./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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-queue.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 c642b478618f67be61772197bb614a61e988cb880f57faee5dd0470714f61e7e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 19:09:41,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:09:41,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:09:41,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:09:41,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:09:41,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:09:41,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:09:41,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:09:41,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:09:41,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:09:41,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:09:41,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:09:41,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:09:41,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:09:41,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:09:41,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:09:41,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:09:41,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:09:41,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:09:41,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:09:41,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:09:41,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:09:41,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:09:41,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:09:41,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:09:41,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:09:41,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:09:41,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:09:41,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:09:41,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:09:41,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:09:41,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:09:41,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:09:41,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:09:41,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:09:41,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:09:41,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:09:41,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:09:41,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:09:41,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:09:41,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:09:41,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:09:41,277 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:09:41,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:09:41,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:09:41,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:09:41,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:09:41,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:09:41,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:09:41,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:09:41,280 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:09:41,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:09:41,281 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:09:41,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:09:41,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:09:41,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:09:41,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:09:41,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:09:41,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:09:41,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:09:41,283 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:09:41,283 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:09:41,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:09:41,283 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:09:41,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:09:41,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:09:41,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:09:41,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:09:41,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:09:41,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:09:41,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:09:41,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:09:41,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:09:41,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:09:41,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:09:41,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:09:41,285 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:09:41,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:09:41,286 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:09:41,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c642b478618f67be61772197bb614a61e988cb880f57faee5dd0470714f61e7e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:09:41,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:09:41,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:09:41,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:09:41,578 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:09:41,580 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:09:41,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c [2023-08-29 19:09:42,666 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:09:42,892 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:09:42,893 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-counter-queue.wvr.c [2023-08-29 19:09:42,900 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/533a4bcdd/3e08f233735b4756b790845c86a6e09c/FLAGa980e670c [2023-08-29 19:09:42,916 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/533a4bcdd/3e08f233735b4756b790845c86a6e09c [2023-08-29 19:09:42,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:09:42,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:09:42,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:09:42,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:09:42,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:09:42,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:09:42" (1/1) ... [2023-08-29 19:09:42,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76bfb6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:42, skipping insertion in model container [2023-08-29 19:09:42,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:09:42" (1/1) ... [2023-08-29 19:09:42,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:09:42,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:09:43,097 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-queue.wvr.c[2428,2441] [2023-08-29 19:09:43,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:09:43,121 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:09:43,160 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-queue.wvr.c[2428,2441] [2023-08-29 19:09:43,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:09:43,180 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:09:43,181 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 19:09:43,186 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:09:43,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43 WrapperNode [2023-08-29 19:09:43,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:09:43,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:09:43,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:09:43,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:09:43,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,244 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 205 [2023-08-29 19:09:43,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:09:43,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:09:43,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:09:43,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:09:43,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:09:43,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:09:43,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:09:43,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:09:43,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (1/1) ... [2023-08-29 19:09:43,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:09:43,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:09:43,334 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) [2023-08-29 19:09:43,365 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 [2023-08-29 19:09:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:09:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:09:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:09:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:09:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:09:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:09:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:09:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:09:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:09:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 19:09:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 19:09:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 19:09:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:09:43,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:09:43,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:09:43,383 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 19:09:43,506 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:09:43,508 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:09:43,908 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:09:44,084 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:09:44,085 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 19:09:44,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:09:44 BoogieIcfgContainer [2023-08-29 19:09:44,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:09:44,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:09:44,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:09:44,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:09:44,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:09:42" (1/3) ... [2023-08-29 19:09:44,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29871f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:09:44, skipping insertion in model container [2023-08-29 19:09:44,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:09:43" (2/3) ... [2023-08-29 19:09:44,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29871f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:09:44, skipping insertion in model container [2023-08-29 19:09:44,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:09:44" (3/3) ... [2023-08-29 19:09:44,094 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2023-08-29 19:09:44,101 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:09:44,109 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:09:44,109 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-29 19:09:44,110 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:09:44,193 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 19:09:44,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 334 flow [2023-08-29 19:09:44,315 INFO L130 PetriNetUnfolder]: 9/157 cut-off events. [2023-08-29 19:09:44,316 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 19:09:44,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 9/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-08-29 19:09:44,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 159 transitions, 334 flow [2023-08-29 19:09:44,329 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 142 transitions, 296 flow [2023-08-29 19:09:44,333 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:09:44,353 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 142 transitions, 296 flow [2023-08-29 19:09:44,358 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 142 transitions, 296 flow [2023-08-29 19:09:44,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 142 transitions, 296 flow [2023-08-29 19:09:44,413 INFO L130 PetriNetUnfolder]: 8/142 cut-off events. [2023-08-29 19:09:44,414 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 19:09:44,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 142 events. 8/142 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 146 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-08-29 19:09:44,419 INFO L119 LiptonReduction]: Number of co-enabled transitions 1836 [2023-08-29 19:09:48,694 INFO L134 LiptonReduction]: Checked pairs total: 12232 [2023-08-29 19:09:48,695 INFO L136 LiptonReduction]: Total number of compositions: 124 [2023-08-29 19:09:48,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:09:48,713 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;@324beeba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 19:09:48,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-08-29 19:09:48,714 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:09:48,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:09:48,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:09:48,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:09:48,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 19:09:48,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:09:48,720 INFO L85 PathProgramCache]: Analyzing trace with hash 719, now seen corresponding path program 1 times [2023-08-29 19:09:48,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:09:48,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619596799] [2023-08-29 19:09:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:09:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:09:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:09:48,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:09:48,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:09:48,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619596799] [2023-08-29 19:09:48,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619596799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:09:48,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:09:48,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:09:48,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695681170] [2023-08-29 19:09:48,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:09:48,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:09:48,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:09:48,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:09:48,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:09:48,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 283 [2023-08-29 19:09:48,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 110 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) [2023-08-29 19:09:48,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:09:48,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 283 [2023-08-29 19:09:48,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:09:48,926 INFO L130 PetriNetUnfolder]: 75/242 cut-off events. [2023-08-29 19:09:48,927 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-08-29 19:09:48,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 242 events. 75/242 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1184 event pairs, 38 based on Foata normal form. 36/231 useless extension candidates. Maximal degree in co-relation 303. Up to 123 conditions per place. [2023-08-29 19:09:48,933 INFO L137 encePairwiseOnDemand]: 268/283 looper letters, 15 selfloop transitions, 0 changer transitions 1/34 dead transitions. [2023-08-29 19:09:48,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 34 transitions, 112 flow [2023-08-29 19:09:48,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:09:48,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:09:48,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 303 transitions. [2023-08-29 19:09:48,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5353356890459364 [2023-08-29 19:09:48,952 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 303 transitions. [2023-08-29 19:09:48,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 303 transitions. [2023-08-29 19:09:48,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:09:48,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 303 transitions. [2023-08-29 19:09:48,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 151.5) internal successors, (303), 2 states have internal predecessors, (303), 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) [2023-08-29 19:09:48,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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) [2023-08-29 19:09:48,967 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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) [2023-08-29 19:09:48,968 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 110 flow. Second operand 2 states and 303 transitions. [2023-08-29 19:09:48,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 34 transitions, 112 flow [2023-08-29 19:09:48,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 104 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:09:48,972 INFO L231 Difference]: Finished difference. Result has 35 places, 33 transitions, 69 flow [2023-08-29 19:09:48,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=69, PETRI_PLACES=35, PETRI_TRANSITIONS=33} [2023-08-29 19:09:48,977 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -16 predicate places. [2023-08-29 19:09:48,977 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 33 transitions, 69 flow [2023-08-29 19:09:48,978 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) [2023-08-29 19:09:48,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:09:48,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 19:09:48,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 19:09:48,979 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-29 19:09:48,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:09:48,979 INFO L85 PathProgramCache]: Analyzing trace with hash -131564047, now seen corresponding path program 1 times [2023-08-29 19:09:48,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:09:48,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724925627] [2023-08-29 19:09:48,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:09:48,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:09:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:09:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:09:49,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:09:49,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724925627] [2023-08-29 19:09:49,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724925627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:09:49,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:09:49,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:09:49,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792948460] [2023-08-29 19:09:49,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:09:49,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:09:49,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:09:49,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:09:49,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:09:49,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 283 [2023-08-29 19:09:49,133 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 69 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) [2023-08-29 19:09:49,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:09:49,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 283 [2023-08-29 19:09:49,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:09:49,205 INFO L130 PetriNetUnfolder]: 128/296 cut-off events. [2023-08-29 19:09:49,205 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 19:09:49,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 296 events. 128/296 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1198 event pairs, 99 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 526. Up to 223 conditions per place. [2023-08-29 19:09:49,208 INFO L137 encePairwiseOnDemand]: 280/283 looper letters, 18 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2023-08-29 19:09:49,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 103 flow [2023-08-29 19:09:49,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:09:49,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:09:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2023-08-29 19:09:49,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46996466431095407 [2023-08-29 19:09:49,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2023-08-29 19:09:49,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2023-08-29 19:09:49,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:09:49,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2023-08-29 19:09:49,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2023-08-29 19:09:49,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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) [2023-08-29 19:09:49,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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) [2023-08-29 19:09:49,217 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 69 flow. Second operand 3 states and 399 transitions. [2023-08-29 19:09:49,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 103 flow [2023-08-29 19:09:49,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 31 transitions, 103 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:09:49,218 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 67 flow [2023-08-29 19:09:49,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2023-08-29 19:09:49,220 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -17 predicate places. [2023-08-29 19:09:49,220 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 67 flow [2023-08-29 19:09:49,220 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) [2023-08-29 19:09:49,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:09:49,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:09:49,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 19:09:49,221 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)] === [2023-08-29 19:09:49,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:09:49,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1715966205, now seen corresponding path program 1 times [2023-08-29 19:09:49,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:09:49,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009125607] [2023-08-29 19:09:49,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:09:49,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:09:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:09:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:09:49,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:09:49,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009125607] [2023-08-29 19:09:49,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009125607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:09:49,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:09:49,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:09:49,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618282430] [2023-08-29 19:09:49,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:09:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:09:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:09:49,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:09:49,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:09:49,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 283 [2023-08-29 19:09:49,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 67 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) [2023-08-29 19:09:49,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:09:49,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 283 [2023-08-29 19:09:49,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:09:49,873 INFO L130 PetriNetUnfolder]: 235/403 cut-off events. [2023-08-29 19:09:49,873 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:09:49,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 403 events. 235/403 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1696 event pairs, 11 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 754. Up to 130 conditions per place. [2023-08-29 19:09:49,875 INFO L137 encePairwiseOnDemand]: 278/283 looper letters, 39 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2023-08-29 19:09:49,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 199 flow [2023-08-29 19:09:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:09:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:09:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 782 transitions. [2023-08-29 19:09:49,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46054181389870436 [2023-08-29 19:09:49,878 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 782 transitions. [2023-08-29 19:09:49,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 782 transitions. [2023-08-29 19:09:49,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:09:49,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 782 transitions. [2023-08-29 19:09:49,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.33333333333334) internal successors, (782), 6 states have internal predecessors, (782), 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) [2023-08-29 19:09:49,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 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) [2023-08-29 19:09:49,885 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 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) [2023-08-29 19:09:49,885 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 67 flow. Second operand 6 states and 782 transitions. [2023-08-29 19:09:49,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 199 flow [2023-08-29 19:09:49,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 19:09:49,887 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 72 flow [2023-08-29 19:09:49,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=72, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2023-08-29 19:09:49,888 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -14 predicate places. [2023-08-29 19:09:49,888 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 72 flow [2023-08-29 19:09:49,888 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) [2023-08-29 19:09:49,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:09:49,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:09:49,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 19:09:49,889 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)] === [2023-08-29 19:09:49,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:09:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash 464796212, now seen corresponding path program 1 times [2023-08-29 19:09:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:09:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593178453] [2023-08-29 19:09:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:09:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:09:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:09:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 19:09:50,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:09:50,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593178453] [2023-08-29 19:09:50,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593178453] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:09:50,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:09:50,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 19:09:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804454675] [2023-08-29 19:09:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:09:50,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 19:09:50,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:09:50,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 19:09:50,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 19:09:50,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 283 [2023-08-29 19:09:50,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 72 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) [2023-08-29 19:09:50,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:09:50,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 283 [2023-08-29 19:09:50,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:09:50,349 INFO L130 PetriNetUnfolder]: 95/231 cut-off events. [2023-08-29 19:09:50,349 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-29 19:09:50,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 231 events. 95/231 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1009 event pairs, 35 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 434. Up to 113 conditions per place. [2023-08-29 19:09:50,350 INFO L137 encePairwiseOnDemand]: 278/283 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2023-08-29 19:09:50,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 156 flow [2023-08-29 19:09:50,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 19:09:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 19:09:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 770 transitions. [2023-08-29 19:09:50,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4534746760895171 [2023-08-29 19:09:50,353 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 770 transitions. [2023-08-29 19:09:50,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 770 transitions. [2023-08-29 19:09:50,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:09:50,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 770 transitions. [2023-08-29 19:09:50,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.33333333333334) internal successors, (770), 6 states have internal predecessors, (770), 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) [2023-08-29 19:09:50,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 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) [2023-08-29 19:09:50,359 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 283.0) internal successors, (1981), 7 states have internal predecessors, (1981), 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) [2023-08-29 19:09:50,359 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 72 flow. Second operand 6 states and 770 transitions. [2023-08-29 19:09:50,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 156 flow [2023-08-29 19:09:50,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 149 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:09:50,361 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-08-29 19:09:50,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-08-29 19:09:50,362 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -14 predicate places. [2023-08-29 19:09:50,362 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-08-29 19:09:50,362 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) [2023-08-29 19:09:50,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2023-08-29 19:09:50,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-08-29 19:09:50,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-08-29 19:09:50,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-08-29 19:09:50,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-08-29 19:09:50,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-08-29 19:09:50,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-08-29 19:09:50,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-08-29 19:09:50,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2023-08-29 19:09:50,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-08-29 19:09:50,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-08-29 19:09:50,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-08-29 19:09:50,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-08-29 19:09:50,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-08-29 19:09:50,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-08-29 19:09:50,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-08-29 19:09:50,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-08-29 19:09:50,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2023-08-29 19:09:50,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2023-08-29 19:09:50,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2023-08-29 19:09:50,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2023-08-29 19:09:50,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-08-29 19:09:50,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-08-29 19:09:50,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-08-29 19:09:50,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-08-29 19:09:50,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-08-29 19:09:50,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-08-29 19:09:50,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-08-29 19:09:50,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-08-29 19:09:50,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 19:09:50,371 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 19:09:50,375 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 19:09:50,375 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 19:09:50,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:09:50 BasicIcfg [2023-08-29 19:09:50,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 19:09:50,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 19:09:50,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 19:09:50,379 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 19:09:50,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:09:44" (3/4) ... [2023-08-29 19:09:50,381 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 19:09:50,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 19:09:50,385 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 19:09:50,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-29 19:09:50,389 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 19:09:50,390 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 19:09:50,390 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 19:09:50,421 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 19:09:50,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 19:09:50,422 INFO L158 Benchmark]: Toolchain (without parser) took 7502.69ms. Allocated memory was 58.7MB in the beginning and 104.9MB in the end (delta: 46.1MB). Free memory was 36.3MB in the beginning and 43.4MB in the end (delta: -7.1MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2023-08-29 19:09:50,422 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 26.4MB in the beginning and 26.4MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 19:09:50,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.44ms. Allocated memory is still 58.7MB. Free memory was 36.2MB in the beginning and 37.6MB in the end (delta: -1.4MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-08-29 19:09:50,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.04ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 35.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 19:09:50,423 INFO L158 Benchmark]: Boogie Preprocessor took 58.22ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 32.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 19:09:50,424 INFO L158 Benchmark]: RCFGBuilder took 782.52ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 32.9MB in the beginning and 37.9MB in the end (delta: -4.9MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-08-29 19:09:50,424 INFO L158 Benchmark]: TraceAbstraction took 6289.95ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 37.1MB in the beginning and 46.7MB in the end (delta: -9.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-08-29 19:09:50,424 INFO L158 Benchmark]: Witness Printer took 42.84ms. Allocated memory is still 104.9MB. Free memory was 46.7MB in the beginning and 43.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 19:09:50,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 26.4MB in the beginning and 26.4MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.44ms. Allocated memory is still 58.7MB. Free memory was 36.2MB in the beginning and 37.6MB in the end (delta: -1.4MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.04ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 35.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.22ms. Allocated memory is still 58.7MB. Free memory was 35.1MB in the beginning and 32.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 782.52ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 32.9MB in the beginning and 37.9MB in the end (delta: -4.9MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6289.95ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 37.1MB in the beginning and 46.7MB in the end (delta: -9.6MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 42.84ms. Allocated memory is still 104.9MB. Free memory was 46.7MB in the beginning and 43.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 141 PlacesBefore, 51 PlacesAfterwards, 142 TransitionsBefore, 49 TransitionsAfterwards, 1836 CoEnabledTransitionPairs, 8 FixpointIterations, 82 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 124 TotalNumberOfCompositions, 12232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5186, independent: 4685, independent conditional: 0, independent unconditional: 4685, dependent: 501, dependent conditional: 0, dependent unconditional: 501, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 980, independent: 928, independent conditional: 0, independent unconditional: 928, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5186, independent: 3757, independent conditional: 0, independent unconditional: 3757, dependent: 449, dependent conditional: 0, dependent unconditional: 449, unknown: 980, unknown conditional: 0, unknown unconditional: 980] , Statistics on independence cache: Total cache size (in pairs): 290, Positive cache size: 260, Positive conditional cache size: 0, Positive unconditional cache size: 260, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, 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: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: 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: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: 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, 187 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: 6.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 173 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 3 mSDtfsCounter, 363 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=110occurred 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! [2023-08-29 19:09:50,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE