./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.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 c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:29:06,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:29:06,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:29:06,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:29:06,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:29:06,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:29:06,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:29:06,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:29:06,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:29:06,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:29:06,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:29:06,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:29:06,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:29:06,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:29:06,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:29:06,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:29:06,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:29:06,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:29:06,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:29:06,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:29:06,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:29:06,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:29:06,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:29:06,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:29:06,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:29:06,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:29:06,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:29:06,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:29:06,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:29:06,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:29:06,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:29:06,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:29:06,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:29:06,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:29:06,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:29:06,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:29:06,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:29:06,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:29:06,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:29:06,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:29:06,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:29:06,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:29:06,956 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:29:06,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:29:06,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:29:06,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:29:06,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:29:06,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:29:06,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:29:06,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:29:06,958 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:29:06,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:29:06,959 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:29:06,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:29:06,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:29:06,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:29:06,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:29:06,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:29:06,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:29:06,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:29:06,960 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:29:06,960 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:29:06,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:29:06,960 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:29:06,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:29:06,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:29:06,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:29:06,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:29:06,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:29:06,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:29:06,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:29:06,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:29:06,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:29:06,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:29:06,962 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:29:06,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:29:06,962 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:29:06,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:29:06,963 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:29:06,963 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:29:07,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:29:07,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:29:07,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:29:07,234 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:29:07,235 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:29:07,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-31 21:29:08,188 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:29:08,291 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:29:08,291 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2023-08-31 21:29:08,295 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eaaa838b/d6ecffbdeb664d8fb19ccda97bca4b2e/FLAGd13e8a8c7 [2023-08-31 21:29:08,305 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0eaaa838b/d6ecffbdeb664d8fb19ccda97bca4b2e [2023-08-31 21:29:08,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:29:08,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:29:08,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:29:08,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:29:08,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:29:08,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a3470f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08, skipping insertion in model container [2023-08-31 21:29:08,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:29:08,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:29:08,435 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2023-08-31 21:29:08,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:29:08,445 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:29:08,461 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2023-08-31 21:29:08,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:29:08,481 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:29:08,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08 WrapperNode [2023-08-31 21:29:08,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:29:08,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:29:08,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:29:08,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:29:08,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,518 INFO L138 Inliner]: procedures = 25, calls = 37, calls flagged for inlining = 15, calls inlined = 19, statements flattened = 338 [2023-08-31 21:29:08,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:29:08,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:29:08,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:29:08,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:29:08,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:29:08,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:29:08,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:29:08,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:29:08,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (1/1) ... [2023-08-31 21:29:08,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:29:08,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:29:08,585 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) [2023-08-31 21:29:08,593 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 [2023-08-31 21:29:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:29:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:29:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:29:08,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:29:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:29:08,612 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:29:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:29:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:29:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:29:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:29:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:29:08,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:29:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:29:08,619 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:29:08,750 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:29:08,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:29:09,087 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:29:09,095 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:29:09,096 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-31 21:29:09,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:29:09 BoogieIcfgContainer [2023-08-31 21:29:09,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:29:09,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:29:09,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:29:09,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:29:09,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:29:08" (1/3) ... [2023-08-31 21:29:09,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71aa4791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:29:09, skipping insertion in model container [2023-08-31 21:29:09,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:29:08" (2/3) ... [2023-08-31 21:29:09,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71aa4791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:29:09, skipping insertion in model container [2023-08-31 21:29:09,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:29:09" (3/3) ... [2023-08-31 21:29:09,103 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-08-31 21:29:09,116 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:29:09,122 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:29:09,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-31 21:29:09,123 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:29:09,192 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:29:09,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 391 places, 410 transitions, 836 flow [2023-08-31 21:29:09,307 INFO L130 PetriNetUnfolder]: 26/408 cut-off events. [2023-08-31 21:29:09,307 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:29:09,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 408 events. 26/408 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 678 event pairs, 0 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 235. Up to 2 conditions per place. [2023-08-31 21:29:09,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 391 places, 410 transitions, 836 flow [2023-08-31 21:29:09,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 390 transitions, 792 flow [2023-08-31 21:29:09,322 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:29:09,329 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 390 transitions, 792 flow [2023-08-31 21:29:09,331 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 390 transitions, 792 flow [2023-08-31 21:29:09,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 390 transitions, 792 flow [2023-08-31 21:29:09,391 INFO L130 PetriNetUnfolder]: 24/390 cut-off events. [2023-08-31 21:29:09,391 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:29:09,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 390 events. 24/390 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 666 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 235. Up to 2 conditions per place. [2023-08-31 21:29:09,403 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2023-08-31 21:29:16,566 INFO L134 LiptonReduction]: Checked pairs total: 77925 [2023-08-31 21:29:16,566 INFO L136 LiptonReduction]: Total number of compositions: 403 [2023-08-31 21:29:16,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:29:16,581 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6947022c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:29:16,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-08-31 21:29:16,583 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-31 21:29:16,583 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:29:16,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:16,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-31 21:29:16,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:16,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:16,587 INFO L85 PathProgramCache]: Analyzing trace with hash 49430, now seen corresponding path program 1 times [2023-08-31 21:29:16,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:16,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322343633] [2023-08-31 21:29:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:16,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:29:16,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:16,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322343633] [2023-08-31 21:29:16,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322343633] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:16,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:16,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 21:29:16,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994862428] [2023-08-31 21:29:16,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:16,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:29:16,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:16,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:29:16,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:29:16,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 813 [2023-08-31 21:29:16,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 212 flow. Second operand has 2 states, 2 states have (on average 389.0) internal successors, (778), 2 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) [2023-08-31 21:29:16,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:16,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 813 [2023-08-31 21:29:16,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:16,932 INFO L130 PetriNetUnfolder]: 175/765 cut-off events. [2023-08-31 21:29:16,932 INFO L131 PetriNetUnfolder]: For 58/85 co-relation queries the response was YES. [2023-08-31 21:29:16,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 765 events. 175/765 cut-off events. For 58/85 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5336 event pairs, 141 based on Foata normal form. 56/685 useless extension candidates. Maximal degree in co-relation 948. Up to 304 conditions per place. [2023-08-31 21:29:16,938 INFO L137 encePairwiseOnDemand]: 789/813 looper letters, 25 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2023-08-31 21:29:16,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 214 flow [2023-08-31 21:29:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:29:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:29:16,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 826 transitions. [2023-08-31 21:29:16,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079950799507995 [2023-08-31 21:29:16,953 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 826 transitions. [2023-08-31 21:29:16,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 826 transitions. [2023-08-31 21:29:16,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:16,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 826 transitions. [2023-08-31 21:29:16,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 413.0) internal successors, (826), 2 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:16,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 813.0) internal successors, (2439), 3 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:16,968 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 813.0) internal successors, (2439), 3 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:16,969 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 212 flow. Second operand 2 states and 826 transitions. [2023-08-31 21:29:16,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 214 flow [2023-08-31 21:29:16,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 75 transitions, 206 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:29:16,974 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 151 flow [2023-08-31 21:29:16,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=151, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2023-08-31 21:29:16,978 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -26 predicate places. [2023-08-31 21:29:16,979 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 151 flow [2023-08-31 21:29:16,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 389.0) internal successors, (778), 2 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) [2023-08-31 21:29:16,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:16,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:29:16,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:29:16,981 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:16,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:16,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1512677996, now seen corresponding path program 1 times [2023-08-31 21:29:16,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:16,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670397315] [2023-08-31 21:29:16,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:16,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:29:17,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:17,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670397315] [2023-08-31 21:29:17,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670397315] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:17,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:17,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:17,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492026569] [2023-08-31 21:29:17,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:17,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:17,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:17,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:17,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:17,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 813 [2023-08-31 21:29:17,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:17,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 813 [2023-08-31 21:29:17,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:17,180 INFO L130 PetriNetUnfolder]: 224/795 cut-off events. [2023-08-31 21:29:17,180 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 21:29:17,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 795 events. 224/795 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5215 event pairs, 74 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 1188. Up to 370 conditions per place. [2023-08-31 21:29:17,183 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 32 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2023-08-31 21:29:17,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 79 transitions, 230 flow [2023-08-31 21:29:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1179 transitions. [2023-08-31 21:29:17,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4833948339483395 [2023-08-31 21:29:17,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1179 transitions. [2023-08-31 21:29:17,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1179 transitions. [2023-08-31 21:29:17,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:17,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1179 transitions. [2023-08-31 21:29:17,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,193 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,193 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 151 flow. Second operand 3 states and 1179 transitions. [2023-08-31 21:29:17,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 79 transitions, 230 flow [2023-08-31 21:29:17,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 79 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:17,195 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 161 flow [2023-08-31 21:29:17,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2023-08-31 21:29:17,196 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -26 predicate places. [2023-08-31 21:29:17,196 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 161 flow [2023-08-31 21:29:17,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:17,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:17,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:29:17,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:17,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1969884500, now seen corresponding path program 1 times [2023-08-31 21:29:17,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:17,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132751748] [2023-08-31 21:29:17,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:17,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:29:17,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:17,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132751748] [2023-08-31 21:29:17,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132751748] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:17,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:17,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:17,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037288060] [2023-08-31 21:29:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:17,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:17,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:17,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:17,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:17,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 813 [2023-08-31 21:29:17,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:17,284 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 813 [2023-08-31 21:29:17,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:17,378 INFO L130 PetriNetUnfolder]: 204/829 cut-off events. [2023-08-31 21:29:17,378 INFO L131 PetriNetUnfolder]: For 6/38 co-relation queries the response was YES. [2023-08-31 21:29:17,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1205 conditions, 829 events. 204/829 cut-off events. For 6/38 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5809 event pairs, 73 based on Foata normal form. 1/691 useless extension candidates. Maximal degree in co-relation 1201. Up to 337 conditions per place. [2023-08-31 21:29:17,381 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 30 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2023-08-31 21:29:17,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 78 transitions, 234 flow [2023-08-31 21:29:17,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:17,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1177 transitions. [2023-08-31 21:29:17,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4825748257482575 [2023-08-31 21:29:17,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1177 transitions. [2023-08-31 21:29:17,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1177 transitions. [2023-08-31 21:29:17,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:17,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1177 transitions. [2023-08-31 21:29:17,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 392.3333333333333) internal successors, (1177), 3 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,390 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,390 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 161 flow. Second operand 3 states and 1177 transitions. [2023-08-31 21:29:17,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 78 transitions, 234 flow [2023-08-31 21:29:17,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 78 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:17,392 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 171 flow [2023-08-31 21:29:17,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=76, PETRI_TRANSITIONS=74} [2023-08-31 21:29:17,393 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -25 predicate places. [2023-08-31 21:29:17,395 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 171 flow [2023-08-31 21:29:17,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.6666666666667) internal successors, (1151), 3 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:17,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:17,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:29:17,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:17,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:17,397 INFO L85 PathProgramCache]: Analyzing trace with hash 88411570, now seen corresponding path program 1 times [2023-08-31 21:29:17,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:17,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790522417] [2023-08-31 21:29:17,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:17,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:29:17,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:17,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790522417] [2023-08-31 21:29:17,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790522417] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:17,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:17,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:17,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22110848] [2023-08-31 21:29:17,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:17,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:17,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:17,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:17,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 813 [2023-08-31 21:29:17,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:17,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 813 [2023-08-31 21:29:17,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:17,596 INFO L130 PetriNetUnfolder]: 368/1352 cut-off events. [2023-08-31 21:29:17,596 INFO L131 PetriNetUnfolder]: For 46/75 co-relation queries the response was YES. [2023-08-31 21:29:17,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 1352 events. 368/1352 cut-off events. For 46/75 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9710 event pairs, 115 based on Foata normal form. 5/1156 useless extension candidates. Maximal degree in co-relation 2063. Up to 428 conditions per place. [2023-08-31 21:29:17,600 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 44 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-08-31 21:29:17,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 297 flow [2023-08-31 21:29:17,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1190 transitions. [2023-08-31 21:29:17,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4879048790487905 [2023-08-31 21:29:17,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1190 transitions. [2023-08-31 21:29:17,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1190 transitions. [2023-08-31 21:29:17,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:17,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1190 transitions. [2023-08-31 21:29:17,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,611 INFO L175 Difference]: Start difference. First operand has 76 places, 74 transitions, 171 flow. Second operand 3 states and 1190 transitions. [2023-08-31 21:29:17,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 297 flow [2023-08-31 21:29:17,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 89 transitions, 297 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:17,614 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 181 flow [2023-08-31 21:29:17,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2023-08-31 21:29:17,615 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -24 predicate places. [2023-08-31 21:29:17,616 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 181 flow [2023-08-31 21:29:17,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:17,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:17,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:29:17,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:17,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:17,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1902678133, now seen corresponding path program 1 times [2023-08-31 21:29:17,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:17,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360701722] [2023-08-31 21:29:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:17,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:17,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:29:17,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:17,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360701722] [2023-08-31 21:29:17,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360701722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:17,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:17,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:17,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162899466] [2023-08-31 21:29:17,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:17,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:17,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:17,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:17,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:17,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 813 [2023-08-31 21:29:17,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:17,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 813 [2023-08-31 21:29:17,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:17,862 INFO L130 PetriNetUnfolder]: 294/1158 cut-off events. [2023-08-31 21:29:17,862 INFO L131 PetriNetUnfolder]: For 58/85 co-relation queries the response was YES. [2023-08-31 21:29:17,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1828 conditions, 1158 events. 294/1158 cut-off events. For 58/85 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8043 event pairs, 236 based on Foata normal form. 0/1010 useless extension candidates. Maximal degree in co-relation 1822. Up to 510 conditions per place. [2023-08-31 21:29:17,866 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 25 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2023-08-31 21:29:17,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 243 flow [2023-08-31 21:29:17,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:17,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1169 transitions. [2023-08-31 21:29:17,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4792947929479295 [2023-08-31 21:29:17,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1169 transitions. [2023-08-31 21:29:17,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1169 transitions. [2023-08-31 21:29:17,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:17,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1169 transitions. [2023-08-31 21:29:17,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,876 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 181 flow. Second operand 3 states and 1169 transitions. [2023-08-31 21:29:17,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 243 flow [2023-08-31 21:29:17,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:17,878 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 203 flow [2023-08-31 21:29:17,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2023-08-31 21:29:17,878 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -21 predicate places. [2023-08-31 21:29:17,879 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 203 flow [2023-08-31 21:29:17,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:17,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:17,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:17,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:29:17,880 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:17,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:17,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1385921026, now seen corresponding path program 1 times [2023-08-31 21:29:17,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:17,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751318594] [2023-08-31 21:29:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:17,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:29:17,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751318594] [2023-08-31 21:29:17,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751318594] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:29:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750437247] [2023-08-31 21:29:17,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:17,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:17,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:29:17,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:29:17,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 21:29:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:18,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-31 21:29:18,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:29:18,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:29:18,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:29:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:29:18,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750437247] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:29:18,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:29:18,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-31 21:29:18,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876325199] [2023-08-31 21:29:18,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:29:18,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 21:29:18,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:18,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 21:29:18,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-31 21:29:18,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 813 [2023-08-31 21:29:18,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 203 flow. Second operand has 8 states, 8 states have (on average 377.875) internal successors, (3023), 8 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:18,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:18,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 813 [2023-08-31 21:29:18,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:18,472 INFO L130 PetriNetUnfolder]: 294/1164 cut-off events. [2023-08-31 21:29:18,472 INFO L131 PetriNetUnfolder]: For 58/85 co-relation queries the response was YES. [2023-08-31 21:29:18,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1857 conditions, 1164 events. 294/1164 cut-off events. For 58/85 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8052 event pairs, 236 based on Foata normal form. 3/1020 useless extension candidates. Maximal degree in co-relation 1849. Up to 510 conditions per place. [2023-08-31 21:29:18,478 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 25 selfloop transitions, 10 changer transitions 0/82 dead transitions. [2023-08-31 21:29:18,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 297 flow [2023-08-31 21:29:18,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:18,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2295 transitions. [2023-08-31 21:29:18,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470479704797048 [2023-08-31 21:29:18,482 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2295 transitions. [2023-08-31 21:29:18,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2295 transitions. [2023-08-31 21:29:18,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:18,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2295 transitions. [2023-08-31 21:29:18,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 382.5) internal successors, (2295), 6 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:18,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:18,494 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:18,494 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 203 flow. Second operand 6 states and 2295 transitions. [2023-08-31 21:29:18,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 297 flow [2023-08-31 21:29:18,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 82 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:29:18,498 INFO L231 Difference]: Finished difference. Result has 87 places, 82 transitions, 265 flow [2023-08-31 21:29:18,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=265, PETRI_PLACES=87, PETRI_TRANSITIONS=82} [2023-08-31 21:29:18,501 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -14 predicate places. [2023-08-31 21:29:18,501 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 82 transitions, 265 flow [2023-08-31 21:29:18,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 377.875) internal successors, (3023), 8 states have internal predecessors, (3023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:18,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:18,503 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:18,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-31 21:29:18,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-31 21:29:18,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:18,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:18,708 INFO L85 PathProgramCache]: Analyzing trace with hash 82071093, now seen corresponding path program 2 times [2023-08-31 21:29:18,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:18,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590295812] [2023-08-31 21:29:18,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:18,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 21:29:18,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:18,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590295812] [2023-08-31 21:29:18,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590295812] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:29:18,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804892267] [2023-08-31 21:29:18,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 21:29:18,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:18,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:29:18,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:29:18,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 21:29:18,959 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 21:29:18,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 21:29:18,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-31 21:29:18,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:29:19,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 21:29:19,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 21:29:19,045 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 21:29:19,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 21:29:19,071 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 21:29:19,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 21:29:19,089 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-31 21:29:19,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 21:29:19,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804892267] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:19,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 21:29:19,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-31 21:29:19,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215187447] [2023-08-31 21:29:19,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:19,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 21:29:19,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:19,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 21:29:19,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-31 21:29:19,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 813 [2023-08-31 21:29:19,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 82 transitions, 265 flow. Second operand has 7 states, 7 states have (on average 372.85714285714283) internal successors, (2610), 7 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:19,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 813 [2023-08-31 21:29:19,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:19,557 INFO L130 PetriNetUnfolder]: 955/1949 cut-off events. [2023-08-31 21:29:19,557 INFO L131 PetriNetUnfolder]: For 182/182 co-relation queries the response was YES. [2023-08-31 21:29:19,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3848 conditions, 1949 events. 955/1949 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11679 event pairs, 68 based on Foata normal form. 0/1721 useless extension candidates. Maximal degree in co-relation 3837. Up to 582 conditions per place. [2023-08-31 21:29:19,565 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 98 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2023-08-31 21:29:19,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 145 transitions, 637 flow [2023-08-31 21:29:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:29:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:29:19,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2683 transitions. [2023-08-31 21:29:19,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4714461430328589 [2023-08-31 21:29:19,570 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2683 transitions. [2023-08-31 21:29:19,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2683 transitions. [2023-08-31 21:29:19,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:19,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2683 transitions. [2023-08-31 21:29:19,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 383.2857142857143) internal successors, (2683), 7 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,581 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,581 INFO L175 Difference]: Start difference. First operand has 87 places, 82 transitions, 265 flow. Second operand 7 states and 2683 transitions. [2023-08-31 21:29:19,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 145 transitions, 637 flow [2023-08-31 21:29:19,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 145 transitions, 621 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-31 21:29:19,583 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 257 flow [2023-08-31 21:29:19,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=257, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2023-08-31 21:29:19,584 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -10 predicate places. [2023-08-31 21:29:19,584 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 257 flow [2023-08-31 21:29:19,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 372.85714285714283) internal successors, (2610), 7 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:19,585 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:19,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 21:29:19,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-31 21:29:19,789 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:19,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:19,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2047007933, now seen corresponding path program 1 times [2023-08-31 21:29:19,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:19,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850358668] [2023-08-31 21:29:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:19,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-31 21:29:19,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:19,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850358668] [2023-08-31 21:29:19,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850358668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:19,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:19,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:29:19,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311514308] [2023-08-31 21:29:19,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:19,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:29:19,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:19,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:29:19,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:29:19,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 381 out of 813 [2023-08-31 21:29:19,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:19,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 381 of 813 [2023-08-31 21:29:19,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:19,960 INFO L130 PetriNetUnfolder]: 367/1352 cut-off events. [2023-08-31 21:29:19,961 INFO L131 PetriNetUnfolder]: For 172/199 co-relation queries the response was YES. [2023-08-31 21:29:19,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2338 conditions, 1352 events. 367/1352 cut-off events. For 172/199 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 9527 event pairs, 101 based on Foata normal form. 1/1211 useless extension candidates. Maximal degree in co-relation 2326. Up to 441 conditions per place. [2023-08-31 21:29:19,966 INFO L137 encePairwiseOnDemand]: 809/813 looper letters, 51 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-31 21:29:19,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 400 flow [2023-08-31 21:29:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:29:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:29:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1188 transitions. [2023-08-31 21:29:19,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4870848708487085 [2023-08-31 21:29:19,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1188 transitions. [2023-08-31 21:29:19,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1188 transitions. [2023-08-31 21:29:19,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:19,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1188 transitions. [2023-08-31 21:29:19,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 813.0) internal successors, (3252), 4 states have internal predecessors, (3252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,974 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 257 flow. Second operand 3 states and 1188 transitions. [2023-08-31 21:29:19,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 400 flow [2023-08-31 21:29:19,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 95 transitions, 389 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:29:19,977 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 258 flow [2023-08-31 21:29:19,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2023-08-31 21:29:19,977 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -14 predicate places. [2023-08-31 21:29:19,977 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 258 flow [2023-08-31 21:29:19,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:19,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:19,978 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:19,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:29:19,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:19,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:19,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1250251365, now seen corresponding path program 1 times [2023-08-31 21:29:19,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:19,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54125389] [2023-08-31 21:29:19,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:19,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 21:29:20,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:20,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54125389] [2023-08-31 21:29:20,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54125389] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:29:20,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574884147] [2023-08-31 21:29:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:20,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:20,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:29:20,075 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:29:20,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-31 21:29:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:20,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-31 21:29:20,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:29:20,245 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 21:29:20,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:29:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 21:29:20,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574884147] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:29:20,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:29:20,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-31 21:29:20,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109319711] [2023-08-31 21:29:20,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:29:20,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 21:29:20,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:20,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 21:29:20,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-08-31 21:29:20,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 813 [2023-08-31 21:29:20,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 258 flow. Second operand has 13 states, 13 states have (on average 377.61538461538464) internal successors, (4909), 13 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:20,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:20,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 813 [2023-08-31 21:29:20,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:20,605 INFO L130 PetriNetUnfolder]: 317/1247 cut-off events. [2023-08-31 21:29:20,606 INFO L131 PetriNetUnfolder]: For 80/109 co-relation queries the response was YES. [2023-08-31 21:29:20,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2088 conditions, 1247 events. 317/1247 cut-off events. For 80/109 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8677 event pairs, 248 based on Foata normal form. 1/1140 useless extension candidates. Maximal degree in co-relation 2076. Up to 537 conditions per place. [2023-08-31 21:29:20,610 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 26 selfloop transitions, 12 changer transitions 0/83 dead transitions. [2023-08-31 21:29:20,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 83 transitions, 346 flow [2023-08-31 21:29:20,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:29:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:29:20,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2669 transitions. [2023-08-31 21:29:20,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4689861184326129 [2023-08-31 21:29:20,615 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2669 transitions. [2023-08-31 21:29:20,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2669 transitions. [2023-08-31 21:29:20,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:20,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2669 transitions. [2023-08-31 21:29:20,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 381.2857142857143) internal successors, (2669), 7 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:20,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:20,625 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 813.0) internal successors, (6504), 8 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:20,625 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 258 flow. Second operand 7 states and 2669 transitions. [2023-08-31 21:29:20,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 83 transitions, 346 flow [2023-08-31 21:29:20,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 83 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:29:20,627 INFO L231 Difference]: Finished difference. Result has 94 places, 83 transitions, 304 flow [2023-08-31 21:29:20,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=304, PETRI_PLACES=94, PETRI_TRANSITIONS=83} [2023-08-31 21:29:20,627 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -7 predicate places. [2023-08-31 21:29:20,628 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 83 transitions, 304 flow [2023-08-31 21:29:20,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 377.61538461538464) internal successors, (4909), 13 states have internal predecessors, (4909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:20,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:20,629 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:20,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-31 21:29:20,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:29:20,834 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:20,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:20,834 INFO L85 PathProgramCache]: Analyzing trace with hash -732802510, now seen corresponding path program 2 times [2023-08-31 21:29:20,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:20,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359984649] [2023-08-31 21:29:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:20,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:29:21,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:21,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359984649] [2023-08-31 21:29:21,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359984649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:21,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:21,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:29:21,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488713997] [2023-08-31 21:29:21,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:21,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:29:21,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:21,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:29:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:29:21,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 813 [2023-08-31 21:29:21,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 83 transitions, 304 flow. Second operand has 6 states, 6 states have (on average 372.5) internal successors, (2235), 6 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:21,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:21,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 813 [2023-08-31 21:29:21,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:21,594 INFO L130 PetriNetUnfolder]: 540/1556 cut-off events. [2023-08-31 21:29:21,595 INFO L131 PetriNetUnfolder]: For 97/124 co-relation queries the response was YES. [2023-08-31 21:29:21,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2855 conditions, 1556 events. 540/1556 cut-off events. For 97/124 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 10235 event pairs, 248 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2841. Up to 539 conditions per place. [2023-08-31 21:29:21,601 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 86 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2023-08-31 21:29:21,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 130 transitions, 604 flow [2023-08-31 21:29:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:21,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2295 transitions. [2023-08-31 21:29:21,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470479704797048 [2023-08-31 21:29:21,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2295 transitions. [2023-08-31 21:29:21,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2295 transitions. [2023-08-31 21:29:21,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:21,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2295 transitions. [2023-08-31 21:29:21,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 382.5) internal successors, (2295), 6 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:21,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:21,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:21,614 INFO L175 Difference]: Start difference. First operand has 94 places, 83 transitions, 304 flow. Second operand 6 states and 2295 transitions. [2023-08-31 21:29:21,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 130 transitions, 604 flow [2023-08-31 21:29:21,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 130 transitions, 580 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-31 21:29:21,616 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 288 flow [2023-08-31 21:29:21,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2023-08-31 21:29:21,617 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -7 predicate places. [2023-08-31 21:29:21,617 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 288 flow [2023-08-31 21:29:21,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.5) internal successors, (2235), 6 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:21,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:21,618 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:21,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:29:21,618 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:21,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:21,618 INFO L85 PathProgramCache]: Analyzing trace with hash 642778151, now seen corresponding path program 1 times [2023-08-31 21:29:21,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:21,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519196194] [2023-08-31 21:29:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:21,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:29:21,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:21,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519196194] [2023-08-31 21:29:21,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519196194] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:21,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:21,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:29:21,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644686808] [2023-08-31 21:29:21,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:21,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:29:21,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:21,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:29:21,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:29:22,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 813 [2023-08-31 21:29:22,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:22,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:22,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 813 [2023-08-31 21:29:22,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:22,377 INFO L130 PetriNetUnfolder]: 512/1395 cut-off events. [2023-08-31 21:29:22,377 INFO L131 PetriNetUnfolder]: For 167/197 co-relation queries the response was YES. [2023-08-31 21:29:22,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2762 conditions, 1395 events. 512/1395 cut-off events. For 167/197 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8561 event pairs, 231 based on Foata normal form. 1/1341 useless extension candidates. Maximal degree in co-relation 2747. Up to 507 conditions per place. [2023-08-31 21:29:22,384 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 78 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2023-08-31 21:29:22,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 121 transitions, 572 flow [2023-08-31 21:29:22,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:22,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2287 transitions. [2023-08-31 21:29:22,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46883968839688395 [2023-08-31 21:29:22,389 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2287 transitions. [2023-08-31 21:29:22,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2287 transitions. [2023-08-31 21:29:22,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:22,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2287 transitions. [2023-08-31 21:29:22,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.1666666666667) internal successors, (2287), 6 states have internal predecessors, (2287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:22,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:22,398 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:22,398 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 288 flow. Second operand 6 states and 2287 transitions. [2023-08-31 21:29:22,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 121 transitions, 572 flow [2023-08-31 21:29:22,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 121 transitions, 554 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:29:22,401 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 286 flow [2023-08-31 21:29:22,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2023-08-31 21:29:22,401 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -8 predicate places. [2023-08-31 21:29:22,401 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 286 flow [2023-08-31 21:29:22,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:22,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:22,402 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:22,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:29:22,403 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:22,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1824341845, now seen corresponding path program 1 times [2023-08-31 21:29:22,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:22,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147019869] [2023-08-31 21:29:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:22,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:22,743 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:29:22,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:22,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147019869] [2023-08-31 21:29:22,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147019869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:22,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:22,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:29:22,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825445260] [2023-08-31 21:29:22,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:22,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:29:22,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:22,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:29:22,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:29:22,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 813 [2023-08-31 21:29:22,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 286 flow. Second operand has 6 states, 6 states have (on average 374.1666666666667) internal successors, (2245), 6 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:22,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:22,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 813 [2023-08-31 21:29:22,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:23,147 INFO L130 PetriNetUnfolder]: 372/1237 cut-off events. [2023-08-31 21:29:23,148 INFO L131 PetriNetUnfolder]: For 111/140 co-relation queries the response was YES. [2023-08-31 21:29:23,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2352 conditions, 1237 events. 372/1237 cut-off events. For 111/140 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 8119 event pairs, 235 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 2337. Up to 515 conditions per place. [2023-08-31 21:29:23,157 INFO L137 encePairwiseOnDemand]: 808/813 looper letters, 66 selfloop transitions, 4 changer transitions 8/116 dead transitions. [2023-08-31 21:29:23,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 116 transitions, 540 flow [2023-08-31 21:29:23,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:23,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2288 transitions. [2023-08-31 21:29:23,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46904469044690444 [2023-08-31 21:29:23,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2288 transitions. [2023-08-31 21:29:23,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2288 transitions. [2023-08-31 21:29:23,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:23,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2288 transitions. [2023-08-31 21:29:23,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.3333333333333) internal successors, (2288), 6 states have internal predecessors, (2288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,170 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,170 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 286 flow. Second operand 6 states and 2288 transitions. [2023-08-31 21:29:23,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 116 transitions, 540 flow [2023-08-31 21:29:23,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 116 transitions, 522 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:29:23,175 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 282 flow [2023-08-31 21:29:23,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=282, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2023-08-31 21:29:23,176 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -9 predicate places. [2023-08-31 21:29:23,177 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 282 flow [2023-08-31 21:29:23,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.1666666666667) internal successors, (2245), 6 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:23,177 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:23,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:29:23,177 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:23,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:23,178 INFO L85 PathProgramCache]: Analyzing trace with hash -796614774, now seen corresponding path program 1 times [2023-08-31 21:29:23,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:23,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390200072] [2023-08-31 21:29:23,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:23,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:29:23,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:23,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390200072] [2023-08-31 21:29:23,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390200072] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:23,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:23,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:29:23,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121403993] [2023-08-31 21:29:23,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:23,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:29:23,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:23,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:29:23,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:29:23,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 813 [2023-08-31 21:29:23,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:23,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 813 [2023-08-31 21:29:23,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:23,902 INFO L130 PetriNetUnfolder]: 380/1228 cut-off events. [2023-08-31 21:29:23,902 INFO L131 PetriNetUnfolder]: For 109/138 co-relation queries the response was YES. [2023-08-31 21:29:23,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2262 conditions, 1228 events. 380/1228 cut-off events. For 109/138 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7829 event pairs, 231 based on Foata normal form. 0/1190 useless extension candidates. Maximal degree in co-relation 2247. Up to 509 conditions per place. [2023-08-31 21:29:23,906 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 60 selfloop transitions, 5 changer transitions 12/115 dead transitions. [2023-08-31 21:29:23,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 115 transitions, 534 flow [2023-08-31 21:29:23,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2285 transitions. [2023-08-31 21:29:23,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46842968429684295 [2023-08-31 21:29:23,912 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2285 transitions. [2023-08-31 21:29:23,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2285 transitions. [2023-08-31 21:29:23,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:23,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2285 transitions. [2023-08-31 21:29:23,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 380.8333333333333) internal successors, (2285), 6 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,920 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 282 flow. Second operand 6 states and 2285 transitions. [2023-08-31 21:29:23,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 115 transitions, 534 flow [2023-08-31 21:29:23,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 115 transitions, 519 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:29:23,923 INFO L231 Difference]: Finished difference. Result has 92 places, 79 transitions, 283 flow [2023-08-31 21:29:23,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=92, PETRI_TRANSITIONS=79} [2023-08-31 21:29:23,924 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -9 predicate places. [2023-08-31 21:29:23,924 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 79 transitions, 283 flow [2023-08-31 21:29:23,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.8333333333333) internal successors, (2237), 6 states have internal predecessors, (2237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:23,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:29:23,925 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:23,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:29:23,925 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-08-31 21:29:23,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:29:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1898254503, now seen corresponding path program 1 times [2023-08-31 21:29:23,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:29:23,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890225828] [2023-08-31 21:29:23,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:29:23,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:29:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:29:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:29:24,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:29:24,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890225828] [2023-08-31 21:29:24,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890225828] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:29:24,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:29:24,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:29:24,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672520355] [2023-08-31 21:29:24,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:29:24,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:29:24,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:29:24,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:29:24,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:29:24,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 813 [2023-08-31 21:29:24,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 79 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 372.5) internal successors, (2235), 6 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:24,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:29:24,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 813 [2023-08-31 21:29:24,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:29:24,715 INFO L130 PetriNetUnfolder]: 425/1284 cut-off events. [2023-08-31 21:29:24,715 INFO L131 PetriNetUnfolder]: For 124/153 co-relation queries the response was YES. [2023-08-31 21:29:24,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2442 conditions, 1284 events. 425/1284 cut-off events. For 124/153 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8144 event pairs, 248 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 2427. Up to 543 conditions per place. [2023-08-31 21:29:24,724 INFO L137 encePairwiseOnDemand]: 807/813 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2023-08-31 21:29:24,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 122 transitions, 569 flow [2023-08-31 21:29:24,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:29:24,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:29:24,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2294 transitions. [2023-08-31 21:29:24,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4702747027470275 [2023-08-31 21:29:24,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2294 transitions. [2023-08-31 21:29:24,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2294 transitions. [2023-08-31 21:29:24,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:29:24,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2294 transitions. [2023-08-31 21:29:24,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 382.3333333333333) internal successors, (2294), 6 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:24,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:24,739 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 813.0) internal successors, (5691), 7 states have internal predecessors, (5691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:24,739 INFO L175 Difference]: Start difference. First operand has 92 places, 79 transitions, 283 flow. Second operand 6 states and 2294 transitions. [2023-08-31 21:29:24,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 122 transitions, 569 flow [2023-08-31 21:29:24,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 122 transitions, 543 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:29:24,742 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2023-08-31 21:29:24,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=813, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2023-08-31 21:29:24,743 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -10 predicate places. [2023-08-31 21:29:24,743 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2023-08-31 21:29:24,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 372.5) internal successors, (2235), 6 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:29:24,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2023-08-31 21:29:24,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-08-31 21:29:24,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-08-31 21:29:24,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-08-31 21:29:24,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-08-31 21:29:24,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-08-31 21:29:24,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-08-31 21:29:24,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-08-31 21:29:24,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-08-31 21:29:24,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-08-31 21:29:24,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-08-31 21:29:24,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-08-31 21:29:24,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-08-31 21:29:24,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-08-31 21:29:24,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-08-31 21:29:24,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-08-31 21:29:24,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-08-31 21:29:24,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-08-31 21:29:24,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-08-31 21:29:24,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-08-31 21:29:24,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-08-31 21:29:24,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-08-31 21:29:24,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-08-31 21:29:24,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-08-31 21:29:24,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-08-31 21:29:24,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-08-31 21:29:24,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-08-31 21:29:24,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-08-31 21:29:24,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-08-31 21:29:24,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-08-31 21:29:24,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-08-31 21:29:24,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-08-31 21:29:24,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-08-31 21:29:24,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-08-31 21:29:24,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-08-31 21:29:24,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-08-31 21:29:24,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-08-31 21:29:24,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-08-31 21:29:24,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-08-31 21:29:24,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-08-31 21:29:24,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-08-31 21:29:24,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-08-31 21:29:24,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-08-31 21:29:24,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-08-31 21:29:24,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:29:24,754 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:29:24,759 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:29:24,759 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:29:24,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:29:24 BasicIcfg [2023-08-31 21:29:24,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:29:24,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:29:24,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:29:24,762 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:29:24,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:29:09" (3/4) ... [2023-08-31 21:29:24,764 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:29:24,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:29:24,768 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:29:24,773 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-31 21:29:24,773 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:29:24,774 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:29:24,774 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:29:24,824 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:29:24,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:29:24,825 INFO L158 Benchmark]: Toolchain (without parser) took 16517.25ms. Allocated memory was 62.9MB in the beginning and 427.8MB in the end (delta: 364.9MB). Free memory was 29.9MB in the beginning and 304.9MB in the end (delta: -275.0MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2023-08-31 21:29:24,825 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:29:24,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.24ms. Allocated memory is still 62.9MB. Free memory was 29.7MB in the beginning and 35.0MB in the end (delta: -5.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-08-31 21:29:24,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.77ms. Allocated memory is still 62.9MB. Free memory was 34.8MB in the beginning and 31.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:29:24,826 INFO L158 Benchmark]: Boogie Preprocessor took 24.74ms. Allocated memory is still 62.9MB. Free memory was 31.7MB in the beginning and 29.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:29:24,826 INFO L158 Benchmark]: RCFGBuilder took 554.49ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 147.8kB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-08-31 21:29:24,826 INFO L158 Benchmark]: TraceAbstraction took 15662.51ms. Allocated memory was 77.6MB in the beginning and 427.8MB in the end (delta: 350.2MB). Free memory was 27.9MB in the beginning and 309.1MB in the end (delta: -281.2MB). Peak memory consumption was 187.2MB. Max. memory is 16.1GB. [2023-08-31 21:29:24,827 INFO L158 Benchmark]: Witness Printer took 62.64ms. Allocated memory is still 427.8MB. Free memory was 309.1MB in the beginning and 304.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:29:24,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.24ms. Allocated memory is still 62.9MB. Free memory was 29.7MB in the beginning and 35.0MB in the end (delta: -5.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.77ms. Allocated memory is still 62.9MB. Free memory was 34.8MB in the beginning and 31.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.74ms. Allocated memory is still 62.9MB. Free memory was 31.7MB in the beginning and 29.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.49ms. Allocated memory was 62.9MB in the beginning and 77.6MB in the end (delta: 14.7MB). Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 147.8kB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15662.51ms. Allocated memory was 77.6MB in the beginning and 427.8MB in the end (delta: 350.2MB). Free memory was 27.9MB in the beginning and 309.1MB in the end (delta: -281.2MB). Peak memory consumption was 187.2MB. Max. memory is 16.1GB. * Witness Printer took 62.64ms. Allocated memory is still 427.8MB. Free memory was 309.1MB in the beginning and 304.9MB 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 373 PlacesBefore, 101 PlacesAfterwards, 390 TransitionsBefore, 100 TransitionsAfterwards, 24320 CoEnabledTransitionPairs, 8 FixpointIterations, 177 TrivialSequentialCompositions, 161 ConcurrentSequentialCompositions, 26 TrivialYvCompositions, 21 ConcurrentYvCompositions, 18 ChoiceCompositions, 403 TotalNumberOfCompositions, 77925 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28677, independent: 27668, independent conditional: 0, independent unconditional: 27668, dependent: 1009, dependent conditional: 0, dependent unconditional: 1009, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12634, independent: 12542, independent conditional: 0, independent unconditional: 12542, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 28677, independent: 15126, independent conditional: 0, independent unconditional: 15126, dependent: 917, dependent conditional: 0, dependent unconditional: 917, unknown: 12634, unknown conditional: 0, unknown unconditional: 12634] , Statistics on independence cache: Total cache size (in pairs): 782, Positive cache size: 720, Positive conditional cache size: 0, Positive unconditional cache size: 720, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: 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: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: 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: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: 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: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: 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: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 567 locations, 60 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: 15.5s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1958 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1267 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 629 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3963 IncrementalHoareTripleChecker+Invalid, 4592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 629 mSolverCounterUnsat, 29 mSDtfsCounter, 3963 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=9, InterpolantAutomatonStates: 67, 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, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 322 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 2 NumberOfNonLiveVariables, 694 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 233/276 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:29:24,865 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