./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_14-idxunknown_access.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_14-idxunknown_access.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 ab624cd95d0fa2367e02c67b22b0f1efd275cc176f54b50b7fb2d138f7f4319c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:59:00,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:59:00,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:59:00,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:59:00,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:59:00,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:59:00,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:59:00,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:59:00,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:59:00,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:59:00,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:59:00,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:59:00,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:59:00,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:59:00,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:59:00,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:59:00,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:59:00,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:59:00,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:59:00,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:59:00,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:59:00,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:59:00,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:59:00,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:59:00,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:59:00,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:59:00,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:59:00,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:59:00,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:59:00,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:59:00,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:59:00,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:59:00,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:59:00,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:59:00,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:59:00,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:59:00,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:59:00,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:59:00,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:59:00,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:59:00,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:59:00,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:59:00,877 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:59:00,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:59:00,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:59:00,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:59:00,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:59:00,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:59:00,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:59:00,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:59:00,881 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:59:00,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:59:00,882 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:59:00,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:59:00,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:59:00,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:59:00,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:59:00,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:59:00,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:59:00,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:59:00,883 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:59:00,884 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:59:00,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:59:00,888 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:59:00,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:59:00,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:59:00,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:59:00,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:59:00,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:59:00,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:59:00,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:59:00,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:59:00,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:59:00,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:59:00,892 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:59:00,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:59:00,892 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:59:00,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:59:00,892 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:59:00,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab624cd95d0fa2367e02c67b22b0f1efd275cc176f54b50b7fb2d138f7f4319c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:59:01,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:59:01,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:59:01,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:59:01,191 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:59:01,191 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:59:01,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_14-idxunknown_access.i [2023-08-31 19:59:02,421 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:59:02,616 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:59:02,618 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_14-idxunknown_access.i [2023-08-31 19:59:02,629 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeaa29f24/f8386db732cc449db2f290ce6e3022b8/FLAGbf9a2650d [2023-08-31 19:59:02,642 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eeaa29f24/f8386db732cc449db2f290ce6e3022b8 [2023-08-31 19:59:02,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:59:02,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:59:02,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:59:02,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:59:02,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:59:02,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131e3be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:02, skipping insertion in model container [2023-08-31 19:59:02,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:59:02" (1/1) ... [2023-08-31 19:59:02,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:59:02,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:59:03,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:59:03,017 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:59:03,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:59:03,100 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:59:03,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03 WrapperNode [2023-08-31 19:59:03,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:59:03,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:59:03,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:59:03,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:59:03,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,160 INFO L138 Inliner]: procedures = 163, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2023-08-31 19:59:03,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:59:03,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:59:03,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:59:03,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:59:03,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,200 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:59:03,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:59:03,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:59:03,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:59:03,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (1/1) ... [2023-08-31 19:59:03,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:59:03,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:03,242 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) [2023-08-31 19:59:03,263 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 [2023-08-31 19:59:03,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:59:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:59:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:59:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:59:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:59:03,289 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:59:03,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:59:03,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:59:03,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:59:03,292 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:59:03,386 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:59:03,388 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:59:03,585 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:59:03,590 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:59:03,591 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:59:03,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:59:03 BoogieIcfgContainer [2023-08-31 19:59:03,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:59:03,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:59:03,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:59:03,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:59:03,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:59:02" (1/3) ... [2023-08-31 19:59:03,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310fe7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:59:03, skipping insertion in model container [2023-08-31 19:59:03,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:03" (2/3) ... [2023-08-31 19:59:03,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310fe7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:59:03, skipping insertion in model container [2023-08-31 19:59:03,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:59:03" (3/3) ... [2023-08-31 19:59:03,600 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_14-idxunknown_access.i [2023-08-31 19:59:03,606 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:59:03,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:59:03,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 19:59:03,614 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:59:03,705 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:59:03,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 151 flow [2023-08-31 19:59:03,770 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2023-08-31 19:59:03,771 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:03,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 1/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-31 19:59:03,774 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 73 transitions, 151 flow [2023-08-31 19:59:03,777 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 72 transitions, 147 flow [2023-08-31 19:59:03,780 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:59:03,798 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 72 transitions, 147 flow [2023-08-31 19:59:03,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 72 transitions, 147 flow [2023-08-31 19:59:03,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 147 flow [2023-08-31 19:59:03,820 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2023-08-31 19:59:03,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:03,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 1/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-31 19:59:03,821 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-31 19:59:05,231 INFO L134 LiptonReduction]: Checked pairs total: 6267 [2023-08-31 19:59:05,231 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-08-31 19:59:05,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:59:05,248 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;@37df0b64, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:59:05,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 19:59:05,256 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-08-31 19:59:05,256 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:05,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:05,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:05,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:05,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:05,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1052849590, now seen corresponding path program 1 times [2023-08-31 19:59:05,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:05,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279118107] [2023-08-31 19:59:05,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:05,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:05,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:05,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:05,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279118107] [2023-08-31 19:59:05,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279118107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:05,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:05,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:05,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484339287] [2023-08-31 19:59:05,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:05,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:05,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:05,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:05,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:06,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 121 [2023-08-31 19:59:06,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 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) [2023-08-31 19:59:06,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:06,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 121 [2023-08-31 19:59:06,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:06,281 INFO L130 PetriNetUnfolder]: 156/392 cut-off events. [2023-08-31 19:59:06,281 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:06,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 392 events. 156/392 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1911 event pairs, 47 based on Foata normal form. 0/377 useless extension candidates. Maximal degree in co-relation 744. Up to 186 conditions per place. [2023-08-31 19:59:06,287 INFO L137 encePairwiseOnDemand]: 110/121 looper letters, 54 selfloop transitions, 22 changer transitions 0/83 dead transitions. [2023-08-31 19:59:06,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 83 transitions, 321 flow [2023-08-31 19:59:06,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:06,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2023-08-31 19:59:06,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5606060606060606 [2023-08-31 19:59:06,300 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 407 transitions. [2023-08-31 19:59:06,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 407 transitions. [2023-08-31 19:59:06,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:06,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 407 transitions. [2023-08-31 19:59:06,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 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) [2023-08-31 19:59:06,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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) [2023-08-31 19:59:06,311 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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) [2023-08-31 19:59:06,312 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 63 flow. Second operand 6 states and 407 transitions. [2023-08-31 19:59:06,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 83 transitions, 321 flow [2023-08-31 19:59:06,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 83 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:59:06,316 INFO L231 Difference]: Finished difference. Result has 42 places, 52 transitions, 208 flow [2023-08-31 19:59:06,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=42, PETRI_TRANSITIONS=52} [2023-08-31 19:59:06,320 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-31 19:59:06,321 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 52 transitions, 208 flow [2023-08-31 19:59:06,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 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) [2023-08-31 19:59:06,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:06,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:06,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:59:06,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:06,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:06,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1454311193, now seen corresponding path program 1 times [2023-08-31 19:59:06,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:06,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956438325] [2023-08-31 19:59:06,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:06,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:06,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:06,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956438325] [2023-08-31 19:59:06,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956438325] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:06,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:06,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:06,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034859246] [2023-08-31 19:59:06,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:06,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:06,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:06,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:06,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:06,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 121 [2023-08-31 19:59:06,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 52 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 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) [2023-08-31 19:59:06,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:06,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 121 [2023-08-31 19:59:06,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:06,830 INFO L130 PetriNetUnfolder]: 192/528 cut-off events. [2023-08-31 19:59:06,830 INFO L131 PetriNetUnfolder]: For 108/109 co-relation queries the response was YES. [2023-08-31 19:59:06,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 528 events. 192/528 cut-off events. For 108/109 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3102 event pairs, 67 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 1211. Up to 271 conditions per place. [2023-08-31 19:59:06,834 INFO L137 encePairwiseOnDemand]: 110/121 looper letters, 60 selfloop transitions, 26 changer transitions 0/101 dead transitions. [2023-08-31 19:59:06,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 101 transitions, 498 flow [2023-08-31 19:59:06,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:06,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 390 transitions. [2023-08-31 19:59:06,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371900826446281 [2023-08-31 19:59:06,841 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 390 transitions. [2023-08-31 19:59:06,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 390 transitions. [2023-08-31 19:59:06,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:06,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 390 transitions. [2023-08-31 19:59:06,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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) [2023-08-31 19:59:06,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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) [2023-08-31 19:59:06,846 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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) [2023-08-31 19:59:06,847 INFO L175 Difference]: Start difference. First operand has 42 places, 52 transitions, 208 flow. Second operand 6 states and 390 transitions. [2023-08-31 19:59:06,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 101 transitions, 498 flow [2023-08-31 19:59:06,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 101 transitions, 498 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:06,855 INFO L231 Difference]: Finished difference. Result has 51 places, 74 transitions, 386 flow [2023-08-31 19:59:06,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=51, PETRI_TRANSITIONS=74} [2023-08-31 19:59:06,856 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 17 predicate places. [2023-08-31 19:59:06,856 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 74 transitions, 386 flow [2023-08-31 19:59:06,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 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) [2023-08-31 19:59:06,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:06,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:06,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:59:06,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:06,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:06,860 INFO L85 PathProgramCache]: Analyzing trace with hash 796039600, now seen corresponding path program 1 times [2023-08-31 19:59:06,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:06,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663507637] [2023-08-31 19:59:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:06,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:07,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:07,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663507637] [2023-08-31 19:59:07,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663507637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:07,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:07,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:07,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067707883] [2023-08-31 19:59:07,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:07,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:07,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:07,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:07,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:07,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 121 [2023-08-31 19:59:07,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 74 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 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) [2023-08-31 19:59:07,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:07,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 121 [2023-08-31 19:59:07,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:07,455 INFO L130 PetriNetUnfolder]: 365/869 cut-off events. [2023-08-31 19:59:07,456 INFO L131 PetriNetUnfolder]: For 558/560 co-relation queries the response was YES. [2023-08-31 19:59:07,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2567 conditions, 869 events. 365/869 cut-off events. For 558/560 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4970 event pairs, 125 based on Foata normal form. 1/822 useless extension candidates. Maximal degree in co-relation 2549. Up to 556 conditions per place. [2023-08-31 19:59:07,463 INFO L137 encePairwiseOnDemand]: 107/121 looper letters, 89 selfloop transitions, 52 changer transitions 1/150 dead transitions. [2023-08-31 19:59:07,464 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 150 transitions, 985 flow [2023-08-31 19:59:07,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:07,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 366 transitions. [2023-08-31 19:59:07,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041322314049587 [2023-08-31 19:59:07,466 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 366 transitions. [2023-08-31 19:59:07,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 366 transitions. [2023-08-31 19:59:07,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:07,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 366 transitions. [2023-08-31 19:59:07,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.0) internal successors, (366), 6 states have internal predecessors, (366), 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) [2023-08-31 19:59:07,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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) [2023-08-31 19:59:07,469 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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) [2023-08-31 19:59:07,469 INFO L175 Difference]: Start difference. First operand has 51 places, 74 transitions, 386 flow. Second operand 6 states and 366 transitions. [2023-08-31 19:59:07,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 150 transitions, 985 flow [2023-08-31 19:59:07,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 150 transitions, 985 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:07,478 INFO L231 Difference]: Finished difference. Result has 60 places, 119 transitions, 817 flow [2023-08-31 19:59:07,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=817, PETRI_PLACES=60, PETRI_TRANSITIONS=119} [2023-08-31 19:59:07,479 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 26 predicate places. [2023-08-31 19:59:07,479 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 119 transitions, 817 flow [2023-08-31 19:59:07,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 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) [2023-08-31 19:59:07,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:07,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:07,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:59:07,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:07,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:07,481 INFO L85 PathProgramCache]: Analyzing trace with hash 555543909, now seen corresponding path program 1 times [2023-08-31 19:59:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:07,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146564547] [2023-08-31 19:59:07,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:07,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:07,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:07,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146564547] [2023-08-31 19:59:07,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146564547] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:07,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:07,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:07,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224135144] [2023-08-31 19:59:07,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:07,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:07,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:07,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:07,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 121 [2023-08-31 19:59:07,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 119 transitions, 817 flow. Second operand has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 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) [2023-08-31 19:59:07,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:07,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 121 [2023-08-31 19:59:07,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:08,045 INFO L130 PetriNetUnfolder]: 478/1084 cut-off events. [2023-08-31 19:59:08,046 INFO L131 PetriNetUnfolder]: For 1720/1739 co-relation queries the response was YES. [2023-08-31 19:59:08,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3978 conditions, 1084 events. 478/1084 cut-off events. For 1720/1739 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6339 event pairs, 139 based on Foata normal form. 4/1032 useless extension candidates. Maximal degree in co-relation 3955. Up to 745 conditions per place. [2023-08-31 19:59:08,054 INFO L137 encePairwiseOnDemand]: 107/121 looper letters, 124 selfloop transitions, 68 changer transitions 4/199 dead transitions. [2023-08-31 19:59:08,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 199 transitions, 1669 flow [2023-08-31 19:59:08,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:08,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 383 transitions. [2023-08-31 19:59:08,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5275482093663911 [2023-08-31 19:59:08,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 383 transitions. [2023-08-31 19:59:08,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 383 transitions. [2023-08-31 19:59:08,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:08,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 383 transitions. [2023-08-31 19:59:08,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.833333333333336) internal successors, (383), 6 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:08,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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) [2023-08-31 19:59:08,062 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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) [2023-08-31 19:59:08,062 INFO L175 Difference]: Start difference. First operand has 60 places, 119 transitions, 817 flow. Second operand 6 states and 383 transitions. [2023-08-31 19:59:08,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 199 transitions, 1669 flow [2023-08-31 19:59:08,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 199 transitions, 1643 flow, removed 13 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:08,074 INFO L231 Difference]: Finished difference. Result has 69 places, 162 transitions, 1352 flow [2023-08-31 19:59:08,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1352, PETRI_PLACES=69, PETRI_TRANSITIONS=162} [2023-08-31 19:59:08,075 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 35 predicate places. [2023-08-31 19:59:08,076 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 162 transitions, 1352 flow [2023-08-31 19:59:08,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.333333333333336) internal successors, (308), 6 states have internal predecessors, (308), 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) [2023-08-31 19:59:08,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:08,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:08,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:59:08,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:08,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:08,077 INFO L85 PathProgramCache]: Analyzing trace with hash 686989223, now seen corresponding path program 1 times [2023-08-31 19:59:08,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:08,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134431236] [2023-08-31 19:59:08,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:08,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:59:08,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:59:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:59:08,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:59:08,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:59:08,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-31 19:59:08,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-31 19:59:08,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-31 19:59:08,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-31 19:59:08,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-31 19:59:08,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-31 19:59:08,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-31 19:59:08,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:59:08,145 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-31 19:59:08,150 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:59:08,150 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:59:08,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:59:08 BasicIcfg [2023-08-31 19:59:08,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:59:08,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:59:08,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:59:08,192 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:59:08,192 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:59:03" (3/4) ... [2023-08-31 19:59:08,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:59:08,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:59:08,196 INFO L158 Benchmark]: Toolchain (without parser) took 5549.87ms. Allocated memory was 71.3MB in the beginning and 125.8MB in the end (delta: 54.5MB). Free memory was 39.6MB in the beginning and 78.3MB in the end (delta: -38.7MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-08-31 19:59:08,196 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 52.4MB. Free memory was 30.8MB in the beginning and 30.8MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:59:08,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.50ms. Allocated memory is still 71.3MB. Free memory was 39.4MB in the beginning and 38.5MB in the end (delta: 905.0kB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2023-08-31 19:59:08,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.05ms. Allocated memory is still 71.3MB. Free memory was 38.5MB in the beginning and 36.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:59:08,200 INFO L158 Benchmark]: Boogie Preprocessor took 49.64ms. Allocated memory is still 71.3MB. Free memory was 36.4MB in the beginning and 34.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:59:08,201 INFO L158 Benchmark]: RCFGBuilder took 382.36ms. Allocated memory is still 71.3MB. Free memory was 34.8MB in the beginning and 38.4MB in the end (delta: -3.6MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-08-31 19:59:08,201 INFO L158 Benchmark]: TraceAbstraction took 4596.70ms. Allocated memory was 71.3MB in the beginning and 125.8MB in the end (delta: 54.5MB). Free memory was 37.6MB in the beginning and 79.4MB in the end (delta: -41.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-08-31 19:59:08,201 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 125.8MB. Free memory was 79.4MB in the beginning and 78.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:59:08,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 52.4MB. Free memory was 30.8MB in the beginning and 30.8MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.50ms. Allocated memory is still 71.3MB. Free memory was 39.4MB in the beginning and 38.5MB in the end (delta: 905.0kB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.05ms. Allocated memory is still 71.3MB. Free memory was 38.5MB in the beginning and 36.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.64ms. Allocated memory is still 71.3MB. Free memory was 36.4MB in the beginning and 34.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.36ms. Allocated memory is still 71.3MB. Free memory was 34.8MB in the beginning and 38.4MB in the end (delta: -3.6MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4596.70ms. Allocated memory was 71.3MB in the beginning and 125.8MB in the end (delta: 54.5MB). Free memory was 37.6MB in the beginning and 79.4MB in the end (delta: -41.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 125.8MB. Free memory was 79.4MB in the beginning and 78.3MB in the end (delta: 1.0MB). 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: 1.4s, 75 PlacesBefore, 34 PlacesAfterwards, 72 TransitionsBefore, 30 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 48 TotalNumberOfCompositions, 6267 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1459, independent: 1097, independent conditional: 0, independent unconditional: 1097, dependent: 362, dependent conditional: 0, dependent unconditional: 362, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 524, independent: 451, independent conditional: 0, independent unconditional: 451, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1459, independent: 646, independent conditional: 0, independent unconditional: 646, dependent: 289, dependent conditional: 0, dependent unconditional: 289, unknown: 524, unknown conditional: 0, unknown unconditional: 524] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 52, Positive conditional cache size: 0, Positive unconditional cache size: 52, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 686]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; [L690] 0 int i = __VERIFIER_nondet_int(); [L691] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L691] RET 0 assume_abort_if_not(0 <= i && i < 10) [L692] 0 pthread_t id; [L693] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=4, id={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L694] EXPR 0 data[i] VAL [arg={0:0}, data={1:0}, data[i]=0, i=4, id={2:0}] [L686] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]++=0, data[i]++=41, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] Now there is a data race (on the heap) between C: data[i]++ [694] and C: data[4]++ [686] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that 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: 686]: 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, 97 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 414 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 256 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 111 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1052 IncrementalHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 111 mSolverCounterUnsat, 35 mSDtfsCounter, 1052 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1352occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 1.1s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 19:59:08,246 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