./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.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 e4c79b7a5b8db7237eb9e98d6143d48d2d4ec5b8465b95c5ccb44c5e387749db --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:35:07,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:35:07,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:35:08,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:35:08,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:35:08,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:35:08,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:35:08,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:35:08,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:35:08,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:35:08,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:35:08,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:35:08,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:35:08,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:35:08,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:35:08,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:35:08,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:35:08,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:35:08,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:35:08,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:35:08,045 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:35:08,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:35:08,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:35:08,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:35:08,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:35:08,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:35:08,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:35:08,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:35:08,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:35:08,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:35:08,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:35:08,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:35:08,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:35:08,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:35:08,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:35:08,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:35:08,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:35:08,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:35:08,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:35:08,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:35:08,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:35:08,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:35:08,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:35:08,093 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:35:08,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:35:08,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:35:08,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:35:08,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:35:08,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:35:08,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:35:08,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:35:08,096 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:35:08,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:35:08,097 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:35:08,097 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:35:08,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:35:08,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:35:08,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:35:08,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:35:08,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:35:08,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:35:08,098 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:35:08,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:35:08,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:35:08,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:35:08,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:35:08,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:35:08,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:35:08,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:35:08,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:35:08,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:35:08,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:35:08,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:35:08,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:35:08,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:35:08,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:35:08,101 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:35:08,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:35:08,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4c79b7a5b8db7237eb9e98d6143d48d2d4ec5b8465b95c5ccb44c5e387749db [2022-04-18 16:35:08,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:35:08,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:35:08,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:35:08,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:35:08,285 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:35:08,286 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2022-04-18 16:35:08,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba07b972/6af9b4e3b47940a4b7f7edf5b69670f3/FLAG9eed783f0 [2022-04-18 16:35:08,640 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:35:08,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c [2022-04-18 16:35:08,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba07b972/6af9b4e3b47940a4b7f7edf5b69670f3/FLAG9eed783f0 [2022-04-18 16:35:08,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba07b972/6af9b4e3b47940a4b7f7edf5b69670f3 [2022-04-18 16:35:08,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:35:08,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:35:08,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:35:08,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:35:08,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:35:08,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e1f4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08, skipping insertion in model container [2022-04-18 16:35:08,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:35:08,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:35:08,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2476,2489] [2022-04-18 16:35:08,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:35:08,852 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:35:08,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-threaded-sum-2.wvr.c[2476,2489] [2022-04-18 16:35:08,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:35:08,900 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:35:08,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08 WrapperNode [2022-04-18 16:35:08,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:35:08,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:35:08,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:35:08,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:35:08,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,939 INFO L137 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 103 [2022-04-18 16:35:08,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:35:08,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:35:08,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:35:08,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:35:08,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:35:08,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:35:08,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:35:08,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:35:08,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (1/1) ... [2022-04-18 16:35:08,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:35:08,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:35:09,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 16:35:09,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 16:35:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:35:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:35:09,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:35:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:35:09,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:35:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:35:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:35:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:35:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:35:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:35:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:35:09,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:35:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:35:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:35:09,076 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:35:09,136 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:35:09,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:35:09,350 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:35:09,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:35:09,449 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 16:35:09,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:09 BoogieIcfgContainer [2022-04-18 16:35:09,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:35:09,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:35:09,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:35:09,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:35:09,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:35:08" (1/3) ... [2022-04-18 16:35:09,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c8ad0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:35:09, skipping insertion in model container [2022-04-18 16:35:09,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:35:08" (2/3) ... [2022-04-18 16:35:09,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c8ad0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:35:09, skipping insertion in model container [2022-04-18 16:35:09,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:09" (3/3) ... [2022-04-18 16:35:09,457 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2022-04-18 16:35:09,460 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:35:09,460 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:35:09,460 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-04-18 16:35:09,461 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:35:09,497 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:35:09,530 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:35:09,535 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-18 16:35:09,535 INFO L341 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2022-04-18 16:35:09,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 160 transitions, 336 flow [2022-04-18 16:35:09,593 INFO L129 PetriNetUnfolder]: 7/158 cut-off events. [2022-04-18 16:35:09,594 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:35:09,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 158 events. 7/158 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 134 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2022-04-18 16:35:09,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 160 transitions, 336 flow [2022-04-18 16:35:09,607 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 140 transitions, 292 flow [2022-04-18 16:35:09,617 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2022-04-18 16:35:09,617 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:35:09,617 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:09,618 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:09,618 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:09,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:09,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1875678653, now seen corresponding path program 1 times [2022-04-18 16:35:09,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:09,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143833802] [2022-04-18 16:35:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:09,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:09,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:09,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:09,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143833802] [2022-04-18 16:35:09,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143833802] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:09,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:09,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:09,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910804072] [2022-04-18 16:35:09,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:09,778 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:09,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:09,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:09,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:09,813 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 160 [2022-04-18 16:35:09,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 140 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:09,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:09,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 160 [2022-04-18 16:35:09,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:09,915 INFO L129 PetriNetUnfolder]: 21/166 cut-off events. [2022-04-18 16:35:09,915 INFO L130 PetriNetUnfolder]: For 19/30 co-relation queries the response was YES. [2022-04-18 16:35:09,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 166 events. 21/166 cut-off events. For 19/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 251 event pairs, 11 based on Foata normal form. 10/152 useless extension candidates. Maximal degree in co-relation 105. Up to 50 conditions per place. [2022-04-18 16:35:09,919 INFO L132 encePairwiseOnDemand]: 139/160 looper letters, 20 selfloop transitions, 2 changer transitions 1/121 dead transitions. [2022-04-18 16:35:09,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 121 transitions, 298 flow [2022-04-18 16:35:09,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:09,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:09,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2022-04-18 16:35:09,935 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2022-04-18 16:35:09,936 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2022-04-18 16:35:09,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2022-04-18 16:35:09,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:09,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2022-04-18 16:35:09,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:09,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:09,974 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:09,976 INFO L186 Difference]: Start difference. First operand has 141 places, 140 transitions, 292 flow. Second operand 3 states and 392 transitions. [2022-04-18 16:35:09,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 121 transitions, 298 flow [2022-04-18 16:35:09,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 121 transitions, 290 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:09,981 INFO L242 Difference]: Finished difference. Result has 123 places, 120 transitions, 248 flow [2022-04-18 16:35:09,983 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=123, PETRI_TRANSITIONS=120} [2022-04-18 16:35:09,986 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -18 predicate places. [2022-04-18 16:35:09,986 INFO L478 AbstractCegarLoop]: Abstraction has has 123 places, 120 transitions, 248 flow [2022-04-18 16:35:09,987 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:09,987 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:09,987 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:09,987 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:35:09,988 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:09,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:09,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1680405455, now seen corresponding path program 1 times [2022-04-18 16:35:09,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:09,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135333559] [2022-04-18 16:35:09,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:09,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:10,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:10,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135333559] [2022-04-18 16:35:10,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135333559] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:10,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:10,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:10,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752956221] [2022-04-18 16:35:10,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:10,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:10,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:10,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:10,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:10,048 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 160 [2022-04-18 16:35:10,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:10,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 160 [2022-04-18 16:35:10,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:10,111 INFO L129 PetriNetUnfolder]: 21/164 cut-off events. [2022-04-18 16:35:10,111 INFO L130 PetriNetUnfolder]: For 5/16 co-relation queries the response was YES. [2022-04-18 16:35:10,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 164 events. 21/164 cut-off events. For 5/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 247 event pairs, 11 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 193. Up to 50 conditions per place. [2022-04-18 16:35:10,112 INFO L132 encePairwiseOnDemand]: 157/160 looper letters, 20 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2022-04-18 16:35:10,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 290 flow [2022-04-18 16:35:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2022-04-18 16:35:10,114 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7791666666666667 [2022-04-18 16:35:10,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 374 transitions. [2022-04-18 16:35:10,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 374 transitions. [2022-04-18 16:35:10,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:10,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 374 transitions. [2022-04-18 16:35:10,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,117 INFO L186 Difference]: Start difference. First operand has 123 places, 120 transitions, 248 flow. Second operand 3 states and 374 transitions. [2022-04-18 16:35:10,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 290 flow [2022-04-18 16:35:10,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 286 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:10,120 INFO L242 Difference]: Finished difference. Result has 121 places, 119 transitions, 246 flow [2022-04-18 16:35:10,120 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=121, PETRI_TRANSITIONS=119} [2022-04-18 16:35:10,121 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -20 predicate places. [2022-04-18 16:35:10,121 INFO L478 AbstractCegarLoop]: Abstraction has has 121 places, 119 transitions, 246 flow [2022-04-18 16:35:10,121 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,121 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:10,122 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:10,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:35:10,122 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:10,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:10,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2063608926, now seen corresponding path program 1 times [2022-04-18 16:35:10,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:10,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619157602] [2022-04-18 16:35:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:10,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:10,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:10,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619157602] [2022-04-18 16:35:10,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619157602] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:10,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:10,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:10,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97090894] [2022-04-18 16:35:10,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:10,157 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:10,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:10,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:10,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:10,159 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 160 [2022-04-18 16:35:10,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 119 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,160 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:10,160 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 160 [2022-04-18 16:35:10,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:10,202 INFO L129 PetriNetUnfolder]: 28/239 cut-off events. [2022-04-18 16:35:10,202 INFO L130 PetriNetUnfolder]: For 9/41 co-relation queries the response was YES. [2022-04-18 16:35:10,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 239 events. 28/239 cut-off events. For 9/41 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 643 event pairs, 5 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 271. Up to 32 conditions per place. [2022-04-18 16:35:10,204 INFO L132 encePairwiseOnDemand]: 153/160 looper letters, 21 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2022-04-18 16:35:10,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 126 transitions, 315 flow [2022-04-18 16:35:10,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:10,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-04-18 16:35:10,206 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8083333333333333 [2022-04-18 16:35:10,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-04-18 16:35:10,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-04-18 16:35:10,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:10,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-04-18 16:35:10,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,209 INFO L186 Difference]: Start difference. First operand has 121 places, 119 transitions, 246 flow. Second operand 3 states and 388 transitions. [2022-04-18 16:35:10,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 126 transitions, 315 flow [2022-04-18 16:35:10,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 126 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:10,211 INFO L242 Difference]: Finished difference. Result has 121 places, 120 transitions, 270 flow [2022-04-18 16:35:10,212 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=121, PETRI_TRANSITIONS=120} [2022-04-18 16:35:10,212 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -20 predicate places. [2022-04-18 16:35:10,212 INFO L478 AbstractCegarLoop]: Abstraction has has 121 places, 120 transitions, 270 flow [2022-04-18 16:35:10,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,213 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:10,213 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:10,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:35:10,214 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:10,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:10,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1800288763, now seen corresponding path program 1 times [2022-04-18 16:35:10,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:10,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126400472] [2022-04-18 16:35:10,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:10,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:10,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:10,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126400472] [2022-04-18 16:35:10,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126400472] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:10,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:10,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:10,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248711957] [2022-04-18 16:35:10,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:10,239 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:10,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:10,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:10,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:10,240 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 160 [2022-04-18 16:35:10,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 120 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:10,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 160 [2022-04-18 16:35:10,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:10,288 INFO L129 PetriNetUnfolder]: 28/221 cut-off events. [2022-04-18 16:35:10,288 INFO L130 PetriNetUnfolder]: For 55/100 co-relation queries the response was YES. [2022-04-18 16:35:10,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 221 events. 28/221 cut-off events. For 55/100 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 525 event pairs, 10 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 130. Up to 65 conditions per place. [2022-04-18 16:35:10,289 INFO L132 encePairwiseOnDemand]: 157/160 looper letters, 20 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2022-04-18 16:35:10,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 119 transitions, 312 flow [2022-04-18 16:35:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:10,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:10,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2022-04-18 16:35:10,291 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-04-18 16:35:10,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2022-04-18 16:35:10,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2022-04-18 16:35:10,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:10,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2022-04-18 16:35:10,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,294 INFO L186 Difference]: Start difference. First operand has 121 places, 120 transitions, 270 flow. Second operand 3 states and 380 transitions. [2022-04-18 16:35:10,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 119 transitions, 312 flow [2022-04-18 16:35:10,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:10,297 INFO L242 Difference]: Finished difference. Result has 120 places, 119 transitions, 262 flow [2022-04-18 16:35:10,297 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2022-04-18 16:35:10,297 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -21 predicate places. [2022-04-18 16:35:10,298 INFO L478 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 262 flow [2022-04-18 16:35:10,298 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,298 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:10,298 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:10,298 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:35:10,299 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:10,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1145408061, now seen corresponding path program 1 times [2022-04-18 16:35:10,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:10,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437407814] [2022-04-18 16:35:10,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:10,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:10,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:10,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437407814] [2022-04-18 16:35:10,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437407814] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:10,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:10,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:10,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901328408] [2022-04-18 16:35:10,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:10,322 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:10,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:10,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:10,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:10,324 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 160 [2022-04-18 16:35:10,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:10,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 160 [2022-04-18 16:35:10,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:10,361 INFO L129 PetriNetUnfolder]: 28/207 cut-off events. [2022-04-18 16:35:10,361 INFO L130 PetriNetUnfolder]: For 29/58 co-relation queries the response was YES. [2022-04-18 16:35:10,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 207 events. 28/207 cut-off events. For 29/58 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 448 event pairs, 7 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 258. Up to 47 conditions per place. [2022-04-18 16:35:10,363 INFO L132 encePairwiseOnDemand]: 155/160 looper letters, 22 selfloop transitions, 3 changer transitions 0/122 dead transitions. [2022-04-18 16:35:10,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 122 transitions, 327 flow [2022-04-18 16:35:10,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:10,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2022-04-18 16:35:10,364 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7979166666666667 [2022-04-18 16:35:10,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2022-04-18 16:35:10,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2022-04-18 16:35:10,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:10,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2022-04-18 16:35:10,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,367 INFO L186 Difference]: Start difference. First operand has 120 places, 119 transitions, 262 flow. Second operand 3 states and 383 transitions. [2022-04-18 16:35:10,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 122 transitions, 327 flow [2022-04-18 16:35:10,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 122 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:10,370 INFO L242 Difference]: Finished difference. Result has 118 places, 117 transitions, 260 flow [2022-04-18 16:35:10,370 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=118, PETRI_TRANSITIONS=117} [2022-04-18 16:35:10,371 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -23 predicate places. [2022-04-18 16:35:10,371 INFO L478 AbstractCegarLoop]: Abstraction has has 118 places, 117 transitions, 260 flow [2022-04-18 16:35:10,371 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,371 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:10,372 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:10,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:35:10,372 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:10,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:10,372 INFO L85 PathProgramCache]: Analyzing trace with hash -890181240, now seen corresponding path program 1 times [2022-04-18 16:35:10,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:10,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245022047] [2022-04-18 16:35:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:10,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:10,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:10,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245022047] [2022-04-18 16:35:10,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245022047] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:10,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:10,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:10,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257967734] [2022-04-18 16:35:10,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:10,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:10,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:10,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:10,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:10,396 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 160 [2022-04-18 16:35:10,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 117 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:10,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 160 [2022-04-18 16:35:10,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:10,429 INFO L129 PetriNetUnfolder]: 28/206 cut-off events. [2022-04-18 16:35:10,430 INFO L130 PetriNetUnfolder]: For 31/60 co-relation queries the response was YES. [2022-04-18 16:35:10,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 206 events. 28/206 cut-off events. For 31/60 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 444 event pairs, 10 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 178. Up to 63 conditions per place. [2022-04-18 16:35:10,431 INFO L132 encePairwiseOnDemand]: 157/160 looper letters, 19 selfloop transitions, 2 changer transitions 0/116 dead transitions. [2022-04-18 16:35:10,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 116 transitions, 300 flow [2022-04-18 16:35:10,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:10,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:10,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 379 transitions. [2022-04-18 16:35:10,432 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7895833333333333 [2022-04-18 16:35:10,432 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 379 transitions. [2022-04-18 16:35:10,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 379 transitions. [2022-04-18 16:35:10,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:10,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 379 transitions. [2022-04-18 16:35:10,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,435 INFO L186 Difference]: Start difference. First operand has 118 places, 117 transitions, 260 flow. Second operand 3 states and 379 transitions. [2022-04-18 16:35:10,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 116 transitions, 300 flow [2022-04-18 16:35:10,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 116 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:10,438 INFO L242 Difference]: Finished difference. Result has 117 places, 116 transitions, 256 flow [2022-04-18 16:35:10,438 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2022-04-18 16:35:10,438 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -24 predicate places. [2022-04-18 16:35:10,439 INFO L478 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 256 flow [2022-04-18 16:35:10,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,439 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:10,439 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:10,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:35:10,440 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:10,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash 880780688, now seen corresponding path program 1 times [2022-04-18 16:35:10,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:10,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496512269] [2022-04-18 16:35:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:10,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:10,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:10,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496512269] [2022-04-18 16:35:10,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496512269] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:10,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:10,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:10,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021048] [2022-04-18 16:35:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:10,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:10,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:10,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:10,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:10,557 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 160 [2022-04-18 16:35:10,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 112.83333333333333) internal successors, (677), 6 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:10,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 160 [2022-04-18 16:35:10,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:10,707 INFO L129 PetriNetUnfolder]: 262/597 cut-off events. [2022-04-18 16:35:10,707 INFO L130 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2022-04-18 16:35:10,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 597 events. 262/597 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2135 event pairs, 23 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 1148. Up to 196 conditions per place. [2022-04-18 16:35:10,711 INFO L132 encePairwiseOnDemand]: 155/160 looper letters, 65 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2022-04-18 16:35:10,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 155 transitions, 528 flow [2022-04-18 16:35:10,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:10,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 721 transitions. [2022-04-18 16:35:10,713 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7510416666666667 [2022-04-18 16:35:10,713 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 721 transitions. [2022-04-18 16:35:10,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 721 transitions. [2022-04-18 16:35:10,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:10,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 721 transitions. [2022-04-18 16:35:10,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.16666666666667) internal successors, (721), 6 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,716 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,716 INFO L186 Difference]: Start difference. First operand has 117 places, 116 transitions, 256 flow. Second operand 6 states and 721 transitions. [2022-04-18 16:35:10,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 155 transitions, 528 flow [2022-04-18 16:35:10,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 155 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:35:10,719 INFO L242 Difference]: Finished difference. Result has 119 places, 115 transitions, 258 flow [2022-04-18 16:35:10,719 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=258, PETRI_PLACES=119, PETRI_TRANSITIONS=115} [2022-04-18 16:35:10,720 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -22 predicate places. [2022-04-18 16:35:10,720 INFO L478 AbstractCegarLoop]: Abstraction has has 119 places, 115 transitions, 258 flow [2022-04-18 16:35:10,720 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.83333333333333) internal successors, (677), 6 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,721 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:10,721 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:10,721 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:35:10,721 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:10,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:10,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1680756184, now seen corresponding path program 1 times [2022-04-18 16:35:10,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:10,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484235897] [2022-04-18 16:35:10,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:10,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:10,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:10,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:10,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484235897] [2022-04-18 16:35:10,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484235897] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:10,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:10,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:35:10,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962100173] [2022-04-18 16:35:10,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:10,802 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:35:10,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:10,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:35:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:35:10,804 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 160 [2022-04-18 16:35:10,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 115 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:10,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 160 [2022-04-18 16:35:10,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:10,944 INFO L129 PetriNetUnfolder]: 233/550 cut-off events. [2022-04-18 16:35:10,944 INFO L130 PetriNetUnfolder]: For 166/166 co-relation queries the response was YES. [2022-04-18 16:35:10,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 550 events. 233/550 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1905 event pairs, 107 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 236. Up to 316 conditions per place. [2022-04-18 16:35:10,947 INFO L132 encePairwiseOnDemand]: 155/160 looper letters, 44 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2022-04-18 16:35:10,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 134 transitions, 408 flow [2022-04-18 16:35:10,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:35:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:35:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 708 transitions. [2022-04-18 16:35:10,948 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7375 [2022-04-18 16:35:10,949 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 708 transitions. [2022-04-18 16:35:10,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 708 transitions. [2022-04-18 16:35:10,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:10,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 708 transitions. [2022-04-18 16:35:10,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,951 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,951 INFO L186 Difference]: Start difference. First operand has 119 places, 115 transitions, 258 flow. Second operand 6 states and 708 transitions. [2022-04-18 16:35:10,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 134 transitions, 408 flow [2022-04-18 16:35:10,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 134 transitions, 401 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:10,955 INFO L242 Difference]: Finished difference. Result has 119 places, 114 transitions, 257 flow [2022-04-18 16:35:10,955 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=257, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2022-04-18 16:35:10,958 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -22 predicate places. [2022-04-18 16:35:10,958 INFO L478 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 257 flow [2022-04-18 16:35:10,958 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:10,958 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:10,958 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:10,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:35:10,958 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:10,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:10,959 INFO L85 PathProgramCache]: Analyzing trace with hash 480212641, now seen corresponding path program 1 times [2022-04-18 16:35:10,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:10,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327174698] [2022-04-18 16:35:10,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:10,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:11,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:11,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327174698] [2022-04-18 16:35:11,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327174698] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:11,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:11,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040103817] [2022-04-18 16:35:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:11,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:11,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:11,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:11,030 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 160 [2022-04-18 16:35:11,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:11,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 160 [2022-04-18 16:35:11,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:11,063 INFO L129 PetriNetUnfolder]: 28/212 cut-off events. [2022-04-18 16:35:11,063 INFO L130 PetriNetUnfolder]: For 29/74 co-relation queries the response was YES. [2022-04-18 16:35:11,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 212 events. 28/212 cut-off events. For 29/74 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 486 event pairs, 10 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 264. Up to 56 conditions per place. [2022-04-18 16:35:11,064 INFO L132 encePairwiseOnDemand]: 158/160 looper letters, 15 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2022-04-18 16:35:11,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 113 transitions, 287 flow [2022-04-18 16:35:11,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2022-04-18 16:35:11,066 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2022-04-18 16:35:11,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2022-04-18 16:35:11,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2022-04-18 16:35:11,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:11,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2022-04-18 16:35:11,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,068 INFO L186 Difference]: Start difference. First operand has 119 places, 114 transitions, 257 flow. Second operand 3 states and 392 transitions. [2022-04-18 16:35:11,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 113 transitions, 287 flow [2022-04-18 16:35:11,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 113 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:35:11,071 INFO L242 Difference]: Finished difference. Result has 116 places, 113 transitions, 250 flow [2022-04-18 16:35:11,071 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=116, PETRI_TRANSITIONS=113} [2022-04-18 16:35:11,072 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -25 predicate places. [2022-04-18 16:35:11,072 INFO L478 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 250 flow [2022-04-18 16:35:11,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,073 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:11,073 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:11,073 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:35:11,073 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:11,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2070425721, now seen corresponding path program 1 times [2022-04-18 16:35:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:11,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048094833] [2022-04-18 16:35:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:11,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:11,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:11,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048094833] [2022-04-18 16:35:11,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048094833] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:11,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:11,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:11,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594134436] [2022-04-18 16:35:11,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:11,147 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:11,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:11,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:11,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:11,149 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 160 [2022-04-18 16:35:11,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 113 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:11,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 160 [2022-04-18 16:35:11,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:11,179 INFO L129 PetriNetUnfolder]: 28/210 cut-off events. [2022-04-18 16:35:11,179 INFO L130 PetriNetUnfolder]: For 29/74 co-relation queries the response was YES. [2022-04-18 16:35:11,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 210 events. 28/210 cut-off events. For 29/74 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 488 event pairs, 10 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 290. Up to 58 conditions per place. [2022-04-18 16:35:11,180 INFO L132 encePairwiseOnDemand]: 158/160 looper letters, 17 selfloop transitions, 1 changer transitions 0/112 dead transitions. [2022-04-18 16:35:11,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 112 transitions, 284 flow [2022-04-18 16:35:11,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:11,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2022-04-18 16:35:11,182 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8020833333333334 [2022-04-18 16:35:11,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2022-04-18 16:35:11,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2022-04-18 16:35:11,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:11,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2022-04-18 16:35:11,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,184 INFO L186 Difference]: Start difference. First operand has 116 places, 113 transitions, 250 flow. Second operand 3 states and 385 transitions. [2022-04-18 16:35:11,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 112 transitions, 284 flow [2022-04-18 16:35:11,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 112 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:11,187 INFO L242 Difference]: Finished difference. Result has 116 places, 112 transitions, 249 flow [2022-04-18 16:35:11,187 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=116, PETRI_TRANSITIONS=112} [2022-04-18 16:35:11,188 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -25 predicate places. [2022-04-18 16:35:11,188 INFO L478 AbstractCegarLoop]: Abstraction has has 116 places, 112 transitions, 249 flow [2022-04-18 16:35:11,188 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,188 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:35:11,189 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:11,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:35:11,189 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2022-04-18 16:35:11,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:35:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash 327656066, now seen corresponding path program 1 times [2022-04-18 16:35:11,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:35:11,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498605171] [2022-04-18 16:35:11,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:35:11,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:35:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:35:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:35:11,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:35:11,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498605171] [2022-04-18 16:35:11,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498605171] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:35:11,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:35:11,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:35:11,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143596845] [2022-04-18 16:35:11,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:35:11,253 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:35:11,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:35:11,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:35:11,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:35:11,255 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 160 [2022-04-18 16:35:11,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 112 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:35:11,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 160 [2022-04-18 16:35:11,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:35:11,282 INFO L129 PetriNetUnfolder]: 28/208 cut-off events. [2022-04-18 16:35:11,282 INFO L130 PetriNetUnfolder]: For 29/74 co-relation queries the response was YES. [2022-04-18 16:35:11,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 208 events. 28/208 cut-off events. For 29/74 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 486 event pairs, 10 based on Foata normal form. 2/190 useless extension candidates. Maximal degree in co-relation 296. Up to 58 conditions per place. [2022-04-18 16:35:11,283 INFO L132 encePairwiseOnDemand]: 158/160 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2022-04-18 16:35:11,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 111 transitions, 281 flow [2022-04-18 16:35:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:35:11,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:35:11,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-04-18 16:35:11,284 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8 [2022-04-18 16:35:11,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-04-18 16:35:11,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-04-18 16:35:11,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:35:11,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-04-18 16:35:11,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 160.0) internal successors, (640), 4 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,285 INFO L186 Difference]: Start difference. First operand has 116 places, 112 transitions, 249 flow. Second operand 3 states and 384 transitions. [2022-04-18 16:35:11,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 111 transitions, 281 flow [2022-04-18 16:35:11,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:35:11,287 INFO L242 Difference]: Finished difference. Result has 116 places, 0 transitions, 0 flow [2022-04-18 16:35:11,287 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=116, PETRI_TRANSITIONS=0} [2022-04-18 16:35:11,288 INFO L335 CegarLoopForPetriNet]: 141 programPoint places, -25 predicate places. [2022-04-18 16:35:11,288 INFO L478 AbstractCegarLoop]: Abstraction has has 116 places, 0 transitions, 0 flow [2022-04-18 16:35:11,288 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:35:11,291 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (44 of 45 remaining) [2022-04-18 16:35:11,291 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2022-04-18 16:35:11,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2022-04-18 16:35:11,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2022-04-18 16:35:11,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2022-04-18 16:35:11,293 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (38 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2022-04-18 16:35:11,294 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2022-04-18 16:35:11,295 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2022-04-18 16:35:11,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2022-04-18 16:35:11,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2022-04-18 16:35:11,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2022-04-18 16:35:11,298 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2022-04-18 16:35:11,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2022-04-18 16:35:11,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2022-04-18 16:35:11,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2022-04-18 16:35:11,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2022-04-18 16:35:11,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2022-04-18 16:35:11,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2022-04-18 16:35:11,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2022-04-18 16:35:11,300 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2022-04-18 16:35:11,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2022-04-18 16:35:11,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2022-04-18 16:35:11,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2022-04-18 16:35:11,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2022-04-18 16:35:11,301 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2022-04-18 16:35:11,301 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:35:11,304 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:35:11,307 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:35:11,307 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:35:11,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:35:11 BasicIcfg [2022-04-18 16:35:11,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:35:11,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:35:11,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:35:11,310 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:35:11,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:35:09" (3/4) ... [2022-04-18 16:35:11,312 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:35:11,315 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:35:11,316 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:35:11,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-04-18 16:35:11,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:35:11,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:35:11,320 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:35:11,351 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:35:11,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:35:11,352 INFO L158 Benchmark]: Toolchain (without parser) took 2691.42ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 62.5MB in the beginning and 101.1MB in the end (delta: -38.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-04-18 16:35:11,352 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 92.3MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:35:11,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.60ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 51.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 16:35:11,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.39ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 49.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:35:11,353 INFO L158 Benchmark]: Boogie Preprocessor took 44.57ms. Allocated memory is still 92.3MB. Free memory was 49.2MB in the beginning and 47.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:35:11,353 INFO L158 Benchmark]: RCFGBuilder took 465.47ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 47.6MB in the beginning and 87.2MB in the end (delta: -39.6MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-04-18 16:35:11,353 INFO L158 Benchmark]: TraceAbstraction took 1857.61ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 86.6MB in the beginning and 104.3MB in the end (delta: -17.7MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-04-18 16:35:11,354 INFO L158 Benchmark]: Witness Printer took 41.41ms. Allocated memory is still 151.0MB. Free memory was 104.3MB in the beginning and 101.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:35:11,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 92.3MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.60ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 51.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.39ms. Allocated memory is still 92.3MB. Free memory was 51.0MB in the beginning and 49.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.57ms. Allocated memory is still 92.3MB. Free memory was 49.2MB in the beginning and 47.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 465.47ms. Allocated memory was 92.3MB in the beginning and 115.3MB in the end (delta: 23.1MB). Free memory was 47.6MB in the beginning and 87.2MB in the end (delta: -39.6MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1857.61ms. Allocated memory was 115.3MB in the beginning and 151.0MB in the end (delta: 35.7MB). Free memory was 86.6MB in the beginning and 104.3MB in the end (delta: -17.7MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Witness Printer took 41.41ms. Allocated memory is still 151.0MB. Free memory was 104.3MB in the beginning and 101.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: 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: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: 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, 186 locations, 45 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: 1.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 217 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 526 IncrementalHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 63 mSDtfsCounter, 526 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 654 NumberOfCodeBlocks, 654 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 643 ConstructedInterpolants, 0 QuantifiedInterpolants, 823 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 28 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:35:11,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE