./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.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-file-item-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 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 --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 18:51:40,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:51:40,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:51:40,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:51:40,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:51:40,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:51:40,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:51:40,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:51:40,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:51:40,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:51:40,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:51:40,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:51:40,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:51:40,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:51:40,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:51:40,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:51:40,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:51:40,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:51:40,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:51:40,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:51:40,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:51:40,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:51:40,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:51:40,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:51:40,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:51:40,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:51:40,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:51:40,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:51:40,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:51:40,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:51:40,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:51:40,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:51:40,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:51:40,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:51:40,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:51:40,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:51:40,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:51:40,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:51:40,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:51:40,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:51:40,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:51:40,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:51:40,440 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:51:40,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:51:40,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:51:40,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:51:40,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:51:40,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:51:40,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:51:40,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:51:40,442 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:51:40,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:51:40,442 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:51:40,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:51:40,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:51:40,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:51:40,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:51:40,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:51:40,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:51:40,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:51:40,444 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:51:40,444 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:51:40,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:51:40,444 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:51:40,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:51:40,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:51:40,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:51:40,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:51:40,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:51:40,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:51:40,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:51:40,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:51:40,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:51:40,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:51:40,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:51:40,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:51:40,446 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:51:40,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:51:40,447 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:51:40,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:51:40,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:51:40,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:51:40,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:51:40,669 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:51:40,670 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:51:40,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-29 18:51:41,661 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:51:41,775 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:51:41,776 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-29 18:51:41,780 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf37d5f8/3b551ee488ea46dd9a7691b1c942d196/FLAGc00e3eb87 [2023-08-29 18:51:41,790 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdf37d5f8/3b551ee488ea46dd9a7691b1c942d196 [2023-08-29 18:51:41,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:51:41,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:51:41,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:51:41,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:51:41,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:51:41,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:41,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13b53caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41, skipping insertion in model container [2023-08-29 18:51:41,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:41,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:51:41,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:51:41,922 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-file-item-symm.wvr.c[2495,2508] [2023-08-29 18:51:41,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:51:41,929 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:51:41,944 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-file-item-symm.wvr.c[2495,2508] [2023-08-29 18:51:41,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:51:41,953 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:51:41,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41 WrapperNode [2023-08-29 18:51:41,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:51:41,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:51:41,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:51:41,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:51:41,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:41,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:41,999 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 246 [2023-08-29 18:51:42,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:51:42,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:51:42,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:51:42,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:51:42,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,033 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:51:42,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:51:42,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:51:42,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:51:42,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (1/1) ... [2023-08-29 18:51:42,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:51:42,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:51:42,061 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 18:51:42,085 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 18:51:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:51:42,090 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:51:42,090 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:51:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:51:42,091 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:51:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:51:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:51:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:51:42,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:51:42,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:51:42,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:51:42,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:51:42,093 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 18:51:42,223 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:51:42,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:51:42,549 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:51:42,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:51:42,556 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 18:51:42,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:51:42 BoogieIcfgContainer [2023-08-29 18:51:42,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:51:42,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:51:42,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:51:42,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:51:42,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:51:41" (1/3) ... [2023-08-29 18:51:42,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58603893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:51:42, skipping insertion in model container [2023-08-29 18:51:42,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:51:41" (2/3) ... [2023-08-29 18:51:42,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58603893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:51:42, skipping insertion in model container [2023-08-29 18:51:42,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:51:42" (3/3) ... [2023-08-29 18:51:42,563 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-08-29 18:51:42,568 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:51:42,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:51:42,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-29 18:51:42,574 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:51:42,642 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 18:51:42,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 306 transitions, 628 flow [2023-08-29 18:51:42,728 INFO L130 PetriNetUnfolder]: 18/304 cut-off events. [2023-08-29 18:51:42,729 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:51:42,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 304 events. 18/304 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 625 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-29 18:51:42,741 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 306 transitions, 628 flow [2023-08-29 18:51:42,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 277 places, 286 transitions, 584 flow [2023-08-29 18:51:42,748 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:51:42,754 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 286 transitions, 584 flow [2023-08-29 18:51:42,756 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 286 transitions, 584 flow [2023-08-29 18:51:42,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 277 places, 286 transitions, 584 flow [2023-08-29 18:51:42,808 INFO L130 PetriNetUnfolder]: 16/286 cut-off events. [2023-08-29 18:51:42,809 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:51:42,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 286 events. 16/286 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 613 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-29 18:51:42,818 INFO L119 LiptonReduction]: Number of co-enabled transitions 15476 [2023-08-29 18:51:47,443 INFO L134 LiptonReduction]: Checked pairs total: 54733 [2023-08-29 18:51:47,444 INFO L136 LiptonReduction]: Total number of compositions: 294 [2023-08-29 18:51:47,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:51:47,471 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;@92df6e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:51:47,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-08-29 18:51:47,474 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:51:47,474 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:51:47,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:47,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:51:47,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 18:51:47,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1144, now seen corresponding path program 1 times [2023-08-29 18:51:47,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:47,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341139529] [2023-08-29 18:51:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:47,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:47,584 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 18:51:47,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:47,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341139529] [2023-08-29 18:51:47,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341139529] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:47,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:47,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:51:47,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390999109] [2023-08-29 18:51:47,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:47,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:51:47,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:47,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:51:47,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:51:47,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 600 [2023-08-29 18:51:47,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 81 transitions, 174 flow. Second operand has 2 states, 2 states have (on average 294.5) internal successors, (589), 2 states have internal predecessors, (589), 0 states have call successors, (0), 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 18:51:47,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:47,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 600 [2023-08-29 18:51:47,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:47,740 INFO L130 PetriNetUnfolder]: 400/872 cut-off events. [2023-08-29 18:51:47,740 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-29 18:51:47,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1506 conditions, 872 events. 400/872 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5267 event pairs, 240 based on Foata normal form. 1/664 useless extension candidates. Maximal degree in co-relation 1400. Up to 601 conditions per place. [2023-08-29 18:51:47,746 INFO L137 encePairwiseOnDemand]: 585/600 looper letters, 31 selfloop transitions, 0 changer transitions 1/66 dead transitions. [2023-08-29 18:51:47,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 208 flow [2023-08-29 18:51:47,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:51:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:51:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 635 transitions. [2023-08-29 18:51:47,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291666666666667 [2023-08-29 18:51:47,761 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 635 transitions. [2023-08-29 18:51:47,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 635 transitions. [2023-08-29 18:51:47,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:47,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 635 transitions. [2023-08-29 18:51:47,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 317.5) internal successors, (635), 2 states have internal predecessors, (635), 0 states have call successors, (0), 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 18:51:47,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 600.0) internal successors, (1800), 3 states have internal predecessors, (1800), 0 states have call successors, (0), 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 18:51:47,773 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 600.0) internal successors, (1800), 3 states have internal predecessors, (1800), 0 states have call successors, (0), 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 18:51:47,774 INFO L175 Difference]: Start difference. First operand has 80 places, 81 transitions, 174 flow. Second operand 2 states and 635 transitions. [2023-08-29 18:51:47,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 208 flow [2023-08-29 18:51:47,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:51:47,778 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 133 flow [2023-08-29 18:51:47,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=133, PETRI_PLACES=62, PETRI_TRANSITIONS=65} [2023-08-29 18:51:47,781 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2023-08-29 18:51:47,782 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 133 flow [2023-08-29 18:51:47,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 294.5) internal successors, (589), 2 states have internal predecessors, (589), 0 states have call successors, (0), 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 18:51:47,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:47,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:51:47,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:51:47,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 18:51:47,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:47,789 INFO L85 PathProgramCache]: Analyzing trace with hash 35350171, now seen corresponding path program 1 times [2023-08-29 18:51:47,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:47,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736875042] [2023-08-29 18:51:47,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:47,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:47,885 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 18:51:47,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:47,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736875042] [2023-08-29 18:51:47,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736875042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:47,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:47,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:51:47,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265911048] [2023-08-29 18:51:47,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:47,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:51:47,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:47,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:51:47,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:51:47,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-29 18:51:47,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 65 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 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 18:51:47,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:47,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-29 18:51:47,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:48,078 INFO L130 PetriNetUnfolder]: 552/1139 cut-off events. [2023-08-29 18:51:48,078 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-29 18:51:48,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 1139 events. 552/1139 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6460 event pairs, 202 based on Foata normal form. 0/929 useless extension candidates. Maximal degree in co-relation 1990. Up to 828 conditions per place. [2023-08-29 18:51:48,084 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 40 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2023-08-29 18:51:48,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 70 transitions, 230 flow [2023-08-29 18:51:48,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:51:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:51:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-29 18:51:48,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4988888888888889 [2023-08-29 18:51:48,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-29 18:51:48,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-29 18:51:48,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:48,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-29 18:51:48,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 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 18:51:48,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,093 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 133 flow. Second operand 3 states and 898 transitions. [2023-08-29 18:51:48,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 70 transitions, 230 flow [2023-08-29 18:51:48,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 70 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:51:48,095 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 148 flow [2023-08-29 18:51:48,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2023-08-29 18:51:48,096 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-29 18:51:48,096 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 148 flow [2023-08-29 18:51:48,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 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 18:51:48,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:48,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:51:48,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:51:48,097 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 18:51:48,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:48,098 INFO L85 PathProgramCache]: Analyzing trace with hash -388194731, now seen corresponding path program 1 times [2023-08-29 18:51:48,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:48,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316444999] [2023-08-29 18:51:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:48,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:48,142 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 18:51:48,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:48,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316444999] [2023-08-29 18:51:48,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316444999] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:48,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:48,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:51:48,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825832852] [2023-08-29 18:51:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:48,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:51:48,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:48,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:51:48,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:51:48,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-29 18:51:48,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 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 18:51:48,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:48,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-29 18:51:48,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:48,248 INFO L130 PetriNetUnfolder]: 453/994 cut-off events. [2023-08-29 18:51:48,249 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-08-29 18:51:48,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1738 conditions, 994 events. 453/994 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5908 event pairs, 126 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 1734. Up to 675 conditions per place. [2023-08-29 18:51:48,252 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 35 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2023-08-29 18:51:48,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 68 transitions, 231 flow [2023-08-29 18:51:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:51:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:51:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2023-08-29 18:51:48,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4961111111111111 [2023-08-29 18:51:48,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 893 transitions. [2023-08-29 18:51:48,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 893 transitions. [2023-08-29 18:51:48,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:48,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 893 transitions. [2023-08-29 18:51:48,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 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 18:51:48,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,260 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,260 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 148 flow. Second operand 3 states and 893 transitions. [2023-08-29 18:51:48,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 68 transitions, 231 flow [2023-08-29 18:51:48,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 231 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:51:48,262 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 163 flow [2023-08-29 18:51:48,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2023-08-29 18:51:48,263 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-29 18:51:48,263 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 163 flow [2023-08-29 18:51:48,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 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 18:51:48,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:48,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:48,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:51:48,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 18:51:48,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash 850877374, now seen corresponding path program 1 times [2023-08-29 18:51:48,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:48,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734563644] [2023-08-29 18:51:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:48,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:48,290 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 18:51:48,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:48,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734563644] [2023-08-29 18:51:48,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734563644] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:48,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:48,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:51:48,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850648521] [2023-08-29 18:51:48,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:48,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:51:48,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:48,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:51:48,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:51:48,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 600 [2023-08-29 18:51:48,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 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 18:51:48,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:48,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 600 [2023-08-29 18:51:48,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:48,380 INFO L130 PetriNetUnfolder]: 442/929 cut-off events. [2023-08-29 18:51:48,381 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-29 18:51:48,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 929 events. 442/929 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5511 event pairs, 187 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 1670. Up to 520 conditions per place. [2023-08-29 18:51:48,384 INFO L137 encePairwiseOnDemand]: 593/600 looper letters, 35 selfloop transitions, 6 changer transitions 7/79 dead transitions. [2023-08-29 18:51:48,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 79 transitions, 288 flow [2023-08-29 18:51:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:51:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:51:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2023-08-29 18:51:48,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5027777777777778 [2023-08-29 18:51:48,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2023-08-29 18:51:48,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2023-08-29 18:51:48,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:48,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2023-08-29 18:51:48,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 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 18:51:48,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,392 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 163 flow. Second operand 3 states and 905 transitions. [2023-08-29 18:51:48,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 79 transitions, 288 flow [2023-08-29 18:51:48,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 79 transitions, 288 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:51:48,393 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 173 flow [2023-08-29 18:51:48,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2023-08-29 18:51:48,394 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2023-08-29 18:51:48,394 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 173 flow [2023-08-29 18:51:48,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 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 18:51:48,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:48,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:48,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:51:48,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 18:51:48,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:48,396 INFO L85 PathProgramCache]: Analyzing trace with hash 607281875, now seen corresponding path program 1 times [2023-08-29 18:51:48,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:48,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751287494] [2023-08-29 18:51:48,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:48,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:48,416 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 18:51:48,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:48,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751287494] [2023-08-29 18:51:48,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751287494] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:48,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:48,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:51:48,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847101595] [2023-08-29 18:51:48,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:48,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:51:48,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:48,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:51:48,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:51:48,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-29 18:51:48,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 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 18:51:48,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:48,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-29 18:51:48,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:48,545 INFO L130 PetriNetUnfolder]: 689/1367 cut-off events. [2023-08-29 18:51:48,545 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2023-08-29 18:51:48,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2742 conditions, 1367 events. 689/1367 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8404 event pairs, 142 based on Foata normal form. 0/1088 useless extension candidates. Maximal degree in co-relation 2736. Up to 738 conditions per place. [2023-08-29 18:51:48,550 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 56 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2023-08-29 18:51:48,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 83 transitions, 341 flow [2023-08-29 18:51:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:51:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:51:48,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2023-08-29 18:51:48,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-29 18:51:48,553 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 912 transitions. [2023-08-29 18:51:48,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 912 transitions. [2023-08-29 18:51:48,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:48,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 912 transitions. [2023-08-29 18:51:48,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 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 18:51:48,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,558 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 173 flow. Second operand 3 states and 912 transitions. [2023-08-29 18:51:48,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 83 transitions, 341 flow [2023-08-29 18:51:48,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:51:48,564 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 176 flow [2023-08-29 18:51:48,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-29 18:51:48,566 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2023-08-29 18:51:48,566 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 176 flow [2023-08-29 18:51:48,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 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 18:51:48,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:48,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:48,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:51:48,567 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 18:51:48,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:48,568 INFO L85 PathProgramCache]: Analyzing trace with hash -517457380, now seen corresponding path program 1 times [2023-08-29 18:51:48,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:48,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612978854] [2023-08-29 18:51:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:48,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:48,607 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 18:51:48,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:48,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612978854] [2023-08-29 18:51:48,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612978854] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:48,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:48,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:51:48,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281512984] [2023-08-29 18:51:48,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:48,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:51:48,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:48,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:51:48,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:51:48,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-29 18:51:48,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 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 18:51:48,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:48,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-29 18:51:48,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:48,778 INFO L130 PetriNetUnfolder]: 720/1424 cut-off events. [2023-08-29 18:51:48,778 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2023-08-29 18:51:48,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 1424 events. 720/1424 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8566 event pairs, 158 based on Foata normal form. 0/1134 useless extension candidates. Maximal degree in co-relation 2765. Up to 771 conditions per place. [2023-08-29 18:51:48,782 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 56 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2023-08-29 18:51:48,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 83 transitions, 338 flow [2023-08-29 18:51:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:51:48,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:51:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2023-08-29 18:51:48,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-29 18:51:48,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 912 transitions. [2023-08-29 18:51:48,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 912 transitions. [2023-08-29 18:51:48,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:48,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 912 transitions. [2023-08-29 18:51:48,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 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 18:51:48,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,789 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 176 flow. Second operand 3 states and 912 transitions. [2023-08-29 18:51:48,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 83 transitions, 338 flow [2023-08-29 18:51:48,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:51:48,790 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 191 flow [2023-08-29 18:51:48,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-29 18:51:48,791 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2023-08-29 18:51:48,791 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 191 flow [2023-08-29 18:51:48,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 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 18:51:48,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:48,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:48,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:51:48,792 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 18:51:48,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:48,792 INFO L85 PathProgramCache]: Analyzing trace with hash 940647521, now seen corresponding path program 1 times [2023-08-29 18:51:48,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:48,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457808337] [2023-08-29 18:51:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:48,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:48,813 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 18:51:48,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:48,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457808337] [2023-08-29 18:51:48,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457808337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:48,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:48,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:51:48,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844571445] [2023-08-29 18:51:48,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:48,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:51:48,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:51:48,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:51:48,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 600 [2023-08-29 18:51:48,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 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 18:51:48,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:48,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 600 [2023-08-29 18:51:48,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:48,933 INFO L130 PetriNetUnfolder]: 798/1443 cut-off events. [2023-08-29 18:51:48,933 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-08-29 18:51:48,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2953 conditions, 1443 events. 798/1443 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8220 event pairs, 286 based on Foata normal form. 0/1132 useless extension candidates. Maximal degree in co-relation 2946. Up to 787 conditions per place. [2023-08-29 18:51:48,937 INFO L137 encePairwiseOnDemand]: 596/600 looper letters, 56 selfloop transitions, 2 changer transitions 5/90 dead transitions. [2023-08-29 18:51:48,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 90 transitions, 375 flow [2023-08-29 18:51:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:51:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:51:48,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2023-08-29 18:51:48,939 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2023-08-29 18:51:48,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 924 transitions. [2023-08-29 18:51:48,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 924 transitions. [2023-08-29 18:51:48,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:48,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 924 transitions. [2023-08-29 18:51:48,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 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 18:51:48,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,962 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:48,962 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 191 flow. Second operand 3 states and 924 transitions. [2023-08-29 18:51:48,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 90 transitions, 375 flow [2023-08-29 18:51:48,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:51:48,964 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 201 flow [2023-08-29 18:51:48,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2023-08-29 18:51:48,964 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-29 18:51:48,965 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 201 flow [2023-08-29 18:51:48,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 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 18:51:48,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:48,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:48,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:51:48,965 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 18:51:48,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:48,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2019159844, now seen corresponding path program 1 times [2023-08-29 18:51:48,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:48,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147426707] [2023-08-29 18:51:48,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:48,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:48,982 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 18:51:48,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:48,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147426707] [2023-08-29 18:51:48,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147426707] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:48,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:48,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:51:48,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24398052] [2023-08-29 18:51:48,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:48,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:51:48,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:48,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:51:48,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:51:48,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 600 [2023-08-29 18:51:48,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 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 18:51:48,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:48,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 600 [2023-08-29 18:51:48,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:49,094 INFO L130 PetriNetUnfolder]: 804/1444 cut-off events. [2023-08-29 18:51:49,095 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2023-08-29 18:51:49,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3079 conditions, 1444 events. 804/1444 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8014 event pairs, 296 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 3071. Up to 772 conditions per place. [2023-08-29 18:51:49,097 INFO L137 encePairwiseOnDemand]: 596/600 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2023-08-29 18:51:49,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 90 transitions, 390 flow [2023-08-29 18:51:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:51:49,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:51:49,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2023-08-29 18:51:49,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2023-08-29 18:51:49,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 924 transitions. [2023-08-29 18:51:49,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 924 transitions. [2023-08-29 18:51:49,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:49,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 924 transitions. [2023-08-29 18:51:49,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 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 18:51:49,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:49,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 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 18:51:49,104 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 201 flow. Second operand 3 states and 924 transitions. [2023-08-29 18:51:49,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 90 transitions, 390 flow [2023-08-29 18:51:49,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 90 transitions, 390 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:51:49,105 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2023-08-29 18:51:49,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2023-08-29 18:51:49,106 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-29 18:51:49,106 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2023-08-29 18:51:49,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 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 18:51:49,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (51 of 52 remaining) [2023-08-29 18:51:49,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2023-08-29 18:51:49,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2023-08-29 18:51:49,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2023-08-29 18:51:49,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2023-08-29 18:51:49,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2023-08-29 18:51:49,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (45 of 52 remaining) [2023-08-29 18:51:49,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2023-08-29 18:51:49,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2023-08-29 18:51:49,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2023-08-29 18:51:49,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2023-08-29 18:51:49,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2023-08-29 18:51:49,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2023-08-29 18:51:49,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2023-08-29 18:51:49,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2023-08-29 18:51:49,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2023-08-29 18:51:49,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2023-08-29 18:51:49,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2023-08-29 18:51:49,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2023-08-29 18:51:49,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2023-08-29 18:51:49,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2023-08-29 18:51:49,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2023-08-29 18:51:49,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2023-08-29 18:51:49,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2023-08-29 18:51:49,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2023-08-29 18:51:49,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2023-08-29 18:51:49,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2023-08-29 18:51:49,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2023-08-29 18:51:49,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2023-08-29 18:51:49,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2023-08-29 18:51:49,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2023-08-29 18:51:49,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2023-08-29 18:51:49,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 52 remaining) [2023-08-29 18:51:49,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 52 remaining) [2023-08-29 18:51:49,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2023-08-29 18:51:49,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2023-08-29 18:51:49,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2023-08-29 18:51:49,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2023-08-29 18:51:49,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2023-08-29 18:51:49,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2023-08-29 18:51:49,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2023-08-29 18:51:49,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2023-08-29 18:51:49,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2023-08-29 18:51:49,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2023-08-29 18:51:49,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2023-08-29 18:51:49,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2023-08-29 18:51:49,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2023-08-29 18:51:49,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2023-08-29 18:51:49,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2023-08-29 18:51:49,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2023-08-29 18:51:49,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2023-08-29 18:51:49,116 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2023-08-29 18:51:49,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:51:49,117 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:49,120 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:51:49,120 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:51:49,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:51:49 BasicIcfg [2023-08-29 18:51:49,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:51:49,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:51:49,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:51:49,123 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:51:49,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:51:42" (3/4) ... [2023-08-29 18:51:49,124 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:51:49,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 18:51:49,128 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 18:51:49,131 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-29 18:51:49,131 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:51:49,131 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:51:49,131 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:51:49,154 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:51:49,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:51:49,154 INFO L158 Benchmark]: Toolchain (without parser) took 7361.59ms. Allocated memory was 75.5MB in the beginning and 188.7MB in the end (delta: 113.2MB). Free memory was 39.3MB in the beginning and 65.0MB in the end (delta: -25.7MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2023-08-29 18:51:49,154 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 50.3MB. Free memory was 27.9MB in the beginning and 27.8MB in the end (delta: 50.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:51:49,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.26ms. Allocated memory is still 75.5MB. Free memory was 38.9MB in the beginning and 47.2MB in the end (delta: -8.2MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2023-08-29 18:51:49,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.53ms. Allocated memory is still 75.5MB. Free memory was 47.2MB in the beginning and 44.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:51:49,155 INFO L158 Benchmark]: Boogie Preprocessor took 39.62ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 43.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:51:49,155 INFO L158 Benchmark]: RCFGBuilder took 517.88ms. Allocated memory is still 75.5MB. Free memory was 43.0MB in the beginning and 40.7MB in the end (delta: 2.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-08-29 18:51:49,156 INFO L158 Benchmark]: TraceAbstraction took 6562.94ms. Allocated memory was 75.5MB in the beginning and 188.7MB in the end (delta: 113.2MB). Free memory was 40.1MB in the beginning and 68.1MB in the end (delta: -28.0MB). Peak memory consumption was 86.1MB. Max. memory is 16.1GB. [2023-08-29 18:51:49,156 INFO L158 Benchmark]: Witness Printer took 31.52ms. Allocated memory is still 188.7MB. Free memory was 68.1MB in the beginning and 65.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:51:49,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 50.3MB. Free memory was 27.9MB in the beginning and 27.8MB in the end (delta: 50.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.26ms. Allocated memory is still 75.5MB. Free memory was 38.9MB in the beginning and 47.2MB in the end (delta: -8.2MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.53ms. Allocated memory is still 75.5MB. Free memory was 47.2MB in the beginning and 44.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.62ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 43.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 517.88ms. Allocated memory is still 75.5MB. Free memory was 43.0MB in the beginning and 40.7MB in the end (delta: 2.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6562.94ms. Allocated memory was 75.5MB in the beginning and 188.7MB in the end (delta: 113.2MB). Free memory was 40.1MB in the beginning and 68.1MB in the end (delta: -28.0MB). Peak memory consumption was 86.1MB. Max. memory is 16.1GB. * Witness Printer took 31.52ms. Allocated memory is still 188.7MB. Free memory was 68.1MB in the beginning and 65.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 277 PlacesBefore, 80 PlacesAfterwards, 286 TransitionsBefore, 81 TransitionsAfterwards, 15476 CoEnabledTransitionPairs, 8 FixpointIterations, 132 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 34 ConcurrentYvCompositions, 8 ChoiceCompositions, 294 TotalNumberOfCompositions, 54733 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29437, independent: 28507, independent conditional: 0, independent unconditional: 28507, dependent: 930, dependent conditional: 0, dependent unconditional: 930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9187, independent: 9101, independent conditional: 0, independent unconditional: 9101, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 29437, independent: 19406, independent conditional: 0, independent unconditional: 19406, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 9187, unknown conditional: 0, unknown unconditional: 9187] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 809, Positive conditional cache size: 0, Positive unconditional cache size: 809, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: 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: 50]: 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: 50]: 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: 50]: 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: 50]: 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: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: 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, 427 locations, 52 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: 6.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 567 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 24 mSDtfsCounter, 567 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=7, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:51:49,173 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