./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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-nzb-file-subst.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:53:14,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:53:14,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:53:14,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:53:14,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:53:14,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:53:14,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:53:14,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:53:14,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:53:14,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:53:14,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:53:14,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:53:14,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:53:14,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:53:14,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:53:14,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:53:14,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:53:14,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:53:14,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:53:14,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:53:14,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:53:14,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:53:14,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:53:14,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:53:14,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:53:14,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:53:14,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:53:14,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:53:14,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:53:14,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:53:14,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:53:14,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:53:14,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:53:14,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:53:14,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:53:14,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:53:14,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:53:14,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:53:14,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:53:14,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:53:14,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:53:14,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:53:14,163 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:53:14,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:53:14,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:53:14,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:53:14,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:53:14,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:53:14,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:53:14,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:53:14,166 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:53:14,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:53:14,167 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:53:14,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:53:14,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:53:14,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:53:14,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:53:14,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:53:14,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:53:14,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:53:14,169 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:53:14,169 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:53:14,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:53:14,169 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:53:14,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:53:14,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:53:14,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:53:14,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:53:14,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:53:14,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:53:14,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:53:14,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:53:14,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:53:14,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:53:14,171 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:53:14,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:53:14,172 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:53:14,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:53:14,172 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:53:14,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:53:14,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:53:14,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:53:14,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:53:14,501 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:53:14,501 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:53:14,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c [2023-08-29 18:53:15,671 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:53:15,847 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:53:15,848 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-subst.wvr.c [2023-08-29 18:53:15,855 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c1e6c41/5724590663fc4d4fbf4ae84490b3eace/FLAGde2ec27ed [2023-08-29 18:53:15,873 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c1e6c41/5724590663fc4d4fbf4ae84490b3eace [2023-08-29 18:53:15,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:53:15,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:53:15,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:53:15,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:53:15,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:53:15,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:53:15" (1/1) ... [2023-08-29 18:53:15,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce3f77b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:15, skipping insertion in model container [2023-08-29 18:53:15,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:53:15" (1/1) ... [2023-08-29 18:53:15,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:53:15,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:53:16,199 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-nzb-file-subst.wvr.c[6501,6514] [2023-08-29 18:53:16,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:53:16,227 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:53:16,304 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-nzb-file-subst.wvr.c[6501,6514] [2023-08-29 18:53:16,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:53:16,346 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:53:16,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16 WrapperNode [2023-08-29 18:53:16,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:53:16,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:53:16,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:53:16,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:53:16,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,435 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1336 [2023-08-29 18:53:16,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:53:16,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:53:16,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:53:16,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:53:16,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,497 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:53:16,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:53:16,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:53:16,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:53:16,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (1/1) ... [2023-08-29 18:53:16,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:53:16,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:53:16,538 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) [2023-08-29 18:53:16,583 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 [2023-08-29 18:53:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:53:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:53:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:53:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:53:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:53:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:53:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:53:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:53:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 18:53:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 18:53:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:53:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:53:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:53:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:53:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:53:16,601 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:53:16,828 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:53:16,830 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:53:18,221 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:53:18,237 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:53:18,238 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 18:53:18,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:53:18 BoogieIcfgContainer [2023-08-29 18:53:18,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:53:18,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:53:18,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:53:18,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:53:18,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:53:15" (1/3) ... [2023-08-29 18:53:18,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fc390e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:53:18, skipping insertion in model container [2023-08-29 18:53:18,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:16" (2/3) ... [2023-08-29 18:53:18,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fc390e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:53:18, skipping insertion in model container [2023-08-29 18:53:18,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:53:18" (3/3) ... [2023-08-29 18:53:18,249 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2023-08-29 18:53:18,256 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:53:18,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:53:18,265 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 230 error locations. [2023-08-29 18:53:18,265 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:53:18,493 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 18:53:18,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1608 places, 1709 transitions, 3442 flow [2023-08-29 18:53:20,188 INFO L130 PetriNetUnfolder]: 111/1706 cut-off events. [2023-08-29 18:53:20,188 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:53:20,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1719 conditions, 1706 events. 111/1706 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7459 event pairs, 0 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-29 18:53:20,270 INFO L82 GeneralOperation]: Start removeDead. Operand has 1608 places, 1709 transitions, 3442 flow [2023-08-29 18:53:20,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1585 places, 1683 transitions, 3384 flow [2023-08-29 18:53:20,349 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:53:20,361 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1585 places, 1683 transitions, 3384 flow [2023-08-29 18:53:20,365 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1585 places, 1683 transitions, 3384 flow [2023-08-29 18:53:20,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1585 places, 1683 transitions, 3384 flow [2023-08-29 18:53:21,256 INFO L130 PetriNetUnfolder]: 108/1683 cut-off events. [2023-08-29 18:53:21,257 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:53:21,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 1683 events. 108/1683 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7318 event pairs, 0 based on Foata normal form. 0/1346 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-29 18:53:21,570 INFO L119 LiptonReduction]: Number of co-enabled transitions 1187286 [2023-08-29 18:53:55,812 INFO L134 LiptonReduction]: Checked pairs total: 3237948 [2023-08-29 18:53:55,813 INFO L136 LiptonReduction]: Total number of compositions: 1863 [2023-08-29 18:53:55,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:53:55,845 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;@228f4730, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:53:55,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2023-08-29 18:53:55,847 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:53:55,848 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:53:55,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:53:55,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:53:55,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-08-29 18:53:55,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:53:55,854 INFO L85 PathProgramCache]: Analyzing trace with hash 7018, now seen corresponding path program 1 times [2023-08-29 18:53:55,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:53:55,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074923452] [2023-08-29 18:53:55,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:53:55,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:53:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:53:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:53:55,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:53:55,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074923452] [2023-08-29 18:53:55,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074923452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:53:55,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:53:55,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:53:55,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172866980] [2023-08-29 18:53:55,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:53:55,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:53:55,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:53:56,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:53:56,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:53:56,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1665 out of 3572 [2023-08-29 18:53:56,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 496 transitions, 1010 flow. Second operand has 2 states, 2 states have (on average 1665.5) internal successors, (3331), 2 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:53:56,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:53:56,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1665 of 3572 [2023-08-29 18:53:56,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:55:17,702 INFO L130 PetriNetUnfolder]: 770085/1229078 cut-off events. [2023-08-29 18:55:17,703 INFO L131 PetriNetUnfolder]: For 9531/10422 co-relation queries the response was YES. [2023-08-29 18:55:21,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2241334 conditions, 1229078 events. 770085/1229078 cut-off events. For 9531/10422 co-relation queries the response was YES. Maximal size of possible extension queue 20067. Compared 12947999 event pairs, 568454 based on Foata normal form. 9601/1023967 useless extension candidates. Maximal degree in co-relation 2197497. Up to 1005193 conditions per place. [2023-08-29 18:55:28,819 INFO L137 encePairwiseOnDemand]: 3425/3572 looper letters, 201 selfloop transitions, 0 changer transitions 1/349 dead transitions. [2023-08-29 18:55:28,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 349 transitions, 1120 flow [2023-08-29 18:55:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:55:28,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:55:28,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3679 transitions. [2023-08-29 18:55:28,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5149776035834267 [2023-08-29 18:55:28,883 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 3679 transitions. [2023-08-29 18:55:28,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 3679 transitions. [2023-08-29 18:55:28,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:55:28,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 3679 transitions. [2023-08-29 18:55:28,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1839.5) internal successors, (3679), 2 states have internal predecessors, (3679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:28,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 3572.0) internal successors, (10716), 3 states have internal predecessors, (10716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:28,974 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 3572.0) internal successors, (10716), 3 states have internal predecessors, (10716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:28,976 INFO L175 Difference]: Start difference. First operand has 457 places, 496 transitions, 1010 flow. Second operand 2 states and 3679 transitions. [2023-08-29 18:55:28,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 349 transitions, 1120 flow [2023-08-29 18:55:29,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 349 transitions, 1108 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 18:55:29,124 INFO L231 Difference]: Finished difference. Result has 309 places, 348 transitions, 701 flow [2023-08-29 18:55:29,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3572, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=701, PETRI_PLACES=309, PETRI_TRANSITIONS=348} [2023-08-29 18:55:29,131 INFO L281 CegarLoopForPetriNet]: 457 programPoint places, -148 predicate places. [2023-08-29 18:55:29,132 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 348 transitions, 701 flow [2023-08-29 18:55:29,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1665.5) internal successors, (3331), 2 states have internal predecessors, (3331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:29,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:55:29,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:55:29,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:55:29,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err57ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-08-29 18:55:29,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:55:29,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1758057632, now seen corresponding path program 1 times [2023-08-29 18:55:29,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:55:29,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101315442] [2023-08-29 18:55:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:55:29,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:55:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:55:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:55:29,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:55:29,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101315442] [2023-08-29 18:55:29,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101315442] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:55:29,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:55:29,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:55:29,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672309758] [2023-08-29 18:55:29,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:55:29,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:55:29,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:55:29,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:55:29,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:55:29,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1653 out of 3572 [2023-08-29 18:55:29,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 348 transitions, 701 flow. Second operand has 3 states, 3 states have (on average 1655.0) internal successors, (4965), 3 states have internal predecessors, (4965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:55:29,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:55:29,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1653 of 3572 [2023-08-29 18:55:29,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:56:51,301 INFO L130 PetriNetUnfolder]: 770085/1229080 cut-off events. [2023-08-29 18:56:51,302 INFO L131 PetriNetUnfolder]: For 2352/3243 co-relation queries the response was YES. [2023-08-29 18:56:54,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2236630 conditions, 1229080 events. 770085/1229080 cut-off events. For 2352/3243 co-relation queries the response was YES. Maximal size of possible extension queue 20067. Compared 12946837 event pairs, 568454 based on Foata normal form. 0/1014368 useless extension candidates. Maximal degree in co-relation 2236627. Up to 1005192 conditions per place. [2023-08-29 18:57:01,165 INFO L137 encePairwiseOnDemand]: 3565/3572 looper letters, 198 selfloop transitions, 6 changer transitions 0/351 dead transitions. [2023-08-29 18:57:01,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 351 transitions, 1115 flow [2023-08-29 18:57:01,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:57:01,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:57:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5166 transitions. [2023-08-29 18:57:01,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4820828667413214 [2023-08-29 18:57:01,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5166 transitions. [2023-08-29 18:57:01,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5166 transitions. [2023-08-29 18:57:01,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:57:01,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5166 transitions. [2023-08-29 18:57:01,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1722.0) internal successors, (5166), 3 states have internal predecessors, (5166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:01,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3572.0) internal successors, (14288), 4 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:01,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3572.0) internal successors, (14288), 4 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:01,293 INFO L175 Difference]: Start difference. First operand has 309 places, 348 transitions, 701 flow. Second operand 3 states and 5166 transitions. [2023-08-29 18:57:01,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 351 transitions, 1115 flow [2023-08-29 18:57:01,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 351 transitions, 1115 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:57:01,314 INFO L231 Difference]: Finished difference. Result has 311 places, 351 transitions, 733 flow [2023-08-29 18:57:01,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3572, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=733, PETRI_PLACES=311, PETRI_TRANSITIONS=351} [2023-08-29 18:57:01,315 INFO L281 CegarLoopForPetriNet]: 457 programPoint places, -146 predicate places. [2023-08-29 18:57:01,315 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 351 transitions, 733 flow [2023-08-29 18:57:01,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1655.0) internal successors, (4965), 3 states have internal predecessors, (4965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:01,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:57:01,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:57:01,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:57:01,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err57ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-08-29 18:57:01,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:57:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1768622122, now seen corresponding path program 1 times [2023-08-29 18:57:01,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:57:01,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143800357] [2023-08-29 18:57:01,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:57:01,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:57:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:57:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 18:57:01,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:57:01,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143800357] [2023-08-29 18:57:01,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143800357] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:57:01,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:57:01,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:57:01,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304527942] [2023-08-29 18:57:01,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:57:01,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:57:01,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:57:01,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:57:01,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:57:01,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1640 out of 3572 [2023-08-29 18:57:01,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 351 transitions, 733 flow. Second operand has 3 states, 3 states have (on average 1643.3333333333333) internal successors, (4930), 3 states have internal predecessors, (4930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:01,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:57:01,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1640 of 3572 [2023-08-29 18:57:01,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:27,657 INFO L130 PetriNetUnfolder]: 770085/1226866 cut-off events. [2023-08-29 18:58:27,658 INFO L131 PetriNetUnfolder]: For 2208/2208 co-relation queries the response was YES. [2023-08-29 18:58:30,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2234431 conditions, 1226866 events. 770085/1226866 cut-off events. For 2208/2208 co-relation queries the response was YES. Maximal size of possible extension queue 20018. Compared 12902959 event pairs, 370992 based on Foata normal form. 0/1014063 useless extension candidates. Maximal degree in co-relation 2234426. Up to 1005006 conditions per place. [2023-08-29 18:58:35,545 INFO L137 encePairwiseOnDemand]: 3560/3572 looper letters, 271 selfloop transitions, 4 changer transitions 0/414 dead transitions. [2023-08-29 18:58:35,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 414 transitions, 1411 flow [2023-08-29 18:58:35,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5200 transitions. [2023-08-29 18:58:35,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48525569242254574 [2023-08-29 18:58:35,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5200 transitions. [2023-08-29 18:58:35,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5200 transitions. [2023-08-29 18:58:35,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:35,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5200 transitions. [2023-08-29 18:58:35,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1733.3333333333333) internal successors, (5200), 3 states have internal predecessors, (5200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:35,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3572.0) internal successors, (14288), 4 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:35,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3572.0) internal successors, (14288), 4 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:35,623 INFO L175 Difference]: Start difference. First operand has 311 places, 351 transitions, 733 flow. Second operand 3 states and 5200 transitions. [2023-08-29 18:58:35,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 414 transitions, 1411 flow [2023-08-29 18:58:35,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 414 transitions, 1405 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:58:35,631 INFO L231 Difference]: Finished difference. Result has 305 places, 347 transitions, 739 flow [2023-08-29 18:58:35,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3572, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=739, PETRI_PLACES=305, PETRI_TRANSITIONS=347} [2023-08-29 18:58:35,634 INFO L281 CegarLoopForPetriNet]: 457 programPoint places, -152 predicate places. [2023-08-29 18:58:35,636 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 347 transitions, 739 flow [2023-08-29 18:58:35,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1643.3333333333333) internal successors, (4930), 3 states have internal predecessors, (4930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:35,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:35,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:35,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:58:35,639 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err58ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-08-29 18:58:35,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:35,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1159406460, now seen corresponding path program 1 times [2023-08-29 18:58:35,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:35,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607680590] [2023-08-29 18:58:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:35,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 18:58:35,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607680590] [2023-08-29 18:58:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607680590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:35,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:35,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:58:35,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686896020] [2023-08-29 18:58:35,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:35,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:35,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:35,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:35,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:35,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1640 out of 3572 [2023-08-29 18:58:35,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 347 transitions, 739 flow. Second operand has 3 states, 3 states have (on average 1644.0) internal successors, (4932), 3 states have internal predecessors, (4932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:35,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:35,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1640 of 3572 [2023-08-29 18:58:35,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:00:08,742 INFO L130 PetriNetUnfolder]: 819880/1276200 cut-off events. [2023-08-29 19:00:08,742 INFO L131 PetriNetUnfolder]: For 12532/12699 co-relation queries the response was YES. [2023-08-29 19:00:11,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2371115 conditions, 1276200 events. 819880/1276200 cut-off events. For 12532/12699 co-relation queries the response was YES. Maximal size of possible extension queue 20063. Compared 13054481 event pairs, 160762 based on Foata normal form. 0/1053466 useless extension candidates. Maximal degree in co-relation 2371110. Up to 1062267 conditions per place. [2023-08-29 19:00:17,027 INFO L137 encePairwiseOnDemand]: 3558/3572 looper letters, 300 selfloop transitions, 6 changer transitions 0/434 dead transitions. [2023-08-29 19:00:17,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 434 transitions, 1549 flow [2023-08-29 19:00:17,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:00:17,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:00:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5223 transitions. [2023-08-29 19:00:17,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4874020156774916 [2023-08-29 19:00:17,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5223 transitions. [2023-08-29 19:00:17,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5223 transitions. [2023-08-29 19:00:17,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:00:17,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5223 transitions. [2023-08-29 19:00:17,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1741.0) internal successors, (5223), 3 states have internal predecessors, (5223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:17,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3572.0) internal successors, (14288), 4 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:17,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3572.0) internal successors, (14288), 4 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:17,062 INFO L175 Difference]: Start difference. First operand has 305 places, 347 transitions, 739 flow. Second operand 3 states and 5223 transitions. [2023-08-29 19:00:17,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 434 transitions, 1549 flow [2023-08-29 19:00:17,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 434 transitions, 1549 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:00:17,072 INFO L231 Difference]: Finished difference. Result has 300 places, 345 transitions, 765 flow [2023-08-29 19:00:17,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3572, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=300, PETRI_TRANSITIONS=345} [2023-08-29 19:00:17,073 INFO L281 CegarLoopForPetriNet]: 457 programPoint places, -157 predicate places. [2023-08-29 19:00:17,073 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 345 transitions, 765 flow [2023-08-29 19:00:17,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1644.0) internal successors, (4932), 3 states have internal predecessors, (4932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:17,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:00:17,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:00:17,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 19:00:17,075 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err58ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-08-29 19:00:17,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:00:17,076 INFO L85 PathProgramCache]: Analyzing trace with hash 769638580, now seen corresponding path program 1 times [2023-08-29 19:00:17,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:00:17,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889556148] [2023-08-29 19:00:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:00:17,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:00:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:00:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:00:17,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:00:17,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889556148] [2023-08-29 19:00:17,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889556148] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:00:17,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:00:17,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:00:17,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514870783] [2023-08-29 19:00:17,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:00:17,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:00:17,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:00:17,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:00:17,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:00:17,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1640 out of 3572 [2023-08-29 19:00:17,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 345 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 1644.6666666666667) internal successors, (4934), 3 states have internal predecessors, (4934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:17,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:00:17,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1640 of 3572 [2023-08-29 19:00:17,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:01:47,627 INFO L130 PetriNetUnfolder]: 914865/1426675 cut-off events. [2023-08-29 19:01:47,627 INFO L131 PetriNetUnfolder]: For 32731/33836 co-relation queries the response was YES. [2023-08-29 19:01:51,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2681378 conditions, 1426675 events. 914865/1426675 cut-off events. For 32731/33836 co-relation queries the response was YES. Maximal size of possible extension queue 22228. Compared 14684814 event pairs, 169044 based on Foata normal form. 4/1175651 useless extension candidates. Maximal degree in co-relation 2681372. Up to 1105750 conditions per place. [2023-08-29 19:01:59,341 INFO L137 encePairwiseOnDemand]: 3556/3572 looper letters, 323 selfloop transitions, 8 changer transitions 0/453 dead transitions. [2023-08-29 19:01:59,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 453 transitions, 1686 flow [2023-08-29 19:01:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:01:59,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:01:59,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5240 transitions. [2023-08-29 19:01:59,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48898842851810376 [2023-08-29 19:01:59,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5240 transitions. [2023-08-29 19:01:59,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5240 transitions. [2023-08-29 19:01:59,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:01:59,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5240 transitions. [2023-08-29 19:01:59,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1746.6666666666667) internal successors, (5240), 3 states have internal predecessors, (5240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:01:59,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3572.0) internal successors, (14288), 4 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:01:59,425 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3572.0) internal successors, (14288), 4 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:01:59,425 INFO L175 Difference]: Start difference. First operand has 300 places, 345 transitions, 765 flow. Second operand 3 states and 5240 transitions. [2023-08-29 19:01:59,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 453 transitions, 1686 flow [2023-08-29 19:01:59,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 453 transitions, 1686 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:01:59,496 INFO L231 Difference]: Finished difference. Result has 295 places, 345 transitions, 805 flow [2023-08-29 19:01:59,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3572, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=805, PETRI_PLACES=295, PETRI_TRANSITIONS=345} [2023-08-29 19:01:59,497 INFO L281 CegarLoopForPetriNet]: 457 programPoint places, -162 predicate places. [2023-08-29 19:01:59,497 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 345 transitions, 805 flow [2023-08-29 19:01:59,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1644.6666666666667) internal successors, (4934), 3 states have internal predecessors, (4934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:01:59,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:01:59,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:01:59,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 19:01:59,499 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2023-08-29 19:01:59,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:01:59,499 INFO L85 PathProgramCache]: Analyzing trace with hash 435808056, now seen corresponding path program 1 times [2023-08-29 19:01:59,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:01:59,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808397594] [2023-08-29 19:01:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:01:59,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:01:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:01:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:01:59,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:01:59,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808397594] [2023-08-29 19:01:59,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808397594] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:01:59,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:01:59,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 19:01:59,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670804482] [2023-08-29 19:01:59,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:01:59,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:01:59,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:01:59,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:01:59,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:01:59,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1661 out of 3572 [2023-08-29 19:01:59,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 345 transitions, 805 flow. Second operand has 3 states, 3 states have (on average 1665.3333333333333) internal successors, (4996), 3 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:01:59,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:01:59,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1661 of 3572 [2023-08-29 19:01:59,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15