./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/mult-comm.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/mult-comm.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 a0efdc82161997cbf03fd7c104a0f7adcc3337af1f91e29fd2b7831e9d52958e --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 19:02:34,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 19:02:34,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 19:02:34,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 19:02:34,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 19:02:34,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 19:02:34,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 19:02:34,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 19:02:34,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 19:02:34,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 19:02:34,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 19:02:34,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 19:02:34,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 19:02:34,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 19:02:34,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 19:02:34,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 19:02:34,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 19:02:34,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 19:02:34,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 19:02:34,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 19:02:34,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 19:02:34,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 19:02:34,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 19:02:34,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 19:02:34,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 19:02:34,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 19:02:34,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 19:02:34,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 19:02:34,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 19:02:34,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 19:02:34,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 19:02:34,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 19:02:34,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 19:02:34,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 19:02:34,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 19:02:34,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 19:02:34,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 19:02:34,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 19:02:34,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 19:02:34,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 19:02:34,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 19:02:34,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 19:02:34,452 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 19:02:34,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 19:02:34,453 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 19:02:34,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 19:02:34,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 19:02:34,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 19:02:34,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 19:02:34,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 19:02:34,455 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 19:02:34,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 19:02:34,456 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 19:02:34,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 19:02:34,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 19:02:34,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 19:02:34,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 19:02:34,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 19:02:34,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 19:02:34,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 19:02:34,458 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 19:02:34,458 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 19:02:34,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 19:02:34,458 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 19:02:34,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 19:02:34,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 19:02:34,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 19:02:34,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 19:02:34,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:02:34,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 19:02:34,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 19:02:34,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 19:02:34,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 19:02:34,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 19:02:34,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 19:02:34,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 19:02:34,461 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 19:02:34,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 19:02:34,461 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 19:02:34,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0efdc82161997cbf03fd7c104a0f7adcc3337af1f91e29fd2b7831e9d52958e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 19:02:34,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 19:02:34,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 19:02:34,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 19:02:34,760 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 19:02:34,761 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 19:02:34,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-comm.wvr.c [2023-08-29 19:02:35,902 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 19:02:36,106 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 19:02:36,107 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-comm.wvr.c [2023-08-29 19:02:36,115 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0ad52326/649ca8111d8841b2a9bf836cb6830882/FLAGfd64bee17 [2023-08-29 19:02:36,132 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0ad52326/649ca8111d8841b2a9bf836cb6830882 [2023-08-29 19:02:36,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 19:02:36,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 19:02:36,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 19:02:36,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 19:02:36,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 19:02:36,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d498c86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36, skipping insertion in model container [2023-08-29 19:02:36,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 19:02:36,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 19:02:36,323 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/mult-comm.wvr.c[1910,1923] [2023-08-29 19:02:36,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:02:36,334 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 19:02:36,366 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/mult-comm.wvr.c[1910,1923] [2023-08-29 19:02:36,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 19:02:36,383 INFO L208 MainTranslator]: Completed translation [2023-08-29 19:02:36,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36 WrapperNode [2023-08-29 19:02:36,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 19:02:36,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 19:02:36,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 19:02:36,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 19:02:36,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,433 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-08-29 19:02:36,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 19:02:36,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 19:02:36,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 19:02:36,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 19:02:36,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,474 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 19:02:36,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 19:02:36,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 19:02:36,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 19:02:36,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (1/1) ... [2023-08-29 19:02:36,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 19:02:36,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 19:02:36,508 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 19:02:36,533 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 19:02:36,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 19:02:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 19:02:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 19:02:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 19:02:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 19:02:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 19:02:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 19:02:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 19:02:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 19:02:36,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 19:02:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 19:02:36,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 19:02:36,552 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 19:02:36,651 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 19:02:36,653 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 19:02:36,889 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 19:02:36,896 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 19:02:36,896 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 19:02:36,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:02:36 BoogieIcfgContainer [2023-08-29 19:02:36,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 19:02:36,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 19:02:36,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 19:02:36,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 19:02:36,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:02:36" (1/3) ... [2023-08-29 19:02:36,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472f6dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:02:36, skipping insertion in model container [2023-08-29 19:02:36,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:02:36" (2/3) ... [2023-08-29 19:02:36,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472f6dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:02:36, skipping insertion in model container [2023-08-29 19:02:36,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:02:36" (3/3) ... [2023-08-29 19:02:36,905 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-comm.wvr.c [2023-08-29 19:02:36,912 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 19:02:36,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 19:02:36,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-29 19:02:36,921 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 19:02:36,986 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 19:02:37,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 131 transitions, 278 flow [2023-08-29 19:02:37,062 INFO L130 PetriNetUnfolder]: 5/129 cut-off events. [2023-08-29 19:02:37,062 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 19:02:37,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 129 events. 5/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 152 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-29 19:02:37,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 131 transitions, 278 flow [2023-08-29 19:02:37,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 114 transitions, 240 flow [2023-08-29 19:02:37,074 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 19:02:37,083 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 114 transitions, 240 flow [2023-08-29 19:02:37,085 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 114 transitions, 240 flow [2023-08-29 19:02:37,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 114 transitions, 240 flow [2023-08-29 19:02:37,115 INFO L130 PetriNetUnfolder]: 4/114 cut-off events. [2023-08-29 19:02:37,115 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 19:02:37,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 114 events. 4/114 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 149 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-08-29 19:02:37,118 INFO L119 LiptonReduction]: Number of co-enabled transitions 2736 [2023-08-29 19:02:39,549 INFO L134 LiptonReduction]: Checked pairs total: 6277 [2023-08-29 19:02:39,549 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-08-29 19:02:39,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 19:02:39,567 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;@35a38716, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 19:02:39,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-29 19:02:39,568 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 19:02:39,569 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 19:02:39,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:02:39,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 19:02:39,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 19:02:39,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:02:39,574 INFO L85 PathProgramCache]: Analyzing trace with hash 472, now seen corresponding path program 1 times [2023-08-29 19:02:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:02:39,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393183468] [2023-08-29 19:02:39,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:02:39,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:02:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:02:39,662 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 19:02:39,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:02:39,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393183468] [2023-08-29 19:02:39,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393183468] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:02:39,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:02:39,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 19:02:39,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20032199] [2023-08-29 19:02:39,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:02:39,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 19:02:39,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:02:39,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 19:02:39,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 19:02:39,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 242 [2023-08-29 19:02:39,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 84 flow. Second operand has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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 19:02:39,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:02:39,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 242 [2023-08-29 19:02:39,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:02:39,782 INFO L130 PetriNetUnfolder]: 109/237 cut-off events. [2023-08-29 19:02:39,782 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-29 19:02:39,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 237 events. 109/237 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1042 event pairs, 65 based on Foata normal form. 44/233 useless extension candidates. Maximal degree in co-relation 372. Up to 178 conditions per place. [2023-08-29 19:02:39,790 INFO L137 encePairwiseOnDemand]: 230/242 looper letters, 15 selfloop transitions, 0 changer transitions 1/24 dead transitions. [2023-08-29 19:02:39,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 92 flow [2023-08-29 19:02:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 19:02:39,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 19:02:39,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 274 transitions. [2023-08-29 19:02:39,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661157024793388 [2023-08-29 19:02:39,810 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 274 transitions. [2023-08-29 19:02:39,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 274 transitions. [2023-08-29 19:02:39,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:02:39,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 274 transitions. [2023-08-29 19:02:39,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 137.0) internal successors, (274), 2 states have internal predecessors, (274), 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 19:02:39,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 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 19:02:39,824 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 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 19:02:39,826 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 84 flow. Second operand 2 states and 274 transitions. [2023-08-29 19:02:39,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 92 flow [2023-08-29 19:02:39,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 84 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 19:02:39,830 INFO L231 Difference]: Finished difference. Result has 26 places, 23 transitions, 49 flow [2023-08-29 19:02:39,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=49, PETRI_PLACES=26, PETRI_TRANSITIONS=23} [2023-08-29 19:02:39,837 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -13 predicate places. [2023-08-29 19:02:39,838 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 23 transitions, 49 flow [2023-08-29 19:02:39,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.5) internal successors, (247), 2 states have internal predecessors, (247), 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 19:02:39,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:02:39,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 19:02:39,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 19:02:39,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 19:02:39,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:02:39,843 INFO L85 PathProgramCache]: Analyzing trace with hash 450660430, now seen corresponding path program 1 times [2023-08-29 19:02:39,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:02:39,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138249210] [2023-08-29 19:02:39,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:02:39,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:02:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:02:39,952 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 19:02:39,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:02:39,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138249210] [2023-08-29 19:02:39,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138249210] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:02:39,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:02:39,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:02:39,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802315179] [2023-08-29 19:02:39,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:02:39,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:02:39,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:02:39,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:02:39,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:02:39,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 242 [2023-08-29 19:02:39,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 19:02:39,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:02:39,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 242 [2023-08-29 19:02:39,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:02:40,019 INFO L130 PetriNetUnfolder]: 131/258 cut-off events. [2023-08-29 19:02:40,019 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 19:02:40,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 258 events. 131/258 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1063 event pairs, 22 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 483. Up to 207 conditions per place. [2023-08-29 19:02:40,021 INFO L137 encePairwiseOnDemand]: 238/242 looper letters, 21 selfloop transitions, 2 changer transitions 0/28 dead transitions. [2023-08-29 19:02:40,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 28 transitions, 106 flow [2023-08-29 19:02:40,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:02:40,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:02:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-29 19:02:40,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137741046831956 [2023-08-29 19:02:40,023 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-29 19:02:40,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-29 19:02:40,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:02:40,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-29 19:02:40,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 19:02:40,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 19:02:40,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 19:02:40,027 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 3 states and 373 transitions. [2023-08-29 19:02:40,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 28 transitions, 106 flow [2023-08-29 19:02:40,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 106 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:02:40,029 INFO L231 Difference]: Finished difference. Result has 26 places, 23 transitions, 59 flow [2023-08-29 19:02:40,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=26, PETRI_TRANSITIONS=23} [2023-08-29 19:02:40,030 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -13 predicate places. [2023-08-29 19:02:40,030 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 23 transitions, 59 flow [2023-08-29 19:02:40,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 19:02:40,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:02:40,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:02:40,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 19:02:40,031 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 19:02:40,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:02:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash -706927302, now seen corresponding path program 1 times [2023-08-29 19:02:40,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:02:40,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920545762] [2023-08-29 19:02:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:02:40,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:02:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:02:40,080 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 19:02:40,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:02:40,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920545762] [2023-08-29 19:02:40,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920545762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:02:40,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:02:40,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:02:40,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533040005] [2023-08-29 19:02:40,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:02:40,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:02:40,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:02:40,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:02:40,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:02:40,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 242 [2023-08-29 19:02:40,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 19:02:40,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:02:40,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 242 [2023-08-29 19:02:40,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:02:40,143 INFO L130 PetriNetUnfolder]: 155/273 cut-off events. [2023-08-29 19:02:40,144 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-29 19:02:40,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 273 events. 155/273 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 987 event pairs, 16 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 573. Up to 239 conditions per place. [2023-08-29 19:02:40,145 INFO L137 encePairwiseOnDemand]: 238/242 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-08-29 19:02:40,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 30 transitions, 127 flow [2023-08-29 19:02:40,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:02:40,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:02:40,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2023-08-29 19:02:40,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5165289256198347 [2023-08-29 19:02:40,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2023-08-29 19:02:40,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2023-08-29 19:02:40,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:02:40,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2023-08-29 19:02:40,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 19:02:40,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 19:02:40,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 19:02:40,151 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 59 flow. Second operand 3 states and 375 transitions. [2023-08-29 19:02:40,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 30 transitions, 127 flow [2023-08-29 19:02:40,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 30 transitions, 127 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:02:40,152 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2023-08-29 19:02:40,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2023-08-29 19:02:40,153 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -13 predicate places. [2023-08-29 19:02:40,153 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2023-08-29 19:02:40,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 19:02:40,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-08-29 19:02:40,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-08-29 19:02:40,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-08-29 19:02:40,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-08-29 19:02:40,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-08-29 19:02:40,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-08-29 19:02:40,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-08-29 19:02:40,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-08-29 19:02:40,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-08-29 19:02:40,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-08-29 19:02:40,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-08-29 19:02:40,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-08-29 19:02:40,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-08-29 19:02:40,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-08-29 19:02:40,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2023-08-29 19:02:40,159 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2023-08-29 19:02:40,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-08-29 19:02:40,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-08-29 19:02:40,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-08-29 19:02:40,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-08-29 19:02:40,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-08-29 19:02:40,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-08-29 19:02:40,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-08-29 19:02:40,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-08-29 19:02:40,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 19:02:40,161 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 19:02:40,166 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 19:02:40,166 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 19:02:40,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:02:40 BasicIcfg [2023-08-29 19:02:40,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 19:02:40,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 19:02:40,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 19:02:40,170 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 19:02:40,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:02:36" (3/4) ... [2023-08-29 19:02:40,173 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 19:02:40,177 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 19:02:40,178 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 19:02:40,181 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-29 19:02:40,181 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 19:02:40,181 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 19:02:40,182 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 19:02:40,249 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 19:02:40,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 19:02:40,250 INFO L158 Benchmark]: Toolchain (without parser) took 4114.02ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 32.9MB in the beginning and 74.8MB in the end (delta: -41.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2023-08-29 19:02:40,250 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 44.7MB in the beginning and 44.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 19:02:40,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.73ms. Allocated memory is still 67.1MB. Free memory was 32.7MB in the beginning and 39.5MB in the end (delta: -6.8MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2023-08-29 19:02:40,251 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.24ms. Allocated memory is still 67.1MB. Free memory was 39.5MB in the beginning and 37.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 19:02:40,251 INFO L158 Benchmark]: Boogie Preprocessor took 44.59ms. Allocated memory is still 67.1MB. Free memory was 37.9MB in the beginning and 36.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 19:02:40,251 INFO L158 Benchmark]: RCFGBuilder took 417.45ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 36.3MB in the beginning and 53.1MB in the end (delta: -16.8MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-08-29 19:02:40,252 INFO L158 Benchmark]: TraceAbstraction took 3269.98ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 52.3MB in the beginning and 55.2MB in the end (delta: -2.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2023-08-29 19:02:40,252 INFO L158 Benchmark]: Witness Printer took 79.19ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 74.8MB in the end (delta: -19.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 19:02:40,254 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 67.1MB. Free memory was 44.7MB in the beginning and 44.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.73ms. Allocated memory is still 67.1MB. Free memory was 32.7MB in the beginning and 39.5MB in the end (delta: -6.8MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.24ms. Allocated memory is still 67.1MB. Free memory was 39.5MB in the beginning and 37.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.59ms. Allocated memory is still 67.1MB. Free memory was 37.9MB in the beginning and 36.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 417.45ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 36.3MB in the beginning and 53.1MB in the end (delta: -16.8MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3269.98ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 52.3MB in the beginning and 55.2MB in the end (delta: -2.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Witness Printer took 79.19ms. Allocated memory is still 98.6MB. Free memory was 55.2MB in the beginning and 74.8MB in the end (delta: -19.6MB). 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: 2.5s, 117 PlacesBefore, 39 PlacesAfterwards, 114 TransitionsBefore, 36 TransitionsAfterwards, 2736 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 0 ChoiceCompositions, 111 TotalNumberOfCompositions, 6277 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3612, independent: 3437, independent conditional: 0, independent unconditional: 3437, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1618, independent: 1579, independent conditional: 0, independent unconditional: 1579, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3612, independent: 1858, independent conditional: 0, independent unconditional: 1858, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 1618, unknown conditional: 0, unknown unconditional: 1618] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: 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: 61]: 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: 66]: 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: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: 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, 175 locations, 24 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: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 12 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 19:02:40,281 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