./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.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 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:47:43,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:47:43,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:47:43,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:47:43,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:47:43,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:47:43,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:47:43,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:47:43,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:47:43,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:47:43,405 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:47:43,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:47:43,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:47:43,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:47:43,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:47:43,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:47:43,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:47:43,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:47:43,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:47:43,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:47:43,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:47:43,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:47:43,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:47:43,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:47:43,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:47:43,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:47:43,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:47:43,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:47:43,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:47:43,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:47:43,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:47:43,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:47:43,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:47:43,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:47:43,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:47:43,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:47:43,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:47:43,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:47:43,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:47:43,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:47:43,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:47:43,454 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:47:43,489 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:47:43,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:47:43,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:47:43,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:47:43,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:47:43,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:47:43,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:47:43,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:47:43,493 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:47:43,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:47:43,494 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:47:43,494 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:47:43,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:47:43,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:47:43,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:47:43,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:47:43,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:47:43,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:47:43,495 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:47:43,495 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:47:43,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:47:43,496 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:47:43,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:47:43,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:47:43,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:47:43,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:47:43,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:47:43,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:47:43,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:47:43,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:47:43,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:47:43,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:47:43,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:47:43,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:47:43,498 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:47:43,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:47:43,499 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:47:43,499 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:47:43,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:47:43,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:47:43,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:47:43,830 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:47:43,831 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:47:43,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c [2023-08-31 21:47:45,003 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:47:45,212 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:47:45,214 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c [2023-08-31 21:47:45,224 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80d21b22/bba043625aba4340bfe51e25a721cd51/FLAGbd361fcab [2023-08-31 21:47:45,247 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80d21b22/bba043625aba4340bfe51e25a721cd51 [2023-08-31 21:47:45,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:47:45,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:47:45,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:47:45,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:47:45,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:47:45,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c8b706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45, skipping insertion in model container [2023-08-31 21:47:45,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:47:45,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:47:45,468 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2023-08-31 21:47:45,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:47:45,490 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:47:45,531 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2023-08-31 21:47:45,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:47:45,546 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:47:45,548 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 21:47:45,553 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:47:45,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45 WrapperNode [2023-08-31 21:47:45,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:47:45,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:47:45,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:47:45,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:47:45,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,630 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 199 [2023-08-31 21:47:45,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:47:45,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:47:45,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:47:45,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:47:45,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:47:45,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:47:45,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:47:45,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:47:45,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (1/1) ... [2023-08-31 21:47:45,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:47:45,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:47:45,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:47:45,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:47:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:47:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:47:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:47:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:47:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:47:45,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:47:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:47:45,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:47:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:47:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 21:47:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 21:47:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:47:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:47:45,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:47:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:47:45,749 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:47:45,836 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:47:45,838 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:47:46,285 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:47:46,465 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:47:46,465 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-31 21:47:46,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:46 BoogieIcfgContainer [2023-08-31 21:47:46,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:47:46,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:47:46,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:47:46,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:47:46,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:47:45" (1/3) ... [2023-08-31 21:47:46,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76190234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:47:46, skipping insertion in model container [2023-08-31 21:47:46,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:47:45" (2/3) ... [2023-08-31 21:47:46,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76190234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:47:46, skipping insertion in model container [2023-08-31 21:47:46,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:46" (3/3) ... [2023-08-31 21:47:46,475 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue2.wvr.c [2023-08-31 21:47:46,481 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:47:46,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:47:46,490 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-31 21:47:46,490 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:47:46,555 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:47:46,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 157 transitions, 330 flow [2023-08-31 21:47:46,655 INFO L130 PetriNetUnfolder]: 9/155 cut-off events. [2023-08-31 21:47:46,655 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:47:46,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 155 events. 9/155 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 148 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-08-31 21:47:46,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 157 transitions, 330 flow [2023-08-31 21:47:46,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 140 transitions, 292 flow [2023-08-31 21:47:46,671 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:47:46,682 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 140 transitions, 292 flow [2023-08-31 21:47:46,688 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 140 transitions, 292 flow [2023-08-31 21:47:46,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 140 transitions, 292 flow [2023-08-31 21:47:46,714 INFO L130 PetriNetUnfolder]: 8/140 cut-off events. [2023-08-31 21:47:46,715 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:47:46,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 140 events. 8/140 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 140 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-08-31 21:47:46,720 INFO L119 LiptonReduction]: Number of co-enabled transitions 1700 [2023-08-31 21:47:51,724 INFO L134 LiptonReduction]: Checked pairs total: 9134 [2023-08-31 21:47:51,724 INFO L136 LiptonReduction]: Total number of compositions: 133 [2023-08-31 21:47:51,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:47:51,753 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d52f188, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:47:51,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-08-31 21:47:51,755 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:47:51,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:47:51,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:47:51,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:47:51,757 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 21:47:51,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:47:51,762 INFO L85 PathProgramCache]: Analyzing trace with hash 725, now seen corresponding path program 1 times [2023-08-31 21:47:51,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:47:51,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122510595] [2023-08-31 21:47:51,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:47:51,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:47:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:47:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:47:51,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:47:51,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122510595] [2023-08-31 21:47:51,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122510595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:47:51,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:47:51,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:47:51,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934673041] [2023-08-31 21:47:51,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:47:51,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:47:51,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:47:51,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:47:51,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:47:51,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 290 [2023-08-31 21:47:51,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 106 flow. Second operand has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:51,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:47:51,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 290 [2023-08-31 21:47:51,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:47:51,961 INFO L130 PetriNetUnfolder]: 45/150 cut-off events. [2023-08-31 21:47:51,961 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-31 21:47:51,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 150 events. 45/150 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 590 event pairs, 18 based on Foata normal form. 23/138 useless extension candidates. Maximal degree in co-relation 174. Up to 75 conditions per place. [2023-08-31 21:47:51,964 INFO L137 encePairwiseOnDemand]: 275/290 looper letters, 13 selfloop transitions, 0 changer transitions 1/32 dead transitions. [2023-08-31 21:47:51,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 104 flow [2023-08-31 21:47:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:47:51,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:47:51,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 301 transitions. [2023-08-31 21:47:51,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5189655172413793 [2023-08-31 21:47:51,976 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 301 transitions. [2023-08-31 21:47:51,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 301 transitions. [2023-08-31 21:47:51,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:47:51,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 301 transitions. [2023-08-31 21:47:51,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 150.5) internal successors, (301), 2 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:51,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:51,987 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:51,988 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 106 flow. Second operand 2 states and 301 transitions. [2023-08-31 21:47:51,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 104 flow [2023-08-31 21:47:51,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 96 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:47:51,992 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 65 flow [2023-08-31 21:47:51,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=65, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2023-08-31 21:47:51,996 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -16 predicate places. [2023-08-31 21:47:51,997 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 65 flow [2023-08-31 21:47:51,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 136.5) internal successors, (273), 2 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:51,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:47:51,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:47:51,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:47:51,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 21:47:51,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:47:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash -14369232, now seen corresponding path program 1 times [2023-08-31 21:47:51,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:47:51,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42570239] [2023-08-31 21:47:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:47:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:47:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:47:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:47:52,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:47:52,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42570239] [2023-08-31 21:47:52,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42570239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:47:52,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:47:52,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:47:52,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118492605] [2023-08-31 21:47:52,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:47:52,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:47:52,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:47:52,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:47:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:47:52,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 290 [2023-08-31 21:47:52,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:47:52,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 290 [2023-08-31 21:47:52,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:47:52,171 INFO L130 PetriNetUnfolder]: 91/208 cut-off events. [2023-08-31 21:47:52,171 INFO L131 PetriNetUnfolder]: For 5/20 co-relation queries the response was YES. [2023-08-31 21:47:52,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 208 events. 91/208 cut-off events. For 5/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 737 event pairs, 66 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 374. Up to 160 conditions per place. [2023-08-31 21:47:52,176 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 16 selfloop transitions, 1 changer transitions 0/29 dead transitions. [2023-08-31 21:47:52,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 95 flow [2023-08-31 21:47:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:47:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:47:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-08-31 21:47:52,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45632183908045976 [2023-08-31 21:47:52,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-08-31 21:47:52,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-08-31 21:47:52,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:47:52,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-08-31 21:47:52,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,188 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,188 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 65 flow. Second operand 3 states and 397 transitions. [2023-08-31 21:47:52,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 95 flow [2023-08-31 21:47:52,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 95 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:47:52,189 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 63 flow [2023-08-31 21:47:52,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2023-08-31 21:47:52,191 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -17 predicate places. [2023-08-31 21:47:52,191 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 63 flow [2023-08-31 21:47:52,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:47:52,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:47:52,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:47:52,192 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 21:47:52,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:47:52,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1923354709, now seen corresponding path program 1 times [2023-08-31 21:47:52,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:47:52,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894065143] [2023-08-31 21:47:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:47:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:47:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:47:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:47:52,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:47:52,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894065143] [2023-08-31 21:47:52,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894065143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:47:52,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:47:52,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:47:52,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201097563] [2023-08-31 21:47:52,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:47:52,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:47:52,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:47:52,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:47:52,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:47:52,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 290 [2023-08-31 21:47:52,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 124.66666666666667) internal successors, (748), 6 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:47:52,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 290 [2023-08-31 21:47:52,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:47:52,949 INFO L130 PetriNetUnfolder]: 141/252 cut-off events. [2023-08-31 21:47:52,949 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:47:52,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 252 events. 141/252 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 968 event pairs, 5 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 462. Up to 80 conditions per place. [2023-08-31 21:47:52,951 INFO L137 encePairwiseOnDemand]: 285/290 looper letters, 29 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-31 21:47:52,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 159 flow [2023-08-31 21:47:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:47:52,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:47:52,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 772 transitions. [2023-08-31 21:47:52,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4436781609195402 [2023-08-31 21:47:52,954 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 772 transitions. [2023-08-31 21:47:52,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 772 transitions. [2023-08-31 21:47:52,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:47:52,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 772 transitions. [2023-08-31 21:47:52,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,960 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,960 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 63 flow. Second operand 6 states and 772 transitions. [2023-08-31 21:47:52,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 159 flow [2023-08-31 21:47:52,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:47:52,962 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 68 flow [2023-08-31 21:47:52,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=68, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-08-31 21:47:52,963 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -14 predicate places. [2023-08-31 21:47:52,963 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 68 flow [2023-08-31 21:47:52,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.66666666666667) internal successors, (748), 6 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:52,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:47:52,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:47:52,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:47:52,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 21:47:52,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:47:52,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1045742175, now seen corresponding path program 1 times [2023-08-31 21:47:52,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:47:52,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951436282] [2023-08-31 21:47:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:47:52,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:47:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:47:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:47:53,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:47:53,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951436282] [2023-08-31 21:47:53,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951436282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:47:53,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:47:53,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:47:53,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564474338] [2023-08-31 21:47:53,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:47:53,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:47:53,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:47:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:47:53,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:47:53,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 290 [2023-08-31 21:47:53,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 68 flow. Second operand has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:53,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:47:53,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 290 [2023-08-31 21:47:53,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:47:53,466 INFO L130 PetriNetUnfolder]: 61/147 cut-off events. [2023-08-31 21:47:53,466 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-31 21:47:53,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 147 events. 61/147 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 525 event pairs, 16 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 277. Up to 67 conditions per place. [2023-08-31 21:47:53,467 INFO L137 encePairwiseOnDemand]: 285/290 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2023-08-31 21:47:53,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 35 transitions, 132 flow [2023-08-31 21:47:53,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:47:53,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:47:53,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 764 transitions. [2023-08-31 21:47:53,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43908045977011495 [2023-08-31 21:47:53,470 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 764 transitions. [2023-08-31 21:47:53,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 764 transitions. [2023-08-31 21:47:53,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:47:53,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 764 transitions. [2023-08-31 21:47:53,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.33333333333333) internal successors, (764), 6 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:53,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:53,476 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:53,476 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 68 flow. Second operand 6 states and 764 transitions. [2023-08-31 21:47:53,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 35 transitions, 132 flow [2023-08-31 21:47:53,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 125 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:47:53,477 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2023-08-31 21:47:53,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2023-08-31 21:47:53,478 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -14 predicate places. [2023-08-31 21:47:53,478 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2023-08-31 21:47:53,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:47:53,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2023-08-31 21:47:53,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-08-31 21:47:53,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-08-31 21:47:53,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-08-31 21:47:53,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-08-31 21:47:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-08-31 21:47:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-08-31 21:47:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-08-31 21:47:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2023-08-31 21:47:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-08-31 21:47:53,482 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-08-31 21:47:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-08-31 21:47:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-08-31 21:47:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-08-31 21:47:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-08-31 21:47:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-08-31 21:47:53,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-08-31 21:47:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2023-08-31 21:47:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2023-08-31 21:47:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2023-08-31 21:47:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2023-08-31 21:47:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-08-31 21:47:53,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-08-31 21:47:53,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-08-31 21:47:53,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-08-31 21:47:53,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-08-31 21:47:53,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-08-31 21:47:53,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-08-31 21:47:53,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-08-31 21:47:53,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:47:53,486 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-31 21:47:53,490 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:47:53,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:47:53,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:47:53 BasicIcfg [2023-08-31 21:47:53,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:47:53,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:47:53,494 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:47:53,494 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:47:53,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:47:46" (3/4) ... [2023-08-31 21:47:53,496 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:47:53,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:47:53,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:47:53,504 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-31 21:47:53,504 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:47:53,505 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:47:53,505 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:47:53,539 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:47:53,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:47:53,540 INFO L158 Benchmark]: Toolchain (without parser) took 8289.37ms. Allocated memory was 62.9MB in the beginning and 111.1MB in the end (delta: 48.2MB). Free memory was 41.2MB in the beginning and 54.2MB in the end (delta: -13.1MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2023-08-31 21:47:53,540 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 50.3MB. Free memory was 28.1MB in the beginning and 28.0MB in the end (delta: 52.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:47:53,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.69ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 29.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 21:47:53,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.77ms. Allocated memory is still 62.9MB. Free memory was 29.0MB in the beginning and 42.3MB in the end (delta: -13.4MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2023-08-31 21:47:53,541 INFO L158 Benchmark]: Boogie Preprocessor took 53.56ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 40.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:47:53,541 INFO L158 Benchmark]: RCFGBuilder took 780.32ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 40.2MB in the beginning and 44.4MB in the end (delta: -4.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2023-08-31 21:47:53,541 INFO L158 Benchmark]: TraceAbstraction took 7024.44ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 44.0MB in the beginning and 57.4MB in the end (delta: -13.4MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2023-08-31 21:47:53,542 INFO L158 Benchmark]: Witness Printer took 45.43ms. Allocated memory is still 111.1MB. Free memory was 57.4MB in the beginning and 54.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:47:53,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 50.3MB. Free memory was 28.1MB in the beginning and 28.0MB in the end (delta: 52.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.69ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 29.0MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.77ms. Allocated memory is still 62.9MB. Free memory was 29.0MB in the beginning and 42.3MB in the end (delta: -13.4MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.56ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 40.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 780.32ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 40.2MB in the beginning and 44.4MB in the end (delta: -4.1MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * TraceAbstraction took 7024.44ms. Allocated memory was 75.5MB in the beginning and 111.1MB in the end (delta: 35.7MB). Free memory was 44.0MB in the beginning and 57.4MB in the end (delta: -13.4MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. * Witness Printer took 45.43ms. Allocated memory is still 111.1MB. Free memory was 57.4MB in the beginning and 54.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 139 PlacesBefore, 49 PlacesAfterwards, 140 TransitionsBefore, 47 TransitionsAfterwards, 1700 CoEnabledTransitionPairs, 7 FixpointIterations, 80 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 133 TotalNumberOfCompositions, 9134 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3751, independent: 3372, independent conditional: 0, independent unconditional: 3372, dependent: 379, dependent conditional: 0, dependent unconditional: 379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 934, independent: 863, independent conditional: 0, independent unconditional: 863, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3751, independent: 2509, independent conditional: 0, independent unconditional: 2509, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 934, unknown conditional: 0, unknown unconditional: 934] , Statistics on independence cache: Total cache size (in pairs): 245, Positive cache size: 211, Positive conditional cache size: 0, Positive unconditional cache size: 211, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 183 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 430 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 14 mSDtfsCounter, 430 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:47:53,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE