-18 16:31:41,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:42,018 INFO L129 PetriNetUnfolder]: 1030/4223 cut-off events. [2022-04-18 16:31:42,019 INFO L130 PetriNetUnfolder]: For 85/193 co-relation queries the response was YES. [2022-04-18 16:31:42,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5598 conditions, 4223 events. 1030/4223 cut-off events. For 85/193 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 41376 event pairs, 855 based on Foata normal form. 0/3110 useless extension candidates. Maximal degree in co-relation 5547. Up to 1284 conditions per place. [2022-04-18 16:31:42,088 INFO L132 encePairwiseOnDemand]: 288/291 looper letters, 23 selfloop transitions, 2 changer transitions 0/251 dead transitions. [2022-04-18 16:31:42,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 251 transitions, 564 flow [2022-04-18 16:31:42,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:42,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:42,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2022-04-18 16:31:42,091 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9163802978235968 [2022-04-18 16:31:42,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 800 transitions. [2022-04-18 16:31:42,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 800 transitions. [2022-04-18 16:31:42,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:42,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 800 transitions. [2022-04-18 16:31:42,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.6666666666667) internal successors, (800), 3 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,096 INFO L186 Difference]: Start difference. First operand has 252 places, 252 transitions, 516 flow. Second operand 3 states and 800 transitions. [2022-04-18 16:31:42,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 251 transitions, 564 flow [2022-04-18 16:31:42,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 251 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:42,101 INFO L242 Difference]: Finished difference. Result has 251 places, 251 transitions, 514 flow [2022-04-18 16:31:42,102 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=251, PETRI_TRANSITIONS=251} [2022-04-18 16:31:42,104 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -12 predicate places. [2022-04-18 16:31:42,104 INFO L478 AbstractCegarLoop]: Abstraction has has 251 places, 251 transitions, 514 flow [2022-04-18 16:31:42,105 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,105 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:42,105 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 16:31:42,105 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:31:42,106 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:42,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1782789952, now seen corresponding path program 1 times [2022-04-18 16:31:42,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:42,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864422341] [2022-04-18 16:31:42,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:42,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:42,154 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 16:31:42,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:42,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864422341] [2022-04-18 16:31:42,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864422341] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:42,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:42,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:42,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940142236] [2022-04-18 16:31:42,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:42,156 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:42,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:42,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:42,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:42,158 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 291 [2022-04-18 16:31:42,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 251 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:42,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 291 [2022-04-18 16:31:42,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:42,265 INFO L129 PetriNetUnfolder]: 37/333 cut-off events. [2022-04-18 16:31:42,265 INFO L130 PetriNetUnfolder]: For 4/9 co-relation queries the response was YES. [2022-04-18 16:31:42,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 333 events. 37/333 cut-off events. For 4/9 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1079 event pairs, 18 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 394. Up to 60 conditions per place. [2022-04-18 16:31:42,269 INFO L132 encePairwiseOnDemand]: 282/291 looper letters, 26 selfloop transitions, 3 changer transitions 0/249 dead transitions. [2022-04-18 16:31:42,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 249 transitions, 571 flow [2022-04-18 16:31:42,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:42,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:42,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2022-04-18 16:31:42,272 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9060710194730813 [2022-04-18 16:31:42,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 791 transitions. [2022-04-18 16:31:42,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 791 transitions. [2022-04-18 16:31:42,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:42,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 791 transitions. [2022-04-18 16:31:42,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.6666666666667) internal successors, (791), 3 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,276 INFO L186 Difference]: Start difference. First operand has 251 places, 251 transitions, 514 flow. Second operand 3 states and 791 transitions. [2022-04-18 16:31:42,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 249 transitions, 571 flow [2022-04-18 16:31:42,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 249 transitions, 567 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:42,281 INFO L242 Difference]: Finished difference. Result has 246 places, 246 transitions, 511 flow [2022-04-18 16:31:42,281 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=246, PETRI_TRANSITIONS=246} [2022-04-18 16:31:42,282 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -17 predicate places. [2022-04-18 16:31:42,282 INFO L478 AbstractCegarLoop]: Abstraction has has 246 places, 246 transitions, 511 flow [2022-04-18 16:31:42,283 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,283 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:42,283 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:42,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:31:42,283 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:42,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:42,284 INFO L85 PathProgramCache]: Analyzing trace with hash -430794589, now seen corresponding path program 1 times [2022-04-18 16:31:42,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:42,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987306057] [2022-04-18 16:31:42,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:42,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:42,312 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 16:31:42,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:42,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987306057] [2022-04-18 16:31:42,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987306057] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:42,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:42,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:42,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023730075] [2022-04-18 16:31:42,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:42,313 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:42,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:42,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:42,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:42,316 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 291 [2022-04-18 16:31:42,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 246 transitions, 511 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:42,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 291 [2022-04-18 16:31:42,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:42,384 INFO L129 PetriNetUnfolder]: 37/329 cut-off events. [2022-04-18 16:31:42,385 INFO L130 PetriNetUnfolder]: For 14/18 co-relation queries the response was YES. [2022-04-18 16:31:42,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 329 events. 37/329 cut-off events. For 14/18 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1081 event pairs, 18 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 374. Up to 58 conditions per place. [2022-04-18 16:31:42,389 INFO L132 encePairwiseOnDemand]: 283/291 looper letters, 24 selfloop transitions, 3 changer transitions 0/245 dead transitions. [2022-04-18 16:31:42,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 245 transitions, 566 flow [2022-04-18 16:31:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2022-04-18 16:31:42,392 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9129438717067583 [2022-04-18 16:31:42,392 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2022-04-18 16:31:42,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2022-04-18 16:31:42,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:42,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2022-04-18 16:31:42,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,396 INFO L186 Difference]: Start difference. First operand has 246 places, 246 transitions, 511 flow. Second operand 3 states and 797 transitions. [2022-04-18 16:31:42,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 245 transitions, 566 flow [2022-04-18 16:31:42,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 245 transitions, 563 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:42,401 INFO L242 Difference]: Finished difference. Result has 243 places, 242 transitions, 511 flow [2022-04-18 16:31:42,401 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=243, PETRI_TRANSITIONS=242} [2022-04-18 16:31:42,402 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -20 predicate places. [2022-04-18 16:31:42,402 INFO L478 AbstractCegarLoop]: Abstraction has has 243 places, 242 transitions, 511 flow [2022-04-18 16:31:42,402 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,403 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:42,403 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:42,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:31:42,403 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:42,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:42,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1536213201, now seen corresponding path program 1 times [2022-04-18 16:31:42,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:42,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823031320] [2022-04-18 16:31:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:42,451 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 16:31:42,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:42,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823031320] [2022-04-18 16:31:42,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823031320] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:42,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:42,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:42,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337574209] [2022-04-18 16:31:42,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:42,453 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:42,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:42,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:42,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:42,456 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 291 [2022-04-18 16:31:42,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 242 transitions, 511 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,457 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:42,457 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 291 [2022-04-18 16:31:42,457 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:42,557 INFO L129 PetriNetUnfolder]: 44/448 cut-off events. [2022-04-18 16:31:42,557 INFO L130 PetriNetUnfolder]: For 26/30 co-relation queries the response was YES. [2022-04-18 16:31:42,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 448 events. 44/448 cut-off events. For 26/30 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1780 event pairs, 9 based on Foata normal form. 1/393 useless extension candidates. Maximal degree in co-relation 497. Up to 61 conditions per place. [2022-04-18 16:31:42,564 INFO L132 encePairwiseOnDemand]: 281/291 looper letters, 29 selfloop transitions, 4 changer transitions 0/244 dead transitions. [2022-04-18 16:31:42,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 244 transitions, 587 flow [2022-04-18 16:31:42,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2022-04-18 16:31:42,566 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9106529209621993 [2022-04-18 16:31:42,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2022-04-18 16:31:42,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2022-04-18 16:31:42,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:42,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2022-04-18 16:31:42,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,570 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,571 INFO L186 Difference]: Start difference. First operand has 243 places, 242 transitions, 511 flow. Second operand 3 states and 795 transitions. [2022-04-18 16:31:42,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 244 transitions, 587 flow [2022-04-18 16:31:42,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 244 transitions, 584 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:42,575 INFO L242 Difference]: Finished difference. Result has 239 places, 238 transitions, 516 flow [2022-04-18 16:31:42,576 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=239, PETRI_TRANSITIONS=238} [2022-04-18 16:31:42,576 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -24 predicate places. [2022-04-18 16:31:42,577 INFO L478 AbstractCegarLoop]: Abstraction has has 239 places, 238 transitions, 516 flow [2022-04-18 16:31:42,577 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,577 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:42,577 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 16:31:42,578 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:31:42,578 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:42,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:42,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1167880684, now seen corresponding path program 1 times [2022-04-18 16:31:42,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:42,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736419544] [2022-04-18 16:31:42,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:42,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:42,613 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 16:31:42,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:42,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736419544] [2022-04-18 16:31:42,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736419544] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:42,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:42,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:31:42,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959389416] [2022-04-18 16:31:42,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:42,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:31:42,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:42,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:31:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:31:42,617 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 291 [2022-04-18 16:31:42,618 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 238 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 265.25) internal successors, (1061), 4 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:42,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 291 [2022-04-18 16:31:42,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:42,704 INFO L129 PetriNetUnfolder]: 12/393 cut-off events. [2022-04-18 16:31:42,705 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:31:42,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 393 events. 12/393 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1162 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 316. Up to 27 conditions per place. [2022-04-18 16:31:42,709 INFO L132 encePairwiseOnDemand]: 285/291 looper letters, 22 selfloop transitions, 5 changer transitions 0/245 dead transitions. [2022-04-18 16:31:42,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 245 transitions, 584 flow [2022-04-18 16:31:42,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:31:42,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:31:42,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1348 transitions. [2022-04-18 16:31:42,712 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9264604810996564 [2022-04-18 16:31:42,712 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1348 transitions. [2022-04-18 16:31:42,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1348 transitions. [2022-04-18 16:31:42,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:42,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1348 transitions. [2022-04-18 16:31:42,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 269.6) internal successors, (1348), 5 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,719 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 291.0) internal successors, (1746), 6 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,719 INFO L186 Difference]: Start difference. First operand has 239 places, 238 transitions, 516 flow. Second operand 5 states and 1348 transitions. [2022-04-18 16:31:42,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 245 transitions, 584 flow [2022-04-18 16:31:42,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 245 transitions, 580 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:42,725 INFO L242 Difference]: Finished difference. Result has 246 places, 242 transitions, 550 flow [2022-04-18 16:31:42,726 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=550, PETRI_PLACES=246, PETRI_TRANSITIONS=242} [2022-04-18 16:31:42,727 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -17 predicate places. [2022-04-18 16:31:42,727 INFO L478 AbstractCegarLoop]: Abstraction has has 246 places, 242 transitions, 550 flow [2022-04-18 16:31:42,728 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 265.25) internal successors, (1061), 4 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,728 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:42,728 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] [2022-04-18 16:31:42,728 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:31:42,728 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:42,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:42,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1416164021, now seen corresponding path program 1 times [2022-04-18 16:31:42,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:42,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608275220] [2022-04-18 16:31:42,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:42,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:42,787 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 16:31:42,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:42,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608275220] [2022-04-18 16:31:42,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608275220] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:42,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:42,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:42,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559424855] [2022-04-18 16:31:42,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:42,791 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:42,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:42,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:42,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:42,793 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 291 [2022-04-18 16:31:42,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 242 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:42,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 291 [2022-04-18 16:31:42,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:42,932 INFO L129 PetriNetUnfolder]: 68/648 cut-off events. [2022-04-18 16:31:42,932 INFO L130 PetriNetUnfolder]: For 58/62 co-relation queries the response was YES. [2022-04-18 16:31:42,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 648 events. 68/648 cut-off events. For 58/62 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3363 event pairs, 15 based on Foata normal form. 2/574 useless extension candidates. Maximal degree in co-relation 577. Up to 87 conditions per place. [2022-04-18 16:31:42,939 INFO L132 encePairwiseOnDemand]: 283/291 looper letters, 25 selfloop transitions, 3 changer transitions 11/245 dead transitions. [2022-04-18 16:31:42,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 245 transitions, 623 flow [2022-04-18 16:31:42,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2022-04-18 16:31:42,941 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9163802978235968 [2022-04-18 16:31:42,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 800 transitions. [2022-04-18 16:31:42,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 800 transitions. [2022-04-18 16:31:42,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:42,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 800 transitions. [2022-04-18 16:31:42,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.6666666666667) internal successors, (800), 3 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,946 INFO L186 Difference]: Start difference. First operand has 246 places, 242 transitions, 550 flow. Second operand 3 states and 800 transitions. [2022-04-18 16:31:42,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 245 transitions, 623 flow [2022-04-18 16:31:42,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 245 transitions, 623 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:31:42,951 INFO L242 Difference]: Finished difference. Result has 244 places, 227 transitions, 530 flow [2022-04-18 16:31:42,952 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=244, PETRI_TRANSITIONS=227} [2022-04-18 16:31:42,954 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -19 predicate places. [2022-04-18 16:31:42,954 INFO L478 AbstractCegarLoop]: Abstraction has has 244 places, 227 transitions, 530 flow [2022-04-18 16:31:42,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:42,954 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:42,954 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] [2022-04-18 16:31:42,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:31:42,955 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:42,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1761384484, now seen corresponding path program 1 times [2022-04-18 16:31:42,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:42,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385025074] [2022-04-18 16:31:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:43,012 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 16:31:43,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:43,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385025074] [2022-04-18 16:31:43,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385025074] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:43,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:43,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:43,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102237229] [2022-04-18 16:31:43,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:43,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:43,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:43,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:43,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:43,016 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 291 [2022-04-18 16:31:43,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 227 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:43,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 291 [2022-04-18 16:31:43,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:43,517 INFO L129 PetriNetUnfolder]: 738/4012 cut-off events. [2022-04-18 16:31:43,517 INFO L130 PetriNetUnfolder]: For 121/247 co-relation queries the response was YES. [2022-04-18 16:31:43,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5389 conditions, 4012 events. 738/4012 cut-off events. For 121/247 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 39329 event pairs, 349 based on Foata normal form. 0/3430 useless extension candidates. Maximal degree in co-relation 3851. Up to 924 conditions per place. [2022-04-18 16:31:43,563 INFO L132 encePairwiseOnDemand]: 283/291 looper letters, 20 selfloop transitions, 4 changer transitions 0/230 dead transitions. [2022-04-18 16:31:43,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 230 transitions, 587 flow [2022-04-18 16:31:43,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:43,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-04-18 16:31:43,566 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9289805269186713 [2022-04-18 16:31:43,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-04-18 16:31:43,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-04-18 16:31:43,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:43,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-04-18 16:31:43,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,571 INFO L186 Difference]: Start difference. First operand has 244 places, 227 transitions, 530 flow. Second operand 3 states and 811 transitions. [2022-04-18 16:31:43,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 230 transitions, 587 flow [2022-04-18 16:31:43,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 230 transitions, 584 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:31:43,581 INFO L242 Difference]: Finished difference. Result has 231 places, 227 transitions, 547 flow [2022-04-18 16:31:43,581 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=547, PETRI_PLACES=231, PETRI_TRANSITIONS=227} [2022-04-18 16:31:43,583 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -32 predicate places. [2022-04-18 16:31:43,583 INFO L478 AbstractCegarLoop]: Abstraction has has 231 places, 227 transitions, 547 flow [2022-04-18 16:31:43,584 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,584 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:43,584 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:43,584 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:31:43,585 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:43,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2050785749, now seen corresponding path program 1 times [2022-04-18 16:31:43,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:43,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190483443] [2022-04-18 16:31:43,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:43,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:43,633 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 16:31:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:43,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190483443] [2022-04-18 16:31:43,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190483443] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:43,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:43,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:43,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213337975] [2022-04-18 16:31:43,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:43,635 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:43,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:43,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:43,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:43,637 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 291 [2022-04-18 16:31:43,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 227 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:43,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 291 [2022-04-18 16:31:43,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:43,846 INFO L129 PetriNetUnfolder]: 237/1383 cut-off events. [2022-04-18 16:31:43,846 INFO L130 PetriNetUnfolder]: For 22/37 co-relation queries the response was YES. [2022-04-18 16:31:43,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2104 conditions, 1383 events. 237/1383 cut-off events. For 22/37 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10424 event pairs, 100 based on Foata normal form. 0/1227 useless extension candidates. Maximal degree in co-relation 1355. Up to 237 conditions per place. [2022-04-18 16:31:43,867 INFO L132 encePairwiseOnDemand]: 288/291 looper letters, 25 selfloop transitions, 2 changer transitions 0/229 dead transitions. [2022-04-18 16:31:43,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 229 transitions, 608 flow [2022-04-18 16:31:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:43,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 777 transitions. [2022-04-18 16:31:43,870 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8900343642611683 [2022-04-18 16:31:43,870 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 777 transitions. [2022-04-18 16:31:43,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 777 transitions. [2022-04-18 16:31:43,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:43,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 777 transitions. [2022-04-18 16:31:43,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,874 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,874 INFO L186 Difference]: Start difference. First operand has 231 places, 227 transitions, 547 flow. Second operand 3 states and 777 transitions. [2022-04-18 16:31:43,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 229 transitions, 608 flow [2022-04-18 16:31:43,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 229 transitions, 608 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:31:43,879 INFO L242 Difference]: Finished difference. Result has 232 places, 226 transitions, 549 flow [2022-04-18 16:31:43,880 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=549, PETRI_PLACES=232, PETRI_TRANSITIONS=226} [2022-04-18 16:31:43,882 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -31 predicate places. [2022-04-18 16:31:43,882 INFO L478 AbstractCegarLoop]: Abstraction has has 232 places, 226 transitions, 549 flow [2022-04-18 16:31:43,882 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,883 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:43,883 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:43,883 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:31:43,883 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:43,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:43,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1750146339, now seen corresponding path program 1 times [2022-04-18 16:31:43,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:43,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825482002] [2022-04-18 16:31:43,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:43,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:43,928 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 16:31:43,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:43,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825482002] [2022-04-18 16:31:43,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825482002] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:43,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:43,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:43,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838330712] [2022-04-18 16:31:43,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:43,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:43,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:43,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:43,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:43,936 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 291 [2022-04-18 16:31:43,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 226 transitions, 549 flow. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:43,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:43,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 291 [2022-04-18 16:31:43,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:44,184 INFO L129 PetriNetUnfolder]: 329/1541 cut-off events. [2022-04-18 16:31:44,184 INFO L130 PetriNetUnfolder]: For 61/82 co-relation queries the response was YES. [2022-04-18 16:31:44,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2559 conditions, 1541 events. 329/1541 cut-off events. For 61/82 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11997 event pairs, 164 based on Foata normal form. 0/1402 useless extension candidates. Maximal degree in co-relation 2472. Up to 416 conditions per place. [2022-04-18 16:31:44,207 INFO L132 encePairwiseOnDemand]: 288/291 looper letters, 23 selfloop transitions, 2 changer transitions 0/228 dead transitions. [2022-04-18 16:31:44,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 228 transitions, 606 flow [2022-04-18 16:31:44,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:44,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2022-04-18 16:31:44,211 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8980526918671249 [2022-04-18 16:31:44,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 784 transitions. [2022-04-18 16:31:44,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 784 transitions. [2022-04-18 16:31:44,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:44,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 784 transitions. [2022-04-18 16:31:44,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,216 INFO L186 Difference]: Start difference. First operand has 232 places, 226 transitions, 549 flow. Second operand 3 states and 784 transitions. [2022-04-18 16:31:44,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 228 transitions, 606 flow [2022-04-18 16:31:44,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 228 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:44,221 INFO L242 Difference]: Finished difference. Result has 231 places, 225 transitions, 547 flow [2022-04-18 16:31:44,222 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=547, PETRI_PLACES=231, PETRI_TRANSITIONS=225} [2022-04-18 16:31:44,223 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -32 predicate places. [2022-04-18 16:31:44,223 INFO L478 AbstractCegarLoop]: Abstraction has has 231 places, 225 transitions, 547 flow [2022-04-18 16:31:44,235 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,236 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:44,236 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:44,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:31:44,236 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:44,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:44,237 INFO L85 PathProgramCache]: Analyzing trace with hash 918851898, now seen corresponding path program 1 times [2022-04-18 16:31:44,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:44,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510337128] [2022-04-18 16:31:44,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:44,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:31:44,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:44,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510337128] [2022-04-18 16:31:44,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510337128] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:44,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:44,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:44,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814337165] [2022-04-18 16:31:44,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:44,270 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:44,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:44,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:44,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:44,272 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 291 [2022-04-18 16:31:44,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 225 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:44,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 291 [2022-04-18 16:31:44,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:44,482 INFO L129 PetriNetUnfolder]: 218/1330 cut-off events. [2022-04-18 16:31:44,482 INFO L130 PetriNetUnfolder]: For 97/121 co-relation queries the response was YES. [2022-04-18 16:31:44,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2018 conditions, 1330 events. 218/1330 cut-off events. For 97/121 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9336 event pairs, 85 based on Foata normal form. 0/1201 useless extension candidates. Maximal degree in co-relation 1780. Up to 240 conditions per place. [2022-04-18 16:31:44,504 INFO L132 encePairwiseOnDemand]: 288/291 looper letters, 26 selfloop transitions, 2 changer transitions 0/227 dead transitions. [2022-04-18 16:31:44,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 227 transitions, 610 flow [2022-04-18 16:31:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 777 transitions. [2022-04-18 16:31:44,507 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8900343642611683 [2022-04-18 16:31:44,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 777 transitions. [2022-04-18 16:31:44,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 777 transitions. [2022-04-18 16:31:44,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:44,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 777 transitions. [2022-04-18 16:31:44,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,511 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,511 INFO L186 Difference]: Start difference. First operand has 231 places, 225 transitions, 547 flow. Second operand 3 states and 777 transitions. [2022-04-18 16:31:44,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 227 transitions, 610 flow [2022-04-18 16:31:44,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 227 transitions, 606 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:44,516 INFO L242 Difference]: Finished difference. Result has 230 places, 224 transitions, 545 flow [2022-04-18 16:31:44,517 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=230, PETRI_TRANSITIONS=224} [2022-04-18 16:31:44,517 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -33 predicate places. [2022-04-18 16:31:44,517 INFO L478 AbstractCegarLoop]: Abstraction has has 230 places, 224 transitions, 545 flow [2022-04-18 16:31:44,518 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,518 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:44,518 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] [2022-04-18 16:31:44,518 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:31:44,518 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:44,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:44,519 INFO L85 PathProgramCache]: Analyzing trace with hash -136620018, now seen corresponding path program 1 times [2022-04-18 16:31:44,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:44,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038698669] [2022-04-18 16:31:44,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:44,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:44,652 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 16:31:44,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:44,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038698669] [2022-04-18 16:31:44,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038698669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:44,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:44,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:44,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909335379] [2022-04-18 16:31:44,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:44,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:44,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:44,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:44,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:44,657 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 291 [2022-04-18 16:31:44,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 224 transitions, 545 flow. Second operand has 6 states, 6 states have (on average 248.16666666666666) internal successors, (1489), 6 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:44,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 291 [2022-04-18 16:31:44,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:44,877 INFO L129 PetriNetUnfolder]: 88/927 cut-off events. [2022-04-18 16:31:44,878 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-04-18 16:31:44,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 927 events. 88/927 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5350 event pairs, 8 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 1217. Up to 108 conditions per place. [2022-04-18 16:31:44,891 INFO L132 encePairwiseOnDemand]: 286/291 looper letters, 30 selfloop transitions, 4 changer transitions 0/223 dead transitions. [2022-04-18 16:31:44,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 223 transitions, 611 flow [2022-04-18 16:31:44,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:44,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1511 transitions. [2022-04-18 16:31:44,896 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8654066437571593 [2022-04-18 16:31:44,896 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1511 transitions. [2022-04-18 16:31:44,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1511 transitions. [2022-04-18 16:31:44,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:44,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1511 transitions. [2022-04-18 16:31:44,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.83333333333334) internal successors, (1511), 6 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,904 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,904 INFO L186 Difference]: Start difference. First operand has 230 places, 224 transitions, 545 flow. Second operand 6 states and 1511 transitions. [2022-04-18 16:31:44,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 223 transitions, 611 flow [2022-04-18 16:31:44,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 223 transitions, 607 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:44,909 INFO L242 Difference]: Finished difference. Result has 232 places, 223 transitions, 547 flow [2022-04-18 16:31:44,910 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=547, PETRI_PLACES=232, PETRI_TRANSITIONS=223} [2022-04-18 16:31:44,911 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -31 predicate places. [2022-04-18 16:31:44,911 INFO L478 AbstractCegarLoop]: Abstraction has has 232 places, 223 transitions, 547 flow [2022-04-18 16:31:44,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 248.16666666666666) internal successors, (1489), 6 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,912 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:44,912 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] [2022-04-18 16:31:44,912 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:31:44,912 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:44,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:44,913 INFO L85 PathProgramCache]: Analyzing trace with hash 262787419, now seen corresponding path program 1 times [2022-04-18 16:31:44,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:44,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708369569] [2022-04-18 16:31:44,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:44,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:44,950 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 16:31:44,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:44,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708369569] [2022-04-18 16:31:44,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708369569] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:44,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:44,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:31:44,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784262197] [2022-04-18 16:31:44,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:44,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:31:44,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:44,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:31:44,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:31:44,957 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 291 [2022-04-18 16:31:44,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 223 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:44,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:44,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 291 [2022-04-18 16:31:44,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:45,120 INFO L129 PetriNetUnfolder]: 172/1147 cut-off events. [2022-04-18 16:31:45,121 INFO L130 PetriNetUnfolder]: For 88/98 co-relation queries the response was YES. [2022-04-18 16:31:45,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1634 conditions, 1147 events. 172/1147 cut-off events. For 88/98 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7428 event pairs, 60 based on Foata normal form. 0/1034 useless extension candidates. Maximal degree in co-relation 1212. Up to 167 conditions per place. [2022-04-18 16:31:45,149 INFO L132 encePairwiseOnDemand]: 288/291 looper letters, 23 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2022-04-18 16:31:45,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 225 transitions, 604 flow [2022-04-18 16:31:45,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:31:45,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:31:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2022-04-18 16:31:45,152 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8980526918671249 [2022-04-18 16:31:45,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 784 transitions. [2022-04-18 16:31:45,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 784 transitions. [2022-04-18 16:31:45,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:45,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 784 transitions. [2022-04-18 16:31:45,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 291.0) internal successors, (1164), 4 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,156 INFO L186 Difference]: Start difference. First operand has 232 places, 223 transitions, 547 flow. Second operand 3 states and 784 transitions. [2022-04-18 16:31:45,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 225 transitions, 604 flow [2022-04-18 16:31:45,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 225 transitions, 597 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:31:45,161 INFO L242 Difference]: Finished difference. Result has 229 places, 222 transitions, 542 flow [2022-04-18 16:31:45,162 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=229, PETRI_TRANSITIONS=222} [2022-04-18 16:31:45,162 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -34 predicate places. [2022-04-18 16:31:45,163 INFO L478 AbstractCegarLoop]: Abstraction has has 229 places, 222 transitions, 542 flow [2022-04-18 16:31:45,163 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,163 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:45,163 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:45,163 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:31:45,164 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:45,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:45,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1799584410, now seen corresponding path program 1 times [2022-04-18 16:31:45,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:45,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197908272] [2022-04-18 16:31:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:45,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:45,273 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 16:31:45,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:45,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197908272] [2022-04-18 16:31:45,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197908272] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:45,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:45,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:45,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362839274] [2022-04-18 16:31:45,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:45,275 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:45,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:45,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:45,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:45,277 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 291 [2022-04-18 16:31:45,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 222 transitions, 542 flow. Second operand has 6 states, 6 states have (on average 249.16666666666666) internal successors, (1495), 6 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:45,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 291 [2022-04-18 16:31:45,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:45,446 INFO L129 PetriNetUnfolder]: 88/920 cut-off events. [2022-04-18 16:31:45,446 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-04-18 16:31:45,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 920 events. 88/920 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5286 event pairs, 8 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 1218. Up to 108 conditions per place. [2022-04-18 16:31:45,457 INFO L132 encePairwiseOnDemand]: 286/291 looper letters, 29 selfloop transitions, 4 changer transitions 0/221 dead transitions. [2022-04-18 16:31:45,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 221 transitions, 606 flow [2022-04-18 16:31:45,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:45,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:45,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1510 transitions. [2022-04-18 16:31:45,462 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8648339060710195 [2022-04-18 16:31:45,462 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1510 transitions. [2022-04-18 16:31:45,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1510 transitions. [2022-04-18 16:31:45,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:45,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1510 transitions. [2022-04-18 16:31:45,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.66666666666666) internal successors, (1510), 6 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,469 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,469 INFO L186 Difference]: Start difference. First operand has 229 places, 222 transitions, 542 flow. Second operand 6 states and 1510 transitions. [2022-04-18 16:31:45,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 221 transitions, 606 flow [2022-04-18 16:31:45,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 221 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:31:45,474 INFO L242 Difference]: Finished difference. Result has 231 places, 221 transitions, 544 flow [2022-04-18 16:31:45,474 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=544, PETRI_PLACES=231, PETRI_TRANSITIONS=221} [2022-04-18 16:31:45,475 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -32 predicate places. [2022-04-18 16:31:45,475 INFO L478 AbstractCegarLoop]: Abstraction has has 231 places, 221 transitions, 544 flow [2022-04-18 16:31:45,476 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.16666666666666) internal successors, (1495), 6 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,476 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:45,476 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:45,476 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:31:45,476 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:45,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:45,477 INFO L85 PathProgramCache]: Analyzing trace with hash -185547441, now seen corresponding path program 1 times [2022-04-18 16:31:45,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:45,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572995505] [2022-04-18 16:31:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:45,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:45,593 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 16:31:45,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:45,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572995505] [2022-04-18 16:31:45,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572995505] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:45,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:45,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:45,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113396630] [2022-04-18 16:31:45,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:45,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:45,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:45,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:45,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:45,597 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 291 [2022-04-18 16:31:45,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 221 transitions, 544 flow. Second operand has 6 states, 6 states have (on average 250.16666666666666) internal successors, (1501), 6 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:45,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 291 [2022-04-18 16:31:45,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:45,740 INFO L129 PetriNetUnfolder]: 88/913 cut-off events. [2022-04-18 16:31:45,741 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:31:45,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 913 events. 88/913 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5253 event pairs, 8 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 1077. Up to 108 conditions per place. [2022-04-18 16:31:45,752 INFO L132 encePairwiseOnDemand]: 286/291 looper letters, 28 selfloop transitions, 4 changer transitions 0/220 dead transitions. [2022-04-18 16:31:45,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 220 transitions, 606 flow [2022-04-18 16:31:45,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:45,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:45,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1509 transitions. [2022-04-18 16:31:45,756 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8642611683848798 [2022-04-18 16:31:45,756 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1509 transitions. [2022-04-18 16:31:45,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1509 transitions. [2022-04-18 16:31:45,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:45,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1509 transitions. [2022-04-18 16:31:45,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.5) internal successors, (1509), 6 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,762 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,762 INFO L186 Difference]: Start difference. First operand has 231 places, 221 transitions, 544 flow. Second operand 6 states and 1509 transitions. [2022-04-18 16:31:45,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 220 transitions, 606 flow [2022-04-18 16:31:45,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 220 transitions, 599 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:31:45,768 INFO L242 Difference]: Finished difference. Result has 231 places, 220 transitions, 543 flow [2022-04-18 16:31:45,768 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=543, PETRI_PLACES=231, PETRI_TRANSITIONS=220} [2022-04-18 16:31:45,768 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -32 predicate places. [2022-04-18 16:31:45,769 INFO L478 AbstractCegarLoop]: Abstraction has has 231 places, 220 transitions, 543 flow [2022-04-18 16:31:45,769 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.16666666666666) internal successors, (1501), 6 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,769 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:31:45,769 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:45,769 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:31:45,770 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-04-18 16:31:45,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:31:45,770 INFO L85 PathProgramCache]: Analyzing trace with hash -404593908, now seen corresponding path program 1 times [2022-04-18 16:31:45,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:31:45,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683002712] [2022-04-18 16:31:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:31:45,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:31:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:31:45,865 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 16:31:45,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:31:45,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683002712] [2022-04-18 16:31:45,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683002712] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:31:45,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:31:45,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:31:45,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306135866] [2022-04-18 16:31:45,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:31:45,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:31:45,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:31:45,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:31:45,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:31:45,868 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 291 [2022-04-18 16:31:45,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 220 transitions, 543 flow. Second operand has 6 states, 6 states have (on average 251.16666666666666) internal successors, (1507), 6 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:45,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:31:45,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 291 [2022-04-18 16:31:45,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:31:46,023 INFO L129 PetriNetUnfolder]: 88/910 cut-off events. [2022-04-18 16:31:46,023 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-04-18 16:31:46,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 910 events. 88/910 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5241 event pairs, 8 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 1138. Up to 108 conditions per place. [2022-04-18 16:31:46,032 INFO L132 encePairwiseOnDemand]: 286/291 looper letters, 0 selfloop transitions, 0 changer transitions 219/219 dead transitions. [2022-04-18 16:31:46,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 219 transitions, 603 flow [2022-04-18 16:31:46,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:31:46,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:31:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1508 transitions. [2022-04-18 16:31:46,036 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.86368843069874 [2022-04-18 16:31:46,036 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1508 transitions. [2022-04-18 16:31:46,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1508 transitions. [2022-04-18 16:31:46,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:31:46,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1508 transitions. [2022-04-18 16:31:46,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.33333333333334) internal successors, (1508), 6 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:46,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:46,043 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 291.0) internal successors, (2037), 7 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:46,043 INFO L186 Difference]: Start difference. First operand has 231 places, 220 transitions, 543 flow. Second operand 6 states and 1508 transitions. [2022-04-18 16:31:46,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 219 transitions, 603 flow [2022-04-18 16:31:46,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 219 transitions, 596 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:31:46,047 INFO L242 Difference]: Finished difference. Result has 231 places, 0 transitions, 0 flow [2022-04-18 16:31:46,048 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=231, PETRI_TRANSITIONS=0} [2022-04-18 16:31:46,048 INFO L335 CegarLoopForPetriNet]: 263 programPoint places, -32 predicate places. [2022-04-18 16:31:46,048 INFO L478 AbstractCegarLoop]: Abstraction has has 231 places, 0 transitions, 0 flow [2022-04-18 16:31:46,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 251.16666666666666) internal successors, (1507), 6 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:31:46,052 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (62 of 63 remaining) [2022-04-18 16:31:46,053 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2022-04-18 16:31:46,053 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2022-04-18 16:31:46,053 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2022-04-18 16:31:46,053 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2022-04-18 16:31:46,053 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2022-04-18 16:31:46,054 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (56 of 63 remaining) [2022-04-18 16:31:46,054 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2022-04-18 16:31:46,054 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2022-04-18 16:31:46,054 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2022-04-18 16:31:46,054 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2022-04-18 16:31:46,054 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2022-04-18 16:31:46,054 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2022-04-18 16:31:46,055 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2022-04-18 16:31:46,055 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2022-04-18 16:31:46,055 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2022-04-18 16:31:46,055 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2022-04-18 16:31:46,055 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2022-04-18 16:31:46,055 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2022-04-18 16:31:46,056 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2022-04-18 16:31:46,056 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2022-04-18 16:31:46,057 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2022-04-18 16:31:46,057 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2022-04-18 16:31:46,057 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (39 of 63 remaining) [2022-04-18 16:31:46,057 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2022-04-18 16:31:46,057 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2022-04-18 16:31:46,058 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2022-04-18 16:31:46,058 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2022-04-18 16:31:46,058 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2022-04-18 16:31:46,058 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2022-04-18 16:31:46,058 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2022-04-18 16:31:46,058 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2022-04-18 16:31:46,058 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2022-04-18 16:31:46,059 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2022-04-18 16:31:46,059 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 63 remaining) [2022-04-18 16:31:46,059 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 63 remaining) [2022-04-18 16:31:46,059 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 63 remaining) [2022-04-18 16:31:46,059 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 63 remaining) [2022-04-18 16:31:46,059 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (24 of 63 remaining) [2022-04-18 16:31:46,060 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (23 of 63 remaining) [2022-04-18 16:31:46,060 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (22 of 63 remaining) [2022-04-18 16:31:46,060 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2022-04-18 16:31:46,060 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2022-04-18 16:31:46,060 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2022-04-18 16:31:46,060 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2022-04-18 16:31:46,060 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2022-04-18 16:31:46,061 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2022-04-18 16:31:46,061 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2022-04-18 16:31:46,061 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2022-04-18 16:31:46,061 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2022-04-18 16:31:46,061 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2022-04-18 16:31:46,061 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2022-04-18 16:31:46,061 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2022-04-18 16:31:46,062 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2022-04-18 16:31:46,062 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2022-04-18 16:31:46,062 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2022-04-18 16:31:46,062 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2022-04-18 16:31:46,062 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2022-04-18 16:31:46,062 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2022-04-18 16:31:46,063 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2022-04-18 16:31:46,063 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2022-04-18 16:31:46,063 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2022-04-18 16:31:46,063 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2022-04-18 16:31:46,063 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:31:46,067 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:31:46,072 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:31:46,073 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:31:46,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:31:46 BasicIcfg [2022-04-18 16:31:46,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:31:46,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:31:46,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:31:46,079 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:31:46,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:31:39" (3/4) ... [2022-04-18 16:31:46,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:31:46,087 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:31:46,087 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:31:46,087 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:31:46,088 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-04-18 16:31:46,095 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-04-18 16:31:46,096 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:31:46,096 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:31:46,096 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:31:46,146 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:31:46,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:31:46,148 INFO L158 Benchmark]: Toolchain (without parser) took 7057.97ms. Allocated memory was 113.2MB in the beginning and 530.6MB in the end (delta: 417.3MB). Free memory was 82.7MB in the beginning and 174.7MB in the end (delta: -92.0MB). Peak memory consumption was 324.5MB. Max. memory is 16.1GB. [2022-04-18 16:31:46,148 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:31:46,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.18ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 85.9MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:31:46,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.41ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 83.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:31:46,149 INFO L158 Benchmark]: Boogie Preprocessor took 27.85ms. Allocated memory is still 113.2MB. Free memory was 83.5MB in the beginning and 81.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:31:46,149 INFO L158 Benchmark]: RCFGBuilder took 548.64ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 62.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-04-18 16:31:46,149 INFO L158 Benchmark]: TraceAbstraction took 6114.51ms. Allocated memory was 113.2MB in the beginning and 530.6MB in the end (delta: 417.3MB). Free memory was 61.6MB in the beginning and 178.9MB in the end (delta: -117.4MB). Peak memory consumption was 300.4MB. Max. memory is 16.1GB. [2022-04-18 16:31:46,149 INFO L158 Benchmark]: Witness Printer took 68.07ms. Allocated memory is still 530.6MB. Free memory was 178.9MB in the beginning and 174.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:31:46,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.18ms. Allocated memory is still 113.2MB. Free memory was 82.5MB in the beginning and 85.9MB in the end (delta: -3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.41ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 83.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.85ms. Allocated memory is still 113.2MB. Free memory was 83.5MB in the beginning and 81.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.64ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 62.2MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6114.51ms. Allocated memory was 113.2MB in the beginning and 530.6MB in the end (delta: 417.3MB). Free memory was 61.6MB in the beginning and 178.9MB in the end (delta: -117.4MB). Peak memory consumption was 300.4MB. Max. memory is 16.1GB. * Witness Printer took 68.07ms. Allocated memory is still 530.6MB. Free memory was 178.9MB in the beginning and 174.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: 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: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: 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: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 370 locations, 63 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: 5.9s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 288 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 157 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 713 IncrementalHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 279 mSDtfsCounter, 713 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=550occurred in iteration=9, InterpolantAutomatonStates: 71, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1435 NumberOfCodeBlocks, 1435 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1416 ConstructedInterpolants, 0 QuantifiedInterpolants, 1770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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 39 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:31:46,208 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