./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.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/06-symbeq_23-idxsense_nr.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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --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 02:09:13,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:09:13,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:09:13,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:09:13,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:09:13,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:09:13,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:09:13,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:09:13,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:09:13,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:09:13,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:09:13,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:09:13,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:09:13,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:09:13,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:09:13,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:09:13,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:09:13,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:09:13,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:09:13,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:09:13,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:09:13,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:09:13,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:09:13,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:09:13,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:09:13,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:09:13,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:09:13,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:09:13,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:09:13,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:09:13,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:09:13,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:09:13,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:09:13,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:09:13,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:09:13,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:09:13,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:09:13,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:09:13,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:09:13,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:09:13,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:09:13,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:09:13,869 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:09:13,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:09:13,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:09:13,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:09:13,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:09:13,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:09:13,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:09:13,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:09:13,872 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:09:13,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:09:13,873 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:09:13,873 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:09:13,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:09:13,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:09:13,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:09:13,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:09:13,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:09:13,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:09:13,874 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:09:13,874 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:09:13,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:09:13,874 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:09:13,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:09:13,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:09:13,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:09:13,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:09:13,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:09:13,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:09:13,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:09:13,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:09:13,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:09:13,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:09:13,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:09:13,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:09:13,876 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:09:13,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:09:13,876 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:09:13,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:09:14,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:09:14,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:09:14,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:09:14,145 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:09:14,146 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:09:14,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-29 02:09:15,087 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:09:15,287 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:09:15,287 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-29 02:09:15,303 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d688dd0e3/775541f15cde4b61954875635166f668/FLAGfbcdb57e0 [2023-08-29 02:09:15,316 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d688dd0e3/775541f15cde4b61954875635166f668 [2023-08-29 02:09:15,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:09:15,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:09:15,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:09:15,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:09:15,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:09:15,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f16b219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15, skipping insertion in model container [2023-08-29 02:09:15,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:09:15,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:09:15,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:09:15,621 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:09:15,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:09:15,706 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:09:15,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15 WrapperNode [2023-08-29 02:09:15,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:09:15,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:09:15,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:09:15,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:09:15,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,740 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2023-08-29 02:09:15,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:09:15,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:09:15,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:09:15,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:09:15,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,757 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:09:15,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:09:15,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:09:15,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:09:15,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (1/1) ... [2023-08-29 02:09:15,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:09:15,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:09:15,788 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 02:09:15,793 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 02:09:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:09:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:09:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:09:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:09:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:09:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:09:15,811 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:09:15,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:09:15,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:09:15,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:09:15,812 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 02:09:15,920 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:09:15,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:09:16,087 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:09:16,092 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:09:16,092 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 02:09:16,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:09:16 BoogieIcfgContainer [2023-08-29 02:09:16,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:09:16,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:09:16,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:09:16,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:09:16,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:09:15" (1/3) ... [2023-08-29 02:09:16,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b10325e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:09:16, skipping insertion in model container [2023-08-29 02:09:16,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:15" (2/3) ... [2023-08-29 02:09:16,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b10325e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:09:16, skipping insertion in model container [2023-08-29 02:09:16,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:09:16" (3/3) ... [2023-08-29 02:09:16,099 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2023-08-29 02:09:16,104 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:09:16,110 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:09:16,110 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 02:09:16,110 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:09:16,181 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:09:16,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 207 flow [2023-08-29 02:09:16,260 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2023-08-29 02:09:16,260 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:09:16,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-29 02:09:16,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 101 transitions, 207 flow [2023-08-29 02:09:16,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 100 transitions, 203 flow [2023-08-29 02:09:16,269 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:09:16,278 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 100 transitions, 203 flow [2023-08-29 02:09:16,280 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 100 transitions, 203 flow [2023-08-29 02:09:16,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 203 flow [2023-08-29 02:09:16,303 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2023-08-29 02:09:16,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:09:16,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 2/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-29 02:09:16,305 INFO L119 LiptonReduction]: Number of co-enabled transitions 2550 [2023-08-29 02:09:17,247 INFO L134 LiptonReduction]: Checked pairs total: 13239 [2023-08-29 02:09:17,247 INFO L136 LiptonReduction]: Total number of compositions: 49 [2023-08-29 02:09:17,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:09:17,259 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;@3b0ae2a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:09:17,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-29 02:09:17,262 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2023-08-29 02:09:17,262 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:09:17,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:17,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:09:17,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:17,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash -808171140, now seen corresponding path program 1 times [2023-08-29 02:09:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:17,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910586253] [2023-08-29 02:09:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:17,432 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 02:09:17,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:17,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910586253] [2023-08-29 02:09:17,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910586253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:09:17,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:09:17,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:09:17,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766584189] [2023-08-29 02:09:17,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:09:17,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:09:17,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:17,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:09:17,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:09:17,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 150 [2023-08-29 02:09:17,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 02:09:17,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:17,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 150 [2023-08-29 02:09:17,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:17,574 INFO L130 PetriNetUnfolder]: 61/273 cut-off events. [2023-08-29 02:09:17,574 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:09:17,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 273 events. 61/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1170 event pairs, 60 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 404. Up to 141 conditions per place. [2023-08-29 02:09:17,579 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 19 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-08-29 02:09:17,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 151 flow [2023-08-29 02:09:17,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:09:17,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:09:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-08-29 02:09:17,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6822222222222222 [2023-08-29 02:09:17,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-08-29 02:09:17,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-08-29 02:09:17,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:17,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-08-29 02:09:17,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 02:09:17,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 02:09:17,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 02:09:17,608 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 107 flow. Second operand 3 states and 307 transitions. [2023-08-29 02:09:17,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 151 flow [2023-08-29 02:09:17,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:09:17,611 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 118 flow [2023-08-29 02:09:17,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2023-08-29 02:09:17,615 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2023-08-29 02:09:17,615 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 118 flow [2023-08-29 02:09:17,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 02:09:17,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:17,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:09:17,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:09:17,616 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:17,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:17,625 INFO L85 PathProgramCache]: Analyzing trace with hash -968427805, now seen corresponding path program 1 times [2023-08-29 02:09:17,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:17,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774223762] [2023-08-29 02:09:17,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:17,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:17,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:09:17,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:17,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774223762] [2023-08-29 02:09:17,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774223762] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:09:17,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325744646] [2023-08-29 02:09:17,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:17,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:09:17,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:09:17,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:09:17,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 02:09:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:17,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:09:17,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:09:17,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:09:17,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:09:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:09:17,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325744646] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:09:17,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:09:17,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 02:09:17,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245757986] [2023-08-29 02:09:17,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:09:17,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:09:17,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:17,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:09:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:09:17,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 150 [2023-08-29 02:09:17,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 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 02:09:17,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:17,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 150 [2023-08-29 02:09:17,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:17,971 INFO L130 PetriNetUnfolder]: 61/276 cut-off events. [2023-08-29 02:09:17,974 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:09:17,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 276 events. 61/276 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1150 event pairs, 60 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 423. Up to 141 conditions per place. [2023-08-29 02:09:17,977 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 19 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-08-29 02:09:17,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 178 flow [2023-08-29 02:09:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:09:17,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:09:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 591 transitions. [2023-08-29 02:09:17,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6566666666666666 [2023-08-29 02:09:17,981 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 591 transitions. [2023-08-29 02:09:17,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 591 transitions. [2023-08-29 02:09:17,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:17,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 591 transitions. [2023-08-29 02:09:17,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:09:17,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:17,985 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:17,985 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 118 flow. Second operand 6 states and 591 transitions. [2023-08-29 02:09:17,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 178 flow [2023-08-29 02:09:17,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 174 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 02:09:17,987 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 150 flow [2023-08-29 02:09:17,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2023-08-29 02:09:17,988 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2023-08-29 02:09:17,988 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 150 flow [2023-08-29 02:09:17,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 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 02:09:17,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:17,991 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:09:17,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 02:09:18,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:09:18,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:18,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:18,197 INFO L85 PathProgramCache]: Analyzing trace with hash -980343166, now seen corresponding path program 2 times [2023-08-29 02:09:18,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:18,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412897451] [2023-08-29 02:09:18,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:18,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:09:18,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:18,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412897451] [2023-08-29 02:09:18,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412897451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:09:18,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:09:18,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:09:18,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41994813] [2023-08-29 02:09:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:09:18,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:09:18,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:18,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:09:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:09:18,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 150 [2023-08-29 02:09:18,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 150 flow. Second operand has 6 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 02:09:18,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:18,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 150 [2023-08-29 02:09:18,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:18,836 INFO L130 PetriNetUnfolder]: 109/356 cut-off events. [2023-08-29 02:09:18,837 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 02:09:18,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 356 events. 109/356 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1530 event pairs, 72 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 598. Up to 171 conditions per place. [2023-08-29 02:09:18,839 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 51 selfloop transitions, 5 changer transitions 0/79 dead transitions. [2023-08-29 02:09:18,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 79 transitions, 308 flow [2023-08-29 02:09:18,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:09:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:09:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2023-08-29 02:09:18,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2023-08-29 02:09:18,841 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2023-08-29 02:09:18,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2023-08-29 02:09:18,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:18,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2023-08-29 02:09:18,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:09:18,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:18,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:18,844 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 150 flow. Second operand 6 states and 575 transitions. [2023-08-29 02:09:18,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 79 transitions, 308 flow [2023-08-29 02:09:18,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 79 transitions, 294 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 02:09:18,847 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 144 flow [2023-08-29 02:09:18,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=67, PETRI_TRANSITIONS=55} [2023-08-29 02:09:18,848 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 12 predicate places. [2023-08-29 02:09:18,848 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 144 flow [2023-08-29 02:09:18,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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 02:09:18,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:18,849 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:09:18,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:09:18,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:18,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:18,849 INFO L85 PathProgramCache]: Analyzing trace with hash -738465348, now seen corresponding path program 1 times [2023-08-29 02:09:18,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:18,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872270718] [2023-08-29 02:09:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:18,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:09:19,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:19,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872270718] [2023-08-29 02:09:19,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872270718] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:09:19,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:09:19,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:09:19,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214895305] [2023-08-29 02:09:19,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:09:19,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:09:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:19,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:09:19,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:09:19,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 150 [2023-08-29 02:09:19,201 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 02:09:19,201 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:19,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 150 [2023-08-29 02:09:19,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:19,453 INFO L130 PetriNetUnfolder]: 391/926 cut-off events. [2023-08-29 02:09:19,454 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-29 02:09:19,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1812 conditions, 926 events. 391/926 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4851 event pairs, 118 based on Foata normal form. 0/897 useless extension candidates. Maximal degree in co-relation 1785. Up to 387 conditions per place. [2023-08-29 02:09:19,456 INFO L137 encePairwiseOnDemand]: 128/150 looper letters, 134 selfloop transitions, 42 changer transitions 0/189 dead transitions. [2023-08-29 02:09:19,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 189 transitions, 772 flow [2023-08-29 02:09:19,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:09:19,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:09:19,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 630 transitions. [2023-08-29 02:09:19,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7 [2023-08-29 02:09:19,458 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 630 transitions. [2023-08-29 02:09:19,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 630 transitions. [2023-08-29 02:09:19,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:19,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 630 transitions. [2023-08-29 02:09:19,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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 02:09:19,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:19,461 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:19,461 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 144 flow. Second operand 6 states and 630 transitions. [2023-08-29 02:09:19,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 189 transitions, 772 flow [2023-08-29 02:09:19,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 189 transitions, 754 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 02:09:19,464 INFO L231 Difference]: Finished difference. Result has 72 places, 101 transitions, 450 flow [2023-08-29 02:09:19,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=72, PETRI_TRANSITIONS=101} [2023-08-29 02:09:19,465 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2023-08-29 02:09:19,465 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 101 transitions, 450 flow [2023-08-29 02:09:19,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 02:09:19,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:19,465 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:09:19,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:09:19,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:19,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:19,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2132318186, now seen corresponding path program 1 times [2023-08-29 02:09:19,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:19,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24222656] [2023-08-29 02:09:19,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:19,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:09:19,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:19,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24222656] [2023-08-29 02:09:19,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24222656] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:09:19,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601879987] [2023-08-29 02:09:19,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:19,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:09:19,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:09:19,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:09:19,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 02:09:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:19,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 02:09:19,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:09:19,618 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:09:19,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:09:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:09:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601879987] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:09:19,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:09:19,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 02:09:19,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241706535] [2023-08-29 02:09:19,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:09:19,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:09:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:19,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:09:19,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:09:19,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 150 [2023-08-29 02:09:19,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 101 transitions, 450 flow. Second operand has 13 states, 13 states have (on average 95.38461538461539) internal successors, (1240), 13 states have internal predecessors, (1240), 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 02:09:19,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:19,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 150 [2023-08-29 02:09:19,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:19,802 INFO L130 PetriNetUnfolder]: 181/619 cut-off events. [2023-08-29 02:09:19,803 INFO L131 PetriNetUnfolder]: For 274/299 co-relation queries the response was YES. [2023-08-29 02:09:19,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 619 events. 181/619 cut-off events. For 274/299 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3483 event pairs, 88 based on Foata normal form. 8/597 useless extension candidates. Maximal degree in co-relation 1484. Up to 265 conditions per place. [2023-08-29 02:09:19,805 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 35 selfloop transitions, 11 changer transitions 0/107 dead transitions. [2023-08-29 02:09:19,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 107 transitions, 578 flow [2023-08-29 02:09:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:09:19,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:09:19,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1164 transitions. [2023-08-29 02:09:19,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2023-08-29 02:09:19,809 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1164 transitions. [2023-08-29 02:09:19,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1164 transitions. [2023-08-29 02:09:19,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:19,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1164 transitions. [2023-08-29 02:09:19,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 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 02:09:19,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 150.0) internal successors, (1950), 13 states have internal predecessors, (1950), 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 02:09:19,814 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 150.0) internal successors, (1950), 13 states have internal predecessors, (1950), 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 02:09:19,815 INFO L175 Difference]: Start difference. First operand has 72 places, 101 transitions, 450 flow. Second operand 12 states and 1164 transitions. [2023-08-29 02:09:19,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 107 transitions, 578 flow [2023-08-29 02:09:19,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 107 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:09:19,821 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 534 flow [2023-08-29 02:09:19,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=534, PETRI_PLACES=89, PETRI_TRANSITIONS=107} [2023-08-29 02:09:19,823 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 34 predicate places. [2023-08-29 02:09:19,824 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 534 flow [2023-08-29 02:09:19,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 95.38461538461539) internal successors, (1240), 13 states have internal predecessors, (1240), 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 02:09:19,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:19,825 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:09:19,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 02:09:20,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:09:20,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:20,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash -632470454, now seen corresponding path program 2 times [2023-08-29 02:09:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:20,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556087021] [2023-08-29 02:09:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:20,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:20,251 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:09:20,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:20,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556087021] [2023-08-29 02:09:20,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556087021] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:09:20,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:09:20,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:09:20,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140267810] [2023-08-29 02:09:20,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:09:20,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:09:20,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:20,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:09:20,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:09:20,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 150 [2023-08-29 02:09:20,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 107 transitions, 534 flow. Second operand has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 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 02:09:20,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:20,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 150 [2023-08-29 02:09:20,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:20,550 INFO L130 PetriNetUnfolder]: 229/720 cut-off events. [2023-08-29 02:09:20,551 INFO L131 PetriNetUnfolder]: For 313/337 co-relation queries the response was YES. [2023-08-29 02:09:20,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1819 conditions, 720 events. 229/720 cut-off events. For 313/337 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3994 event pairs, 106 based on Foata normal form. 2/693 useless extension candidates. Maximal degree in co-relation 1739. Up to 314 conditions per place. [2023-08-29 02:09:20,555 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 73 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2023-08-29 02:09:20,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 130 transitions, 760 flow [2023-08-29 02:09:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:09:20,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:09:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2023-08-29 02:09:20,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6188888888888889 [2023-08-29 02:09:20,557 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2023-08-29 02:09:20,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2023-08-29 02:09:20,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:20,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2023-08-29 02:09:20,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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 02:09:20,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:20,560 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:20,560 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 534 flow. Second operand 6 states and 557 transitions. [2023-08-29 02:09:20,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 130 transitions, 760 flow [2023-08-29 02:09:20,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 130 transitions, 712 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-29 02:09:20,565 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 494 flow [2023-08-29 02:09:20,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2023-08-29 02:09:20,567 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 33 predicate places. [2023-08-29 02:09:20,567 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 494 flow [2023-08-29 02:09:20,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 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 02:09:20,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:20,567 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:09:20,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:09:20,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:20,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:20,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1318939415, now seen corresponding path program 1 times [2023-08-29 02:09:20,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:20,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623617275] [2023-08-29 02:09:20,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:20,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:09:20,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:20,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623617275] [2023-08-29 02:09:20,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623617275] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:09:20,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:09:20,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:09:20,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948641586] [2023-08-29 02:09:20,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:09:20,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:09:20,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:20,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:09:20,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:09:20,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 150 [2023-08-29 02:09:20,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 02:09:20,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:20,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 150 [2023-08-29 02:09:20,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:21,154 INFO L130 PetriNetUnfolder]: 493/1155 cut-off events. [2023-08-29 02:09:21,154 INFO L131 PetriNetUnfolder]: For 649/658 co-relation queries the response was YES. [2023-08-29 02:09:21,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3414 conditions, 1155 events. 493/1155 cut-off events. For 649/658 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6145 event pairs, 193 based on Foata normal form. 28/1176 useless extension candidates. Maximal degree in co-relation 3358. Up to 791 conditions per place. [2023-08-29 02:09:21,159 INFO L137 encePairwiseOnDemand]: 134/150 looper letters, 140 selfloop transitions, 46 changer transitions 6/205 dead transitions. [2023-08-29 02:09:21,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 205 transitions, 1270 flow [2023-08-29 02:09:21,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:09:21,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:09:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 576 transitions. [2023-08-29 02:09:21,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.64 [2023-08-29 02:09:21,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 576 transitions. [2023-08-29 02:09:21,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 576 transitions. [2023-08-29 02:09:21,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:21,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 576 transitions. [2023-08-29 02:09:21,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.0) internal successors, (576), 6 states have internal predecessors, (576), 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 02:09:21,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:21,164 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:21,164 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 494 flow. Second operand 6 states and 576 transitions. [2023-08-29 02:09:21,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 205 transitions, 1270 flow [2023-08-29 02:09:21,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 205 transitions, 1244 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 02:09:21,169 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 907 flow [2023-08-29 02:09:21,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=907, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2023-08-29 02:09:21,169 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 37 predicate places. [2023-08-29 02:09:21,169 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 907 flow [2023-08-29 02:09:21,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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 02:09:21,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:21,170 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 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 02:09:21,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:09:21,170 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:21,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:21,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1916402641, now seen corresponding path program 1 times [2023-08-29 02:09:21,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:21,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119973816] [2023-08-29 02:09:21,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:21,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:21,419 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:09:21,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:21,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119973816] [2023-08-29 02:09:21,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119973816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:09:21,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:09:21,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:09:21,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861120710] [2023-08-29 02:09:21,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:09:21,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:09:21,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:21,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:09:21,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:09:21,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 150 [2023-08-29 02:09:21,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 907 flow. Second operand has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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 02:09:21,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:21,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 150 [2023-08-29 02:09:21,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:21,787 INFO L130 PetriNetUnfolder]: 603/1382 cut-off events. [2023-08-29 02:09:21,787 INFO L131 PetriNetUnfolder]: For 1964/1982 co-relation queries the response was YES. [2023-08-29 02:09:21,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4878 conditions, 1382 events. 603/1382 cut-off events. For 1964/1982 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7585 event pairs, 204 based on Foata normal form. 26/1397 useless extension candidates. Maximal degree in co-relation 4818. Up to 905 conditions per place. [2023-08-29 02:09:21,794 INFO L137 encePairwiseOnDemand]: 133/150 looper letters, 144 selfloop transitions, 58 changer transitions 28/243 dead transitions. [2023-08-29 02:09:21,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 243 transitions, 1847 flow [2023-08-29 02:09:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:09:21,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:09:21,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 558 transitions. [2023-08-29 02:09:21,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.62 [2023-08-29 02:09:21,795 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 558 transitions. [2023-08-29 02:09:21,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 558 transitions. [2023-08-29 02:09:21,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:21,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 558 transitions. [2023-08-29 02:09:21,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 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 02:09:21,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:21,798 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 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 02:09:21,798 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 907 flow. Second operand 6 states and 558 transitions. [2023-08-29 02:09:21,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 243 transitions, 1847 flow [2023-08-29 02:09:21,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 243 transitions, 1813 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-08-29 02:09:21,806 INFO L231 Difference]: Finished difference. Result has 101 places, 181 transitions, 1302 flow [2023-08-29 02:09:21,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1302, PETRI_PLACES=101, PETRI_TRANSITIONS=181} [2023-08-29 02:09:21,807 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 46 predicate places. [2023-08-29 02:09:21,807 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 181 transitions, 1302 flow [2023-08-29 02:09:21,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.5) internal successors, (465), 6 states have internal predecessors, (465), 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 02:09:21,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:09:21,807 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 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, 1, 1] [2023-08-29 02:09:21,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:09:21,808 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:09:21,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:09:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1651890848, now seen corresponding path program 1 times [2023-08-29 02:09:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:09:21,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115821872] [2023-08-29 02:09:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:09:21,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:09:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:09:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:09:21,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:09:21,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115821872] [2023-08-29 02:09:21,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115821872] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:09:21,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:09:21,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:09:21,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874991463] [2023-08-29 02:09:21,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:09:21,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:09:21,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:09:21,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:09:21,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:09:21,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 150 [2023-08-29 02:09:21,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 181 transitions, 1302 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 02:09:21,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:09:21,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 150 [2023-08-29 02:09:21,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:09:21,942 INFO L130 PetriNetUnfolder]: 32/178 cut-off events. [2023-08-29 02:09:21,942 INFO L131 PetriNetUnfolder]: For 301/307 co-relation queries the response was YES. [2023-08-29 02:09:21,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 178 events. 32/178 cut-off events. For 301/307 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 508 event pairs, 17 based on Foata normal form. 16/191 useless extension candidates. Maximal degree in co-relation 493. Up to 70 conditions per place. [2023-08-29 02:09:21,943 INFO L137 encePairwiseOnDemand]: 146/150 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2023-08-29 02:09:21,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 61 transitions, 372 flow [2023-08-29 02:09:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:09:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:09:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-08-29 02:09:21,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6822222222222222 [2023-08-29 02:09:21,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-08-29 02:09:21,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-08-29 02:09:21,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:09:21,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-08-29 02:09:21,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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 02:09:21,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 02:09:21,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 150.0) internal successors, (600), 4 states have internal predecessors, (600), 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 02:09:21,946 INFO L175 Difference]: Start difference. First operand has 101 places, 181 transitions, 1302 flow. Second operand 3 states and 307 transitions. [2023-08-29 02:09:21,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 61 transitions, 372 flow [2023-08-29 02:09:21,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 242 flow, removed 27 selfloop flow, removed 28 redundant places. [2023-08-29 02:09:21,948 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-08-29 02:09:21,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2023-08-29 02:09:21,948 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2023-08-29 02:09:21,948 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-08-29 02:09:21,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 02:09:21,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-29 02:09:21,950 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-29 02:09:21,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-29 02:09:21,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-29 02:09:21,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-29 02:09:21,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-29 02:09:21,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-29 02:09:21,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-29 02:09:21,951 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-29 02:09:21,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:09:21,952 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-08-29 02:09:21,954 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:09:21,955 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:09:21,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:09:21 BasicIcfg [2023-08-29 02:09:21,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:09:21,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:09:21,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:09:21,957 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:09:21,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:09:16" (3/4) ... [2023-08-29 02:09:21,959 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 02:09:21,962 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 02:09:21,964 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-29 02:09:21,965 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 02:09:21,965 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 02:09:21,982 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 02:09:21,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:09:21,983 INFO L158 Benchmark]: Toolchain (without parser) took 6664.27ms. Allocated memory was 73.4MB in the beginning and 161.5MB in the end (delta: 88.1MB). Free memory was 49.5MB in the beginning and 114.5MB in the end (delta: -65.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2023-08-29 02:09:21,983 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:09:21,984 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.31ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 48.6MB in the end (delta: 736.3kB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2023-08-29 02:09:21,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.12ms. Allocated memory is still 73.4MB. Free memory was 48.6MB in the beginning and 46.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:09:21,984 INFO L158 Benchmark]: Boogie Preprocessor took 19.16ms. Allocated memory is still 73.4MB. Free memory was 46.3MB in the beginning and 44.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:09:21,984 INFO L158 Benchmark]: RCFGBuilder took 333.39ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 44.4MB in the beginning and 65.5MB in the end (delta: -21.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-08-29 02:09:21,984 INFO L158 Benchmark]: TraceAbstraction took 5861.77ms. Allocated memory was 90.2MB in the beginning and 161.5MB in the end (delta: 71.3MB). Free memory was 64.6MB in the beginning and 116.5MB in the end (delta: -51.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-08-29 02:09:21,985 INFO L158 Benchmark]: Witness Printer took 25.95ms. Allocated memory is still 161.5MB. Free memory was 116.5MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:09:21,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.31ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 48.6MB in the end (delta: 736.3kB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.12ms. Allocated memory is still 73.4MB. Free memory was 48.6MB in the beginning and 46.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.16ms. Allocated memory is still 73.4MB. Free memory was 46.3MB in the beginning and 44.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 333.39ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 44.4MB in the beginning and 65.5MB in the end (delta: -21.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 5861.77ms. Allocated memory was 90.2MB in the beginning and 161.5MB in the end (delta: 71.3MB). Free memory was 64.6MB in the beginning and 116.5MB in the end (delta: -51.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Witness Printer took 25.95ms. Allocated memory is still 161.5MB. Free memory was 116.5MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 102 PlacesBefore, 55 PlacesAfterwards, 100 TransitionsBefore, 52 TransitionsAfterwards, 2550 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 49 TotalNumberOfCompositions, 13239 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2533, independent: 2010, independent conditional: 0, independent unconditional: 2010, dependent: 523, dependent conditional: 0, dependent unconditional: 523, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1043, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2533, independent: 1064, independent conditional: 0, independent unconditional: 1064, dependent: 426, dependent conditional: 0, dependent unconditional: 426, unknown: 1043, unknown conditional: 0, unknown unconditional: 1043] , Statistics on independence cache: Total cache size (in pairs): 202, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 127 locations, 9 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: 5.7s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 903 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 394 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2464 IncrementalHoareTripleChecker+Invalid, 2858 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 394 mSolverCounterUnsat, 101 mSDtfsCounter, 2464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1302occurred in iteration=8, InterpolantAutomatonStates: 54, 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, 1.5s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 233 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 240/273 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 02:09:22,000 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 Result: TRUE