./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i --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/goblint-regression/02-base_25-malloc_race_cp.i -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 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --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 17:27:32,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:27:32,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:27:32,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:27:32,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:27:32,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:27:32,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:27:32,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:27:32,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:27:32,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:27:32,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:27:32,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:27:32,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:27:32,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:27:32,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:27:32,372 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:27:32,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:27:32,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:27:32,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:27:32,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:27:32,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:27:32,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:27:32,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:27:32,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:27:32,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:27:32,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:27:32,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:27:32,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:27:32,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:27:32,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:27:32,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:27:32,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:27:32,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:27:32,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:27:32,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:27:32,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:27:32,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:27:32,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:27:32,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:27:32,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:27:32,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:27:32,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:27:32,440 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:27:32,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:27:32,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:27:32,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:27:32,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:27:32,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:27:32,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:27:32,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:27:32,443 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:27:32,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:27:32,444 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:27:32,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:27:32,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:27:32,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:27:32,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:27:32,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:27:32,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:27:32,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:27:32,445 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:27:32,446 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:27:32,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:27:32,446 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:27:32,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:27:32,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:27:32,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:27:32,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:27:32,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:27:32,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:27:32,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:27:32,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:27:32,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:27:32,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:27:32,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:27:32,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:27:32,448 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:27:32,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:27:32,449 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:27:32,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:27:32,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:27:32,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:27:32,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:27:32,737 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:27:32,737 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:27:32,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i [2023-08-29 17:27:33,808 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:27:34,047 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:27:34,048 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i [2023-08-29 17:27:34,061 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f31bc2ea/0741a250d2bb40078959f702b7595581/FLAGf20f491b1 [2023-08-29 17:27:34,075 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f31bc2ea/0741a250d2bb40078959f702b7595581 [2023-08-29 17:27:34,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:27:34,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:27:34,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:27:34,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:27:34,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:27:34,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4aaea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34, skipping insertion in model container [2023-08-29 17:27:34,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:27:34,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:27:34,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:27:34,701 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:27:34,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:27:34,819 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:27:34,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34 WrapperNode [2023-08-29 17:27:34,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:27:34,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:27:34,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:27:34,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:27:34,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,883 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-08-29 17:27:34,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:27:34,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:27:34,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:27:34,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:27:34,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,944 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:27:34,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:27:34,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:27:34,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:27:34,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (1/1) ... [2023-08-29 17:27:34,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:27:34,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:27:34,988 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 17:27:34,995 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 17:27:35,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:27:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:27:35,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:27:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:27:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:27:35,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:27:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:27:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:27:35,029 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:27:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:27:35,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:27:35,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:27:35,030 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 17:27:35,184 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:27:35,185 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:27:35,379 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:27:35,385 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:27:35,385 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:27:35,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:35 BoogieIcfgContainer [2023-08-29 17:27:35,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:27:35,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:27:35,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:27:35,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:27:35,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:27:34" (1/3) ... [2023-08-29 17:27:35,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a4f139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:27:35, skipping insertion in model container [2023-08-29 17:27:35,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:27:34" (2/3) ... [2023-08-29 17:27:35,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a4f139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:27:35, skipping insertion in model container [2023-08-29 17:27:35,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:35" (3/3) ... [2023-08-29 17:27:35,403 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2023-08-29 17:27:35,414 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:27:35,423 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:27:35,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-29 17:27:35,423 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:27:35,503 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:27:35,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 102 transitions, 209 flow [2023-08-29 17:27:35,608 INFO L130 PetriNetUnfolder]: 0/101 cut-off events. [2023-08-29 17:27:35,608 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:35,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:27:35,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 102 transitions, 209 flow [2023-08-29 17:27:35,616 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 101 transitions, 205 flow [2023-08-29 17:27:35,619 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:27:35,631 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 101 transitions, 205 flow [2023-08-29 17:27:35,635 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 101 transitions, 205 flow [2023-08-29 17:27:35,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 101 transitions, 205 flow [2023-08-29 17:27:35,669 INFO L130 PetriNetUnfolder]: 0/101 cut-off events. [2023-08-29 17:27:35,670 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:35,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:27:35,672 INFO L119 LiptonReduction]: Number of co-enabled transitions 1860 [2023-08-29 17:27:38,324 INFO L134 LiptonReduction]: Checked pairs total: 15445 [2023-08-29 17:27:38,325 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-08-29 17:27:38,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:27:38,342 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;@3e4839d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:27:38,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-29 17:27:38,343 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:27:38,343 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:38,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:38,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:27:38,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:38,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:38,348 INFO L85 PathProgramCache]: Analyzing trace with hash 336, now seen corresponding path program 1 times [2023-08-29 17:27:38,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:38,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776623046] [2023-08-29 17:27:38,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:38,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:38,486 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 17:27:38,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:38,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776623046] [2023-08-29 17:27:38,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776623046] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:38,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:38,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:27:38,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051136268] [2023-08-29 17:27:38,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:38,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:27:38,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:38,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:27:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:27:38,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 179 [2023-08-29 17:27:38,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 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 17:27:38,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:38,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 179 [2023-08-29 17:27:38,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:38,594 INFO L130 PetriNetUnfolder]: 35/200 cut-off events. [2023-08-29 17:27:38,594 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:38,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 200 events. 35/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 841 event pairs, 35 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 280. Up to 85 conditions per place. [2023-08-29 17:27:38,599 INFO L137 encePairwiseOnDemand]: 175/179 looper letters, 14 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2023-08-29 17:27:38,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 111 flow [2023-08-29 17:27:38,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:27:38,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:27:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 220 transitions. [2023-08-29 17:27:38,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6145251396648045 [2023-08-29 17:27:38,613 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 220 transitions. [2023-08-29 17:27:38,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 220 transitions. [2023-08-29 17:27:38,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:38,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 220 transitions. [2023-08-29 17:27:38,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 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 17:27:38,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 17:27:38,628 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 17:27:38,630 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 91 flow. Second operand 2 states and 220 transitions. [2023-08-29 17:27:38,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 111 flow [2023-08-29 17:27:38,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 40 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:27:38,634 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 82 flow [2023-08-29 17:27:38,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2023-08-29 17:27:38,640 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-08-29 17:27:38,641 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 82 flow [2023-08-29 17:27:38,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 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 17:27:38,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:38,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:27:38,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:27:38,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:38,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:38,643 INFO L85 PathProgramCache]: Analyzing trace with hash 324012270, now seen corresponding path program 1 times [2023-08-29 17:27:38,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:38,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334128649] [2023-08-29 17:27:38,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:38,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:38,757 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 17:27:38,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:38,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334128649] [2023-08-29 17:27:38,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334128649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:38,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:38,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:27:38,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030542723] [2023-08-29 17:27:38,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:38,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:27:38,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:38,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:27:38,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:27:38,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 179 [2023-08-29 17:27:38,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 17:27:38,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:38,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 179 [2023-08-29 17:27:38,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:38,815 INFO L130 PetriNetUnfolder]: 48/231 cut-off events. [2023-08-29 17:27:38,815 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:27:38,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 231 events. 48/231 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1016 event pairs, 31 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 345. Up to 106 conditions per place. [2023-08-29 17:27:38,817 INFO L137 encePairwiseOnDemand]: 175/179 looper letters, 18 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-08-29 17:27:38,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 126 flow [2023-08-29 17:27:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:27:38,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:27:38,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-08-29 17:27:38,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661080074487895 [2023-08-29 17:27:38,820 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-08-29 17:27:38,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-08-29 17:27:38,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:38,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-08-29 17:27:38,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 17:27:38,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 17:27:38,830 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 17:27:38,831 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 82 flow. Second operand 3 states and 304 transitions. [2023-08-29 17:27:38,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 126 flow [2023-08-29 17:27:38,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:38,845 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 92 flow [2023-08-29 17:27:38,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2023-08-29 17:27:38,846 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-29 17:27:38,846 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 92 flow [2023-08-29 17:27:38,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 17:27:38,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:38,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:38,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:27:38,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:38,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:38,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1621764314, now seen corresponding path program 1 times [2023-08-29 17:27:38,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:38,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75418229] [2023-08-29 17:27:38,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:38,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:39,317 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 17:27:39,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:39,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75418229] [2023-08-29 17:27:39,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75418229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:39,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:39,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:27:39,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456746420] [2023-08-29 17:27:39,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:39,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:27:39,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:39,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:27:39,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:27:39,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 179 [2023-08-29 17:27:39,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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 17:27:39,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:39,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 179 [2023-08-29 17:27:39,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:39,588 INFO L130 PetriNetUnfolder]: 258/616 cut-off events. [2023-08-29 17:27:39,589 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-08-29 17:27:39,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 616 events. 258/616 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2922 event pairs, 127 based on Foata normal form. 0/596 useless extension candidates. Maximal degree in co-relation 1203. Up to 421 conditions per place. [2023-08-29 17:27:39,593 INFO L137 encePairwiseOnDemand]: 164/179 looper letters, 63 selfloop transitions, 37 changer transitions 0/108 dead transitions. [2023-08-29 17:27:39,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 108 transitions, 436 flow [2023-08-29 17:27:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:27:39,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:27:39,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2023-08-29 17:27:39,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5279329608938548 [2023-08-29 17:27:39,597 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 567 transitions. [2023-08-29 17:27:39,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 567 transitions. [2023-08-29 17:27:39,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:39,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 567 transitions. [2023-08-29 17:27:39,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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 17:27:39,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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 17:27:39,602 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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 17:27:39,602 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 92 flow. Second operand 6 states and 567 transitions. [2023-08-29 17:27:39,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 108 transitions, 436 flow [2023-08-29 17:27:39,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 108 transitions, 436 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:39,605 INFO L231 Difference]: Finished difference. Result has 54 places, 78 transitions, 325 flow [2023-08-29 17:27:39,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=54, PETRI_TRANSITIONS=78} [2023-08-29 17:27:39,606 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2023-08-29 17:27:39,606 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 78 transitions, 325 flow [2023-08-29 17:27:39,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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 17:27:39,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:39,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:39,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:27:39,607 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:39,608 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:39,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1669353373, now seen corresponding path program 1 times [2023-08-29 17:27:39,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:39,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184810859] [2023-08-29 17:27:39,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:39,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:39,822 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 17:27:39,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:39,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184810859] [2023-08-29 17:27:39,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184810859] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:39,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:39,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:27:39,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516342448] [2023-08-29 17:27:39,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:39,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:27:39,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:39,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:27:39,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:27:39,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 179 [2023-08-29 17:27:39,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 78 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 17:27:39,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:39,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 179 [2023-08-29 17:27:39,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:40,101 INFO L130 PetriNetUnfolder]: 342/881 cut-off events. [2023-08-29 17:27:40,102 INFO L131 PetriNetUnfolder]: For 283/302 co-relation queries the response was YES. [2023-08-29 17:27:40,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2278 conditions, 881 events. 342/881 cut-off events. For 283/302 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5114 event pairs, 46 based on Foata normal form. 25/894 useless extension candidates. Maximal degree in co-relation 2269. Up to 368 conditions per place. [2023-08-29 17:27:40,107 INFO L137 encePairwiseOnDemand]: 164/179 looper letters, 86 selfloop transitions, 48 changer transitions 0/162 dead transitions. [2023-08-29 17:27:40,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 162 transitions, 857 flow [2023-08-29 17:27:40,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:27:40,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:27:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 611 transitions. [2023-08-29 17:27:40,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.568901303538175 [2023-08-29 17:27:40,109 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 611 transitions. [2023-08-29 17:27:40,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 611 transitions. [2023-08-29 17:27:40,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:40,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 611 transitions. [2023-08-29 17:27:40,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 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 17:27:40,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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 17:27:40,114 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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 17:27:40,114 INFO L175 Difference]: Start difference. First operand has 54 places, 78 transitions, 325 flow. Second operand 6 states and 611 transitions. [2023-08-29 17:27:40,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 162 transitions, 857 flow [2023-08-29 17:27:40,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 162 transitions, 857 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:40,120 INFO L231 Difference]: Finished difference. Result has 63 places, 120 transitions, 671 flow [2023-08-29 17:27:40,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=671, PETRI_PLACES=63, PETRI_TRANSITIONS=120} [2023-08-29 17:27:40,121 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2023-08-29 17:27:40,121 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 120 transitions, 671 flow [2023-08-29 17:27:40,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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 17:27:40,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:40,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:40,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:27:40,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:40,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:40,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1413290661, now seen corresponding path program 1 times [2023-08-29 17:27:40,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:40,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493077865] [2023-08-29 17:27:40,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:40,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:40,191 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 17:27:40,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:40,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493077865] [2023-08-29 17:27:40,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493077865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:40,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:40,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 17:27:40,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386293294] [2023-08-29 17:27:40,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:40,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:27:40,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:40,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:27:40,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:27:40,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 179 [2023-08-29 17:27:40,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 120 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 17:27:40,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:40,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 179 [2023-08-29 17:27:40,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:40,242 INFO L130 PetriNetUnfolder]: 40/176 cut-off events. [2023-08-29 17:27:40,243 INFO L131 PetriNetUnfolder]: For 108/112 co-relation queries the response was YES. [2023-08-29 17:27:40,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 176 events. 40/176 cut-off events. For 108/112 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 664 event pairs, 5 based on Foata normal form. 11/183 useless extension candidates. Maximal degree in co-relation 463. Up to 59 conditions per place. [2023-08-29 17:27:40,244 INFO L137 encePairwiseOnDemand]: 175/179 looper letters, 15 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2023-08-29 17:27:40,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 61 transitions, 313 flow [2023-08-29 17:27:40,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:27:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:27:40,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2023-08-29 17:27:40,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5679702048417132 [2023-08-29 17:27:40,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2023-08-29 17:27:40,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2023-08-29 17:27:40,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:40,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2023-08-29 17:27:40,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 17:27:40,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 17:27:40,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 17:27:40,249 INFO L175 Difference]: Start difference. First operand has 63 places, 120 transitions, 671 flow. Second operand 3 states and 305 transitions. [2023-08-29 17:27:40,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 61 transitions, 313 flow [2023-08-29 17:27:40,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 265 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-08-29 17:27:40,252 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 233 flow [2023-08-29 17:27:40,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-08-29 17:27:40,253 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 9 predicate places. [2023-08-29 17:27:40,253 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 233 flow [2023-08-29 17:27:40,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 17:27:40,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:40,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:40,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:27:40,254 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:40,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:40,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1576726598, now seen corresponding path program 1 times [2023-08-29 17:27:40,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:40,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546432660] [2023-08-29 17:27:40,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:40,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:40,459 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 17:27:40,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:40,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546432660] [2023-08-29 17:27:40,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546432660] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:40,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:40,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:27:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576086868] [2023-08-29 17:27:40,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:40,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:27:40,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:40,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:27:40,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:27:40,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 179 [2023-08-29 17:27:40,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 17:27:40,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:40,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 179 [2023-08-29 17:27:40,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:40,621 INFO L130 PetriNetUnfolder]: 106/308 cut-off events. [2023-08-29 17:27:40,621 INFO L131 PetriNetUnfolder]: For 98/100 co-relation queries the response was YES. [2023-08-29 17:27:40,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 308 events. 106/308 cut-off events. For 98/100 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1213 event pairs, 35 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 819. Up to 246 conditions per place. [2023-08-29 17:27:40,623 INFO L137 encePairwiseOnDemand]: 169/179 looper letters, 52 selfloop transitions, 21 changer transitions 4/84 dead transitions. [2023-08-29 17:27:40,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 467 flow [2023-08-29 17:27:40,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:27:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:27:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 529 transitions. [2023-08-29 17:27:40,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925512104283054 [2023-08-29 17:27:40,625 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 529 transitions. [2023-08-29 17:27:40,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 529 transitions. [2023-08-29 17:27:40,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:40,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 529 transitions. [2023-08-29 17:27:40,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 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 17:27:40,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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 17:27:40,629 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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 17:27:40,629 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 233 flow. Second operand 6 states and 529 transitions. [2023-08-29 17:27:40,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 467 flow [2023-08-29 17:27:40,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 84 transitions, 463 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:27:40,632 INFO L231 Difference]: Finished difference. Result has 65 places, 80 transitions, 385 flow [2023-08-29 17:27:40,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=65, PETRI_TRANSITIONS=80} [2023-08-29 17:27:40,633 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2023-08-29 17:27:40,633 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 80 transitions, 385 flow [2023-08-29 17:27:40,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 17:27:40,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:40,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:40,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:27:40,634 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:40,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:40,635 INFO L85 PathProgramCache]: Analyzing trace with hash -298521993, now seen corresponding path program 1 times [2023-08-29 17:27:40,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:40,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020871451] [2023-08-29 17:27:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:40,836 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 17:27:40,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:40,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020871451] [2023-08-29 17:27:40,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020871451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:40,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:40,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:27:40,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639750521] [2023-08-29 17:27:40,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:40,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:27:40,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:40,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:27:40,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:27:40,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 179 [2023-08-29 17:27:40,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 80 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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 17:27:40,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:40,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 179 [2023-08-29 17:27:40,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:41,074 INFO L130 PetriNetUnfolder]: 162/434 cut-off events. [2023-08-29 17:27:41,075 INFO L131 PetriNetUnfolder]: For 212/214 co-relation queries the response was YES. [2023-08-29 17:27:41,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 434 events. 162/434 cut-off events. For 212/214 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1986 event pairs, 11 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 1395. Up to 273 conditions per place. [2023-08-29 17:27:41,077 INFO L137 encePairwiseOnDemand]: 165/179 looper letters, 73 selfloop transitions, 45 changer transitions 19/148 dead transitions. [2023-08-29 17:27:41,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 148 transitions, 949 flow [2023-08-29 17:27:41,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:27:41,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:27:41,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 591 transitions. [2023-08-29 17:27:41,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5502793296089385 [2023-08-29 17:27:41,080 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 591 transitions. [2023-08-29 17:27:41,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 591 transitions. [2023-08-29 17:27:41,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:41,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 591 transitions. [2023-08-29 17:27:41,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 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 17:27:41,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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 17:27:41,083 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 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 17:27:41,084 INFO L175 Difference]: Start difference. First operand has 65 places, 80 transitions, 385 flow. Second operand 6 states and 591 transitions. [2023-08-29 17:27:41,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 148 transitions, 949 flow [2023-08-29 17:27:41,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 148 transitions, 917 flow, removed 16 selfloop flow, removed 0 redundant places. [2023-08-29 17:27:41,088 INFO L231 Difference]: Finished difference. Result has 75 places, 113 transitions, 719 flow [2023-08-29 17:27:41,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=719, PETRI_PLACES=75, PETRI_TRANSITIONS=113} [2023-08-29 17:27:41,089 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2023-08-29 17:27:41,089 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 113 transitions, 719 flow [2023-08-29 17:27:41,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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 17:27:41,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:41,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:41,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:27:41,090 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:41,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:41,091 INFO L85 PathProgramCache]: Analyzing trace with hash 693231900, now seen corresponding path program 1 times [2023-08-29 17:27:41,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:41,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623164256] [2023-08-29 17:27:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:41,508 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 17:27:41,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:41,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623164256] [2023-08-29 17:27:41,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623164256] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:41,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:41,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 17:27:41,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352039901] [2023-08-29 17:27:41,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:41,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 17:27:41,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:41,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 17:27:41,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-29 17:27:41,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 179 [2023-08-29 17:27:41,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 113 transitions, 719 flow. Second operand has 8 states, 8 states have (on average 77.25) internal successors, (618), 8 states have internal predecessors, (618), 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 17:27:41,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:41,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 179 [2023-08-29 17:27:41,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:41,746 INFO L130 PetriNetUnfolder]: 143/378 cut-off events. [2023-08-29 17:27:41,747 INFO L131 PetriNetUnfolder]: For 551/560 co-relation queries the response was YES. [2023-08-29 17:27:41,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 378 events. 143/378 cut-off events. For 551/560 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1606 event pairs, 26 based on Foata normal form. 10/387 useless extension candidates. Maximal degree in co-relation 1586. Up to 243 conditions per place. [2023-08-29 17:27:41,750 INFO L137 encePairwiseOnDemand]: 172/179 looper letters, 102 selfloop transitions, 26 changer transitions 8/143 dead transitions. [2023-08-29 17:27:41,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 143 transitions, 1235 flow [2023-08-29 17:27:41,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 17:27:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 17:27:41,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 575 transitions. [2023-08-29 17:27:41,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4588986432561852 [2023-08-29 17:27:41,753 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 575 transitions. [2023-08-29 17:27:41,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 575 transitions. [2023-08-29 17:27:41,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:41,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 575 transitions. [2023-08-29 17:27:41,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.14285714285714) internal successors, (575), 7 states have internal predecessors, (575), 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 17:27:41,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 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 17:27:41,757 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 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 17:27:41,757 INFO L175 Difference]: Start difference. First operand has 75 places, 113 transitions, 719 flow. Second operand 7 states and 575 transitions. [2023-08-29 17:27:41,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 143 transitions, 1235 flow [2023-08-29 17:27:41,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 143 transitions, 1150 flow, removed 33 selfloop flow, removed 4 redundant places. [2023-08-29 17:27:41,771 INFO L231 Difference]: Finished difference. Result has 76 places, 112 transitions, 706 flow [2023-08-29 17:27:41,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=706, PETRI_PLACES=76, PETRI_TRANSITIONS=112} [2023-08-29 17:27:41,773 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 28 predicate places. [2023-08-29 17:27:41,773 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 112 transitions, 706 flow [2023-08-29 17:27:41,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 77.25) internal successors, (618), 8 states have internal predecessors, (618), 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 17:27:41,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:41,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:41,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:27:41,774 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:41,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1503443667, now seen corresponding path program 1 times [2023-08-29 17:27:41,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:41,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854118124] [2023-08-29 17:27:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:41,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:27:42,183 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 17:27:42,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:27:42,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854118124] [2023-08-29 17:27:42,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854118124] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:27:42,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:27:42,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 17:27:42,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774243878] [2023-08-29 17:27:42,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:27:42,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 17:27:42,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:27:42,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 17:27:42,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-29 17:27:42,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 179 [2023-08-29 17:27:42,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 112 transitions, 706 flow. Second operand has 8 states, 8 states have (on average 83.75) internal successors, (670), 8 states have internal predecessors, (670), 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 17:27:42,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:27:42,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 179 [2023-08-29 17:27:42,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:27:42,507 INFO L130 PetriNetUnfolder]: 146/371 cut-off events. [2023-08-29 17:27:42,508 INFO L131 PetriNetUnfolder]: For 496/504 co-relation queries the response was YES. [2023-08-29 17:27:42,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 371 events. 146/371 cut-off events. For 496/504 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1539 event pairs, 5 based on Foata normal form. 12/382 useless extension candidates. Maximal degree in co-relation 1567. Up to 137 conditions per place. [2023-08-29 17:27:42,511 INFO L137 encePairwiseOnDemand]: 168/179 looper letters, 99 selfloop transitions, 49 changer transitions 10/168 dead transitions. [2023-08-29 17:27:42,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 168 transitions, 1371 flow [2023-08-29 17:27:42,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 17:27:42,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 17:27:42,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 661 transitions. [2023-08-29 17:27:42,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5275339185953711 [2023-08-29 17:27:42,513 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 661 transitions. [2023-08-29 17:27:42,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 661 transitions. [2023-08-29 17:27:42,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:27:42,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 661 transitions. [2023-08-29 17:27:42,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.42857142857143) internal successors, (661), 7 states have internal predecessors, (661), 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 17:27:42,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 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 17:27:42,517 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 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 17:27:42,518 INFO L175 Difference]: Start difference. First operand has 76 places, 112 transitions, 706 flow. Second operand 7 states and 661 transitions. [2023-08-29 17:27:42,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 168 transitions, 1371 flow [2023-08-29 17:27:42,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 168 transitions, 1265 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 17:27:42,525 INFO L231 Difference]: Finished difference. Result has 80 places, 119 transitions, 880 flow [2023-08-29 17:27:42,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=880, PETRI_PLACES=80, PETRI_TRANSITIONS=119} [2023-08-29 17:27:42,526 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2023-08-29 17:27:42,526 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 119 transitions, 880 flow [2023-08-29 17:27:42,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 83.75) internal successors, (670), 8 states have internal predecessors, (670), 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 17:27:42,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:27:42,527 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:42,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:27:42,527 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 17:27:42,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:27:42,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1965372415, now seen corresponding path program 1 times [2023-08-29 17:27:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:27:42,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843466091] [2023-08-29 17:27:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:27:42,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:27:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:27:42,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:27:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:27:42,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:27:42,579 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:27:42,580 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-08-29 17:27:42,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-29 17:27:42,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-29 17:27:42,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-29 17:27:42,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-29 17:27:42,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-29 17:27:42,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-29 17:27:42,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-29 17:27:42,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-29 17:27:42,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-29 17:27:42,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-29 17:27:42,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-29 17:27:42,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-29 17:27:42,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-29 17:27:42,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-29 17:27:42,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:27:42,584 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:27:42,589 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:27:42,589 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:27:42,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:27:42 BasicIcfg [2023-08-29 17:27:42,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:27:42,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:27:42,620 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:27:42,620 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:27:42,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:27:35" (3/4) ... [2023-08-29 17:27:42,622 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:27:42,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:27:42,623 INFO L158 Benchmark]: Toolchain (without parser) took 8545.39ms. Allocated memory was 69.2MB in the beginning and 186.6MB in the end (delta: 117.4MB). Free memory was 36.0MB in the beginning and 69.5MB in the end (delta: -33.5MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2023-08-29 17:27:42,623 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 30.0MB in the beginning and 29.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:27:42,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.34ms. Allocated memory is still 69.2MB. Free memory was 35.8MB in the beginning and 30.1MB in the end (delta: 5.7MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2023-08-29 17:27:42,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.63ms. Allocated memory is still 69.2MB. Free memory was 30.1MB in the beginning and 27.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:27:42,624 INFO L158 Benchmark]: Boogie Preprocessor took 66.02ms. Allocated memory is still 69.2MB. Free memory was 27.5MB in the beginning and 43.7MB in the end (delta: -16.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-08-29 17:27:42,624 INFO L158 Benchmark]: RCFGBuilder took 435.33ms. Allocated memory is still 69.2MB. Free memory was 43.4MB in the beginning and 27.9MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-29 17:27:42,624 INFO L158 Benchmark]: TraceAbstraction took 7230.36ms. Allocated memory was 69.2MB in the beginning and 186.6MB in the end (delta: 117.4MB). Free memory was 27.2MB in the beginning and 69.5MB in the end (delta: -42.3MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. [2023-08-29 17:27:42,624 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 186.6MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:27:42,626 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 52.4MB. Free memory was 30.0MB in the beginning and 29.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.34ms. Allocated memory is still 69.2MB. Free memory was 35.8MB in the beginning and 30.1MB in the end (delta: 5.7MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.63ms. Allocated memory is still 69.2MB. Free memory was 30.1MB in the beginning and 27.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.02ms. Allocated memory is still 69.2MB. Free memory was 27.5MB in the beginning and 43.7MB in the end (delta: -16.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * RCFGBuilder took 435.33ms. Allocated memory is still 69.2MB. Free memory was 43.4MB in the beginning and 27.9MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7230.36ms. Allocated memory was 69.2MB in the beginning and 186.6MB in the end (delta: 117.4MB). Free memory was 27.2MB in the beginning and 69.5MB in the end (delta: -42.3MB). Peak memory consumption was 74.4MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 186.6MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 105 PlacesBefore, 48 PlacesAfterwards, 101 TransitionsBefore, 44 TransitionsAfterwards, 1860 CoEnabledTransitionPairs, 9 FixpointIterations, 52 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 15445 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3411, independent: 2701, independent conditional: 0, independent unconditional: 2701, dependent: 710, dependent conditional: 0, dependent unconditional: 710, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 821, independent: 757, independent conditional: 0, independent unconditional: 757, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3411, independent: 1944, independent conditional: 0, independent unconditional: 1944, dependent: 646, dependent conditional: 0, dependent unconditional: 646, unknown: 821, unknown conditional: 0, unknown unconditional: 821] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1243]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; [L1224] 0 int *y; [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_t id; [L1235] 0 int *z; [L1236] 0 x = malloc(sizeof(int)) [L1237] 0 y = malloc(sizeof(int)) [L1238] 0 z = y [L1239] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] EXPR 0 \read(*x) VAL [\read(*x)=26, arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] [L1241] 0 printf("%d\n",*x) [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1229] EXPR 1 *y [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1243] EXPR 0 \read(*z) VAL [\read(*z)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] [L1229] 1 *y = 8 VAL [*y = 8=27, arg={0:0}, arg={0:0}, m={1:0}, x={-1:0}, y={-2:0}] [L1243] 0 printf("%d\n",*z) VAL [*y = 8=27, \read(*z)=8, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-1:0}, y={-2:0}, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: *x = 3 [1228] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1236] * C: *x = 3 [1228] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: y = malloc(sizeof(int)) [1237] and C: printf("%d\n",*z) [1243] - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 135 locations, 15 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: 7.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 414 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1594 IncrementalHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 20 mSDtfsCounter, 1594 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=9, InterpolantAutomatonStates: 46, 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, 1.9s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 935 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 17:27:42,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE