./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.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 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:57:19,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:57:19,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:57:20,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:57:20,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:57:20,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:57:20,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:57:20,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:57:20,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:57:20,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:57:20,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:57:20,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:57:20,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:57:20,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:57:20,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:57:20,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:57:20,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:57:20,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:57:20,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:57:20,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:57:20,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:57:20,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:57:20,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:57:20,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:57:20,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:57:20,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:57:20,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:57:20,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:57:20,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:57:20,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:57:20,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:57:20,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:57:20,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:57:20,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:57:20,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:57:20,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:57:20,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:57:20,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:57:20,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:57:20,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:57:20,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:57:20,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:57:20,127 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:57:20,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:57:20,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:57:20,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:57:20,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:57:20,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:57:20,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:57:20,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:57:20,132 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:57:20,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:57:20,133 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:57:20,133 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:57:20,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:57:20,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:57:20,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:57:20,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:57:20,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:57:20,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:57:20,134 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:57:20,134 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:57:20,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:57:20,134 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:57:20,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:57:20,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:57:20,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:57:20,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:57:20,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:57:20,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:57:20,135 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:57:20,135 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:57:20,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:57:20,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:57:20,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:57:20,443 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:57:20,443 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:57:20,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i [2023-08-29 01:57:21,558 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:57:21,853 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:57:21,854 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i [2023-08-29 01:57:21,868 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9831db78/f75d235c547340119e84cf2ac6f0824a/FLAG20307c0d5 [2023-08-29 01:57:21,886 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9831db78/f75d235c547340119e84cf2ac6f0824a [2023-08-29 01:57:21,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:57:21,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:57:21,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:57:21,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:57:21,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:57:21,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:57:21" (1/1) ... [2023-08-29 01:57:21,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463d84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:21, skipping insertion in model container [2023-08-29 01:57:21,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:57:21" (1/1) ... [2023-08-29 01:57:21,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:57:21,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:57:22,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:57:22,478 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:57:22,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:57:22,642 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:57:22,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22 WrapperNode [2023-08-29 01:57:22,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:57:22,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:57:22,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:57:22,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:57:22,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,699 INFO L138 Inliner]: procedures = 365, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-08-29 01:57:22,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:57:22,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:57:22,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:57:22,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:57:22,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:57:22,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:57:22,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:57:22,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:57:22,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (1/1) ... [2023-08-29 01:57:22,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:57:22,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:57:22,797 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 01:57:22,799 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 01:57:22,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:57:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:57:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:57:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:57:22,840 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:57:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 01:57:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:57:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:57:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:57:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:57:22,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:57:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:57:22,843 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 01:57:22,973 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:57:22,975 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:57:23,201 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:57:23,208 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:57:23,208 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:57:23,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:23 BoogieIcfgContainer [2023-08-29 01:57:23,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:57:23,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:57:23,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:57:23,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:57:23,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:57:21" (1/3) ... [2023-08-29 01:57:23,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1400bb42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:57:23, skipping insertion in model container [2023-08-29 01:57:23,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:57:22" (2/3) ... [2023-08-29 01:57:23,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1400bb42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:57:23, skipping insertion in model container [2023-08-29 01:57:23,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:23" (3/3) ... [2023-08-29 01:57:23,217 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2023-08-29 01:57:23,224 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:57:23,232 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:57:23,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-29 01:57:23,233 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:57:23,283 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 01:57:23,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 191 flow [2023-08-29 01:57:23,379 INFO L130 PetriNetUnfolder]: 0/92 cut-off events. [2023-08-29 01:57:23,379 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:23,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 01:57:23,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 93 transitions, 191 flow [2023-08-29 01:57:23,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 92 transitions, 187 flow [2023-08-29 01:57:23,389 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:57:23,401 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 92 transitions, 187 flow [2023-08-29 01:57:23,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 92 transitions, 187 flow [2023-08-29 01:57:23,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 187 flow [2023-08-29 01:57:23,447 INFO L130 PetriNetUnfolder]: 0/92 cut-off events. [2023-08-29 01:57:23,447 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:23,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 01:57:23,450 INFO L119 LiptonReduction]: Number of co-enabled transitions 1860 [2023-08-29 01:57:25,412 INFO L134 LiptonReduction]: Checked pairs total: 12178 [2023-08-29 01:57:25,412 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-29 01:57:25,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:57:25,430 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;@6bc7148e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:57:25,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-29 01:57:25,432 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-29 01:57:25,432 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:25,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:25,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 01:57:25,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:25,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:25,437 INFO L85 PathProgramCache]: Analyzing trace with hash 301, now seen corresponding path program 1 times [2023-08-29 01:57:25,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:25,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938196350] [2023-08-29 01:57:25,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:25,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:25,551 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 01:57:25,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:25,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938196350] [2023-08-29 01:57:25,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938196350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:25,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:25,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 01:57:25,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625703337] [2023-08-29 01:57:25,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:25,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 01:57:25,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:25,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 01:57:25,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 01:57:25,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 147 [2023-08-29 01:57:25,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 01:57:25,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:25,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 147 [2023-08-29 01:57:25,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:25,673 INFO L130 PetriNetUnfolder]: 30/173 cut-off events. [2023-08-29 01:57:25,673 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:25,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 173 events. 30/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 700 event pairs, 30 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 242. Up to 74 conditions per place. [2023-08-29 01:57:25,679 INFO L137 encePairwiseOnDemand]: 145/147 looper letters, 13 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2023-08-29 01:57:25,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 115 flow [2023-08-29 01:57:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 01:57:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 01:57:25,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 199 transitions. [2023-08-29 01:57:25,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6768707482993197 [2023-08-29 01:57:25,694 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 199 transitions. [2023-08-29 01:57:25,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 199 transitions. [2023-08-29 01:57:25,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:25,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 199 transitions. [2023-08-29 01:57:25,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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 01:57:25,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 01:57:25,711 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 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 01:57:25,713 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 93 flow. Second operand 2 states and 199 transitions. [2023-08-29 01:57:25,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 115 flow [2023-08-29 01:57:25,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:57:25,718 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 88 flow [2023-08-29 01:57:25,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=88, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2023-08-29 01:57:25,724 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2023-08-29 01:57:25,724 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 88 flow [2023-08-29 01:57:25,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 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 01:57:25,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:25,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:57:25,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:57:25,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:25,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:25,726 INFO L85 PathProgramCache]: Analyzing trace with hash 285614288, now seen corresponding path program 1 times [2023-08-29 01:57:25,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:25,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115328197] [2023-08-29 01:57:25,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:25,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:25,893 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 01:57:25,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:25,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115328197] [2023-08-29 01:57:25,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115328197] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:25,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:25,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:57:25,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264765938] [2023-08-29 01:57:25,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:25,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:57:25,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:57:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:57:25,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-08-29 01:57:25,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 01:57:25,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:25,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-08-29 01:57:25,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:25,976 INFO L130 PetriNetUnfolder]: 60/260 cut-off events. [2023-08-29 01:57:25,977 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:25,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 260 events. 60/260 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1164 event pairs, 60 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 400. Up to 138 conditions per place. [2023-08-29 01:57:25,982 INFO L137 encePairwiseOnDemand]: 143/147 looper letters, 17 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2023-08-29 01:57:25,982 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 118 flow [2023-08-29 01:57:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:57:25,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:57:25,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-29 01:57:25,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5850340136054422 [2023-08-29 01:57:25,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-29 01:57:25,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-29 01:57:25,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:25,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-29 01:57:25,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 01:57:25,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 01:57:25,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 01:57:25,992 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 88 flow. Second operand 3 states and 258 transitions. [2023-08-29 01:57:25,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 118 flow [2023-08-29 01:57:25,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 40 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:57:25,994 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 84 flow [2023-08-29 01:57:25,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2023-08-29 01:57:25,995 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-29 01:57:25,995 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 84 flow [2023-08-29 01:57:25,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 01:57:25,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:25,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:25,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:57:25,996 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:25,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:25,998 INFO L85 PathProgramCache]: Analyzing trace with hash 4537460, now seen corresponding path program 1 times [2023-08-29 01:57:25,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:25,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365454253] [2023-08-29 01:57:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:25,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:26,314 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 01:57:26,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:26,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365454253] [2023-08-29 01:57:26,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365454253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:26,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:26,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:57:26,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285828953] [2023-08-29 01:57:26,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:26,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:57:26,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:57:26,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:57:26,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 147 [2023-08-29 01:57:26,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 84 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 01:57:26,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:26,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 147 [2023-08-29 01:57:26,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:26,624 INFO L130 PetriNetUnfolder]: 193/474 cut-off events. [2023-08-29 01:57:26,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:57:26,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 474 events. 193/474 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2311 event pairs, 74 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 894. Up to 286 conditions per place. [2023-08-29 01:57:26,626 INFO L137 encePairwiseOnDemand]: 132/147 looper letters, 56 selfloop transitions, 37 changer transitions 0/108 dead transitions. [2023-08-29 01:57:26,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 108 transitions, 406 flow [2023-08-29 01:57:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:57:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:57:26,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2023-08-29 01:57:26,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2023-08-29 01:57:26,629 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2023-08-29 01:57:26,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2023-08-29 01:57:26,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:26,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2023-08-29 01:57:26,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 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 01:57:26,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 01:57:26,633 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 01:57:26,633 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 84 flow. Second operand 6 states and 532 transitions. [2023-08-29 01:57:26,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 108 transitions, 406 flow [2023-08-29 01:57:26,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 108 transitions, 405 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:57:26,635 INFO L231 Difference]: Finished difference. Result has 54 places, 78 transitions, 316 flow [2023-08-29 01:57:26,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=54, PETRI_TRANSITIONS=78} [2023-08-29 01:57:26,636 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2023-08-29 01:57:26,636 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 78 transitions, 316 flow [2023-08-29 01:57:26,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 01:57:26,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:26,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:26,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:57:26,637 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:26,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:26,638 INFO L85 PathProgramCache]: Analyzing trace with hash 431746594, now seen corresponding path program 1 times [2023-08-29 01:57:26,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:26,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161103323] [2023-08-29 01:57:26,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:26,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:26,872 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 01:57:26,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:26,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161103323] [2023-08-29 01:57:26,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161103323] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:26,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:26,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:57:26,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053766549] [2023-08-29 01:57:26,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:26,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:57:26,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:57:26,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:57:27,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-08-29 01:57:27,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 78 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 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 01:57:27,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:27,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-08-29 01:57:27,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:27,171 INFO L130 PetriNetUnfolder]: 265/777 cut-off events. [2023-08-29 01:57:27,171 INFO L131 PetriNetUnfolder]: For 239/255 co-relation queries the response was YES. [2023-08-29 01:57:27,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1925 conditions, 777 events. 265/777 cut-off events. For 239/255 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4871 event pairs, 37 based on Foata normal form. 18/782 useless extension candidates. Maximal degree in co-relation 1917. Up to 242 conditions per place. [2023-08-29 01:57:27,176 INFO L137 encePairwiseOnDemand]: 136/147 looper letters, 75 selfloop transitions, 32 changer transitions 0/142 dead transitions. [2023-08-29 01:57:27,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 142 transitions, 746 flow [2023-08-29 01:57:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:57:27,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:57:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2023-08-29 01:57:27,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6303854875283447 [2023-08-29 01:57:27,178 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 556 transitions. [2023-08-29 01:57:27,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 556 transitions. [2023-08-29 01:57:27,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:27,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 556 transitions. [2023-08-29 01:57:27,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 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 01:57:27,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 01:57:27,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 01:57:27,182 INFO L175 Difference]: Start difference. First operand has 54 places, 78 transitions, 316 flow. Second operand 6 states and 556 transitions. [2023-08-29 01:57:27,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 142 transitions, 746 flow [2023-08-29 01:57:27,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 142 transitions, 746 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:57:27,188 INFO L231 Difference]: Finished difference. Result has 63 places, 104 transitions, 574 flow [2023-08-29 01:57:27,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=574, PETRI_PLACES=63, PETRI_TRANSITIONS=104} [2023-08-29 01:57:27,189 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 14 predicate places. [2023-08-29 01:57:27,189 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 104 transitions, 574 flow [2023-08-29 01:57:27,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 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 01:57:27,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:27,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:27,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:57:27,190 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:27,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:27,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1883342013, now seen corresponding path program 1 times [2023-08-29 01:57:27,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:27,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799992350] [2023-08-29 01:57:27,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:27,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:27,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:57:27,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:27,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799992350] [2023-08-29 01:57:27,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799992350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:27,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:27,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:57:27,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531956840] [2023-08-29 01:57:27,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:27,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:57:27,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:27,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:57:27,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:57:27,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 147 [2023-08-29 01:57:27,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 104 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 01:57:27,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:27,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 147 [2023-08-29 01:57:27,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:27,285 INFO L130 PetriNetUnfolder]: 45/203 cut-off events. [2023-08-29 01:57:27,285 INFO L131 PetriNetUnfolder]: For 102/103 co-relation queries the response was YES. [2023-08-29 01:57:27,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 203 events. 45/203 cut-off events. For 102/103 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 757 event pairs, 9 based on Foata normal form. 9/207 useless extension candidates. Maximal degree in co-relation 492. Up to 64 conditions per place. [2023-08-29 01:57:27,287 INFO L137 encePairwiseOnDemand]: 143/147 looper letters, 14 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2023-08-29 01:57:27,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 296 flow [2023-08-29 01:57:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:57:27,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:57:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2023-08-29 01:57:27,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2023-08-29 01:57:27,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2023-08-29 01:57:27,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2023-08-29 01:57:27,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:27,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2023-08-29 01:57:27,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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 01:57:27,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 01:57:27,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 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 01:57:27,291 INFO L175 Difference]: Start difference. First operand has 63 places, 104 transitions, 574 flow. Second operand 3 states and 279 transitions. [2023-08-29 01:57:27,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 296 flow [2023-08-29 01:57:27,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 256 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-08-29 01:57:27,294 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 224 flow [2023-08-29 01:57:27,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-08-29 01:57:27,295 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2023-08-29 01:57:27,295 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 224 flow [2023-08-29 01:57:27,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 01:57:27,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:27,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:27,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 01:57:27,296 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:27,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2058288517, now seen corresponding path program 1 times [2023-08-29 01:57:27,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:27,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453742502] [2023-08-29 01:57:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:27,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:27,565 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 01:57:27,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:27,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453742502] [2023-08-29 01:57:27,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453742502] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:27,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:27,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:57:27,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910355557] [2023-08-29 01:57:27,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:27,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:57:27,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:27,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:57:27,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:57:27,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 147 [2023-08-29 01:57:27,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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 01:57:27,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:27,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 147 [2023-08-29 01:57:27,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:27,833 INFO L130 PetriNetUnfolder]: 151/421 cut-off events. [2023-08-29 01:57:27,833 INFO L131 PetriNetUnfolder]: For 129/132 co-relation queries the response was YES. [2023-08-29 01:57:27,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 421 events. 151/421 cut-off events. For 129/132 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1885 event pairs, 22 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 1092. Up to 257 conditions per place. [2023-08-29 01:57:27,835 INFO L137 encePairwiseOnDemand]: 133/147 looper letters, 54 selfloop transitions, 44 changer transitions 8/120 dead transitions. [2023-08-29 01:57:27,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 645 flow [2023-08-29 01:57:27,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:57:27,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:57:27,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2023-08-29 01:57:27,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2023-08-29 01:57:27,838 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2023-08-29 01:57:27,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2023-08-29 01:57:27,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:27,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2023-08-29 01:57:27,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 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 01:57:27,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 01:57:27,841 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 01:57:27,841 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 224 flow. Second operand 6 states and 532 transitions. [2023-08-29 01:57:27,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 645 flow [2023-08-29 01:57:27,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 120 transitions, 633 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:57:27,845 INFO L231 Difference]: Finished difference. Result has 66 places, 99 transitions, 568 flow [2023-08-29 01:57:27,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=568, PETRI_PLACES=66, PETRI_TRANSITIONS=99} [2023-08-29 01:57:27,848 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 17 predicate places. [2023-08-29 01:57:27,848 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 99 transitions, 568 flow [2023-08-29 01:57:27,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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 01:57:27,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:27,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:27,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 01:57:27,849 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:27,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:27,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1299235815, now seen corresponding path program 1 times [2023-08-29 01:57:27,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:27,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916848931] [2023-08-29 01:57:27,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:27,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:28,034 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 01:57:28,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:28,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916848931] [2023-08-29 01:57:28,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916848931] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:28,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:28,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:57:28,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664064106] [2023-08-29 01:57:28,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:28,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:57:28,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:57:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:57:28,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 147 [2023-08-29 01:57:28,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 99 transitions, 568 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 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 01:57:28,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:28,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 147 [2023-08-29 01:57:28,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:28,270 INFO L130 PetriNetUnfolder]: 159/446 cut-off events. [2023-08-29 01:57:28,271 INFO L131 PetriNetUnfolder]: For 404/420 co-relation queries the response was YES. [2023-08-29 01:57:28,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 446 events. 159/446 cut-off events. For 404/420 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2056 event pairs, 28 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 1498. Up to 292 conditions per place. [2023-08-29 01:57:28,274 INFO L137 encePairwiseOnDemand]: 137/147 looper letters, 62 selfloop transitions, 25 changer transitions 11/130 dead transitions. [2023-08-29 01:57:28,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 130 transitions, 926 flow [2023-08-29 01:57:28,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:57:28,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:57:28,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2023-08-29 01:57:28,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5884353741496599 [2023-08-29 01:57:28,277 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2023-08-29 01:57:28,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2023-08-29 01:57:28,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:28,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2023-08-29 01:57:28,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 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 01:57:28,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 01:57:28,280 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 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 01:57:28,281 INFO L175 Difference]: Start difference. First operand has 66 places, 99 transitions, 568 flow. Second operand 6 states and 519 transitions. [2023-08-29 01:57:28,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 130 transitions, 926 flow [2023-08-29 01:57:28,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 130 transitions, 908 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 01:57:28,287 INFO L231 Difference]: Finished difference. Result has 75 places, 115 transitions, 733 flow [2023-08-29 01:57:28,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=733, PETRI_PLACES=75, PETRI_TRANSITIONS=115} [2023-08-29 01:57:28,288 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 26 predicate places. [2023-08-29 01:57:28,288 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 115 transitions, 733 flow [2023-08-29 01:57:28,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 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 01:57:28,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:28,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:28,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 01:57:28,289 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:28,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1407489266, now seen corresponding path program 1 times [2023-08-29 01:57:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638399999] [2023-08-29 01:57:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:28,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:28,685 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 01:57:28,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:28,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638399999] [2023-08-29 01:57:28,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638399999] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:28,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:28,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 01:57:28,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729584742] [2023-08-29 01:57:28,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:28,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 01:57:28,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:28,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 01:57:28,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-29 01:57:28,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 147 [2023-08-29 01:57:28,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 115 transitions, 733 flow. Second operand has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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 01:57:28,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:28,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 147 [2023-08-29 01:57:28,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:29,051 INFO L130 PetriNetUnfolder]: 144/391 cut-off events. [2023-08-29 01:57:29,051 INFO L131 PetriNetUnfolder]: For 505/523 co-relation queries the response was YES. [2023-08-29 01:57:29,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 391 events. 144/391 cut-off events. For 505/523 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1682 event pairs, 23 based on Foata normal form. 10/397 useless extension candidates. Maximal degree in co-relation 1490. Up to 180 conditions per place. [2023-08-29 01:57:29,054 INFO L137 encePairwiseOnDemand]: 140/147 looper letters, 82 selfloop transitions, 26 changer transitions 8/149 dead transitions. [2023-08-29 01:57:29,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 149 transitions, 1193 flow [2023-08-29 01:57:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 01:57:29,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 01:57:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 539 transitions. [2023-08-29 01:57:29,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2023-08-29 01:57:29,057 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 539 transitions. [2023-08-29 01:57:29,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 539 transitions. [2023-08-29 01:57:29,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:29,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 539 transitions. [2023-08-29 01:57:29,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 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 01:57:29,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 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 01:57:29,060 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 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 01:57:29,060 INFO L175 Difference]: Start difference. First operand has 75 places, 115 transitions, 733 flow. Second operand 7 states and 539 transitions. [2023-08-29 01:57:29,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 149 transitions, 1193 flow [2023-08-29 01:57:29,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 149 transitions, 1125 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-08-29 01:57:29,068 INFO L231 Difference]: Finished difference. Result has 78 places, 114 transitions, 713 flow [2023-08-29 01:57:29,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=713, PETRI_PLACES=78, PETRI_TRANSITIONS=114} [2023-08-29 01:57:29,069 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 29 predicate places. [2023-08-29 01:57:29,069 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 114 transitions, 713 flow [2023-08-29 01:57:29,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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 01:57:29,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:29,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:29,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 01:57:29,070 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:29,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:29,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1511329020, now seen corresponding path program 1 times [2023-08-29 01:57:29,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:29,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334222663] [2023-08-29 01:57:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:29,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:57:29,441 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 01:57:29,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:57:29,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334222663] [2023-08-29 01:57:29,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334222663] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:57:29,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:57:29,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 01:57:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049823504] [2023-08-29 01:57:29,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:57:29,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 01:57:29,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:57:29,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 01:57:29,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-29 01:57:29,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 147 [2023-08-29 01:57:29,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 114 transitions, 713 flow. Second operand has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 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 01:57:29,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:57:29,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 147 [2023-08-29 01:57:29,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:57:29,862 INFO L130 PetriNetUnfolder]: 188/498 cut-off events. [2023-08-29 01:57:29,863 INFO L131 PetriNetUnfolder]: For 685/696 co-relation queries the response was YES. [2023-08-29 01:57:29,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 498 events. 188/498 cut-off events. For 685/696 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2339 event pairs, 21 based on Foata normal form. 17/514 useless extension candidates. Maximal degree in co-relation 1979. Up to 149 conditions per place. [2023-08-29 01:57:29,867 INFO L137 encePairwiseOnDemand]: 135/147 looper letters, 113 selfloop transitions, 52 changer transitions 11/189 dead transitions. [2023-08-29 01:57:29,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 189 transitions, 1548 flow [2023-08-29 01:57:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 01:57:29,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 01:57:29,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 598 transitions. [2023-08-29 01:57:29,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5811467444120505 [2023-08-29 01:57:29,869 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 598 transitions. [2023-08-29 01:57:29,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 598 transitions. [2023-08-29 01:57:29,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:57:29,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 598 transitions. [2023-08-29 01:57:29,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.42857142857143) internal successors, (598), 7 states have internal predecessors, (598), 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 01:57:29,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 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 01:57:29,873 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 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 01:57:29,873 INFO L175 Difference]: Start difference. First operand has 78 places, 114 transitions, 713 flow. Second operand 7 states and 598 transitions. [2023-08-29 01:57:29,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 189 transitions, 1548 flow [2023-08-29 01:57:29,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 189 transitions, 1442 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 01:57:29,882 INFO L231 Difference]: Finished difference. Result has 82 places, 131 transitions, 975 flow [2023-08-29 01:57:29,882 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=975, PETRI_PLACES=82, PETRI_TRANSITIONS=131} [2023-08-29 01:57:29,882 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 33 predicate places. [2023-08-29 01:57:29,883 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 131 transitions, 975 flow [2023-08-29 01:57:29,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 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 01:57:29,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:57:29,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:29,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 01:57:29,884 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-29 01:57:29,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:57:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1054341797, now seen corresponding path program 1 times [2023-08-29 01:57:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:57:29,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854922489] [2023-08-29 01:57:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:57:29,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:57:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:57:29,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:57:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:57:29,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:57:29,933 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:57:29,934 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-29 01:57:29,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-08-29 01:57:29,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-29 01:57:29,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-08-29 01:57:29,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-29 01:57:29,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2023-08-29 01:57:29,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-29 01:57:29,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-29 01:57:29,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2023-08-29 01:57:29,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-08-29 01:57:29,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-08-29 01:57:29,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-29 01:57:29,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-08-29 01:57:29,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-29 01:57:29,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 01:57:29,937 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:57:29,942 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:57:29,943 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:57:29,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:57:29 BasicIcfg [2023-08-29 01:57:29,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:57:29,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:57:29,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:57:29,972 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:57:29,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:57:23" (3/4) ... [2023-08-29 01:57:29,975 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:57:29,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:57:29,975 INFO L158 Benchmark]: Toolchain (without parser) took 8085.86ms. Allocated memory was 77.6MB in the beginning and 176.2MB in the end (delta: 98.6MB). Free memory was 52.8MB in the beginning and 92.6MB in the end (delta: -39.8MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2023-08-29 01:57:29,976 INFO L158 Benchmark]: CDTParser took 1.44ms. Allocated memory is still 54.5MB. Free memory was 32.9MB in the beginning and 32.8MB in the end (delta: 48.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:29,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 751.61ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 34.7MB in the end (delta: 17.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-08-29 01:57:29,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.72ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 34.4MB in the beginning and 78.2MB in the end (delta: -43.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-29 01:57:29,976 INFO L158 Benchmark]: Boogie Preprocessor took 48.26ms. Allocated memory is still 100.7MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:57:29,977 INFO L158 Benchmark]: RCFGBuilder took 460.55ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 60.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 01:57:29,977 INFO L158 Benchmark]: TraceAbstraction took 6759.89ms. Allocated memory was 100.7MB in the beginning and 176.2MB in the end (delta: 75.5MB). Free memory was 59.9MB in the beginning and 92.6MB in the end (delta: -32.7MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2023-08-29 01:57:29,977 INFO L158 Benchmark]: Witness Printer took 2.83ms. Allocated memory is still 176.2MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:57:29,978 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44ms. Allocated memory is still 54.5MB. Free memory was 32.9MB in the beginning and 32.8MB in the end (delta: 48.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 751.61ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 34.7MB in the end (delta: 17.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.72ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 34.4MB in the beginning and 78.2MB in the end (delta: -43.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.26ms. Allocated memory is still 100.7MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.55ms. Allocated memory is still 100.7MB. Free memory was 76.1MB in the beginning and 60.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6759.89ms. Allocated memory was 100.7MB in the beginning and 176.2MB in the end (delta: 75.5MB). Free memory was 59.9MB in the beginning and 92.6MB in the end (delta: -32.7MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Witness Printer took 2.83ms. Allocated memory is still 176.2MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 96 PlacesBefore, 49 PlacesAfterwards, 92 TransitionsBefore, 45 TransitionsAfterwards, 1860 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 12178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3004, independent: 2482, independent conditional: 0, independent unconditional: 2482, dependent: 522, dependent conditional: 0, dependent unconditional: 522, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 831, independent: 752, independent conditional: 0, independent unconditional: 752, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3004, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 443, dependent conditional: 0, dependent unconditional: 443, unknown: 831, unknown conditional: 0, unknown unconditional: 831] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 163, Positive conditional cache size: 0, Positive unconditional cache size: 163, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1237] 0 pthread_t id; [L1238] 0 data *z; [L1239] 0 d = malloc(sizeof(data)) [L1240] 0 z = d [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, d->x=25, d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) [L1231] EXPR 1 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d->x = 3=27, d={-2:0}, m={1:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d->x = 3=27, d={-2:0}, id={9:0}, m={1:0}, z->y=26, z={-2:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] EXPR 1 d->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d->y = 8=28, d={-2:0}, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d->y = 8=28, d={-2:0}, id={9:0}, m={1:0}, z->y=26, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d = malloc(sizeof(data)) [1239] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->y = 8 [1232] * C: d->x = 3 [1231] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that 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: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: 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, 126 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 691 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 436 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 284 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1966 IncrementalHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 284 mSolverCounterUnsat, 17 mSDtfsCounter, 1966 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=975occurred in iteration=9, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-29 01:57:30,033 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