./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-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 e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:27:53,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:27:53,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:27:53,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:27:53,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:27:53,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:27:53,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:27:53,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:27:53,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:27:53,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:27:53,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:27:53,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:27:53,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:27:53,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:27:53,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:27:53,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:27:53,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:27:53,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:27:53,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:27:53,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:27:53,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:27:53,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:27:53,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:27:53,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:27:53,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:27:53,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:27:53,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:27:53,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:27:53,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:27:53,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:27:53,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:27:53,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:27:53,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:27:53,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:27:53,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:27:53,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:27:53,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:27:53,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:27:53,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:27:53,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:27:53,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:27:53,954 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:27:53,981 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:27:53,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:27:53,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:27:53,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:27:53,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:27:53,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:27:53,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:27:53,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:27:53,984 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:27:53,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:27:53,985 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:27:53,985 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:27:53,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:27:53,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:27:53,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:27:53,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:27:53,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:27:53,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:27:53,986 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:27:53,986 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:27:53,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:27:53,986 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:27:53,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:27:53,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:27:53,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:27:53,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:27:53,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:27:53,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:27:53,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:27:53,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:27:53,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:27:53,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:27:53,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:27:53,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:27:53,988 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:27:53,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:27:53,988 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:27:53,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9065224c0b163ad014fc0aee4009feab43ed37ef70e06d8d8f3b14d045f755a Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:27:54,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:27:54,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:27:54,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:27:54,293 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:27:54,293 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:27:54,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2023-08-31 21:27:55,340 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:27:55,481 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:27:55,481 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2023-08-31 21:27:55,486 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c9d6356/6236e49e8d9745d697f6631a54ae6058/FLAG69cfcd697 [2023-08-31 21:27:55,504 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c9d6356/6236e49e8d9745d697f6631a54ae6058 [2023-08-31 21:27:55,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:27:55,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:27:55,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:27:55,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:27:55,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:27:55,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7493ac18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55, skipping insertion in model container [2023-08-31 21:27:55,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:27:55,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:27:55,710 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2023-08-31 21:27:55,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:27:55,720 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:27:55,740 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2023-08-31 21:27:55,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:27:55,752 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:27:55,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55 WrapperNode [2023-08-31 21:27:55,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:27:55,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:27:55,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:27:55,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:27:55,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,790 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 294 [2023-08-31 21:27:55,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:27:55,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:27:55,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:27:55,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:27:55,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,832 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:27:55,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:27:55,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:27:55,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:27:55,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (1/1) ... [2023-08-31 21:27:55,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:27:55,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:27:55,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:27:55,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:27:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:27:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:27:55,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:27:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:27:55,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:27:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:27:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:27:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:27:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:27:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:27:55,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:27:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:27:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:27:55,939 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:27:56,044 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:27:56,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:27:56,429 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:27:56,436 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:27:56,437 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-31 21:27:56,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:27:56 BoogieIcfgContainer [2023-08-31 21:27:56,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:27:56,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:27:56,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:27:56,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:27:56,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:27:55" (1/3) ... [2023-08-31 21:27:56,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4620a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:27:56, skipping insertion in model container [2023-08-31 21:27:56,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:27:55" (2/3) ... [2023-08-31 21:27:56,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4620a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:27:56, skipping insertion in model container [2023-08-31 21:27:56,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:27:56" (3/3) ... [2023-08-31 21:27:56,444 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2023-08-31 21:27:56,450 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:27:56,456 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:27:56,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-31 21:27:56,457 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:27:56,589 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:27:56,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 333 places, 345 transitions, 706 flow [2023-08-31 21:27:56,723 INFO L130 PetriNetUnfolder]: 19/343 cut-off events. [2023-08-31 21:27:56,723 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:27:56,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 343 events. 19/343 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 662 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2023-08-31 21:27:56,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 333 places, 345 transitions, 706 flow [2023-08-31 21:27:56,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 317 places, 328 transitions, 668 flow [2023-08-31 21:27:56,747 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:27:56,753 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 317 places, 328 transitions, 668 flow [2023-08-31 21:27:56,755 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 317 places, 328 transitions, 668 flow [2023-08-31 21:27:56,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 328 transitions, 668 flow [2023-08-31 21:27:56,809 INFO L130 PetriNetUnfolder]: 18/328 cut-off events. [2023-08-31 21:27:56,809 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:27:56,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 328 events. 18/328 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 657 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2023-08-31 21:27:56,817 INFO L119 LiptonReduction]: Number of co-enabled transitions 18468 [2023-08-31 21:28:01,373 INFO L134 LiptonReduction]: Checked pairs total: 120361 [2023-08-31 21:28:01,373 INFO L136 LiptonReduction]: Total number of compositions: 263 [2023-08-31 21:28:01,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:28:01,398 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;@40e8c1f8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:28:01,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-08-31 21:28:01,400 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-31 21:28:01,400 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:28:01,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:01,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-31 21:28:01,401 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:01,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:01,405 INFO L85 PathProgramCache]: Analyzing trace with hash 39268, now seen corresponding path program 1 times [2023-08-31 21:28:01,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:01,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216225443] [2023-08-31 21:28:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:01,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:28:01,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:01,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216225443] [2023-08-31 21:28:01,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216225443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:01,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:01,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-31 21:28:01,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396563369] [2023-08-31 21:28:01,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:01,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:28:01,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:01,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:28:01,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:28:01,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 608 [2023-08-31 21:28:01,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 330.0) internal successors, (660), 2 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:01,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:01,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 608 [2023-08-31 21:28:01,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:01,697 INFO L130 PetriNetUnfolder]: 350/1278 cut-off events. [2023-08-31 21:28:01,698 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-31 21:28:01,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1854 conditions, 1278 events. 350/1278 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8810 event pairs, 228 based on Foata normal form. 41/1069 useless extension candidates. Maximal degree in co-relation 1639. Up to 545 conditions per place. [2023-08-31 21:28:01,705 INFO L137 encePairwiseOnDemand]: 595/608 looper letters, 33 selfloop transitions, 0 changer transitions 1/118 dead transitions. [2023-08-31 21:28:01,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 118 transitions, 316 flow [2023-08-31 21:28:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:28:01,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:28:01,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 705 transitions. [2023-08-31 21:28:01,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5797697368421053 [2023-08-31 21:28:01,722 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 705 transitions. [2023-08-31 21:28:01,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 705 transitions. [2023-08-31 21:28:01,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:01,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 705 transitions. [2023-08-31 21:28:01,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 352.5) internal successors, (705), 2 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:01,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 608.0) internal successors, (1824), 3 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:01,736 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 608.0) internal successors, (1824), 3 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:01,737 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 274 flow. Second operand 2 states and 705 transitions. [2023-08-31 21:28:01,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 118 transitions, 316 flow [2023-08-31 21:28:01,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 118 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:28:01,743 INFO L231 Difference]: Finished difference. Result has 114 places, 117 transitions, 237 flow [2023-08-31 21:28:01,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=237, PETRI_PLACES=114, PETRI_TRANSITIONS=117} [2023-08-31 21:28:01,746 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -13 predicate places. [2023-08-31 21:28:01,747 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 117 transitions, 237 flow [2023-08-31 21:28:01,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 330.0) internal successors, (660), 2 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:01,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:01,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:28:01,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:28:01,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:01,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:01,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1962914384, now seen corresponding path program 1 times [2023-08-31 21:28:01,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:01,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880459830] [2023-08-31 21:28:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:01,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:28:01,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:01,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880459830] [2023-08-31 21:28:01,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880459830] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:01,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:01,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:28:01,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979248624] [2023-08-31 21:28:01,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:01,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:28:01,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:01,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:28:01,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:28:01,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 608 [2023-08-31 21:28:01,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 117 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:01,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:01,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 608 [2023-08-31 21:28:01,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:02,081 INFO L130 PetriNetUnfolder]: 350/1279 cut-off events. [2023-08-31 21:28:02,081 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-31 21:28:02,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1835 conditions, 1279 events. 350/1279 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8827 event pairs, 228 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 1832. Up to 544 conditions per place. [2023-08-31 21:28:02,086 INFO L137 encePairwiseOnDemand]: 603/608 looper letters, 31 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2023-08-31 21:28:02,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 119 transitions, 311 flow [2023-08-31 21:28:02,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:28:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:28:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1000 transitions. [2023-08-31 21:28:02,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5482456140350878 [2023-08-31 21:28:02,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1000 transitions. [2023-08-31 21:28:02,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1000 transitions. [2023-08-31 21:28:02,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:02,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1000 transitions. [2023-08-31 21:28:02,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,095 INFO L175 Difference]: Start difference. First operand has 114 places, 117 transitions, 237 flow. Second operand 3 states and 1000 transitions. [2023-08-31 21:28:02,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 119 transitions, 311 flow [2023-08-31 21:28:02,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 119 transitions, 311 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:28:02,097 INFO L231 Difference]: Finished difference. Result has 116 places, 119 transitions, 259 flow [2023-08-31 21:28:02,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=116, PETRI_TRANSITIONS=119} [2023-08-31 21:28:02,098 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -11 predicate places. [2023-08-31 21:28:02,098 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 119 transitions, 259 flow [2023-08-31 21:28:02,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:02,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:02,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:28:02,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:02,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:02,100 INFO L85 PathProgramCache]: Analyzing trace with hash 829662156, now seen corresponding path program 1 times [2023-08-31 21:28:02,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:02,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008774993] [2023-08-31 21:28:02,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:02,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:02,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:28:02,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:02,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008774993] [2023-08-31 21:28:02,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008774993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:02,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:02,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:28:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640462354] [2023-08-31 21:28:02,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:02,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:28:02,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:28:02,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:28:02,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 608 [2023-08-31 21:28:02,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 119 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:02,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 608 [2023-08-31 21:28:02,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:02,257 INFO L130 PetriNetUnfolder]: 380/1404 cut-off events. [2023-08-31 21:28:02,257 INFO L131 PetriNetUnfolder]: For 11/27 co-relation queries the response was YES. [2023-08-31 21:28:02,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 1404 events. 380/1404 cut-off events. For 11/27 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 9788 event pairs, 110 based on Foata normal form. 2/1148 useless extension candidates. Maximal degree in co-relation 2014. Up to 576 conditions per place. [2023-08-31 21:28:02,262 INFO L137 encePairwiseOnDemand]: 604/608 looper letters, 41 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2023-08-31 21:28:02,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 124 transitions, 356 flow [2023-08-31 21:28:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:28:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:28:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2023-08-31 21:28:02,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5531798245614035 [2023-08-31 21:28:02,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1009 transitions. [2023-08-31 21:28:02,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1009 transitions. [2023-08-31 21:28:02,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:02,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1009 transitions. [2023-08-31 21:28:02,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,270 INFO L175 Difference]: Start difference. First operand has 116 places, 119 transitions, 259 flow. Second operand 3 states and 1009 transitions. [2023-08-31 21:28:02,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 124 transitions, 356 flow [2023-08-31 21:28:02,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 124 transitions, 352 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:28:02,272 INFO L231 Difference]: Finished difference. Result has 116 places, 119 transitions, 265 flow [2023-08-31 21:28:02,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=116, PETRI_TRANSITIONS=119} [2023-08-31 21:28:02,273 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -11 predicate places. [2023-08-31 21:28:02,273 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 119 transitions, 265 flow [2023-08-31 21:28:02,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.6666666666667) internal successors, (974), 3 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:02,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:02,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:28:02,274 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:02,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:02,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1557113214, now seen corresponding path program 1 times [2023-08-31 21:28:02,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:02,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043448693] [2023-08-31 21:28:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:28:02,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:02,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043448693] [2023-08-31 21:28:02,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043448693] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:02,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:02,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:28:02,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714951825] [2023-08-31 21:28:02,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:02,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:28:02,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:02,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:28:02,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:28:02,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 608 [2023-08-31 21:28:02,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 119 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:02,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 608 [2023-08-31 21:28:02,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:02,479 INFO L130 PetriNetUnfolder]: 438/1831 cut-off events. [2023-08-31 21:28:02,480 INFO L131 PetriNetUnfolder]: For 30/75 co-relation queries the response was YES. [2023-08-31 21:28:02,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2585 conditions, 1831 events. 438/1831 cut-off events. For 30/75 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 13190 event pairs, 132 based on Foata normal form. 1/1462 useless extension candidates. Maximal degree in co-relation 2580. Up to 660 conditions per place. [2023-08-31 21:28:02,487 INFO L137 encePairwiseOnDemand]: 604/608 looper letters, 43 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2023-08-31 21:28:02,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 124 transitions, 369 flow [2023-08-31 21:28:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:28:02,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:28:02,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2023-08-31 21:28:02,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5537280701754386 [2023-08-31 21:28:02,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2023-08-31 21:28:02,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2023-08-31 21:28:02,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:02,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2023-08-31 21:28:02,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,500 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,500 INFO L175 Difference]: Start difference. First operand has 116 places, 119 transitions, 265 flow. Second operand 3 states and 1010 transitions. [2023-08-31 21:28:02,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 124 transitions, 369 flow [2023-08-31 21:28:02,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 124 transitions, 369 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:28:02,502 INFO L231 Difference]: Finished difference. Result has 117 places, 119 transitions, 275 flow [2023-08-31 21:28:02,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=117, PETRI_TRANSITIONS=119} [2023-08-31 21:28:02,504 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -10 predicate places. [2023-08-31 21:28:02,504 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 119 transitions, 275 flow [2023-08-31 21:28:02,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:02,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:02,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:28:02,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:02,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:02,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1513606697, now seen corresponding path program 1 times [2023-08-31 21:28:02,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:02,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733813894] [2023-08-31 21:28:02,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:02,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:28:02,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:02,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733813894] [2023-08-31 21:28:02,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733813894] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:02,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:02,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:28:02,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519064691] [2023-08-31 21:28:02,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:02,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:28:02,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:02,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:28:02,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:28:02,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 608 [2023-08-31 21:28:02,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 119 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:02,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 608 [2023-08-31 21:28:02,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:02,772 INFO L130 PetriNetUnfolder]: 647/2344 cut-off events. [2023-08-31 21:28:02,772 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2023-08-31 21:28:02,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3510 conditions, 2344 events. 647/2344 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 17447 event pairs, 123 based on Foata normal form. 0/2000 useless extension candidates. Maximal degree in co-relation 3504. Up to 866 conditions per place. [2023-08-31 21:28:02,779 INFO L137 encePairwiseOnDemand]: 602/608 looper letters, 55 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-08-31 21:28:02,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 130 transitions, 417 flow [2023-08-31 21:28:02,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:28:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:28:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1005 transitions. [2023-08-31 21:28:02,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5509868421052632 [2023-08-31 21:28:02,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1005 transitions. [2023-08-31 21:28:02,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1005 transitions. [2023-08-31 21:28:02,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:02,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1005 transitions. [2023-08-31 21:28:02,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,787 INFO L175 Difference]: Start difference. First operand has 117 places, 119 transitions, 275 flow. Second operand 3 states and 1005 transitions. [2023-08-31 21:28:02,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 130 transitions, 417 flow [2023-08-31 21:28:02,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 130 transitions, 417 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:28:02,789 INFO L231 Difference]: Finished difference. Result has 116 places, 117 transitions, 281 flow [2023-08-31 21:28:02,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=116, PETRI_TRANSITIONS=117} [2023-08-31 21:28:02,790 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -11 predicate places. [2023-08-31 21:28:02,790 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 117 transitions, 281 flow [2023-08-31 21:28:02,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:02,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:02,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:02,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:28:02,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:02,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:02,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1968153415, now seen corresponding path program 1 times [2023-08-31 21:28:02,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:02,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520725368] [2023-08-31 21:28:02,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:02,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:28:02,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:02,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520725368] [2023-08-31 21:28:02,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520725368] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:28:02,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136779565] [2023-08-31 21:28:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:02,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:28:02,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:28:02,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:28:02,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 21:28:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:02,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-31 21:28:02,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:28:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:28:02,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:28:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:28:03,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136779565] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:28:03,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:28:03,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-31 21:28:03,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182233049] [2023-08-31 21:28:03,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:28:03,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 21:28:03,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:03,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 21:28:03,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-31 21:28:03,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 608 [2023-08-31 21:28:03,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 117 transitions, 281 flow. Second operand has 8 states, 8 states have (on average 318.875) internal successors, (2551), 8 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:03,137 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:03,137 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 608 [2023-08-31 21:28:03,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:03,332 INFO L130 PetriNetUnfolder]: 467/1575 cut-off events. [2023-08-31 21:28:03,332 INFO L131 PetriNetUnfolder]: For 130/153 co-relation queries the response was YES. [2023-08-31 21:28:03,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2557 conditions, 1575 events. 467/1575 cut-off events. For 130/153 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11034 event pairs, 240 based on Foata normal form. 0/1299 useless extension candidates. Maximal degree in co-relation 2550. Up to 724 conditions per place. [2023-08-31 21:28:03,340 INFO L137 encePairwiseOnDemand]: 603/608 looper letters, 34 selfloop transitions, 10 changer transitions 0/123 dead transitions. [2023-08-31 21:28:03,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 123 transitions, 393 flow [2023-08-31 21:28:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:28:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:28:03,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1949 transitions. [2023-08-31 21:28:03,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.534265350877193 [2023-08-31 21:28:03,343 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1949 transitions. [2023-08-31 21:28:03,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1949 transitions. [2023-08-31 21:28:03,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:03,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1949 transitions. [2023-08-31 21:28:03,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 324.8333333333333) internal successors, (1949), 6 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:03,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:03,352 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:03,352 INFO L175 Difference]: Start difference. First operand has 116 places, 117 transitions, 281 flow. Second operand 6 states and 1949 transitions. [2023-08-31 21:28:03,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 123 transitions, 393 flow [2023-08-31 21:28:03,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 123 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:28:03,354 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 347 flow [2023-08-31 21:28:03,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2023-08-31 21:28:03,355 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2023-08-31 21:28:03,355 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 347 flow [2023-08-31 21:28:03,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 318.875) internal successors, (2551), 8 states have internal predecessors, (2551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:03,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:03,356 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:03,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-31 21:28:03,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-31 21:28:03,562 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:03,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:03,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1185110845, now seen corresponding path program 2 times [2023-08-31 21:28:03,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:03,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206163987] [2023-08-31 21:28:03,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:03,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:03,703 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 21:28:03,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:03,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206163987] [2023-08-31 21:28:03,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206163987] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:28:03,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874783550] [2023-08-31 21:28:03,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 21:28:03,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:28:03,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:28:03,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:28:03,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 21:28:03,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 21:28:03,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 21:28:03,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-31 21:28:03,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:28:03,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 21:28:03,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 21:28:03,916 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 21:28:03,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 21:28:03,943 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 21:28:03,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 21:28:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-31 21:28:03,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 21:28:03,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874783550] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:03,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 21:28:03,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-31 21:28:03,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281344562] [2023-08-31 21:28:03,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:03,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 21:28:03,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:03,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 21:28:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-31 21:28:04,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 608 [2023-08-31 21:28:04,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 347 flow. Second operand has 7 states, 7 states have (on average 313.85714285714283) internal successors, (2197), 7 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:04,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:04,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 608 [2023-08-31 21:28:04,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:04,757 INFO L130 PetriNetUnfolder]: 1672/3749 cut-off events. [2023-08-31 21:28:04,758 INFO L131 PetriNetUnfolder]: For 368/368 co-relation queries the response was YES. [2023-08-31 21:28:04,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6792 conditions, 3749 events. 1672/3749 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 27125 event pairs, 78 based on Foata normal form. 0/3138 useless extension candidates. Maximal degree in co-relation 6781. Up to 949 conditions per place. [2023-08-31 21:28:04,770 INFO L137 encePairwiseOnDemand]: 602/608 looper letters, 143 selfloop transitions, 5 changer transitions 0/222 dead transitions. [2023-08-31 21:28:04,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 222 transitions, 901 flow [2023-08-31 21:28:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:28:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:28:04,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2310 transitions. [2023-08-31 21:28:04,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427631578947368 [2023-08-31 21:28:04,775 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2310 transitions. [2023-08-31 21:28:04,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2310 transitions. [2023-08-31 21:28:04,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:04,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2310 transitions. [2023-08-31 21:28:04,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 330.0) internal successors, (2310), 7 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:04,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 608.0) internal successors, (4864), 8 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:04,784 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 608.0) internal successors, (4864), 8 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:04,784 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 347 flow. Second operand 7 states and 2310 transitions. [2023-08-31 21:28:04,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 222 transitions, 901 flow [2023-08-31 21:28:04,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 222 transitions, 885 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-31 21:28:04,787 INFO L231 Difference]: Finished difference. Result has 128 places, 122 transitions, 339 flow [2023-08-31 21:28:04,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=339, PETRI_PLACES=128, PETRI_TRANSITIONS=122} [2023-08-31 21:28:04,788 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 1 predicate places. [2023-08-31 21:28:04,788 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 122 transitions, 339 flow [2023-08-31 21:28:04,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 313.85714285714283) internal successors, (2197), 7 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:04,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:04,790 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:04,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 21:28:04,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-31 21:28:04,995 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:04,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:04,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1652931622, now seen corresponding path program 1 times [2023-08-31 21:28:04,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:04,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709847321] [2023-08-31 21:28:04,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:04,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-31 21:28:05,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:05,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709847321] [2023-08-31 21:28:05,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709847321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:05,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:05,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:28:05,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854201340] [2023-08-31 21:28:05,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:05,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:28:05,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:05,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:28:05,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:28:05,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 608 [2023-08-31 21:28:05,062 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 122 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:05,062 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:05,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 608 [2023-08-31 21:28:05,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:05,291 INFO L130 PetriNetUnfolder]: 836/2563 cut-off events. [2023-08-31 21:28:05,291 INFO L131 PetriNetUnfolder]: For 369/369 co-relation queries the response was YES. [2023-08-31 21:28:05,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4440 conditions, 2563 events. 836/2563 cut-off events. For 369/369 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 18452 event pairs, 178 based on Foata normal form. 0/2277 useless extension candidates. Maximal degree in co-relation 4428. Up to 1160 conditions per place. [2023-08-31 21:28:05,306 INFO L137 encePairwiseOnDemand]: 602/608 looper letters, 65 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2023-08-31 21:28:05,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 506 flow [2023-08-31 21:28:05,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:28:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:28:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1008 transitions. [2023-08-31 21:28:05,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2023-08-31 21:28:05,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1008 transitions. [2023-08-31 21:28:05,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1008 transitions. [2023-08-31 21:28:05,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:05,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1008 transitions. [2023-08-31 21:28:05,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:05,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:05,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:05,313 INFO L175 Difference]: Start difference. First operand has 128 places, 122 transitions, 339 flow. Second operand 3 states and 1008 transitions. [2023-08-31 21:28:05,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 506 flow [2023-08-31 21:28:05,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 133 transitions, 495 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:28:05,317 INFO L231 Difference]: Finished difference. Result has 122 places, 120 transitions, 336 flow [2023-08-31 21:28:05,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=122, PETRI_TRANSITIONS=120} [2023-08-31 21:28:05,317 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2023-08-31 21:28:05,317 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 120 transitions, 336 flow [2023-08-31 21:28:05,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:05,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:05,318 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:05,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:28:05,318 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:05,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:05,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1111089327, now seen corresponding path program 1 times [2023-08-31 21:28:05,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:05,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078154557] [2023-08-31 21:28:05,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:05,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 21:28:05,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:05,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078154557] [2023-08-31 21:28:05,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078154557] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 21:28:05,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536488465] [2023-08-31 21:28:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:05,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:28:05,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:28:05,428 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 21:28:05,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-31 21:28:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:05,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-31 21:28:05,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 21:28:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 21:28:05,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 21:28:05,683 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 21:28:05,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536488465] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 21:28:05,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 21:28:05,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-31 21:28:05,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193012583] [2023-08-31 21:28:05,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 21:28:05,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 21:28:05,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:05,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 21:28:05,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-08-31 21:28:05,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 608 [2023-08-31 21:28:05,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 120 transitions, 336 flow. Second operand has 13 states, 13 states have (on average 318.53846153846155) internal successors, (4141), 13 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:05,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:05,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 608 [2023-08-31 21:28:05,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:06,062 INFO L130 PetriNetUnfolder]: 507/1691 cut-off events. [2023-08-31 21:28:06,062 INFO L131 PetriNetUnfolder]: For 138/161 co-relation queries the response was YES. [2023-08-31 21:28:06,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2819 conditions, 1691 events. 507/1691 cut-off events. For 138/161 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 11929 event pairs, 250 based on Foata normal form. 1/1443 useless extension candidates. Maximal degree in co-relation 2807. Up to 770 conditions per place. [2023-08-31 21:28:06,070 INFO L137 encePairwiseOnDemand]: 603/608 looper letters, 34 selfloop transitions, 12 changer transitions 0/122 dead transitions. [2023-08-31 21:28:06,070 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 122 transitions, 440 flow [2023-08-31 21:28:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:28:06,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:28:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2264 transitions. [2023-08-31 21:28:06,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5319548872180451 [2023-08-31 21:28:06,075 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2264 transitions. [2023-08-31 21:28:06,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2264 transitions. [2023-08-31 21:28:06,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:06,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2264 transitions. [2023-08-31 21:28:06,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 323.42857142857144) internal successors, (2264), 7 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:06,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 608.0) internal successors, (4864), 8 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:06,084 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 608.0) internal successors, (4864), 8 states have internal predecessors, (4864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:06,084 INFO L175 Difference]: Start difference. First operand has 122 places, 120 transitions, 336 flow. Second operand 7 states and 2264 transitions. [2023-08-31 21:28:06,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 122 transitions, 440 flow [2023-08-31 21:28:06,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 122 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:28:06,087 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 382 flow [2023-08-31 21:28:06,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=382, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2023-08-31 21:28:06,088 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 2 predicate places. [2023-08-31 21:28:06,088 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 382 flow [2023-08-31 21:28:06,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 318.53846153846155) internal successors, (4141), 13 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:06,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:06,089 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:06,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-31 21:28:06,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 21:28:06,307 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:06,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:06,308 INFO L85 PathProgramCache]: Analyzing trace with hash -2053023795, now seen corresponding path program 2 times [2023-08-31 21:28:06,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:06,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903795705] [2023-08-31 21:28:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:06,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:28:06,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:06,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903795705] [2023-08-31 21:28:06,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903795705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:06,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:06,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:28:06,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780606252] [2023-08-31 21:28:06,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:06,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:28:06,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:06,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:28:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:28:06,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 608 [2023-08-31 21:28:06,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:06,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:06,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 608 [2023-08-31 21:28:06,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:07,299 INFO L130 PetriNetUnfolder]: 1006/2787 cut-off events. [2023-08-31 21:28:07,300 INFO L131 PetriNetUnfolder]: For 171/171 co-relation queries the response was YES. [2023-08-31 21:28:07,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4868 conditions, 2787 events. 1006/2787 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 20313 event pairs, 185 based on Foata normal form. 0/2501 useless extension candidates. Maximal degree in co-relation 4854. Up to 784 conditions per place. [2023-08-31 21:28:07,309 INFO L137 encePairwiseOnDemand]: 601/608 looper letters, 117 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2023-08-31 21:28:07,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 186 transitions, 767 flow [2023-08-31 21:28:07,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:28:07,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:28:07,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1941 transitions. [2023-08-31 21:28:07,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5320723684210527 [2023-08-31 21:28:07,313 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1941 transitions. [2023-08-31 21:28:07,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1941 transitions. [2023-08-31 21:28:07,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:07,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1941 transitions. [2023-08-31 21:28:07,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.5) internal successors, (1941), 6 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:07,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:07,320 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:07,320 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 382 flow. Second operand 6 states and 1941 transitions. [2023-08-31 21:28:07,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 186 transitions, 767 flow [2023-08-31 21:28:07,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 186 transitions, 743 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-31 21:28:07,323 INFO L231 Difference]: Finished difference. Result has 128 places, 120 transitions, 364 flow [2023-08-31 21:28:07,324 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=128, PETRI_TRANSITIONS=120} [2023-08-31 21:28:07,325 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 1 predicate places. [2023-08-31 21:28:07,325 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 120 transitions, 364 flow [2023-08-31 21:28:07,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:07,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:07,326 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:07,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:28:07,326 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:07,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:07,327 INFO L85 PathProgramCache]: Analyzing trace with hash -219873082, now seen corresponding path program 1 times [2023-08-31 21:28:07,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:07,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554720564] [2023-08-31 21:28:07,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:07,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:07,630 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:28:07,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:07,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554720564] [2023-08-31 21:28:07,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554720564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:07,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:07,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:28:07,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826307467] [2023-08-31 21:28:07,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:07,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:28:07,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:07,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:28:07,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:28:07,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 608 [2023-08-31 21:28:07,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 120 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 307.6666666666667) internal successors, (1846), 6 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:07,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:07,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 608 [2023-08-31 21:28:07,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:08,273 INFO L130 PetriNetUnfolder]: 879/2205 cut-off events. [2023-08-31 21:28:08,273 INFO L131 PetriNetUnfolder]: For 282/333 co-relation queries the response was YES. [2023-08-31 21:28:08,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4170 conditions, 2205 events. 879/2205 cut-off events. For 282/333 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 14846 event pairs, 155 based on Foata normal form. 0/2029 useless extension candidates. Maximal degree in co-relation 4155. Up to 714 conditions per place. [2023-08-31 21:28:08,281 INFO L137 encePairwiseOnDemand]: 601/608 looper letters, 101 selfloop transitions, 5 changer transitions 0/170 dead transitions. [2023-08-31 21:28:08,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 170 transitions, 716 flow [2023-08-31 21:28:08,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:28:08,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:28:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1921 transitions. [2023-08-31 21:28:08,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5265899122807017 [2023-08-31 21:28:08,285 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1921 transitions. [2023-08-31 21:28:08,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1921 transitions. [2023-08-31 21:28:08,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:08,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1921 transitions. [2023-08-31 21:28:08,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 320.1666666666667) internal successors, (1921), 6 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:08,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:08,293 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:08,293 INFO L175 Difference]: Start difference. First operand has 128 places, 120 transitions, 364 flow. Second operand 6 states and 1921 transitions. [2023-08-31 21:28:08,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 170 transitions, 716 flow [2023-08-31 21:28:08,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 170 transitions, 698 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:28:08,296 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 360 flow [2023-08-31 21:28:08,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2023-08-31 21:28:08,296 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -1 predicate places. [2023-08-31 21:28:08,296 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 360 flow [2023-08-31 21:28:08,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.6666666666667) internal successors, (1846), 6 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:08,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:08,297 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:08,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:28:08,297 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:08,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash 884160698, now seen corresponding path program 1 times [2023-08-31 21:28:08,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:08,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581920056] [2023-08-31 21:28:08,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:08,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:08,610 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:28:08,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:08,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581920056] [2023-08-31 21:28:08,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581920056] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:08,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:08,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:28:08,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836790123] [2023-08-31 21:28:08,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:08,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:28:08,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:08,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:28:08,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:28:08,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 608 [2023-08-31 21:28:08,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:08,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:08,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 608 [2023-08-31 21:28:08,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:09,175 INFO L130 PetriNetUnfolder]: 595/1732 cut-off events. [2023-08-31 21:28:09,175 INFO L131 PetriNetUnfolder]: For 196/230 co-relation queries the response was YES. [2023-08-31 21:28:09,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3188 conditions, 1732 events. 595/1732 cut-off events. For 196/230 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 11904 event pairs, 253 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 3173. Up to 771 conditions per place. [2023-08-31 21:28:09,182 INFO L137 encePairwiseOnDemand]: 603/608 looper letters, 90 selfloop transitions, 4 changer transitions 8/169 dead transitions. [2023-08-31 21:28:09,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 169 transitions, 690 flow [2023-08-31 21:28:09,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:28:09,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:28:09,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1962 transitions. [2023-08-31 21:28:09,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.537828947368421 [2023-08-31 21:28:09,186 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1962 transitions. [2023-08-31 21:28:09,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1962 transitions. [2023-08-31 21:28:09,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:09,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1962 transitions. [2023-08-31 21:28:09,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.0) internal successors, (1962), 6 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:09,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:09,193 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:09,193 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 360 flow. Second operand 6 states and 1962 transitions. [2023-08-31 21:28:09,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 169 transitions, 690 flow [2023-08-31 21:28:09,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 169 transitions, 664 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:28:09,196 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 356 flow [2023-08-31 21:28:09,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2023-08-31 21:28:09,196 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2023-08-31 21:28:09,197 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 356 flow [2023-08-31 21:28:09,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 315.0) internal successors, (1890), 6 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:09,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:09,197 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:09,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:28:09,197 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:09,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:09,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1816870821, now seen corresponding path program 1 times [2023-08-31 21:28:09,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:09,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550746989] [2023-08-31 21:28:09,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:09,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:28:09,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:09,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550746989] [2023-08-31 21:28:09,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550746989] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:09,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:09,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:28:09,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053236954] [2023-08-31 21:28:09,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:09,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:28:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:09,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:28:09,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:28:09,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 608 [2023-08-31 21:28:09,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 356 flow. Second operand has 6 states, 6 states have (on average 307.8333333333333) internal successors, (1847), 6 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:09,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:09,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 608 [2023-08-31 21:28:09,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:10,066 INFO L130 PetriNetUnfolder]: 722/1817 cut-off events. [2023-08-31 21:28:10,067 INFO L131 PetriNetUnfolder]: For 206/240 co-relation queries the response was YES. [2023-08-31 21:28:10,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3409 conditions, 1817 events. 722/1817 cut-off events. For 206/240 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 12035 event pairs, 165 based on Foata normal form. 0/1632 useless extension candidates. Maximal degree in co-relation 3394. Up to 512 conditions per place. [2023-08-31 21:28:10,084 INFO L137 encePairwiseOnDemand]: 601/608 looper letters, 96 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2023-08-31 21:28:10,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 163 transitions, 678 flow [2023-08-31 21:28:10,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:28:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:28:10,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1920 transitions. [2023-08-31 21:28:10,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2023-08-31 21:28:10,089 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1920 transitions. [2023-08-31 21:28:10,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1920 transitions. [2023-08-31 21:28:10,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:10,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1920 transitions. [2023-08-31 21:28:10,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:10,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:10,096 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:10,096 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 356 flow. Second operand 6 states and 1920 transitions. [2023-08-31 21:28:10,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 163 transitions, 678 flow [2023-08-31 21:28:10,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 163 transitions, 663 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:28:10,099 INFO L231 Difference]: Finished difference. Result has 124 places, 115 transitions, 355 flow [2023-08-31 21:28:10,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=355, PETRI_PLACES=124, PETRI_TRANSITIONS=115} [2023-08-31 21:28:10,099 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -3 predicate places. [2023-08-31 21:28:10,099 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 115 transitions, 355 flow [2023-08-31 21:28:10,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.8333333333333) internal successors, (1847), 6 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:10,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:28:10,100 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:10,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:28:10,100 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-08-31 21:28:10,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:28:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1991814029, now seen corresponding path program 1 times [2023-08-31 21:28:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:28:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717091265] [2023-08-31 21:28:10,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:28:10,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:28:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:28:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-31 21:28:10,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:28:10,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717091265] [2023-08-31 21:28:10,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717091265] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:28:10,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:28:10,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:28:10,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796890862] [2023-08-31 21:28:10,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:28:10,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:28:10,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:28:10,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:28:10,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:28:10,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 608 [2023-08-31 21:28:10,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 115 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:10,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:28:10,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 608 [2023-08-31 21:28:10,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:28:11,105 INFO L130 PetriNetUnfolder]: 916/2424 cut-off events. [2023-08-31 21:28:11,105 INFO L131 PetriNetUnfolder]: For 238/238 co-relation queries the response was YES. [2023-08-31 21:28:11,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4467 conditions, 2424 events. 916/2424 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 16749 event pairs, 196 based on Foata normal form. 0/2239 useless extension candidates. Maximal degree in co-relation 4452. Up to 701 conditions per place. [2023-08-31 21:28:11,110 INFO L137 encePairwiseOnDemand]: 601/608 looper letters, 0 selfloop transitions, 0 changer transitions 179/179 dead transitions. [2023-08-31 21:28:11,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 179 transitions, 754 flow [2023-08-31 21:28:11,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:28:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:28:11,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1940 transitions. [2023-08-31 21:28:11,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317982456140351 [2023-08-31 21:28:11,114 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1940 transitions. [2023-08-31 21:28:11,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1940 transitions. [2023-08-31 21:28:11,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:28:11,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1940 transitions. [2023-08-31 21:28:11,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:11,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:11,121 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 608.0) internal successors, (4256), 7 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:11,121 INFO L175 Difference]: Start difference. First operand has 124 places, 115 transitions, 355 flow. Second operand 6 states and 1940 transitions. [2023-08-31 21:28:11,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 179 transitions, 754 flow [2023-08-31 21:28:11,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 179 transitions, 728 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:28:11,124 INFO L231 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2023-08-31 21:28:11,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=608, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2023-08-31 21:28:11,124 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2023-08-31 21:28:11,124 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2023-08-31 21:28:11,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 307.3333333333333) internal successors, (1844), 6 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:28:11,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2023-08-31 21:28:11,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2023-08-31 21:28:11,128 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2023-08-31 21:28:11,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2023-08-31 21:28:11,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2023-08-31 21:28:11,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2023-08-31 21:28:11,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2023-08-31 21:28:11,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2023-08-31 21:28:11,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2023-08-31 21:28:11,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2023-08-31 21:28:11,129 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2023-08-31 21:28:11,131 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2023-08-31 21:28:11,132 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2023-08-31 21:28:11,133 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2023-08-31 21:28:11,134 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2023-08-31 21:28:11,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2023-08-31 21:28:11,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2023-08-31 21:28:11,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2023-08-31 21:28:11,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2023-08-31 21:28:11,135 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2023-08-31 21:28:11,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2023-08-31 21:28:11,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2023-08-31 21:28:11,136 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2023-08-31 21:28:11,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:28:11,136 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:28:11,141 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:28:11,141 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:28:11,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:28:11 BasicIcfg [2023-08-31 21:28:11,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:28:11,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:28:11,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:28:11,143 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:28:11,144 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:27:56" (3/4) ... [2023-08-31 21:28:11,145 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:28:11,153 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:28:11,153 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:28:11,158 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-31 21:28:11,158 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:28:11,158 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:28:11,159 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:28:11,256 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:28:11,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:28:11,257 INFO L158 Benchmark]: Toolchain (without parser) took 15749.66ms. Allocated memory was 81.8MB in the beginning and 518.0MB in the end (delta: 436.2MB). Free memory was 34.1MB in the beginning and 469.1MB in the end (delta: -435.1MB). Peak memory consumption was 86.3MB. Max. memory is 16.1GB. [2023-08-31 21:28:11,257 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 81.8MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:28:11,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.02ms. Allocated memory is still 81.8MB. Free memory was 33.8MB in the beginning and 53.2MB in the end (delta: -19.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-08-31 21:28:11,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.27ms. Allocated memory is still 81.8MB. Free memory was 53.2MB in the beginning and 50.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:28:11,258 INFO L158 Benchmark]: Boogie Preprocessor took 49.12ms. Allocated memory is still 81.8MB. Free memory was 50.0MB in the beginning and 47.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:28:11,258 INFO L158 Benchmark]: RCFGBuilder took 598.04ms. Allocated memory is still 81.8MB. Free memory was 46.9MB in the beginning and 44.6MB in the end (delta: 2.3MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2023-08-31 21:28:11,258 INFO L158 Benchmark]: TraceAbstraction took 14702.81ms. Allocated memory was 81.8MB in the beginning and 411.0MB in the end (delta: 329.3MB). Free memory was 43.8MB in the beginning and 281.2MB in the end (delta: -237.5MB). Peak memory consumption was 264.3MB. Max. memory is 16.1GB. [2023-08-31 21:28:11,258 INFO L158 Benchmark]: Witness Printer took 113.08ms. Allocated memory was 411.0MB in the beginning and 518.0MB in the end (delta: 107.0MB). Free memory was 281.2MB in the beginning and 469.1MB in the end (delta: -187.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:28:11,260 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 81.8MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.02ms. Allocated memory is still 81.8MB. Free memory was 33.8MB in the beginning and 53.2MB in the end (delta: -19.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.27ms. Allocated memory is still 81.8MB. Free memory was 53.2MB in the beginning and 50.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.12ms. Allocated memory is still 81.8MB. Free memory was 50.0MB in the beginning and 47.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 598.04ms. Allocated memory is still 81.8MB. Free memory was 46.9MB in the beginning and 44.6MB in the end (delta: 2.3MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 14702.81ms. Allocated memory was 81.8MB in the beginning and 411.0MB in the end (delta: 329.3MB). Free memory was 43.8MB in the beginning and 281.2MB in the end (delta: -237.5MB). Peak memory consumption was 264.3MB. Max. memory is 16.1GB. * Witness Printer took 113.08ms. Allocated memory was 411.0MB in the beginning and 518.0MB in the end (delta: 107.0MB). Free memory was 281.2MB in the beginning and 469.1MB in the end (delta: -187.9MB). 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: 4.6s, 317 PlacesBefore, 127 PlacesAfterwards, 328 TransitionsBefore, 131 TransitionsAfterwards, 18468 CoEnabledTransitionPairs, 7 FixpointIterations, 134 TrivialSequentialCompositions, 79 ConcurrentSequentialCompositions, 23 TrivialYvCompositions, 20 ConcurrentYvCompositions, 7 ChoiceCompositions, 263 TotalNumberOfCompositions, 120361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25295, independent: 23730, independent conditional: 0, independent unconditional: 23730, dependent: 1565, dependent conditional: 0, dependent unconditional: 1565, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8575, independent: 8347, independent conditional: 0, independent unconditional: 8347, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25295, independent: 15383, independent conditional: 0, independent unconditional: 15383, dependent: 1337, dependent conditional: 0, dependent unconditional: 1337, unknown: 8575, unknown conditional: 0, unknown unconditional: 8575] , Statistics on independence cache: Total cache size (in pairs): 1484, Positive cache size: 1377, Positive conditional cache size: 0, Positive unconditional cache size: 1377, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: 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: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 483 locations, 56 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: 14.5s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2645 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1650 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 1074 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5571 IncrementalHoareTripleChecker+Invalid, 6645 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1074 mSolverCounterUnsat, 72 mSDtfsCounter, 5571 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=9, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 322 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 2 NumberOfNonLiveVariables, 701 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 239/282 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! [2023-08-31 21:28:11,305 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