./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_36-indirect_racefree.i --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/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_36-indirect_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:43:03,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:43:03,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:43:03,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:43:03,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:43:03,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:43:03,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:43:03,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:43:03,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:43:03,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:43:03,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:43:03,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:43:03,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:43:03,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:43:03,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:43:03,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:43:03,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:43:03,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:43:03,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:43:03,383 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:43:03,386 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:43:03,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:43:03,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:43:03,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:43:03,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:43:03,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:43:03,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:43:03,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:43:03,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:43:03,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:43:03,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:43:03,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:43:03,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:43:03,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:43:03,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:43:03,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:43:03,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:43:03,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:43:03,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:43:03,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:43:03,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:43:03,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:43:03,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:43:03,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:43:03,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:43:03,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:43:03,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:43:03,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:43:03,427 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:43:03,427 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:43:03,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:43:03,427 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:43:03,428 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:43:03,428 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:43:03,428 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:43:03,428 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:43:03,428 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:43:03,428 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:43:03,429 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:43:03,429 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:43:03,429 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:43:03,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:43:03,430 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:43:03,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:43:03,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:43:03,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:43:03,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:43:03,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:43:03,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:43:03,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:43:03,431 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:43:03,432 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:43:03,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:43:03,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:43:03,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:43:03,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:43:03,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:43:03,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:43:03,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:43:03,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:43:03,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:43:03,433 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:43:03,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:43:03,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:43:03,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:43:03,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:43:03,434 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/UTaipan-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 [2022-04-18 18:43:03,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:43:03,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:43:03,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:43:03,630 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:43:03,630 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:43:03,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_36-indirect_racefree.i [2022-04-18 18:43:03,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1074f9a72/e142bb43dde64e89a669bcbf0466611b/FLAG5880e6891 [2022-04-18 18:43:04,078 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:43:04,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_36-indirect_racefree.i [2022-04-18 18:43:04,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1074f9a72/e142bb43dde64e89a669bcbf0466611b/FLAG5880e6891 [2022-04-18 18:43:04,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1074f9a72/e142bb43dde64e89a669bcbf0466611b [2022-04-18 18:43:04,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:43:04,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:43:04,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:43:04,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:43:04,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:43:04,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d2678b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04, skipping insertion in model container [2022-04-18 18:43:04,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:43:04,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:43:04,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_36-indirect_racefree.i[30176,30189] [2022-04-18 18:43:04,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:43:04,418 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:43:04,444 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_36-indirect_racefree.i[30176,30189] [2022-04-18 18:43:04,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:43:04,483 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:43:04,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04 WrapperNode [2022-04-18 18:43:04,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:43:04,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:43:04,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:43:04,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:43:04,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,518 INFO L137 Inliner]: procedures = 170, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2022-04-18 18:43:04,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:43:04,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:43:04,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:43:04,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:43:04,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:43:04,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:43:04,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:43:04,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:43:04,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (1/1) ... [2022-04-18 18:43:04,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:43:04,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:43:04,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:43:04,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 18:43:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:43:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:43:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:43:04,605 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:43:04,682 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:43:04,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:43:04,924 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:43:04,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:43:04,942 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-04-18 18:43:04,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:43:04 BoogieIcfgContainer [2022-04-18 18:43:04,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:43:04,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:43:04,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:43:04,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:43:04,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:43:04" (1/3) ... [2022-04-18 18:43:04,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6444679b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:43:04, skipping insertion in model container [2022-04-18 18:43:04,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:43:04" (2/3) ... [2022-04-18 18:43:04,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6444679b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:43:04, skipping insertion in model container [2022-04-18 18:43:04,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:43:04" (3/3) ... [2022-04-18 18:43:04,952 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2022-04-18 18:43:04,956 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:43:04,956 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:43:04,956 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-04-18 18:43:04,956 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:43:05,014 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:43:05,048 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:43:05,060 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=FINITE_AUTOMATA, 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 18:43:05,061 INFO L341 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-04-18 18:43:05,072 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:43:05,081 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 178 transitions, 364 flow [2022-04-18 18:43:05,084 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 178 transitions, 364 flow [2022-04-18 18:43:05,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 169 places, 178 transitions, 364 flow [2022-04-18 18:43:05,158 INFO L129 PetriNetUnfolder]: 17/230 cut-off events. [2022-04-18 18:43:05,158 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:43:05,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 230 events. 17/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 684 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 123. Up to 4 conditions per place. [2022-04-18 18:43:05,168 INFO L116 LiptonReduction]: Number of co-enabled transitions 7656 [2022-04-18 18:43:08,891 INFO L131 LiptonReduction]: Checked pairs total: 49057 [2022-04-18 18:43:08,891 INFO L133 LiptonReduction]: Total number of compositions: 169 [2022-04-18 18:43:08,901 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 74 transitions, 156 flow [2022-04-18 18:43:08,967 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 890 states, 842 states have (on average 2.315914489311164) internal successors, (1950), 889 states have internal predecessors, (1950), 0 states have call successors, (0), 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 18:43:08,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 890 states, 842 states have (on average 2.315914489311164) internal successors, (1950), 889 states have internal predecessors, (1950), 0 states have call successors, (0), 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 18:43:08,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:43:08,972 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:08,973 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:43:08,973 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-04-18 18:43:08,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:08,978 INFO L85 PathProgramCache]: Analyzing trace with hash 658, now seen corresponding path program 1 times [2022-04-18 18:43:08,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:08,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788714907] [2022-04-18 18:43:08,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:08,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:43:09,055 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 18:43:09,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:43:09,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788714907] [2022-04-18 18:43:09,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788714907] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:43:09,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:43:09,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:43:09,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235170704] [2022-04-18 18:43:09,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:43:09,062 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:43:09,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:43:09,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:43:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:43:09,079 INFO L87 Difference]: Start difference. First operand has 890 states, 842 states have (on average 2.315914489311164) internal successors, (1950), 889 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 18:43:09,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:43:09,126 INFO L93 Difference]: Finished difference Result 804 states and 1530 transitions. [2022-04-18 18:43:09,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:43:09,128 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-04-18 18:43:09,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:43:09,143 INFO L225 Difference]: With dead ends: 804 [2022-04-18 18:43:09,143 INFO L226 Difference]: Without dead ends: 800 [2022-04-18 18:43:09,144 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:43:09,147 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:43:09,148 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:43:09,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-04-18 18:43:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2022-04-18 18:43:09,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 775 states have (on average 1.9651612903225806) internal successors, (1523), 799 states have internal predecessors, (1523), 0 states have call successors, (0), 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 18:43:09,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1523 transitions. [2022-04-18 18:43:09,216 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1523 transitions. Word has length 1 [2022-04-18 18:43:09,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:43:09,216 INFO L478 AbstractCegarLoop]: Abstraction has 800 states and 1523 transitions. [2022-04-18 18:43:09,217 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 18:43:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1523 transitions. [2022-04-18 18:43:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 18:43:09,217 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:09,218 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 18:43:09,218 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:43:09,218 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-04-18 18:43:09,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:09,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1992272547, now seen corresponding path program 1 times [2022-04-18 18:43:09,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:09,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622189566] [2022-04-18 18:43:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:09,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:43:09,261 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 18:43:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:43:09,292 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 18:43:09,292 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 18:43:09,294 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2022-04-18 18:43:09,295 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2022-04-18 18:43:09,301 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2022-04-18 18:43:09,302 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2022-04-18 18:43:09,302 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2022-04-18 18:43:09,302 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2022-04-18 18:43:09,302 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2022-04-18 18:43:09,303 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2022-04-18 18:43:09,303 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2022-04-18 18:43:09,303 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2022-04-18 18:43:09,303 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2022-04-18 18:43:09,303 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2022-04-18 18:43:09,304 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2022-04-18 18:43:09,304 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2022-04-18 18:43:09,304 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2022-04-18 18:43:09,304 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2022-04-18 18:43:09,304 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2022-04-18 18:43:09,304 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2022-04-18 18:43:09,305 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2022-04-18 18:43:09,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:43:09,307 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 18:43:09,307 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 18:43:09,308 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 18:43:09,324 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 18:43:09,327 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:43:09,327 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=FINITE_AUTOMATA, 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 18:43:09,328 INFO L341 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-04-18 18:43:09,329 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:43:09,330 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 246 transitions, 510 flow [2022-04-18 18:43:09,330 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 246 transitions, 510 flow [2022-04-18 18:43:09,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 246 transitions, 510 flow [2022-04-18 18:43:09,383 INFO L129 PetriNetUnfolder]: 31/381 cut-off events. [2022-04-18 18:43:09,383 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 18:43:09,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 381 events. 31/381 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1469 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 232. Up to 8 conditions per place. [2022-04-18 18:43:09,402 INFO L116 LiptonReduction]: Number of co-enabled transitions 25476 [2022-04-18 18:43:13,875 INFO L131 LiptonReduction]: Checked pairs total: 230118 [2022-04-18 18:43:13,876 INFO L133 LiptonReduction]: Total number of compositions: 226 [2022-04-18 18:43:13,877 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 111 places, 123 transitions, 264 flow [2022-04-18 18:43:14,718 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 37533 states, 37191 states have (on average 3.3306176225430884) internal successors, (123869), 37532 states have internal predecessors, (123869), 0 states have call successors, (0), 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 18:43:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 37533 states, 37191 states have (on average 3.3306176225430884) internal successors, (123869), 37532 states have internal predecessors, (123869), 0 states have call successors, (0), 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 18:43:14,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:43:14,778 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:14,778 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:43:14,778 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 18:43:14,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1168, now seen corresponding path program 1 times [2022-04-18 18:43:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:14,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526132006] [2022-04-18 18:43:14,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:14,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:43:14,794 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 18:43:14,798 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:43:14,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526132006] [2022-04-18 18:43:14,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526132006] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:43:14,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:43:14,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:43:14,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058066247] [2022-04-18 18:43:14,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:43:14,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:43:14,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:43:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:43:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:43:14,859 INFO L87 Difference]: Start difference. First operand has 37533 states, 37191 states have (on average 3.3306176225430884) internal successors, (123869), 37532 states have internal predecessors, (123869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 18:43:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:43:15,434 INFO L93 Difference]: Finished difference Result 32423 states and 92905 transitions. [2022-04-18 18:43:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:43:15,435 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-04-18 18:43:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:43:15,694 INFO L225 Difference]: With dead ends: 32423 [2022-04-18 18:43:15,695 INFO L226 Difference]: Without dead ends: 32407 [2022-04-18 18:43:15,696 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:43:15,700 INFO L913 BasicCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:43:15,704 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:43:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32407 states. [2022-04-18 18:43:16,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32407 to 32407. [2022-04-18 18:43:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32407 states, 32259 states have (on average 2.8787315167860132) internal successors, (92865), 32406 states have internal predecessors, (92865), 0 states have call successors, (0), 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 18:43:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32407 states to 32407 states and 92865 transitions. [2022-04-18 18:43:16,746 INFO L78 Accepts]: Start accepts. Automaton has 32407 states and 92865 transitions. Word has length 1 [2022-04-18 18:43:16,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:43:16,747 INFO L478 AbstractCegarLoop]: Abstraction has 32407 states and 92865 transitions. [2022-04-18 18:43:16,747 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 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 18:43:16,747 INFO L276 IsEmpty]: Start isEmpty. Operand 32407 states and 92865 transitions. [2022-04-18 18:43:16,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 18:43:16,747 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:16,748 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:43:16,748 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 18:43:16,748 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 18:43:16,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:16,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1001384163, now seen corresponding path program 1 times [2022-04-18 18:43:16,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:16,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933330075] [2022-04-18 18:43:16,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:16,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:43:16,923 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 18:43:16,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:43:16,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933330075] [2022-04-18 18:43:16,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933330075] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:43:16,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:43:16,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:43:16,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424713570] [2022-04-18 18:43:16,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:43:16,924 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:43:16,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:43:16,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:43:16,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:43:16,924 INFO L87 Difference]: Start difference. First operand 32407 states and 92865 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 18:43:17,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:43:17,143 INFO L93 Difference]: Finished difference Result 32397 states and 92854 transitions. [2022-04-18 18:43:17,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:43:17,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-04-18 18:43:17,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:43:17,402 INFO L225 Difference]: With dead ends: 32397 [2022-04-18 18:43:17,403 INFO L226 Difference]: Without dead ends: 32397 [2022-04-18 18:43:17,403 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:43:17,409 INFO L913 BasicCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:43:17,410 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 116 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:43:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32397 states. [2022-04-18 18:43:18,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32397 to 32397. [2022-04-18 18:43:18,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32397 states, 32250 states have (on average 2.8791937984496125) internal successors, (92854), 32396 states have internal predecessors, (92854), 0 states have call successors, (0), 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 18:43:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32397 states to 32397 states and 92854 transitions. [2022-04-18 18:43:18,429 INFO L78 Accepts]: Start accepts. Automaton has 32397 states and 92854 transitions. Word has length 9 [2022-04-18 18:43:18,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:43:18,429 INFO L478 AbstractCegarLoop]: Abstraction has 32397 states and 92854 transitions. [2022-04-18 18:43:18,430 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 18:43:18,430 INFO L276 IsEmpty]: Start isEmpty. Operand 32397 states and 92854 transitions. [2022-04-18 18:43:18,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 18:43:18,431 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:43:18,431 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 18:43:18,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 18:43:18,431 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-04-18 18:43:18,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:43:18,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2055775525, now seen corresponding path program 1 times [2022-04-18 18:43:18,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:43:18,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809552289] [2022-04-18 18:43:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:43:18,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:43:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:43:18,447 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 18:43:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:43:18,463 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 18:43:18,464 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 18:43:18,464 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-04-18 18:43:18,464 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-04-18 18:43:18,464 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-04-18 18:43:18,464 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-04-18 18:43:18,465 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-04-18 18:43:18,465 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-04-18 18:43:18,465 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-04-18 18:43:18,465 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-04-18 18:43:18,465 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-04-18 18:43:18,465 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-04-18 18:43:18,465 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-04-18 18:43:18,466 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-04-18 18:43:18,467 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-04-18 18:43:18,471 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-04-18 18:43:18,471 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-04-18 18:43:18,472 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-04-18 18:43:18,472 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 18:43:18,472 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 18:43:18,473 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 18:43:18,473 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 18:43:18,609 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 18:43:18,610 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:43:18,610 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=FINITE_AUTOMATA, 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 18:43:18,610 INFO L341 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-04-18 18:43:18,612 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:43:18,612 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 295 places, 314 transitions, 658 flow [2022-04-18 18:43:18,612 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 295 places, 314 transitions, 658 flow [2022-04-18 18:43:18,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 295 places, 314 transitions, 658 flow [2022-04-18 18:43:18,699 INFO L129 PetriNetUnfolder]: 50/577 cut-off events. [2022-04-18 18:43:18,700 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-04-18 18:43:18,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 577 events. 50/577 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2542 event pairs, 1 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 389. Up to 16 conditions per place. [2022-04-18 18:43:18,732 INFO L116 LiptonReduction]: Number of co-enabled transitions 51876 [2022-04-18 18:43:24,799 INFO L131 LiptonReduction]: Checked pairs total: 508285 [2022-04-18 18:43:24,801 INFO L133 LiptonReduction]: Total number of compositions: 284 [2022-04-18 18:43:24,802 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 151 places, 167 transitions, 364 flow