./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 TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:41:09,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:41:09,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:41:09,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:41:09,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:41:09,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:41:09,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:41:09,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:41:09,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:41:09,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:41:09,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:41:09,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:41:09,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:41:09,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:41:09,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:41:09,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:41:09,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:41:09,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:41:09,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:41:09,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:41:09,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:41:09,819 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:41:09,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:41:09,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:41:09,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:41:09,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:41:09,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:41:09,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:41:09,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:41:09,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:41:09,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:41:09,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:41:09,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:41:09,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:41:09,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:41:09,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:41:09,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:41:09,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:41:09,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:41:09,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:41:09,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:41:09,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:41:09,869 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:41:09,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:41:09,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:41:09,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:41:09,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:41:09,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:41:09,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:41:09,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:41:09,873 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:41:09,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:41:09,874 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:41:09,874 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:41:09,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:41:09,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:41:09,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:41:09,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:41:09,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:41:09,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:41:09,875 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:41:09,875 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:41:09,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:41:09,876 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:41:09,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:41:09,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:41:09,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:41:09,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:41:09,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:41:09,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:41:09,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:41:09,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:41:09,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:41:09,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:41:09,878 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:41:09,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:41:09,878 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:41:09,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:41:09,879 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:41:09,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:41:10,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:41:10,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:41:10,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:41:10,210 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:41:10,211 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:41:10,212 INFO L432 ainManager$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 17:41:11,300 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:41:11,569 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:41:11,569 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_23-idxsense_nr.i [2023-08-29 17:41:11,580 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88c3a207/953b8a78ec5e4007a3f3ccc554f3c4a0/FLAG1d5a8b126 [2023-08-29 17:41:11,594 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88c3a207/953b8a78ec5e4007a3f3ccc554f3c4a0 [2023-08-29 17:41:11,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:41:11,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:41:11,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:41:11,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:41:11,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:41:11,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:41:11" (1/1) ... [2023-08-29 17:41:11,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41acc5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:11, skipping insertion in model container [2023-08-29 17:41:11,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:41:11" (1/1) ... [2023-08-29 17:41:11,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:41:11,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:41:11,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:41:11,994 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:41:12,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:41:12,097 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:41:12,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12 WrapperNode [2023-08-29 17:41:12,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:41:12,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:41:12,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:41:12,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:41:12,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,159 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2023-08-29 17:41:12,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:41:12,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:41:12,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:41:12,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:41:12,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,205 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:41:12,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:41:12,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:41:12,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:41:12,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (1/1) ... [2023-08-29 17:41:12,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:41:12,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:41:12,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 17:41:12,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 17:41:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:41:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:41:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:41:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:41:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:41:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:41:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:41:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:41:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:41:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:41:12,285 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 17:41:12,460 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:41:12,462 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:41:12,627 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:41:12,639 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:41:12,639 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 17:41:12,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:41:12 BoogieIcfgContainer [2023-08-29 17:41:12,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:41:12,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:41:12,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:41:12,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:41:12,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:41:11" (1/3) ... [2023-08-29 17:41:12,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9c14a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:41:12, skipping insertion in model container [2023-08-29 17:41:12,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:12" (2/3) ... [2023-08-29 17:41:12,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9c14a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:41:12, skipping insertion in model container [2023-08-29 17:41:12,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:41:12" (3/3) ... [2023-08-29 17:41:12,657 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2023-08-29 17:41:12,664 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:41:12,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:41:12,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 17:41:12,673 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:41:12,756 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:41:12,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 207 flow [2023-08-29 17:41:12,861 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2023-08-29 17:41:12,861 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:12,864 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 17:41:12,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 101 transitions, 207 flow [2023-08-29 17:41:12,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 100 transitions, 203 flow [2023-08-29 17:41:12,873 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:41:12,890 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 100 transitions, 203 flow [2023-08-29 17:41:12,894 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 100 transitions, 203 flow [2023-08-29 17:41:12,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 100 transitions, 203 flow [2023-08-29 17:41:12,928 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2023-08-29 17:41:12,928 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:12,929 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 17:41:12,931 INFO L119 LiptonReduction]: Number of co-enabled transitions 2550 [2023-08-29 17:41:14,199 INFO L134 LiptonReduction]: Checked pairs total: 13239 [2023-08-29 17:41:14,199 INFO L136 LiptonReduction]: Total number of compositions: 49 [2023-08-29 17:41:14,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:41:14,215 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;@23832778, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:41:14,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-29 17:41:14,220 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2023-08-29 17:41:14,220 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:14,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:14,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:14,222 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 17:41:14,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash -808171140, now seen corresponding path program 1 times [2023-08-29 17:41:14,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:14,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449662374] [2023-08-29 17:41:14,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:14,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:14,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:41:14,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:14,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449662374] [2023-08-29 17:41:14,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449662374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:14,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:14,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:41:14,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682881743] [2023-08-29 17:41:14,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:14,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:41:14,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:14,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:41:14,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:41:14,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 150 [2023-08-29 17:41:14,502 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 17:41:14,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:14,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 150 [2023-08-29 17:41:14,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:14,619 INFO L130 PetriNetUnfolder]: 61/273 cut-off events. [2023-08-29 17:41:14,619 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:14,621 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 17:41:14,622 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 19 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-08-29 17:41:14,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 151 flow [2023-08-29 17:41:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:41:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:41:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-08-29 17:41:14,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6822222222222222 [2023-08-29 17:41:14,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-08-29 17:41:14,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-08-29 17:41:14,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:14,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-08-29 17:41:14,642 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 17:41:14,646 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 17:41:14,646 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 17:41:14,647 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 107 flow. Second operand 3 states and 307 transitions. [2023-08-29 17:41:14,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 151 flow [2023-08-29 17:41:14,650 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 17:41:14,652 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 118 flow [2023-08-29 17:41:14,653 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 17:41:14,656 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2023-08-29 17:41:14,656 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 118 flow [2023-08-29 17:41:14,656 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 17:41:14,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:14,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:14,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:41:14,657 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 17:41:14,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:14,658 INFO L85 PathProgramCache]: Analyzing trace with hash -968427805, now seen corresponding path program 1 times [2023-08-29 17:41:14,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:14,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022758980] [2023-08-29 17:41:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:14,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:14,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:41:14,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:14,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022758980] [2023-08-29 17:41:14,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022758980] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:41:14,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071412918] [2023-08-29 17:41:14,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:14,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:41:14,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:41:14,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:41:14,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 17:41:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:14,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:41:14,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:41:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:41:14,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:41:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:41:14,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071412918] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:41:14,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:41:14,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 17:41:14,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30964027] [2023-08-29 17:41:14,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:41:14,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 17:41:14,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:14,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 17:41:14,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 17:41:14,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 150 [2023-08-29 17:41:14,964 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 17:41:14,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:14,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 150 [2023-08-29 17:41:14,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:15,086 INFO L130 PetriNetUnfolder]: 61/276 cut-off events. [2023-08-29 17:41:15,086 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:15,089 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 17:41:15,090 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 19 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2023-08-29 17:41:15,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 178 flow [2023-08-29 17:41:15,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 591 transitions. [2023-08-29 17:41:15,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6566666666666666 [2023-08-29 17:41:15,098 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 591 transitions. [2023-08-29 17:41:15,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 591 transitions. [2023-08-29 17:41:15,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:15,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 591 transitions. [2023-08-29 17:41:15,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:41:15,104 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 17:41:15,105 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 17:41:15,105 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 118 flow. Second operand 6 states and 591 transitions. [2023-08-29 17:41:15,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 178 flow [2023-08-29 17:41:15,106 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 17:41:15,107 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 150 flow [2023-08-29 17:41:15,108 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 17:41:15,109 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2023-08-29 17:41:15,109 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 150 flow [2023-08-29 17:41:15,113 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 17:41:15,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:15,113 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:15,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 17:41:15,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:41:15,318 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 17:41:15,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:15,319 INFO L85 PathProgramCache]: Analyzing trace with hash -980343166, now seen corresponding path program 2 times [2023-08-29 17:41:15,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:15,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140606070] [2023-08-29 17:41:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:15,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:15,745 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 17:41:15,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:15,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140606070] [2023-08-29 17:41:15,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140606070] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:15,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:15,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:15,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843561351] [2023-08-29 17:41:15,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:15,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:15,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:15,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:15,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:16,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 150 [2023-08-29 17:41:16,016 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 17:41:16,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:16,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 150 [2023-08-29 17:41:16,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:16,125 INFO L130 PetriNetUnfolder]: 109/356 cut-off events. [2023-08-29 17:41:16,125 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 17:41:16,126 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 17:41:16,142 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 51 selfloop transitions, 5 changer transitions 0/79 dead transitions. [2023-08-29 17:41:16,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 79 transitions, 308 flow [2023-08-29 17:41:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:16,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:16,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2023-08-29 17:41:16,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2023-08-29 17:41:16,144 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2023-08-29 17:41:16,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2023-08-29 17:41:16,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:16,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2023-08-29 17:41:16,146 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 17:41:16,148 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 17:41:16,149 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 17:41:16,149 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 150 flow. Second operand 6 states and 575 transitions. [2023-08-29 17:41:16,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 79 transitions, 308 flow [2023-08-29 17:41:16,150 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 17:41:16,152 INFO L231 Difference]: Finished difference. Result has 67 places, 55 transitions, 144 flow [2023-08-29 17:41:16,152 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 17:41:16,152 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 12 predicate places. [2023-08-29 17:41:16,153 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 144 flow [2023-08-29 17:41:16,153 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 17:41:16,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:16,153 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:41:16,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:41:16,154 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 17:41:16,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:16,154 INFO L85 PathProgramCache]: Analyzing trace with hash -738465348, now seen corresponding path program 1 times [2023-08-29 17:41:16,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:16,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574399802] [2023-08-29 17:41:16,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:16,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:16,359 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 17:41:16,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:16,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574399802] [2023-08-29 17:41:16,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574399802] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:16,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:16,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:16,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071409640] [2023-08-29 17:41:16,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:16,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:16,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:16,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:16,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:16,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 150 [2023-08-29 17:41:16,582 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 17:41:16,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:16,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 150 [2023-08-29 17:41:16,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:16,911 INFO L130 PetriNetUnfolder]: 391/926 cut-off events. [2023-08-29 17:41:16,912 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2023-08-29 17:41:16,913 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 17:41:16,917 INFO L137 encePairwiseOnDemand]: 128/150 looper letters, 134 selfloop transitions, 42 changer transitions 0/189 dead transitions. [2023-08-29 17:41:16,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 189 transitions, 772 flow [2023-08-29 17:41:16,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:16,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 630 transitions. [2023-08-29 17:41:16,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7 [2023-08-29 17:41:16,920 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 630 transitions. [2023-08-29 17:41:16,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 630 transitions. [2023-08-29 17:41:16,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:16,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 630 transitions. [2023-08-29 17:41:16,922 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 17:41:16,923 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 17:41:16,924 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 17:41:16,924 INFO L175 Difference]: Start difference. First operand has 67 places, 55 transitions, 144 flow. Second operand 6 states and 630 transitions. [2023-08-29 17:41:16,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 189 transitions, 772 flow [2023-08-29 17:41:16,926 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 17:41:16,928 INFO L231 Difference]: Finished difference. Result has 72 places, 101 transitions, 450 flow [2023-08-29 17:41:16,929 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 17:41:16,929 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2023-08-29 17:41:16,930 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 101 transitions, 450 flow [2023-08-29 17:41:16,930 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 17:41:16,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:16,930 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 17:41:16,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:41:16,931 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 17:41:16,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2132318186, now seen corresponding path program 1 times [2023-08-29 17:41:16,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:16,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127895638] [2023-08-29 17:41:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:16,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:41:17,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:17,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127895638] [2023-08-29 17:41:17,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127895638] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:41:17,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782745410] [2023-08-29 17:41:17,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:17,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:41:17,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:41:17,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 17:41:17,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 17:41:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:17,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 17:41:17,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:41:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:41:17,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:41:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:41:17,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782745410] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:41:17,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:41:17,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 17:41:17,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488257523] [2023-08-29 17:41:17,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:41:17,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 17:41:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 17:41:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-29 17:41:17,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 150 [2023-08-29 17:41:17,255 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 17:41:17,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:17,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 150 [2023-08-29 17:41:17,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:17,397 INFO L130 PetriNetUnfolder]: 181/619 cut-off events. [2023-08-29 17:41:17,397 INFO L131 PetriNetUnfolder]: For 274/299 co-relation queries the response was YES. [2023-08-29 17:41:17,399 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 17:41:17,401 INFO L137 encePairwiseOnDemand]: 147/150 looper letters, 35 selfloop transitions, 11 changer transitions 0/107 dead transitions. [2023-08-29 17:41:17,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 107 transitions, 578 flow [2023-08-29 17:41:17,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:41:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:41:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1164 transitions. [2023-08-29 17:41:17,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2023-08-29 17:41:17,406 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1164 transitions. [2023-08-29 17:41:17,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1164 transitions. [2023-08-29 17:41:17,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:17,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1164 transitions. [2023-08-29 17:41:17,409 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 17:41:17,414 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 17:41:17,415 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 17:41:17,415 INFO L175 Difference]: Start difference. First operand has 72 places, 101 transitions, 450 flow. Second operand 12 states and 1164 transitions. [2023-08-29 17:41:17,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 107 transitions, 578 flow [2023-08-29 17:41:17,422 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 17:41:17,425 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 534 flow [2023-08-29 17:41:17,425 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 17:41:17,427 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 34 predicate places. [2023-08-29 17:41:17,427 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 534 flow [2023-08-29 17:41:17,428 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 17:41:17,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:17,428 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 17:41:17,434 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 17:41:17,633 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 17:41:17,634 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 17:41:17,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:17,634 INFO L85 PathProgramCache]: Analyzing trace with hash -632470454, now seen corresponding path program 2 times [2023-08-29 17:41:17,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:17,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553048042] [2023-08-29 17:41:17,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:17,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:18,005 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 17:41:18,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553048042] [2023-08-29 17:41:18,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553048042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:18,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:18,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:18,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514436517] [2023-08-29 17:41:18,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:18,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:18,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:18,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:18,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 150 [2023-08-29 17:41:18,227 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 17:41:18,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:18,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 150 [2023-08-29 17:41:18,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:18,400 INFO L130 PetriNetUnfolder]: 229/720 cut-off events. [2023-08-29 17:41:18,401 INFO L131 PetriNetUnfolder]: For 313/337 co-relation queries the response was YES. [2023-08-29 17:41:18,403 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 17:41:18,406 INFO L137 encePairwiseOnDemand]: 144/150 looper letters, 73 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2023-08-29 17:41:18,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 130 transitions, 760 flow [2023-08-29 17:41:18,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:18,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:18,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2023-08-29 17:41:18,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6188888888888889 [2023-08-29 17:41:18,409 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2023-08-29 17:41:18,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2023-08-29 17:41:18,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:18,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2023-08-29 17:41:18,412 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 17:41:18,413 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 17:41:18,414 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 17:41:18,414 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 534 flow. Second operand 6 states and 557 transitions. [2023-08-29 17:41:18,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 130 transitions, 760 flow [2023-08-29 17:41:18,418 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 17:41:18,421 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 494 flow [2023-08-29 17:41:18,421 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 17:41:18,423 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 33 predicate places. [2023-08-29 17:41:18,424 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 494 flow [2023-08-29 17:41:18,424 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 17:41:18,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:18,424 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 17:41:18,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:41:18,425 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 17:41:18,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:18,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1318939415, now seen corresponding path program 1 times [2023-08-29 17:41:18,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:18,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156778677] [2023-08-29 17:41:18,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:18,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:18,702 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 17:41:18,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:18,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156778677] [2023-08-29 17:41:18,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156778677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:18,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:18,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:18,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515180820] [2023-08-29 17:41:18,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:18,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:18,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:18,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:18,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:18,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 150 [2023-08-29 17:41:18,871 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 17:41:18,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:18,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 150 [2023-08-29 17:41:18,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:19,166 INFO L130 PetriNetUnfolder]: 493/1155 cut-off events. [2023-08-29 17:41:19,166 INFO L131 PetriNetUnfolder]: For 649/658 co-relation queries the response was YES. [2023-08-29 17:41:19,169 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 17:41:19,173 INFO L137 encePairwiseOnDemand]: 134/150 looper letters, 140 selfloop transitions, 46 changer transitions 6/205 dead transitions. [2023-08-29 17:41:19,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 205 transitions, 1270 flow [2023-08-29 17:41:19,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:19,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 576 transitions. [2023-08-29 17:41:19,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.64 [2023-08-29 17:41:19,175 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 576 transitions. [2023-08-29 17:41:19,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 576 transitions. [2023-08-29 17:41:19,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:19,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 576 transitions. [2023-08-29 17:41:19,176 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 17:41:19,178 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 17:41:19,178 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 17:41:19,178 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 494 flow. Second operand 6 states and 576 transitions. [2023-08-29 17:41:19,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 205 transitions, 1270 flow [2023-08-29 17:41:19,182 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 17:41:19,184 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 907 flow [2023-08-29 17:41:19,184 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 17:41:19,185 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 37 predicate places. [2023-08-29 17:41:19,185 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 907 flow [2023-08-29 17:41:19,185 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 17:41:19,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:19,186 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 17:41:19,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:41:19,186 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 17:41:19,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1916402641, now seen corresponding path program 1 times [2023-08-29 17:41:19,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:19,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965686097] [2023-08-29 17:41:19,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:19,511 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 17:41:19,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:19,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965686097] [2023-08-29 17:41:19,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965686097] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:19,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:19,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:41:19,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426001567] [2023-08-29 17:41:19,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:19,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:41:19,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:19,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:41:19,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:41:19,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 150 [2023-08-29 17:41:19,722 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 17:41:19,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:19,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 150 [2023-08-29 17:41:19,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:19,998 INFO L130 PetriNetUnfolder]: 603/1382 cut-off events. [2023-08-29 17:41:19,999 INFO L131 PetriNetUnfolder]: For 1964/1982 co-relation queries the response was YES. [2023-08-29 17:41:20,002 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 17:41:20,008 INFO L137 encePairwiseOnDemand]: 133/150 looper letters, 144 selfloop transitions, 58 changer transitions 28/243 dead transitions. [2023-08-29 17:41:20,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 243 transitions, 1847 flow [2023-08-29 17:41:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:41:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:41:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 558 transitions. [2023-08-29 17:41:20,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.62 [2023-08-29 17:41:20,010 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 558 transitions. [2023-08-29 17:41:20,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 558 transitions. [2023-08-29 17:41:20,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:20,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 558 transitions. [2023-08-29 17:41:20,012 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 17:41:20,014 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 17:41:20,014 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 17:41:20,014 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 907 flow. Second operand 6 states and 558 transitions. [2023-08-29 17:41:20,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 243 transitions, 1847 flow [2023-08-29 17:41:20,023 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 17:41:20,026 INFO L231 Difference]: Finished difference. Result has 101 places, 181 transitions, 1302 flow [2023-08-29 17:41:20,027 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 17:41:20,027 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 46 predicate places. [2023-08-29 17:41:20,027 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 181 transitions, 1302 flow [2023-08-29 17:41:20,028 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 17:41:20,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:41:20,028 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 17:41:20,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:41:20,028 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 17:41:20,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:41:20,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1651890848, now seen corresponding path program 1 times [2023-08-29 17:41:20,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:41:20,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440482427] [2023-08-29 17:41:20,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:41:20,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:41:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:41:20,161 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 17:41:20,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:41:20,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440482427] [2023-08-29 17:41:20,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440482427] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:41:20,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:41:20,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 17:41:20,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885544528] [2023-08-29 17:41:20,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:41:20,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:41:20,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:41:20,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:41:20,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:41:20,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 150 [2023-08-29 17:41:20,173 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 17:41:20,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:41:20,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 150 [2023-08-29 17:41:20,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:41:20,222 INFO L130 PetriNetUnfolder]: 32/178 cut-off events. [2023-08-29 17:41:20,222 INFO L131 PetriNetUnfolder]: For 301/307 co-relation queries the response was YES. [2023-08-29 17:41:20,223 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 17:41:20,223 INFO L137 encePairwiseOnDemand]: 146/150 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2023-08-29 17:41:20,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 61 transitions, 372 flow [2023-08-29 17:41:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:41:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:41:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2023-08-29 17:41:20,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6822222222222222 [2023-08-29 17:41:20,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2023-08-29 17:41:20,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2023-08-29 17:41:20,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:41:20,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2023-08-29 17:41:20,226 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 17:41:20,226 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 17:41:20,227 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 17:41:20,227 INFO L175 Difference]: Start difference. First operand has 101 places, 181 transitions, 1302 flow. Second operand 3 states and 307 transitions. [2023-08-29 17:41:20,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 61 transitions, 372 flow [2023-08-29 17:41:20,229 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 17:41:20,229 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-08-29 17:41:20,229 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 17:41:20,230 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2023-08-29 17:41:20,230 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-08-29 17:41:20,230 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 17:41:20,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-29 17:41:20,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-29 17:41:20,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-29 17:41:20,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-29 17:41:20,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-29 17:41:20,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-29 17:41:20,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-29 17:41:20,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-29 17:41:20,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-29 17:41:20,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:41:20,234 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-08-29 17:41:20,238 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:41:20,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:41:20,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:41:20 BasicIcfg [2023-08-29 17:41:20,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:41:20,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:41:20,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:41:20,241 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:41:20,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:41:12" (3/4) ... [2023-08-29 17:41:20,243 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 17:41:20,248 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 17:41:20,251 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-29 17:41:20,251 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-29 17:41:20,251 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 17:41:20,277 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 17:41:20,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:41:20,278 INFO L158 Benchmark]: Toolchain (without parser) took 8679.72ms. Allocated memory was 69.2MB in the beginning and 176.2MB in the end (delta: 107.0MB). Free memory was 46.6MB in the beginning and 61.0MB in the end (delta: -14.4MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:20,278 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:41:20,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.25ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 43.8MB in the end (delta: 2.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:20,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.34ms. Allocated memory is still 69.2MB. Free memory was 43.8MB in the beginning and 41.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:20,279 INFO L158 Benchmark]: Boogie Preprocessor took 54.29ms. Allocated memory is still 69.2MB. Free memory was 41.5MB in the beginning and 39.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:20,279 INFO L158 Benchmark]: RCFGBuilder took 429.88ms. Allocated memory is still 69.2MB. Free memory was 39.4MB in the beginning and 41.5MB in the end (delta: -2.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:20,279 INFO L158 Benchmark]: TraceAbstraction took 7594.61ms. Allocated memory was 69.2MB in the beginning and 176.2MB in the end (delta: 107.0MB). Free memory was 40.9MB in the beginning and 63.1MB in the end (delta: -22.2MB). Peak memory consumption was 85.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:20,279 INFO L158 Benchmark]: Witness Printer took 36.42ms. Allocated memory is still 176.2MB. Free memory was 63.1MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:41:20,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.25ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 43.8MB in the end (delta: 2.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.34ms. Allocated memory is still 69.2MB. Free memory was 43.8MB in the beginning and 41.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.29ms. Allocated memory is still 69.2MB. Free memory was 41.5MB in the beginning and 39.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.88ms. Allocated memory is still 69.2MB. Free memory was 39.4MB in the beginning and 41.5MB in the end (delta: -2.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7594.61ms. Allocated memory was 69.2MB in the beginning and 176.2MB in the end (delta: 107.0MB). Free memory was 40.9MB in the beginning and 63.1MB in the end (delta: -22.2MB). Peak memory consumption was 85.1MB. Max. memory is 16.1GB. * Witness Printer took 36.42ms. Allocated memory is still 176.2MB. Free memory was 63.1MB in the beginning and 61.0MB 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: 1.3s, 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: 7.4s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 903 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.5s 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, 0.2s 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s 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 17:41:20,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE