./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-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-word-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 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:33:39,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:33:39,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:33:40,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:33:40,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:33:40,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:33:40,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:33:40,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:33:40,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:33:40,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:33:40,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:33:40,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:33:40,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:33:40,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:33:40,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:33:40,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:33:40,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:33:40,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:33:40,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:33:40,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:33:40,040 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:33:40,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:33:40,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:33:40,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:33:40,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:33:40,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:33:40,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:33:40,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:33:40,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:33:40,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:33:40,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:33:40,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:33:40,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:33:40,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:33:40,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:33:40,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:33:40,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:33:40,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:33:40,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:33:40,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:33:40,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:33:40,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:33:40,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:33:40,083 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:33:40,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:33:40,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:33:40,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:33:40,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:33:40,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:33:40,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:33:40,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:33:40,085 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:33:40,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:33:40,086 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:33:40,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:33:40,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:33:40,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:33:40,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:33:40,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:33:40,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:33:40,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:33:40,087 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:33:40,088 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:33:40,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:33:40,089 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:33:40,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:33:40,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:33:40,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:33:40,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:33:40,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:40,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:33:40,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:33:40,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:33:40,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:33:40,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:33:40,091 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:33:40,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:33:40,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:33:40,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 [2022-04-18 16:33:40,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:33:40,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:33:40,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:33:40,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:33:40,301 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:33:40,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-trans.wvr.c [2022-04-18 16:33:40,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b1935b41/2567d4baaae8441bb2af2b68f5e3097b/FLAGd416411d5 [2022-04-18 16:33:40,634 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:33:40,635 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-trans.wvr.c [2022-04-18 16:33:40,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b1935b41/2567d4baaae8441bb2af2b68f5e3097b/FLAGd416411d5 [2022-04-18 16:33:41,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b1935b41/2567d4baaae8441bb2af2b68f5e3097b [2022-04-18 16:33:41,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:33:41,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:33:41,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:41,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:33:41,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:33:41,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ff9a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41, skipping insertion in model container [2022-04-18 16:33:41,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:33:41,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:33:41,274 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-word-trans.wvr.c[3292,3305] [2022-04-18 16:33:41,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:41,282 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:33:41,314 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-word-trans.wvr.c[3292,3305] [2022-04-18 16:33:41,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:41,326 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:33:41,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41 WrapperNode [2022-04-18 16:33:41,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:41,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:41,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:33:41,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:33:41,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,379 INFO L137 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 264 [2022-04-18 16:33:41,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:41,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:33:41,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:33:41,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:33:41,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:33:41,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:33:41,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:33:41,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:33:41,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (1/1) ... [2022-04-18 16:33:41,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:41,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:33:41,487 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 16:33:41,510 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 16:33:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:33:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:33:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:33:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:33:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:33:41,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:33:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:33:41,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:33:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:33:41,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:33:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:33:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:33:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:33:41,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:33:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:33:41,525 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 16:33:41,623 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:33:41,624 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:33:42,194 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:33:42,208 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:33:42,209 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-04-18 16:33:42,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:42 BoogieIcfgContainer [2022-04-18 16:33:42,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:33:42,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:33:42,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:33:42,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:33:42,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:33:41" (1/3) ... [2022-04-18 16:33:42,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3e5b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:42, skipping insertion in model container [2022-04-18 16:33:42,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:41" (2/3) ... [2022-04-18 16:33:42,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3e5b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:42, skipping insertion in model container [2022-04-18 16:33:42,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:42" (3/3) ... [2022-04-18 16:33:42,219 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2022-04-18 16:33:42,222 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:33:42,223 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:33:42,223 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-04-18 16:33:42,223 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:33:42,347 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:33:42,394 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:33:42,401 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 16:33:42,401 INFO L341 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2022-04-18 16:33:42,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 660 places, 689 transitions, 1402 flow [2022-04-18 16:33:42,633 INFO L129 PetriNetUnfolder]: 39/686 cut-off events. [2022-04-18 16:33:42,633 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:42,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 686 events. 39/686 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1915 event pairs, 0 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 501. Up to 3 conditions per place. [2022-04-18 16:33:42,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 660 places, 689 transitions, 1402 flow [2022-04-18 16:33:42,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 635 places, 662 transitions, 1342 flow [2022-04-18 16:33:42,662 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2022-04-18 16:33:42,663 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:42,663 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:42,664 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] [2022-04-18 16:33:42,664 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:42,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:42,668 INFO L85 PathProgramCache]: Analyzing trace with hash -626981728, now seen corresponding path program 1 times [2022-04-18 16:33:42,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:42,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038694774] [2022-04-18 16:33:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:42,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:42,832 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 16:33:42,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:42,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038694774] [2022-04-18 16:33:42,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038694774] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:42,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:42,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:42,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041959307] [2022-04-18 16:33:42,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:42,840 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:42,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:42,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:42,862 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-04-18 16:33:42,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 662 transitions, 1342 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:42,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:42,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-04-18 16:33:42,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:43,360 INFO L129 PetriNetUnfolder]: 162/2028 cut-off events. [2022-04-18 16:33:43,360 INFO L130 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-04-18 16:33:43,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2221 conditions, 2028 events. 162/2028 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 13867 event pairs, 60 based on Foata normal form. 83/1688 useless extension candidates. Maximal degree in co-relation 1640. Up to 142 conditions per place. [2022-04-18 16:33:43,437 INFO L132 encePairwiseOnDemand]: 674/689 looper letters, 21 selfloop transitions, 2 changer transitions 6/649 dead transitions. [2022-04-18 16:33:43,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 649 transitions, 1362 flow [2022-04-18 16:33:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1989 transitions. [2022-04-18 16:33:43,450 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9622641509433962 [2022-04-18 16:33:43,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1989 transitions. [2022-04-18 16:33:43,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1989 transitions. [2022-04-18 16:33:43,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:43,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1989 transitions. [2022-04-18 16:33:43,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 0 states have call successors, (0), 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 16:33:43,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:43,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:43,469 INFO L186 Difference]: Start difference. First operand has 635 places, 662 transitions, 1342 flow. Second operand 3 states and 1989 transitions. [2022-04-18 16:33:43,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 649 transitions, 1362 flow [2022-04-18 16:33:43,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 649 transitions, 1350 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:33:43,484 INFO L242 Difference]: Finished difference. Result has 630 places, 643 transitions, 1296 flow [2022-04-18 16:33:43,486 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1304, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=647, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1296, PETRI_PLACES=630, PETRI_TRANSITIONS=643} [2022-04-18 16:33:43,488 INFO L335 CegarLoopForPetriNet]: 635 programPoint places, -5 predicate places. [2022-04-18 16:33:43,488 INFO L478 AbstractCegarLoop]: Abstraction has has 630 places, 643 transitions, 1296 flow [2022-04-18 16:33:43,490 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:43,490 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:43,490 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] [2022-04-18 16:33:43,490 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:33:43,490 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:43,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1663645723, now seen corresponding path program 1 times [2022-04-18 16:33:43,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:43,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391151522] [2022-04-18 16:33:43,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:43,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:43,526 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 16:33:43,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:43,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391151522] [2022-04-18 16:33:43,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391151522] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:43,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:43,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:43,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880548001] [2022-04-18 16:33:43,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:43,528 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:43,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:43,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:43,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:43,531 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-04-18 16:33:43,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 643 transitions, 1296 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:43,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:43,533 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-04-18 16:33:43,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:43,994 INFO L129 PetriNetUnfolder]: 265/2491 cut-off events. [2022-04-18 16:33:43,994 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-04-18 16:33:44,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 2491 events. 265/2491 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 19615 event pairs, 132 based on Foata normal form. 0/1978 useless extension candidates. Maximal degree in co-relation 2770. Up to 256 conditions per place. [2022-04-18 16:33:44,066 INFO L132 encePairwiseOnDemand]: 686/689 looper letters, 21 selfloop transitions, 2 changer transitions 0/642 dead transitions. [2022-04-18 16:33:44,066 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 642 transitions, 1340 flow [2022-04-18 16:33:44,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1977 transitions. [2022-04-18 16:33:44,071 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9564586357039188 [2022-04-18 16:33:44,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1977 transitions. [2022-04-18 16:33:44,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1977 transitions. [2022-04-18 16:33:44,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:44,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1977 transitions. [2022-04-18 16:33:44,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.0) internal successors, (1977), 3 states have internal predecessors, (1977), 0 states have call successors, (0), 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 16:33:44,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:44,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:44,079 INFO L186 Difference]: Start difference. First operand has 630 places, 643 transitions, 1296 flow. Second operand 3 states and 1977 transitions. [2022-04-18 16:33:44,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 642 transitions, 1340 flow [2022-04-18 16:33:44,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 642 transitions, 1336 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:44,088 INFO L242 Difference]: Finished difference. Result has 623 places, 642 transitions, 1294 flow [2022-04-18 16:33:44,088 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=623, PETRI_TRANSITIONS=642} [2022-04-18 16:33:44,090 INFO L335 CegarLoopForPetriNet]: 635 programPoint places, -12 predicate places. [2022-04-18 16:33:44,091 INFO L478 AbstractCegarLoop]: Abstraction has has 623 places, 642 transitions, 1294 flow [2022-04-18 16:33:44,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:44,092 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:44,092 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] [2022-04-18 16:33:44,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:33:44,093 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:44,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:44,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1885668744, now seen corresponding path program 1 times [2022-04-18 16:33:44,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:44,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26766861] [2022-04-18 16:33:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:44,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:44,136 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 16:33:44,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:44,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26766861] [2022-04-18 16:33:44,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26766861] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:44,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:44,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:44,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227659957] [2022-04-18 16:33:44,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:44,138 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:44,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:44,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:44,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:44,141 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-04-18 16:33:44,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 642 transitions, 1294 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:44,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:44,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-04-18 16:33:44,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:44,603 INFO L129 PetriNetUnfolder]: 276/2739 cut-off events. [2022-04-18 16:33:44,604 INFO L130 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-04-18 16:33:44,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3004 conditions, 2739 events. 276/2739 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 21915 event pairs, 132 based on Foata normal form. 0/2175 useless extension candidates. Maximal degree in co-relation 2957. Up to 250 conditions per place. [2022-04-18 16:33:44,655 INFO L132 encePairwiseOnDemand]: 686/689 looper letters, 21 selfloop transitions, 2 changer transitions 0/641 dead transitions. [2022-04-18 16:33:44,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 641 transitions, 1338 flow [2022-04-18 16:33:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:44,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1977 transitions. [2022-04-18 16:33:44,659 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9564586357039188 [2022-04-18 16:33:44,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1977 transitions. [2022-04-18 16:33:44,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1977 transitions. [2022-04-18 16:33:44,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:44,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1977 transitions. [2022-04-18 16:33:44,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.0) internal successors, (1977), 3 states have internal predecessors, (1977), 0 states have call successors, (0), 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 16:33:44,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:44,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:44,668 INFO L186 Difference]: Start difference. First operand has 623 places, 642 transitions, 1294 flow. Second operand 3 states and 1977 transitions. [2022-04-18 16:33:44,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 641 transitions, 1338 flow [2022-04-18 16:33:44,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 641 transitions, 1334 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:44,677 INFO L242 Difference]: Finished difference. Result has 622 places, 641 transitions, 1292 flow [2022-04-18 16:33:44,678 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1292, PETRI_PLACES=622, PETRI_TRANSITIONS=641} [2022-04-18 16:33:44,680 INFO L335 CegarLoopForPetriNet]: 635 programPoint places, -13 predicate places. [2022-04-18 16:33:44,680 INFO L478 AbstractCegarLoop]: Abstraction has has 622 places, 641 transitions, 1292 flow [2022-04-18 16:33:44,681 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:44,681 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:44,682 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 16:33:44,682 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:33:44,682 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:44,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:44,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2026555040, now seen corresponding path program 1 times [2022-04-18 16:33:44,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:44,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246379409] [2022-04-18 16:33:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:44,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:44,747 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 16:33:44,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:44,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246379409] [2022-04-18 16:33:44,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246379409] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:44,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:44,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:44,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985098212] [2022-04-18 16:33:44,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:44,750 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:44,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:44,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:44,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:44,756 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 648 out of 689 [2022-04-18 16:33:44,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 641 transitions, 1292 flow. Second operand has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 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 16:33:44,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:44,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 648 of 689 [2022-04-18 16:33:44,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:45,137 INFO L129 PetriNetUnfolder]: 154/1909 cut-off events. [2022-04-18 16:33:45,137 INFO L130 PetriNetUnfolder]: For 15/21 co-relation queries the response was YES. [2022-04-18 16:33:45,164 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2090 conditions, 1909 events. 154/1909 cut-off events. For 15/21 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 12641 event pairs, 60 based on Foata normal form. 0/1538 useless extension candidates. Maximal degree in co-relation 2036. Up to 160 conditions per place. [2022-04-18 16:33:45,180 INFO L132 encePairwiseOnDemand]: 686/689 looper letters, 24 selfloop transitions, 2 changer transitions 0/640 dead transitions. [2022-04-18 16:33:45,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 623 places, 640 transitions, 1342 flow [2022-04-18 16:33:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1971 transitions. [2022-04-18 16:33:45,183 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.95355587808418 [2022-04-18 16:33:45,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1971 transitions. [2022-04-18 16:33:45,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1971 transitions. [2022-04-18 16:33:45,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:45,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1971 transitions. [2022-04-18 16:33:45,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 0 states have call successors, (0), 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 16:33:45,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:45,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:45,191 INFO L186 Difference]: Start difference. First operand has 622 places, 641 transitions, 1292 flow. Second operand 3 states and 1971 transitions. [2022-04-18 16:33:45,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 623 places, 640 transitions, 1342 flow [2022-04-18 16:33:45,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 640 transitions, 1338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:45,199 INFO L242 Difference]: Finished difference. Result has 621 places, 640 transitions, 1290 flow [2022-04-18 16:33:45,200 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1290, PETRI_PLACES=621, PETRI_TRANSITIONS=640} [2022-04-18 16:33:45,200 INFO L335 CegarLoopForPetriNet]: 635 programPoint places, -14 predicate places. [2022-04-18 16:33:45,201 INFO L478 AbstractCegarLoop]: Abstraction has has 621 places, 640 transitions, 1290 flow [2022-04-18 16:33:45,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 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 16:33:45,202 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:45,202 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] [2022-04-18 16:33:45,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:33:45,202 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:45,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:45,203 INFO L85 PathProgramCache]: Analyzing trace with hash 892884178, now seen corresponding path program 1 times [2022-04-18 16:33:45,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:45,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428047243] [2022-04-18 16:33:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:45,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:45,234 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 16:33:45,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:45,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428047243] [2022-04-18 16:33:45,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428047243] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:45,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:45,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:45,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127094608] [2022-04-18 16:33:45,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:45,235 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:45,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:45,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:45,238 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 648 out of 689 [2022-04-18 16:33:45,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 640 transitions, 1290 flow. Second operand has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 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 16:33:45,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:45,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 648 of 689 [2022-04-18 16:33:45,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:45,767 INFO L129 PetriNetUnfolder]: 304/2944 cut-off events. [2022-04-18 16:33:45,768 INFO L130 PetriNetUnfolder]: For 21/30 co-relation queries the response was YES. [2022-04-18 16:33:45,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3310 conditions, 2944 events. 304/2944 cut-off events. For 21/30 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 24728 event pairs, 132 based on Foata normal form. 0/2345 useless extension candidates. Maximal degree in co-relation 3249. Up to 303 conditions per place. [2022-04-18 16:33:45,809 INFO L132 encePairwiseOnDemand]: 686/689 looper letters, 24 selfloop transitions, 2 changer transitions 0/639 dead transitions. [2022-04-18 16:33:45,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 639 transitions, 1340 flow [2022-04-18 16:33:45,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1971 transitions. [2022-04-18 16:33:45,812 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.95355587808418 [2022-04-18 16:33:45,813 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1971 transitions. [2022-04-18 16:33:45,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1971 transitions. [2022-04-18 16:33:45,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:45,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1971 transitions. [2022-04-18 16:33:45,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 0 states have call successors, (0), 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 16:33:45,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:45,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:45,820 INFO L186 Difference]: Start difference. First operand has 621 places, 640 transitions, 1290 flow. Second operand 3 states and 1971 transitions. [2022-04-18 16:33:45,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 639 transitions, 1340 flow [2022-04-18 16:33:45,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 639 transitions, 1336 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:45,828 INFO L242 Difference]: Finished difference. Result has 620 places, 639 transitions, 1288 flow [2022-04-18 16:33:45,829 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1288, PETRI_PLACES=620, PETRI_TRANSITIONS=639} [2022-04-18 16:33:45,830 INFO L335 CegarLoopForPetriNet]: 635 programPoint places, -15 predicate places. [2022-04-18 16:33:45,830 INFO L478 AbstractCegarLoop]: Abstraction has has 620 places, 639 transitions, 1288 flow [2022-04-18 16:33:45,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 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 16:33:45,831 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:45,831 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] [2022-04-18 16:33:45,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:33:45,832 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:45,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:45,832 INFO L85 PathProgramCache]: Analyzing trace with hash -645340874, now seen corresponding path program 1 times [2022-04-18 16:33:45,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:45,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701398770] [2022-04-18 16:33:45,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:45,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:45,856 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 16:33:45,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:45,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701398770] [2022-04-18 16:33:45,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701398770] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:45,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:45,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:45,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143051119] [2022-04-18 16:33:45,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:45,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:45,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:45,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:45,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:45,860 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 648 out of 689 [2022-04-18 16:33:45,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 639 transitions, 1288 flow. Second operand has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 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 16:33:45,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:45,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 648 of 689 [2022-04-18 16:33:45,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:46,392 INFO L129 PetriNetUnfolder]: 301/2698 cut-off events. [2022-04-18 16:33:46,392 INFO L130 PetriNetUnfolder]: For 71/75 co-relation queries the response was YES. [2022-04-18 16:33:46,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3032 conditions, 2698 events. 301/2698 cut-off events. For 71/75 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20805 event pairs, 132 based on Foata normal form. 0/2168 useless extension candidates. Maximal degree in co-relation 2964. Up to 319 conditions per place. [2022-04-18 16:33:46,453 INFO L132 encePairwiseOnDemand]: 686/689 looper letters, 24 selfloop transitions, 2 changer transitions 0/638 dead transitions. [2022-04-18 16:33:46,454 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 638 transitions, 1338 flow [2022-04-18 16:33:46,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:46,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:46,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1971 transitions. [2022-04-18 16:33:46,457 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.95355587808418 [2022-04-18 16:33:46,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1971 transitions. [2022-04-18 16:33:46,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1971 transitions. [2022-04-18 16:33:46,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:46,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1971 transitions. [2022-04-18 16:33:46,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 657.0) internal successors, (1971), 3 states have internal predecessors, (1971), 0 states have call successors, (0), 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 16:33:46,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:46,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:46,465 INFO L186 Difference]: Start difference. First operand has 620 places, 639 transitions, 1288 flow. Second operand 3 states and 1971 transitions. [2022-04-18 16:33:46,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 638 transitions, 1338 flow [2022-04-18 16:33:46,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 638 transitions, 1334 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:46,473 INFO L242 Difference]: Finished difference. Result has 619 places, 638 transitions, 1286 flow [2022-04-18 16:33:46,474 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1286, PETRI_PLACES=619, PETRI_TRANSITIONS=638} [2022-04-18 16:33:46,475 INFO L335 CegarLoopForPetriNet]: 635 programPoint places, -16 predicate places. [2022-04-18 16:33:46,475 INFO L478 AbstractCegarLoop]: Abstraction has has 619 places, 638 transitions, 1286 flow [2022-04-18 16:33:46,476 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 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 16:33:46,476 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:46,476 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] [2022-04-18 16:33:46,476 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:33:46,476 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:46,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:46,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1034947257, now seen corresponding path program 1 times [2022-04-18 16:33:46,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:46,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255268019] [2022-04-18 16:33:46,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:46,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:46,528 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 16:33:46,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:46,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255268019] [2022-04-18 16:33:46,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255268019] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:46,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:46,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:46,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982544441] [2022-04-18 16:33:46,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:46,533 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:46,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:46,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:46,537 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-04-18 16:33:46,539 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 638 transitions, 1286 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:46,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:46,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-04-18 16:33:46,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:46,869 INFO L129 PetriNetUnfolder]: 114/1668 cut-off events. [2022-04-18 16:33:46,869 INFO L130 PetriNetUnfolder]: For 11/15 co-relation queries the response was YES. [2022-04-18 16:33:46,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 1668 events. 114/1668 cut-off events. For 11/15 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10281 event pairs, 32 based on Foata normal form. 0/1377 useless extension candidates. Maximal degree in co-relation 1701. Up to 91 conditions per place. [2022-04-18 16:33:46,891 INFO L132 encePairwiseOnDemand]: 683/689 looper letters, 17 selfloop transitions, 1 changer transitions 0/633 dead transitions. [2022-04-18 16:33:46,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 633 transitions, 1312 flow [2022-04-18 16:33:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:46,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:46,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1976 transitions. [2022-04-18 16:33:46,895 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9559748427672956 [2022-04-18 16:33:46,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1976 transitions. [2022-04-18 16:33:46,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1976 transitions. [2022-04-18 16:33:46,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:46,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1976 transitions. [2022-04-18 16:33:46,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 658.6666666666666) internal successors, (1976), 3 states have internal predecessors, (1976), 0 states have call successors, (0), 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 16:33:46,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:46,901 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:46,901 INFO L186 Difference]: Start difference. First operand has 619 places, 638 transitions, 1286 flow. Second operand 3 states and 1976 transitions. [2022-04-18 16:33:46,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 633 transitions, 1312 flow [2022-04-18 16:33:46,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 633 transitions, 1308 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:46,909 INFO L242 Difference]: Finished difference. Result has 614 places, 633 transitions, 1274 flow [2022-04-18 16:33:46,909 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1274, PETRI_PLACES=614, PETRI_TRANSITIONS=633} [2022-04-18 16:33:46,910 INFO L335 CegarLoopForPetriNet]: 635 programPoint places, -21 predicate places. [2022-04-18 16:33:46,910 INFO L478 AbstractCegarLoop]: Abstraction has has 614 places, 633 transitions, 1274 flow [2022-04-18 16:33:46,911 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:46,911 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:46,911 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] [2022-04-18 16:33:46,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:33:46,912 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:46,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1015846608, now seen corresponding path program 1 times [2022-04-18 16:33:46,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:46,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402674897] [2022-04-18 16:33:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:46,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:46,955 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 16:33:46,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:46,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402674897] [2022-04-18 16:33:46,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402674897] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:46,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:46,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:46,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849010738] [2022-04-18 16:33:46,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:46,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:46,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:46,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:46,959 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 651 out of 689 [2022-04-18 16:33:46,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 633 transitions, 1274 flow. Second operand has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:46,961 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:46,961 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 651 of 689 [2022-04-18 16:33:46,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:47,276 INFO L129 PetriNetUnfolder]: 169/1952 cut-off events. [2022-04-18 16:33:47,277 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-04-18 16:33:47,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2142 conditions, 1952 events. 169/1952 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12408 event pairs, 60 based on Foata normal form. 0/1593 useless extension candidates. Maximal degree in co-relation 2067. Up to 170 conditions per place. [2022-04-18 16:33:47,328 INFO L132 encePairwiseOnDemand]: 686/689 looper letters, 21 selfloop transitions, 2 changer transitions 0/632 dead transitions. [2022-04-18 16:33:47,328 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 632 transitions, 1318 flow [2022-04-18 16:33:47,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:47,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1977 transitions. [2022-04-18 16:33:47,332 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9564586357039188 [2022-04-18 16:33:47,332 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1977 transitions. [2022-04-18 16:33:47,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1977 transitions. [2022-04-18 16:33:47,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:47,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1977 transitions. [2022-04-18 16:33:47,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 659.0) internal successors, (1977), 3 states have internal predecessors, (1977), 0 states have call successors, (0), 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 16:33:47,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:47,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 689.0) internal successors, (2756), 4 states have internal predecessors, (2756), 0 states have call successors, (0), 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 16:33:47,338 INFO L186 Difference]: Start difference. First operand has 614 places, 633 transitions, 1274 flow. Second operand 3 states and 1977 transitions. [2022-04-18 16:33:47,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 632 transitions, 1318 flow [2022-04-18 16:33:47,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 632 transitions, 1317 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:47,345 INFO L242 Difference]: Finished difference. Result has 614 places, 632 transitions, 1275 flow [2022-04-18 16:33:47,346 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=689, PETRI_DIFFERENCE_MINUEND_FLOW=1271, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=630, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1275, PETRI_PLACES=614, PETRI_TRANSITIONS=632} [2022-04-18 16:33:47,347 INFO L335 CegarLoopForPetriNet]: 635 programPoint places, -21 predicate places. [2022-04-18 16:33:47,347 INFO L478 AbstractCegarLoop]: Abstraction has has 614 places, 632 transitions, 1275 flow [2022-04-18 16:33:47,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 652.3333333333334) internal successors, (1957), 3 states have internal predecessors, (1957), 0 states have call successors, (0), 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 16:33:47,348 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:47,348 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] [2022-04-18 16:33:47,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:33:47,348 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-04-18 16:33:47,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:47,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1862564174, now seen corresponding path program 1 times [2022-04-18 16:33:47,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:47,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946786001] [2022-04-18 16:33:47,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:47,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:47,478 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 16:33:47,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:47,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946786001] [2022-04-18 16:33:47,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946786001] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:47,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:47,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:47,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677098637] [2022-04-18 16:33:47,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:47,480 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:47,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:47,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:47,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:47,484 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 528 out of 689 [2022-04-18 16:33:47,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 632 transitions, 1275 flow. Second operand has 6 states, 6 states have (on average 529.8333333333334) internal successors, (3179), 6 states have internal predecessors, (3179), 0 states have call successors, (0), 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 16:33:47,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:47,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 528 of 689 [2022-04-18 16:33:47,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand