./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_01-idx_rc.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/05-lval_ls_01-idx_rc.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 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e --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 17:30:24,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:30:24,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:30:24,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:30:24,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:30:24,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:30:24,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:30:24,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:30:24,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:30:24,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:30:24,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:30:24,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:30:24,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:30:24,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:30:24,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:30:24,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:30:24,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:30:24,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:30:24,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:30:24,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:30:24,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:30:24,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:30:24,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:30:24,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:30:24,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:30:24,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:30:24,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:30:24,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:30:24,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:30:24,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:30:24,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:30:24,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:30:24,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:30:24,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:30:24,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:30:24,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:30:24,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:30:24,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:30:24,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:30:25,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:30:25,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:30:25,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:30:25,026 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:30:25,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:30:25,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:30:25,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:30:25,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:30:25,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:30:25,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:30:25,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:30:25,029 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:30:25,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:30:25,030 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:30:25,030 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:30:25,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:30:25,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:30:25,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:30:25,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:30:25,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:30:25,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:30:25,031 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:30:25,031 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:30:25,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:30:25,031 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:30:25,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:30:25,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:30:25,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:30:25,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:30:25,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:30:25,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:30:25,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:30:25,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:30:25,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:30:25,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:30:25,033 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:30:25,033 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:30:25,033 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:30:25,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:30:25,033 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:30:25,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:30:25,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:30:25,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:30:25,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:30:25,284 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:30:25,285 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:30:25,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_01-idx_rc.i [2023-08-29 17:30:26,147 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:30:26,331 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:30:26,331 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_01-idx_rc.i [2023-08-29 17:30:26,344 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20744fb90/0bbc32cdf0ba44dba9425dc3ea3a47e8/FLAGa5b02564c [2023-08-29 17:30:26,355 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20744fb90/0bbc32cdf0ba44dba9425dc3ea3a47e8 [2023-08-29 17:30:26,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:30:26,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:30:26,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:30:26,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:30:26,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:30:26,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d751b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26, skipping insertion in model container [2023-08-29 17:30:26,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:30:26,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:30:26,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:30:26,637 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:30:26,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:30:26,700 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:30:26,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26 WrapperNode [2023-08-29 17:30:26,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:30:26,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:30:26,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:30:26,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:30:26,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,744 INFO L138 Inliner]: procedures = 161, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-08-29 17:30:26,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:30:26,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:30:26,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:30:26,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:30:26,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,778 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:30:26,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:30:26,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:30:26,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:30:26,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (1/1) ... [2023-08-29 17:30:26,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:30:26,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:26,807 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 17:30:26,813 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 17:30:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:30:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:30:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:30:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:30:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:30:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:30:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:30:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:30:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:30:26,833 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 17:30:26,935 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:30:26,937 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:30:27,043 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:30:27,047 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:30:27,049 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 17:30:27,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:27 BoogieIcfgContainer [2023-08-29 17:30:27,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:30:27,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:30:27,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:30:27,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:30:27,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:30:26" (1/3) ... [2023-08-29 17:30:27,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d3d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:30:27, skipping insertion in model container [2023-08-29 17:30:27,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:26" (2/3) ... [2023-08-29 17:30:27,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d3d39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:30:27, skipping insertion in model container [2023-08-29 17:30:27,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:27" (3/3) ... [2023-08-29 17:30:27,056 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_01-idx_rc.i [2023-08-29 17:30:27,061 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:30:27,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:30:27,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 17:30:27,075 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:30:27,109 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:30:27,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 61 transitions, 127 flow [2023-08-29 17:30:27,177 INFO L130 PetriNetUnfolder]: 2/60 cut-off events. [2023-08-29 17:30:27,177 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:27,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 2/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-08-29 17:30:27,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 61 transitions, 127 flow [2023-08-29 17:30:27,184 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 123 flow [2023-08-29 17:30:27,186 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:30:27,203 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 123 flow [2023-08-29 17:30:27,208 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 123 flow [2023-08-29 17:30:27,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 123 flow [2023-08-29 17:30:27,223 INFO L130 PetriNetUnfolder]: 2/60 cut-off events. [2023-08-29 17:30:27,228 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:27,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 2/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-08-29 17:30:27,230 INFO L119 LiptonReduction]: Number of co-enabled transitions 714 [2023-08-29 17:30:27,921 INFO L134 LiptonReduction]: Checked pairs total: 2321 [2023-08-29 17:30:27,922 INFO L136 LiptonReduction]: Total number of compositions: 37 [2023-08-29 17:30:27,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:30:27,940 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;@38e114dd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:30:27,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-29 17:30:27,946 INFO L130 PetriNetUnfolder]: 1/8 cut-off events. [2023-08-29 17:30:27,946 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:27,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:27,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 17:30:27,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:27,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:27,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2090234403, now seen corresponding path program 1 times [2023-08-29 17:30:27,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:27,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280220092] [2023-08-29 17:30:27,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:27,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:28,081 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 17:30:28,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:28,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280220092] [2023-08-29 17:30:28,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280220092] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:28,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:28,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:30:28,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923291224] [2023-08-29 17:30:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:28,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:28,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:28,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:28,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:30:28,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 98 [2023-08-29 17:30:28,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 17:30:28,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:28,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 98 [2023-08-29 17:30:28,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:28,157 INFO L130 PetriNetUnfolder]: 21/75 cut-off events. [2023-08-29 17:30:28,157 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:28,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 75 events. 21/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 218 event pairs, 20 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 119. Up to 54 conditions per place. [2023-08-29 17:30:28,159 INFO L137 encePairwiseOnDemand]: 95/98 looper letters, 12 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2023-08-29 17:30:28,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 81 flow [2023-08-29 17:30:28,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:28,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:28,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2023-08-29 17:30:28,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6122448979591837 [2023-08-29 17:30:28,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 180 transitions. [2023-08-29 17:30:28,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 180 transitions. [2023-08-29 17:30:28,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:28,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 180 transitions. [2023-08-29 17:30:28,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 17:30:28,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 17:30:28,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 17:30:28,179 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 51 flow. Second operand 3 states and 180 transitions. [2023-08-29 17:30:28,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 81 flow [2023-08-29 17:30:28,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:28,182 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 62 flow [2023-08-29 17:30:28,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2023-08-29 17:30:28,185 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2023-08-29 17:30:28,185 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 62 flow [2023-08-29 17:30:28,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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 17:30:28,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:28,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:28,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:30:28,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:28,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:28,186 INFO L85 PathProgramCache]: Analyzing trace with hash 431631986, now seen corresponding path program 1 times [2023-08-29 17:30:28,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:28,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729951731] [2023-08-29 17:30:28,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:28,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:28,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:28,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729951731] [2023-08-29 17:30:28,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729951731] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:28,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602648409] [2023-08-29 17:30:28,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:28,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:28,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:28,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:28,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 17:30:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:28,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:28,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:28,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 17:30:28,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 17:30:28,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602648409] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:28,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 17:30:28,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-29 17:30:28,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967879750] [2023-08-29 17:30:28,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:28,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:28,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:28,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:28,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 17:30:28,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2023-08-29 17:30:28,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 17:30:28,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:28,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2023-08-29 17:30:28,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:28,398 INFO L130 PetriNetUnfolder]: 57/164 cut-off events. [2023-08-29 17:30:28,399 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:28,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 164 events. 57/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 667 event pairs, 23 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 301. Up to 80 conditions per place. [2023-08-29 17:30:28,401 INFO L137 encePairwiseOnDemand]: 90/98 looper letters, 27 selfloop transitions, 6 changer transitions 0/38 dead transitions. [2023-08-29 17:30:28,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 38 transitions, 154 flow [2023-08-29 17:30:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:28,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:28,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2023-08-29 17:30:28,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6360544217687075 [2023-08-29 17:30:28,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 187 transitions. [2023-08-29 17:30:28,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 187 transitions. [2023-08-29 17:30:28,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:28,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 187 transitions. [2023-08-29 17:30:28,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 17:30:28,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 17:30:28,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 17:30:28,412 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 62 flow. Second operand 3 states and 187 transitions. [2023-08-29 17:30:28,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 38 transitions, 154 flow [2023-08-29 17:30:28,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 38 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:28,414 INFO L231 Difference]: Finished difference. Result has 32 places, 31 transitions, 110 flow [2023-08-29 17:30:28,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=32, PETRI_TRANSITIONS=31} [2023-08-29 17:30:28,416 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2023-08-29 17:30:28,417 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 31 transitions, 110 flow [2023-08-29 17:30:28,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 17:30:28,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:28,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:28,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 17:30:28,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:28,625 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:28,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash 998058296, now seen corresponding path program 1 times [2023-08-29 17:30:28,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:28,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463092939] [2023-08-29 17:30:28,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:28,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:28,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:28,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:28,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463092939] [2023-08-29 17:30:28,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463092939] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:28,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782440862] [2023-08-29 17:30:28,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:28,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:28,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:28,710 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:28,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 17:30:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:28,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:28,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 17:30:28,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 17:30:28,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782440862] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:28,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 17:30:28,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-29 17:30:28,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337255137] [2023-08-29 17:30:28,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:28,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:28,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:28,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:28,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 17:30:28,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 98 [2023-08-29 17:30:28,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 17:30:28,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:28,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 98 [2023-08-29 17:30:28,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:28,830 INFO L130 PetriNetUnfolder]: 55/165 cut-off events. [2023-08-29 17:30:28,830 INFO L131 PetriNetUnfolder]: For 63/66 co-relation queries the response was YES. [2023-08-29 17:30:28,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 165 events. 55/165 cut-off events. For 63/66 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 669 event pairs, 19 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 372. Up to 93 conditions per place. [2023-08-29 17:30:28,832 INFO L137 encePairwiseOnDemand]: 92/98 looper letters, 21 selfloop transitions, 7 changer transitions 2/40 dead transitions. [2023-08-29 17:30:28,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 40 transitions, 198 flow [2023-08-29 17:30:28,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2023-08-29 17:30:28,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2023-08-29 17:30:28,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2023-08-29 17:30:28,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2023-08-29 17:30:28,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:28,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2023-08-29 17:30:28,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 17:30:28,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 17:30:28,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 17:30:28,836 INFO L175 Difference]: Start difference. First operand has 32 places, 31 transitions, 110 flow. Second operand 3 states and 175 transitions. [2023-08-29 17:30:28,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 40 transitions, 198 flow [2023-08-29 17:30:28,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 40 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:30:28,838 INFO L231 Difference]: Finished difference. Result has 34 places, 36 transitions, 154 flow [2023-08-29 17:30:28,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=34, PETRI_TRANSITIONS=36} [2023-08-29 17:30:28,839 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2023-08-29 17:30:28,839 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 36 transitions, 154 flow [2023-08-29 17:30:28,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 17:30:28,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:28,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:28,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 17:30:29,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-29 17:30:29,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:29,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1315177308, now seen corresponding path program 1 times [2023-08-29 17:30:29,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:29,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751755306] [2023-08-29 17:30:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:29,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:29,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:29,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751755306] [2023-08-29 17:30:29,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751755306] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:29,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762404901] [2023-08-29 17:30:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:29,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:29,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:29,094 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:29,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 17:30:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:29,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:29,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 17:30:29,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 17:30:29,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762404901] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:29,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 17:30:29,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-29 17:30:29,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373139221] [2023-08-29 17:30:29,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:29,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:29,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:29,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:29,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 17:30:29,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2023-08-29 17:30:29,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 17:30:29,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:29,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2023-08-29 17:30:29,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:29,214 INFO L130 PetriNetUnfolder]: 61/180 cut-off events. [2023-08-29 17:30:29,215 INFO L131 PetriNetUnfolder]: For 139/144 co-relation queries the response was YES. [2023-08-29 17:30:29,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 180 events. 61/180 cut-off events. For 139/144 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 744 event pairs, 18 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 486. Up to 107 conditions per place. [2023-08-29 17:30:29,216 INFO L137 encePairwiseOnDemand]: 92/98 looper letters, 19 selfloop transitions, 7 changer transitions 10/46 dead transitions. [2023-08-29 17:30:29,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 46 transitions, 272 flow [2023-08-29 17:30:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:29,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:29,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2023-08-29 17:30:29,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6020408163265306 [2023-08-29 17:30:29,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 177 transitions. [2023-08-29 17:30:29,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 177 transitions. [2023-08-29 17:30:29,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:29,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 177 transitions. [2023-08-29 17:30:29,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 17:30:29,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 17:30:29,219 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 17:30:29,219 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 154 flow. Second operand 3 states and 177 transitions. [2023-08-29 17:30:29,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 46 transitions, 272 flow [2023-08-29 17:30:29,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 46 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:30:29,221 INFO L231 Difference]: Finished difference. Result has 36 places, 35 transitions, 172 flow [2023-08-29 17:30:29,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=36, PETRI_TRANSITIONS=35} [2023-08-29 17:30:29,222 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2023-08-29 17:30:29,222 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 35 transitions, 172 flow [2023-08-29 17:30:29,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 17:30:29,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:29,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:29,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-29 17:30:29,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:29,429 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:29,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:29,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1886627979, now seen corresponding path program 1 times [2023-08-29 17:30:29,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:29,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376786438] [2023-08-29 17:30:29,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:29,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:29,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376786438] [2023-08-29 17:30:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376786438] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35236701] [2023-08-29 17:30:29,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:29,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:29,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:29,467 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:29,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-29 17:30:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:29,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:29,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:29,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:30:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:29,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35236701] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:30:29,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:30:29,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-29 17:30:29,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28764330] [2023-08-29 17:30:29,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:30:29,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:30:29,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:29,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:30:29,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:30:29,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2023-08-29 17:30:29,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 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 17:30:29,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:29,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2023-08-29 17:30:29,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:29,595 INFO L130 PetriNetUnfolder]: 31/144 cut-off events. [2023-08-29 17:30:29,596 INFO L131 PetriNetUnfolder]: For 167/175 co-relation queries the response was YES. [2023-08-29 17:30:29,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 144 events. 31/144 cut-off events. For 167/175 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 640 event pairs, 15 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 395. Up to 82 conditions per place. [2023-08-29 17:30:29,599 INFO L137 encePairwiseOnDemand]: 95/98 looper letters, 16 selfloop transitions, 5 changer transitions 0/38 dead transitions. [2023-08-29 17:30:29,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 38 transitions, 226 flow [2023-08-29 17:30:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:30:29,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:30:29,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 344 transitions. [2023-08-29 17:30:29,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5850340136054422 [2023-08-29 17:30:29,600 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 344 transitions. [2023-08-29 17:30:29,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 344 transitions. [2023-08-29 17:30:29,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:29,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 344 transitions. [2023-08-29 17:30:29,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 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 17:30:29,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 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 17:30:29,602 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 98.0) internal successors, (686), 7 states have internal predecessors, (686), 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 17:30:29,603 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 172 flow. Second operand 6 states and 344 transitions. [2023-08-29 17:30:29,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 38 transitions, 226 flow [2023-08-29 17:30:29,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 38 transitions, 212 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:30:29,607 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 194 flow [2023-08-29 17:30:29,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=194, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2023-08-29 17:30:29,609 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2023-08-29 17:30:29,609 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 194 flow [2023-08-29 17:30:29,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 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 17:30:29,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:29,610 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:29,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-29 17:30:29,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:29,814 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:29,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1718890218, now seen corresponding path program 2 times [2023-08-29 17:30:29,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:29,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822654988] [2023-08-29 17:30:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:29,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822654988] [2023-08-29 17:30:29,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822654988] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:29,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409958146] [2023-08-29 17:30:29,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 17:30:29,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:29,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:29,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:30:29,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-29 17:30:29,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-29 17:30:29,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 17:30:29,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 17:30:29,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:29,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:30:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:30:29,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409958146] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:30:29,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:30:29,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-29 17:30:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818212802] [2023-08-29 17:30:29,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:30:29,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:30:29,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:29,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:30:29,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:30:30,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2023-08-29 17:30:30,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 194 flow. Second operand has 12 states, 12 states have (on average 55.416666666666664) internal successors, (665), 12 states have internal predecessors, (665), 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 17:30:30,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:30,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2023-08-29 17:30:30,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:30,059 INFO L130 PetriNetUnfolder]: 31/150 cut-off events. [2023-08-29 17:30:30,059 INFO L131 PetriNetUnfolder]: For 142/150 co-relation queries the response was YES. [2023-08-29 17:30:30,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 150 events. 31/150 cut-off events. For 142/150 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 637 event pairs, 15 based on Foata normal form. 6/148 useless extension candidates. Maximal degree in co-relation 376. Up to 82 conditions per place. [2023-08-29 17:30:30,060 INFO L137 encePairwiseOnDemand]: 95/98 looper letters, 16 selfloop transitions, 11 changer transitions 0/44 dead transitions. [2023-08-29 17:30:30,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 44 transitions, 284 flow [2023-08-29 17:30:30,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:30:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:30:30,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 677 transitions. [2023-08-29 17:30:30,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5756802721088435 [2023-08-29 17:30:30,062 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 677 transitions. [2023-08-29 17:30:30,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 677 transitions. [2023-08-29 17:30:30,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:30,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 677 transitions. [2023-08-29 17:30:30,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.416666666666664) internal successors, (677), 12 states have internal predecessors, (677), 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 17:30:30,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 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 17:30:30,065 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 98.0) internal successors, (1274), 13 states have internal predecessors, (1274), 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 17:30:30,065 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 194 flow. Second operand 12 states and 677 transitions. [2023-08-29 17:30:30,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 44 transitions, 284 flow [2023-08-29 17:30:30,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 44 transitions, 270 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 17:30:30,067 INFO L231 Difference]: Finished difference. Result has 58 places, 44 transitions, 264 flow [2023-08-29 17:30:30,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=264, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2023-08-29 17:30:30,069 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 31 predicate places. [2023-08-29 17:30:30,070 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 264 flow [2023-08-29 17:30:30,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 55.416666666666664) internal successors, (665), 12 states have internal predecessors, (665), 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 17:30:30,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:30,070 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:30,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-29 17:30:30,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:30,274 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 17:30:30,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:30,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1090116874, now seen corresponding path program 3 times [2023-08-29 17:30:30,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:30,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067603590] [2023-08-29 17:30:30,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:30,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:30:30,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:30:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:30:30,341 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:30:30,344 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:30:30,345 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-29 17:30:30,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-29 17:30:30,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-29 17:30:30,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-29 17:30:30,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-29 17:30:30,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-29 17:30:30,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-29 17:30:30,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:30:30,349 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-08-29 17:30:30,353 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:30:30,353 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:30:30,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:30:30 BasicIcfg [2023-08-29 17:30:30,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:30:30,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:30:30,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:30:30,388 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:30:30,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:27" (3/4) ... [2023-08-29 17:30:30,390 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:30:30,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:30:30,390 INFO L158 Benchmark]: Toolchain (without parser) took 4032.80ms. Allocated memory was 65.0MB in the beginning and 104.9MB in the end (delta: 39.8MB). Free memory was 41.6MB in the beginning and 33.8MB in the end (delta: 7.7MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2023-08-29 17:30:30,391 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:30,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.29ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 41.4MB in the beginning and 58.5MB in the end (delta: -17.1MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-08-29 17:30:30,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.87ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 56.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:30:30,391 INFO L158 Benchmark]: Boogie Preprocessor took 38.44ms. Allocated memory is still 86.0MB. Free memory was 56.4MB in the beginning and 55.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:30:30,391 INFO L158 Benchmark]: RCFGBuilder took 266.75ms. Allocated memory is still 86.0MB. Free memory was 55.0MB in the beginning and 43.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-29 17:30:30,393 INFO L158 Benchmark]: TraceAbstraction took 3335.58ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 42.4MB in the beginning and 33.8MB in the end (delta: 8.6MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2023-08-29 17:30:30,393 INFO L158 Benchmark]: Witness Printer took 2.33ms. Allocated memory is still 104.9MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:30,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 42.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.29ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 41.4MB in the beginning and 58.5MB in the end (delta: -17.1MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.87ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 56.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.44ms. Allocated memory is still 86.0MB. Free memory was 56.4MB in the beginning and 55.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.75ms. Allocated memory is still 86.0MB. Free memory was 55.0MB in the beginning and 43.1MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3335.58ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 42.4MB in the beginning and 33.8MB in the end (delta: 8.6MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Witness Printer took 2.33ms. Allocated memory is still 104.9MB. Free memory is still 33.8MB. 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: 0.7s, 62 PlacesBefore, 27 PlacesAfterwards, 60 TransitionsBefore, 24 TransitionsAfterwards, 714 CoEnabledTransitionPairs, 4 FixpointIterations, 16 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 2321 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1009, independent: 843, independent conditional: 0, independent unconditional: 843, dependent: 166, dependent conditional: 0, dependent unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 383, independent: 350, independent conditional: 0, independent unconditional: 350, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1009, independent: 493, independent conditional: 0, independent unconditional: 493, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 383, unknown conditional: 0, unknown unconditional: 383] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 683]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data; [L680] 0 pthread_mutex_t m[10]; [L688] 0 int i = 0; VAL [data=0, i=0, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=1, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=2, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=3, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=4, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=5, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=6, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=7, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=8, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=9, m={1:0}] [L688] COND TRUE 0 i < 10 [L688] 0 i++ VAL [data=0, i=10, m={1:0}] [L688] COND FALSE 0 !(i < 10) [L690] 0 pthread_t id; [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data=0, i=10, id={2:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L693] 0 data++ VAL [arg={0:0}, arg={0:0}, data=0, i=10, id={2:0}, m={1:0}, pthread_mutex_lock(&m[4])=0] [L683] 1 data++ VAL [arg={0:0}, arg={0:0}, data=0, m={1:0}] [L693] 0 data++ VAL [arg={0:0}, arg={0:0}, data++=0, data++=241, data=1, i=10, id={2:0}, m={1:0}] [L683] 1 data++ VAL [arg={0:0}, arg={0:0}, data=1, m={1:0}] Now there is a data race on ~data~0 between C: data++ [693] and C: data++ [683] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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: 683]: 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, 79 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 370 IncrementalHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 36 mSDtfsCounter, 370 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred in iteration=6, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 427 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 3/39 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 17:30:30,448 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