./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.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/chl-sre-trans.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 672ab63d50f6d257836fb16bc257f69b3b166ee79333dc7cfe86a969c93c0f7f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:33:27,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:33:27,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:33:27,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:33:27,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:33:27,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:33:27,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:33:27,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:33:27,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:33:27,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:33:27,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:33:27,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:33:27,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:33:27,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:33:27,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:33:27,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:33:27,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:33:27,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:33:27,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:33:27,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:33:27,065 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:33:27,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:33:27,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:33:27,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:33:27,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:33:27,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:33:27,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:33:27,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:33:27,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:33:27,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:33:27,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:33:27,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:33:27,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:33:27,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:33:27,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:33:27,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:33:27,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:33:27,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:33:27,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:33:27,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:33:27,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:33:27,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:33:27,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:33:27,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:33:27,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:33:27,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:33:27,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:33:27,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:33:27,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:33:27,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:33:27,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:33:27,092 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:33:27,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:33:27,092 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:33:27,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:33:27,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:33:27,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:33:27,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:33:27,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:33:27,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:33:27,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:33:27,094 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:33:27,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:33:27,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:33:27,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:33:27,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:33:27,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:33:27,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:33:27,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:33:27,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:27,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:33:27,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:33:27,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:33:27,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:33:27,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:33:27,096 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:33:27,096 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:33:27,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:33:27,096 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672ab63d50f6d257836fb16bc257f69b3b166ee79333dc7cfe86a969c93c0f7f [2022-04-18 16:33:27,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:33:27,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:33:27,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:33:27,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:33:27,309 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:33:27,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2022-04-18 16:33:27,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c5a931de/4cc2066094d9482f8a38c3fbd800c588/FLAGee3de2d7c [2022-04-18 16:33:27,691 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:33:27,691 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-trans.wvr.c [2022-04-18 16:33:27,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c5a931de/4cc2066094d9482f8a38c3fbd800c588/FLAGee3de2d7c [2022-04-18 16:33:27,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c5a931de/4cc2066094d9482f8a38c3fbd800c588 [2022-04-18 16:33:27,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:33:27,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:33:27,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:27,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:33:27,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:33:27,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ffd9c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27, skipping insertion in model container [2022-04-18 16:33:27,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:33:27,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:33:27,856 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/chl-sre-trans.wvr.c[2272,2285] [2022-04-18 16:33:27,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:27,861 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:33:27,879 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/chl-sre-trans.wvr.c[2272,2285] [2022-04-18 16:33:27,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:27,893 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:33:27,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27 WrapperNode [2022-04-18 16:33:27,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:27,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:27,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:33:27,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:33:27,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,924 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2022-04-18 16:33:27,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:27,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:33:27,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:33:27,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:33:27,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:33:27,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:33:27,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:33:27,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:33:27,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (1/1) ... [2022-04-18 16:33:27,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:27,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:33:27,999 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 16:33:28,001 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 16:33:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:33:28,035 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:33:28,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:33:28,036 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:33:28,036 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:33:28,037 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:33:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:33:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:33:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:33:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:33:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:33:28,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:33:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:33:28,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:33:28,040 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 16:33:28,125 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:33:28,126 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:33:28,322 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:33:28,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:33:28,334 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:33:28,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:28 BoogieIcfgContainer [2022-04-18 16:33:28,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:33:28,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:33:28,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:33:28,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:33:28,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:33:27" (1/3) ... [2022-04-18 16:33:28,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f8630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:28, skipping insertion in model container [2022-04-18 16:33:28,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:27" (2/3) ... [2022-04-18 16:33:28,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6f8630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:28, skipping insertion in model container [2022-04-18 16:33:28,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:28" (3/3) ... [2022-04-18 16:33:28,343 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2022-04-18 16:33:28,347 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:33:28,347 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:33:28,347 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2022-04-18 16:33:28,347 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:33:28,435 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:33:28,505 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:33:28,515 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 16:33:28,515 INFO L341 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-04-18 16:33:28,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 210 places, 209 transitions, 442 flow [2022-04-18 16:33:28,587 INFO L129 PetriNetUnfolder]: 9/206 cut-off events. [2022-04-18 16:33:28,587 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:28,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 206 events. 9/206 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 335 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 115. Up to 2 conditions per place. [2022-04-18 16:33:28,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 209 transitions, 442 flow [2022-04-18 16:33:28,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 182 transitions, 382 flow [2022-04-18 16:33:28,604 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2022-04-18 16:33:28,604 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:28,604 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:28,605 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] [2022-04-18 16:33:28,605 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:28,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:28,609 INFO L85 PathProgramCache]: Analyzing trace with hash 133657771, now seen corresponding path program 1 times [2022-04-18 16:33:28,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:28,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665043169] [2022-04-18 16:33:28,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:28,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:28,719 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 16:33:28,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:28,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665043169] [2022-04-18 16:33:28,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665043169] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:28,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:28,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:28,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206654501] [2022-04-18 16:33:28,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:28,727 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:28,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:28,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:28,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:28,771 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 209 [2022-04-18 16:33:28,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 182 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 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 16:33:28,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:28,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 209 [2022-04-18 16:33:28,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:28,928 INFO L129 PetriNetUnfolder]: 42/391 cut-off events. [2022-04-18 16:33:28,929 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-04-18 16:33:28,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 391 events. 42/391 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1502 event pairs, 21 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 306. Up to 58 conditions per place. [2022-04-18 16:33:28,939 INFO L132 encePairwiseOnDemand]: 206/209 looper letters, 15 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2022-04-18 16:33:28,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 181 transitions, 414 flow [2022-04-18 16:33:28,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:28,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2022-04-18 16:33:28,955 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9330143540669856 [2022-04-18 16:33:28,956 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 585 transitions. [2022-04-18 16:33:28,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 585 transitions. [2022-04-18 16:33:28,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:28,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 585 transitions. [2022-04-18 16:33:28,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 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 16:33:28,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:28,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:28,979 INFO L186 Difference]: Start difference. First operand has 185 places, 182 transitions, 382 flow. Second operand 3 states and 585 transitions. [2022-04-18 16:33:28,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 181 transitions, 414 flow [2022-04-18 16:33:28,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 181 transitions, 402 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:33:28,985 INFO L242 Difference]: Finished difference. Result has 180 places, 181 transitions, 372 flow [2022-04-18 16:33:28,986 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=180, PETRI_TRANSITIONS=181} [2022-04-18 16:33:28,989 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -5 predicate places. [2022-04-18 16:33:28,989 INFO L478 AbstractCegarLoop]: Abstraction has has 180 places, 181 transitions, 372 flow [2022-04-18 16:33:28,989 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 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 16:33:28,989 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:28,990 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] [2022-04-18 16:33:28,990 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:33:28,990 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:28,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:28,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1714525341, now seen corresponding path program 1 times [2022-04-18 16:33:28,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:28,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13561824] [2022-04-18 16:33:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:28,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:29,021 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 16:33:29,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:29,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13561824] [2022-04-18 16:33:29,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13561824] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:29,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:29,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:29,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147550061] [2022-04-18 16:33:29,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:29,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:29,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:29,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:29,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:29,025 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 209 [2022-04-18 16:33:29,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 181 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 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 16:33:29,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:29,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 209 [2022-04-18 16:33:29,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:29,108 INFO L129 PetriNetUnfolder]: 116/711 cut-off events. [2022-04-18 16:33:29,108 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:33:29,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 711 events. 116/711 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4568 event pairs, 72 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 868. Up to 148 conditions per place. [2022-04-18 16:33:29,116 INFO L132 encePairwiseOnDemand]: 206/209 looper letters, 18 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2022-04-18 16:33:29,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 180 transitions, 410 flow [2022-04-18 16:33:29,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions. [2022-04-18 16:33:29,118 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9234449760765551 [2022-04-18 16:33:29,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions. [2022-04-18 16:33:29,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions. [2022-04-18 16:33:29,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:29,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions. [2022-04-18 16:33:29,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 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 16:33:29,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,123 INFO L186 Difference]: Start difference. First operand has 180 places, 181 transitions, 372 flow. Second operand 3 states and 579 transitions. [2022-04-18 16:33:29,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 180 transitions, 410 flow [2022-04-18 16:33:29,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 180 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:29,131 INFO L242 Difference]: Finished difference. Result has 179 places, 180 transitions, 370 flow [2022-04-18 16:33:29,132 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=179, PETRI_TRANSITIONS=180} [2022-04-18 16:33:29,133 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -6 predicate places. [2022-04-18 16:33:29,133 INFO L478 AbstractCegarLoop]: Abstraction has has 179 places, 180 transitions, 370 flow [2022-04-18 16:33:29,133 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 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 16:33:29,133 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:29,134 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 16:33:29,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:33:29,134 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:29,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:29,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1558953178, now seen corresponding path program 1 times [2022-04-18 16:33:29,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:29,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670296929] [2022-04-18 16:33:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:29,201 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 16:33:29,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:29,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670296929] [2022-04-18 16:33:29,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670296929] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:29,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:29,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:29,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025792800] [2022-04-18 16:33:29,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:29,204 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:29,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:29,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:29,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:29,206 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 209 [2022-04-18 16:33:29,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 180 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 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 16:33:29,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:29,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 209 [2022-04-18 16:33:29,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:29,303 INFO L129 PetriNetUnfolder]: 173/713 cut-off events. [2022-04-18 16:33:29,303 INFO L130 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-04-18 16:33:29,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 713 events. 173/713 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4342 event pairs, 132 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 939. Up to 250 conditions per place. [2022-04-18 16:33:29,313 INFO L132 encePairwiseOnDemand]: 206/209 looper letters, 21 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2022-04-18 16:33:29,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 179 transitions, 414 flow [2022-04-18 16:33:29,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:29,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2022-04-18 16:33:29,315 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9138755980861244 [2022-04-18 16:33:29,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2022-04-18 16:33:29,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2022-04-18 16:33:29,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:29,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2022-04-18 16:33:29,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 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 16:33:29,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,319 INFO L186 Difference]: Start difference. First operand has 179 places, 180 transitions, 370 flow. Second operand 3 states and 573 transitions. [2022-04-18 16:33:29,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 179 transitions, 414 flow [2022-04-18 16:33:29,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 179 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:29,324 INFO L242 Difference]: Finished difference. Result has 178 places, 179 transitions, 368 flow [2022-04-18 16:33:29,324 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=178, PETRI_TRANSITIONS=179} [2022-04-18 16:33:29,326 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -7 predicate places. [2022-04-18 16:33:29,326 INFO L478 AbstractCegarLoop]: Abstraction has has 178 places, 179 transitions, 368 flow [2022-04-18 16:33:29,327 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 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 16:33:29,327 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:29,327 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] [2022-04-18 16:33:29,327 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:33:29,327 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:29,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:29,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1242858789, now seen corresponding path program 1 times [2022-04-18 16:33:29,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:29,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534271490] [2022-04-18 16:33:29,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:29,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:29,388 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 16:33:29,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:29,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534271490] [2022-04-18 16:33:29,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534271490] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:29,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:29,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:29,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904615550] [2022-04-18 16:33:29,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:29,391 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:29,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:29,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:29,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:29,395 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 209 [2022-04-18 16:33:29,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 179 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 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 16:33:29,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:29,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 209 [2022-04-18 16:33:29,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:29,471 INFO L129 PetriNetUnfolder]: 31/345 cut-off events. [2022-04-18 16:33:29,472 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 16:33:29,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 345 events. 31/345 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1204 event pairs, 6 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 347. Up to 31 conditions per place. [2022-04-18 16:33:29,476 INFO L132 encePairwiseOnDemand]: 205/209 looper letters, 14 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2022-04-18 16:33:29,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 181 transitions, 406 flow [2022-04-18 16:33:29,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:29,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:29,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2022-04-18 16:33:29,478 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9473684210526315 [2022-04-18 16:33:29,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 594 transitions. [2022-04-18 16:33:29,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 594 transitions. [2022-04-18 16:33:29,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:29,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 594 transitions. [2022-04-18 16:33:29,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 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 16:33:29,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,484 INFO L186 Difference]: Start difference. First operand has 178 places, 179 transitions, 368 flow. Second operand 3 states and 594 transitions. [2022-04-18 16:33:29,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 181 transitions, 406 flow [2022-04-18 16:33:29,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 181 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:29,487 INFO L242 Difference]: Finished difference. Result has 177 places, 179 transitions, 374 flow [2022-04-18 16:33:29,487 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=177, PETRI_TRANSITIONS=179} [2022-04-18 16:33:29,491 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -8 predicate places. [2022-04-18 16:33:29,491 INFO L478 AbstractCegarLoop]: Abstraction has has 177 places, 179 transitions, 374 flow [2022-04-18 16:33:29,492 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 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 16:33:29,492 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:29,492 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] [2022-04-18 16:33:29,492 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:33:29,492 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:29,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:29,493 INFO L85 PathProgramCache]: Analyzing trace with hash 386403399, now seen corresponding path program 1 times [2022-04-18 16:33:29,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:29,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754719374] [2022-04-18 16:33:29,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:29,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:29,535 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 16:33:29,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:29,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754719374] [2022-04-18 16:33:29,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754719374] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:29,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:29,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:29,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769491113] [2022-04-18 16:33:29,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:29,536 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:29,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:29,537 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 209 [2022-04-18 16:33:29,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 179 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 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 16:33:29,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:29,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 209 [2022-04-18 16:33:29,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:29,584 INFO L129 PetriNetUnfolder]: 70/541 cut-off events. [2022-04-18 16:33:29,585 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:33:29,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 541 events. 70/541 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3021 event pairs, 14 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 566. Up to 73 conditions per place. [2022-04-18 16:33:29,590 INFO L132 encePairwiseOnDemand]: 204/209 looper letters, 16 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2022-04-18 16:33:29,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 180 transitions, 414 flow [2022-04-18 16:33:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:29,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2022-04-18 16:33:29,592 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.937799043062201 [2022-04-18 16:33:29,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 588 transitions. [2022-04-18 16:33:29,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 588 transitions. [2022-04-18 16:33:29,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:29,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 588 transitions. [2022-04-18 16:33:29,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 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 16:33:29,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,595 INFO L186 Difference]: Start difference. First operand has 177 places, 179 transitions, 374 flow. Second operand 3 states and 588 transitions. [2022-04-18 16:33:29,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 180 transitions, 414 flow [2022-04-18 16:33:29,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 180 transitions, 414 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:29,598 INFO L242 Difference]: Finished difference. Result has 177 places, 178 transitions, 382 flow [2022-04-18 16:33:29,599 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=177, PETRI_TRANSITIONS=178} [2022-04-18 16:33:29,600 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -8 predicate places. [2022-04-18 16:33:29,600 INFO L478 AbstractCegarLoop]: Abstraction has has 177 places, 178 transitions, 382 flow [2022-04-18 16:33:29,601 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 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 16:33:29,601 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:29,601 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] [2022-04-18 16:33:29,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:33:29,602 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:29,602 INFO L85 PathProgramCache]: Analyzing trace with hash -859770593, now seen corresponding path program 1 times [2022-04-18 16:33:29,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:29,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665273630] [2022-04-18 16:33:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:29,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:29,650 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 16:33:29,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:29,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665273630] [2022-04-18 16:33:29,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665273630] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:29,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:29,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:29,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778320283] [2022-04-18 16:33:29,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:29,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:29,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:29,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:29,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:29,653 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 209 [2022-04-18 16:33:29,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 178 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 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 16:33:29,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:29,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 209 [2022-04-18 16:33:29,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:29,730 INFO L129 PetriNetUnfolder]: 161/836 cut-off events. [2022-04-18 16:33:29,730 INFO L130 PetriNetUnfolder]: For 31/46 co-relation queries the response was YES. [2022-04-18 16:33:29,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 836 events. 161/836 cut-off events. For 31/46 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5521 event pairs, 52 based on Foata normal form. 0/724 useless extension candidates. Maximal degree in co-relation 831. Up to 202 conditions per place. [2022-04-18 16:33:29,737 INFO L132 encePairwiseOnDemand]: 203/209 looper letters, 18 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2022-04-18 16:33:29,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 178 transitions, 424 flow [2022-04-18 16:33:29,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-04-18 16:33:29,739 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9282296650717703 [2022-04-18 16:33:29,739 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-04-18 16:33:29,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-04-18 16:33:29,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:29,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-04-18 16:33:29,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 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 16:33:29,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,742 INFO L186 Difference]: Start difference. First operand has 177 places, 178 transitions, 382 flow. Second operand 3 states and 582 transitions. [2022-04-18 16:33:29,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 178 transitions, 424 flow [2022-04-18 16:33:29,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 178 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:29,746 INFO L242 Difference]: Finished difference. Result has 176 places, 176 transitions, 388 flow [2022-04-18 16:33:29,746 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=176, PETRI_TRANSITIONS=176} [2022-04-18 16:33:29,748 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -9 predicate places. [2022-04-18 16:33:29,748 INFO L478 AbstractCegarLoop]: Abstraction has has 176 places, 176 transitions, 388 flow [2022-04-18 16:33:29,749 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 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 16:33:29,749 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:29,749 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] [2022-04-18 16:33:29,749 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:33:29,749 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:29,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:29,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2134917808, now seen corresponding path program 1 times [2022-04-18 16:33:29,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:29,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893217266] [2022-04-18 16:33:29,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:29,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:29,809 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 16:33:29,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:29,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893217266] [2022-04-18 16:33:29,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893217266] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:29,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:29,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:29,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825559791] [2022-04-18 16:33:29,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:29,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:29,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:29,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:29,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:29,814 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 209 [2022-04-18 16:33:29,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 176 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 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 16:33:29,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:29,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 209 [2022-04-18 16:33:29,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:29,863 INFO L129 PetriNetUnfolder]: 37/397 cut-off events. [2022-04-18 16:33:29,864 INFO L130 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-04-18 16:33:29,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 397 events. 37/397 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1833 event pairs, 4 based on Foata normal form. 1/355 useless extension candidates. Maximal degree in co-relation 368. Up to 20 conditions per place. [2022-04-18 16:33:29,866 INFO L132 encePairwiseOnDemand]: 206/209 looper letters, 13 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2022-04-18 16:33:29,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 177 transitions, 422 flow [2022-04-18 16:33:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2022-04-18 16:33:29,868 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.94896331738437 [2022-04-18 16:33:29,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 595 transitions. [2022-04-18 16:33:29,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 595 transitions. [2022-04-18 16:33:29,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:29,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 595 transitions. [2022-04-18 16:33:29,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:29,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,871 INFO L186 Difference]: Start difference. First operand has 176 places, 176 transitions, 388 flow. Second operand 3 states and 595 transitions. [2022-04-18 16:33:29,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 177 transitions, 422 flow [2022-04-18 16:33:29,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 177 transitions, 422 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:29,874 INFO L242 Difference]: Finished difference. Result has 177 places, 175 transitions, 390 flow [2022-04-18 16:33:29,874 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=177, PETRI_TRANSITIONS=175} [2022-04-18 16:33:29,875 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -8 predicate places. [2022-04-18 16:33:29,875 INFO L478 AbstractCegarLoop]: Abstraction has has 177 places, 175 transitions, 390 flow [2022-04-18 16:33:29,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 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 16:33:29,875 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:29,875 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] [2022-04-18 16:33:29,875 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:33:29,876 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:29,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:29,876 INFO L85 PathProgramCache]: Analyzing trace with hash -350510520, now seen corresponding path program 1 times [2022-04-18 16:33:29,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:29,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587813560] [2022-04-18 16:33:29,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:29,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:29,911 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 16:33:29,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:29,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587813560] [2022-04-18 16:33:29,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587813560] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:29,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:29,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:29,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271226289] [2022-04-18 16:33:29,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:29,913 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:29,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:29,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:29,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:29,914 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 209 [2022-04-18 16:33:29,914 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 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 16:33:29,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:29,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 209 [2022-04-18 16:33:29,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:29,961 INFO L129 PetriNetUnfolder]: 41/421 cut-off events. [2022-04-18 16:33:29,962 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-04-18 16:33:29,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 421 events. 41/421 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2027 event pairs, 6 based on Foata normal form. 1/377 useless extension candidates. Maximal degree in co-relation 432. Up to 26 conditions per place. [2022-04-18 16:33:29,965 INFO L132 encePairwiseOnDemand]: 206/209 looper letters, 13 selfloop transitions, 2 changer transitions 0/176 dead transitions. [2022-04-18 16:33:29,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 176 transitions, 424 flow [2022-04-18 16:33:29,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:29,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2022-04-18 16:33:29,967 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.94896331738437 [2022-04-18 16:33:29,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 595 transitions. [2022-04-18 16:33:29,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 595 transitions. [2022-04-18 16:33:29,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:29,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 595 transitions. [2022-04-18 16:33:29,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:29,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:29,970 INFO L186 Difference]: Start difference. First operand has 177 places, 175 transitions, 390 flow. Second operand 3 states and 595 transitions. [2022-04-18 16:33:29,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 176 transitions, 424 flow [2022-04-18 16:33:29,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 176 transitions, 420 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:29,972 INFO L242 Difference]: Finished difference. Result has 176 places, 174 transitions, 388 flow [2022-04-18 16:33:29,973 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=176, PETRI_TRANSITIONS=174} [2022-04-18 16:33:29,974 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -9 predicate places. [2022-04-18 16:33:29,974 INFO L478 AbstractCegarLoop]: Abstraction has has 176 places, 174 transitions, 388 flow [2022-04-18 16:33:29,975 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 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 16:33:29,975 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:29,975 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] [2022-04-18 16:33:29,975 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:33:29,975 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash 70206970, now seen corresponding path program 1 times [2022-04-18 16:33:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:29,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859162237] [2022-04-18 16:33:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:29,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:30,089 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 16:33:30,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:30,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859162237] [2022-04-18 16:33:30,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859162237] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:30,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:30,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:30,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443786646] [2022-04-18 16:33:30,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:30,091 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:30,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:30,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:30,092 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 209 [2022-04-18 16:33:30,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 174 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 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 16:33:30,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:30,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 209 [2022-04-18 16:33:30,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:30,158 INFO L129 PetriNetUnfolder]: 22/285 cut-off events. [2022-04-18 16:33:30,158 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:30,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 285 events. 22/285 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 984 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 294. Up to 17 conditions per place. [2022-04-18 16:33:30,161 INFO L132 encePairwiseOnDemand]: 204/209 looper letters, 23 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2022-04-18 16:33:30,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 173 transitions, 440 flow [2022-04-18 16:33:30,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:30,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1090 transitions. [2022-04-18 16:33:30,164 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8692185007974481 [2022-04-18 16:33:30,164 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1090 transitions. [2022-04-18 16:33:30,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1090 transitions. [2022-04-18 16:33:30,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:30,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1090 transitions. [2022-04-18 16:33:30,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.66666666666666) internal successors, (1090), 6 states have internal predecessors, (1090), 0 states have call successors, (0), 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 16:33:30,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 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 16:33:30,168 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 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 16:33:30,168 INFO L186 Difference]: Start difference. First operand has 176 places, 174 transitions, 388 flow. Second operand 6 states and 1090 transitions. [2022-04-18 16:33:30,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 173 transitions, 440 flow [2022-04-18 16:33:30,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 173 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:30,172 INFO L242 Difference]: Finished difference. Result has 178 places, 173 transitions, 390 flow [2022-04-18 16:33:30,172 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=390, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2022-04-18 16:33:30,173 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -7 predicate places. [2022-04-18 16:33:30,173 INFO L478 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 390 flow [2022-04-18 16:33:30,174 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 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 16:33:30,175 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:30,175 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] [2022-04-18 16:33:30,175 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:33:30,175 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:30,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:30,176 INFO L85 PathProgramCache]: Analyzing trace with hash -571537540, now seen corresponding path program 1 times [2022-04-18 16:33:30,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:30,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692991123] [2022-04-18 16:33:30,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:30,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:30,210 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 16:33:30,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:30,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692991123] [2022-04-18 16:33:30,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692991123] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:30,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:30,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:30,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139137213] [2022-04-18 16:33:30,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:30,213 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:30,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:30,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:30,215 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 209 [2022-04-18 16:33:30,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 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 16:33:30,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:30,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 209 [2022-04-18 16:33:30,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:30,248 INFO L129 PetriNetUnfolder]: 34/316 cut-off events. [2022-04-18 16:33:30,249 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-04-18 16:33:30,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 316 events. 34/316 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1270 event pairs, 6 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 329. Up to 31 conditions per place. [2022-04-18 16:33:30,251 INFO L132 encePairwiseOnDemand]: 206/209 looper letters, 12 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2022-04-18 16:33:30,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 174 transitions, 422 flow [2022-04-18 16:33:30,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2022-04-18 16:33:30,253 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9473684210526315 [2022-04-18 16:33:30,253 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 594 transitions. [2022-04-18 16:33:30,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 594 transitions. [2022-04-18 16:33:30,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:30,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 594 transitions. [2022-04-18 16:33:30,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 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 16:33:30,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:30,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:30,256 INFO L186 Difference]: Start difference. First operand has 178 places, 173 transitions, 390 flow. Second operand 3 states and 594 transitions. [2022-04-18 16:33:30,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 174 transitions, 422 flow [2022-04-18 16:33:30,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 174 transitions, 415 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:30,261 INFO L242 Difference]: Finished difference. Result has 175 places, 172 transitions, 385 flow [2022-04-18 16:33:30,262 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=175, PETRI_TRANSITIONS=172} [2022-04-18 16:33:30,262 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -10 predicate places. [2022-04-18 16:33:30,263 INFO L478 AbstractCegarLoop]: Abstraction has has 175 places, 172 transitions, 385 flow [2022-04-18 16:33:30,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 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 16:33:30,263 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:30,263 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 16:33:30,263 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:33:30,264 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:30,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:30,264 INFO L85 PathProgramCache]: Analyzing trace with hash 377872908, now seen corresponding path program 1 times [2022-04-18 16:33:30,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:30,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097639306] [2022-04-18 16:33:30,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:30,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:30,360 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 16:33:30,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:30,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097639306] [2022-04-18 16:33:30,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097639306] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:30,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:30,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160006229] [2022-04-18 16:33:30,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:30,361 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:30,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:30,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:30,363 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 209 [2022-04-18 16:33:30,364 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 172 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 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 16:33:30,364 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:30,364 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 209 [2022-04-18 16:33:30,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:30,423 INFO L129 PetriNetUnfolder]: 22/279 cut-off events. [2022-04-18 16:33:30,424 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:30,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 279 events. 22/279 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 939 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 283. Up to 14 conditions per place. [2022-04-18 16:33:30,426 INFO L132 encePairwiseOnDemand]: 204/209 looper letters, 22 selfloop transitions, 4 changer transitions 0/171 dead transitions. [2022-04-18 16:33:30,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 171 transitions, 435 flow [2022-04-18 16:33:30,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:30,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:30,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2022-04-18 16:33:30,428 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2022-04-18 16:33:30,428 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1089 transitions. [2022-04-18 16:33:30,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1089 transitions. [2022-04-18 16:33:30,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:30,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1089 transitions. [2022-04-18 16:33:30,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 0 states have call successors, (0), 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 16:33:30,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 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 16:33:30,433 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 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 16:33:30,433 INFO L186 Difference]: Start difference. First operand has 175 places, 172 transitions, 385 flow. Second operand 6 states and 1089 transitions. [2022-04-18 16:33:30,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 171 transitions, 435 flow [2022-04-18 16:33:30,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 171 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:30,435 INFO L242 Difference]: Finished difference. Result has 177 places, 171 transitions, 387 flow [2022-04-18 16:33:30,436 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=177, PETRI_TRANSITIONS=171} [2022-04-18 16:33:30,436 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -8 predicate places. [2022-04-18 16:33:30,436 INFO L478 AbstractCegarLoop]: Abstraction has has 177 places, 171 transitions, 387 flow [2022-04-18 16:33:30,437 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 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 16:33:30,437 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:30,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:30,437 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:33:30,437 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:30,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:30,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1810483060, now seen corresponding path program 1 times [2022-04-18 16:33:30,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:30,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634546975] [2022-04-18 16:33:30,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:30,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:30,531 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 16:33:30,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:30,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634546975] [2022-04-18 16:33:30,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634546975] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:30,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:30,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:30,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678196663] [2022-04-18 16:33:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:30,533 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:30,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:30,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:30,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:30,534 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 209 [2022-04-18 16:33:30,535 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 171 transitions, 387 flow. Second operand has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 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 16:33:30,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:30,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 209 [2022-04-18 16:33:30,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:30,586 INFO L129 PetriNetUnfolder]: 22/278 cut-off events. [2022-04-18 16:33:30,586 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 16:33:30,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 278 events. 22/278 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 936 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 291. Up to 20 conditions per place. [2022-04-18 16:33:30,589 INFO L132 encePairwiseOnDemand]: 204/209 looper letters, 21 selfloop transitions, 4 changer transitions 0/170 dead transitions. [2022-04-18 16:33:30,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 170 transitions, 435 flow [2022-04-18 16:33:30,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1088 transitions. [2022-04-18 16:33:30,591 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8676236044657097 [2022-04-18 16:33:30,591 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1088 transitions. [2022-04-18 16:33:30,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1088 transitions. [2022-04-18 16:33:30,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:30,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1088 transitions. [2022-04-18 16:33:30,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 0 states have call successors, (0), 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 16:33:30,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 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 16:33:30,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 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 16:33:30,596 INFO L186 Difference]: Start difference. First operand has 177 places, 171 transitions, 387 flow. Second operand 6 states and 1088 transitions. [2022-04-18 16:33:30,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 170 transitions, 435 flow [2022-04-18 16:33:30,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 170 transitions, 428 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:30,598 INFO L242 Difference]: Finished difference. Result has 177 places, 170 transitions, 386 flow [2022-04-18 16:33:30,599 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=177, PETRI_TRANSITIONS=170} [2022-04-18 16:33:30,599 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -8 predicate places. [2022-04-18 16:33:30,599 INFO L478 AbstractCegarLoop]: Abstraction has has 177 places, 170 transitions, 386 flow [2022-04-18 16:33:30,600 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.0) internal successors, (1086), 6 states have internal predecessors, (1086), 0 states have call successors, (0), 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 16:33:30,600 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:30,600 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, 1, 1, 1, 1, 1, 1, 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 16:33:30,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:33:30,600 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:30,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1311501923, now seen corresponding path program 1 times [2022-04-18 16:33:30,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:30,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317376989] [2022-04-18 16:33:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:30,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:30,633 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 16:33:30,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:30,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317376989] [2022-04-18 16:33:30,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317376989] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:30,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:30,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:30,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354037388] [2022-04-18 16:33:30,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:30,634 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:30,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:30,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:30,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:30,635 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 209 [2022-04-18 16:33:30,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 170 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:30,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:30,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 209 [2022-04-18 16:33:30,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:30,668 INFO L129 PetriNetUnfolder]: 33/376 cut-off events. [2022-04-18 16:33:30,668 INFO L130 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2022-04-18 16:33:30,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 376 events. 33/376 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1628 event pairs, 4 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 415. Up to 17 conditions per place. [2022-04-18 16:33:30,671 INFO L132 encePairwiseOnDemand]: 207/209 looper letters, 9 selfloop transitions, 1 changer transitions 0/169 dead transitions. [2022-04-18 16:33:30,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 169 transitions, 404 flow [2022-04-18 16:33:30,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:30,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:30,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2022-04-18 16:33:30,673 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9505582137161085 [2022-04-18 16:33:30,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2022-04-18 16:33:30,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2022-04-18 16:33:30,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:30,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2022-04-18 16:33:30,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 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 16:33:30,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:30,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:30,676 INFO L186 Difference]: Start difference. First operand has 177 places, 170 transitions, 386 flow. Second operand 3 states and 596 transitions. [2022-04-18 16:33:30,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 169 transitions, 404 flow [2022-04-18 16:33:30,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 169 transitions, 397 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:30,679 INFO L242 Difference]: Finished difference. Result has 174 places, 169 transitions, 379 flow [2022-04-18 16:33:30,679 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=174, PETRI_TRANSITIONS=169} [2022-04-18 16:33:30,679 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -11 predicate places. [2022-04-18 16:33:30,680 INFO L478 AbstractCegarLoop]: Abstraction has has 174 places, 169 transitions, 379 flow [2022-04-18 16:33:30,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:30,680 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:30,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:30,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:33:30,680 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:30,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:30,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1944546622, now seen corresponding path program 1 times [2022-04-18 16:33:30,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:30,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339362669] [2022-04-18 16:33:30,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:30,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:30,715 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 16:33:30,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:30,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339362669] [2022-04-18 16:33:30,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339362669] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:30,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:30,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:30,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403180384] [2022-04-18 16:33:30,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:30,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:30,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:30,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:30,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:30,718 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 209 [2022-04-18 16:33:30,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 169 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:30,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:30,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 209 [2022-04-18 16:33:30,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:30,763 INFO L129 PetriNetUnfolder]: 34/400 cut-off events. [2022-04-18 16:33:30,763 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-04-18 16:33:30,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 400 events. 34/400 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1731 event pairs, 6 based on Foata normal form. 0/372 useless extension candidates. Maximal degree in co-relation 453. Up to 23 conditions per place. [2022-04-18 16:33:30,766 INFO L132 encePairwiseOnDemand]: 207/209 looper letters, 9 selfloop transitions, 1 changer transitions 0/168 dead transitions. [2022-04-18 16:33:30,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 168 transitions, 397 flow [2022-04-18 16:33:30,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:30,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2022-04-18 16:33:30,768 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9505582137161085 [2022-04-18 16:33:30,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2022-04-18 16:33:30,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2022-04-18 16:33:30,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:30,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2022-04-18 16:33:30,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 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 16:33:30,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:30,771 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:30,771 INFO L186 Difference]: Start difference. First operand has 174 places, 169 transitions, 379 flow. Second operand 3 states and 596 transitions. [2022-04-18 16:33:30,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 168 transitions, 397 flow [2022-04-18 16:33:30,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 168 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:30,773 INFO L242 Difference]: Finished difference. Result has 174 places, 168 transitions, 378 flow [2022-04-18 16:33:30,773 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=174, PETRI_TRANSITIONS=168} [2022-04-18 16:33:30,774 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -11 predicate places. [2022-04-18 16:33:30,774 INFO L478 AbstractCegarLoop]: Abstraction has has 174 places, 168 transitions, 378 flow [2022-04-18 16:33:30,774 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:30,774 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:30,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:30,775 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:33:30,775 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 16:33:30,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:30,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1962352113, now seen corresponding path program 1 times [2022-04-18 16:33:30,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:30,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654105667] [2022-04-18 16:33:30,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:30,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:30,808 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 16:33:30,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:30,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654105667] [2022-04-18 16:33:30,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654105667] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:30,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:30,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:30,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074141878] [2022-04-18 16:33:30,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:30,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:30,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:30,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:30,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:30,811 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 209 [2022-04-18 16:33:30,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 168 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:30,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:30,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 209 [2022-04-18 16:33:30,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:30,838 INFO L129 PetriNetUnfolder]: 27/305 cut-off events. [2022-04-18 16:33:30,838 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-04-18 16:33:30,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 305 events. 27/305 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1129 event pairs, 6 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 361. Up to 29 conditions per place. [2022-04-18 16:33:30,840 INFO L132 encePairwiseOnDemand]: 207/209 looper letters, 0 selfloop transitions, 0 changer transitions 167/167 dead transitions. [2022-04-18 16:33:30,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 167 transitions, 394 flow [2022-04-18 16:33:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:30,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:30,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2022-04-18 16:33:30,841 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.94896331738437 [2022-04-18 16:33:30,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 595 transitions. [2022-04-18 16:33:30,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 595 transitions. [2022-04-18 16:33:30,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:30,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 595 transitions. [2022-04-18 16:33:30,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:30,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:30,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 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 16:33:30,844 INFO L186 Difference]: Start difference. First operand has 174 places, 168 transitions, 378 flow. Second operand 3 states and 595 transitions. [2022-04-18 16:33:30,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 167 transitions, 394 flow [2022-04-18 16:33:30,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 167 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:30,846 INFO L242 Difference]: Finished difference. Result has 174 places, 0 transitions, 0 flow [2022-04-18 16:33:30,846 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=174, PETRI_TRANSITIONS=0} [2022-04-18 16:33:30,846 INFO L335 CegarLoopForPetriNet]: 185 programPoint places, -11 predicate places. [2022-04-18 16:33:30,846 INFO L478 AbstractCegarLoop]: Abstraction has has 174 places, 0 transitions, 0 flow [2022-04-18 16:33:30,847 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 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 16:33:30,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2022-04-18 16:33:30,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-04-18 16:33:30,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-04-18 16:33:30,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-04-18 16:33:30,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-04-18 16:33:30,849 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-04-18 16:33:30,850 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 36 remaining) [2022-04-18 16:33:30,851 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-04-18 16:33:30,852 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-04-18 16:33:30,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-04-18 16:33:30,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-04-18 16:33:30,853 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-04-18 16:33:30,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:33:30,855 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:30,858 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:33:30,858 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:33:30,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:33:30 BasicIcfg [2022-04-18 16:33:30,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:33:30,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:33:30,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:33:30,861 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:33:30,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:28" (3/4) ... [2022-04-18 16:33:30,863 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:33:30,866 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:33:30,866 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:33:30,866 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:33:30,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-04-18 16:33:30,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:33:30,869 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:33:30,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:33:30,890 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:33:30,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:33:30,890 INFO L158 Benchmark]: Toolchain (without parser) took 3183.10ms. Allocated memory was 134.2MB in the beginning and 251.7MB in the end (delta: 117.4MB). Free memory was 92.6MB in the beginning and 168.5MB in the end (delta: -75.9MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:30,891 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:33:30,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.71ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 105.4MB in the end (delta: -13.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-04-18 16:33:30,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.38ms. Allocated memory is still 134.2MB. Free memory was 105.4MB in the beginning and 103.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:30,891 INFO L158 Benchmark]: Boogie Preprocessor took 29.92ms. Allocated memory is still 134.2MB. Free memory was 103.9MB in the beginning and 102.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:30,891 INFO L158 Benchmark]: RCFGBuilder took 375.97ms. Allocated memory is still 134.2MB. Free memory was 102.3MB in the beginning and 85.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-04-18 16:33:30,892 INFO L158 Benchmark]: TraceAbstraction took 2523.74ms. Allocated memory was 134.2MB in the beginning and 251.7MB in the end (delta: 117.4MB). Free memory was 85.0MB in the beginning and 172.7MB in the end (delta: -87.7MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-04-18 16:33:30,892 INFO L158 Benchmark]: Witness Printer took 29.48ms. Allocated memory is still 251.7MB. Free memory was 172.7MB in the beginning and 168.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:30,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 109.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.71ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 105.4MB in the end (delta: -13.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.38ms. Allocated memory is still 134.2MB. Free memory was 105.4MB in the beginning and 103.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.92ms. Allocated memory is still 134.2MB. Free memory was 103.9MB in the beginning and 102.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.97ms. Allocated memory is still 134.2MB. Free memory was 102.3MB in the beginning and 85.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2523.74ms. Allocated memory was 134.2MB in the beginning and 251.7MB in the end (delta: 117.4MB). Free memory was 85.0MB in the beginning and 172.7MB in the end (delta: -87.7MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Witness Printer took 29.48ms. Allocated memory is still 251.7MB. Free memory was 172.7MB in the beginning and 168.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. 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: 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: 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: 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: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: 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 7 procedures, 282 locations, 36 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: 2.4s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 373 IncrementalHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 116 mSDtfsCounter, 373 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=390occurred in iteration=7, InterpolantAutomatonStates: 54, 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, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1067 NumberOfCodeBlocks, 1067 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1052 ConstructedInterpolants, 0 QuantifiedInterpolants, 1319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:33:30,918 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