./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:13:08,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:13:08,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:13:08,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:13:08,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:13:08,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:13:08,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:13:08,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:13:08,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:13:08,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:13:08,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:13:08,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:13:08,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:13:08,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:13:08,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:13:08,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:13:08,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:13:08,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:13:08,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:13:08,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:13:08,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:13:08,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:13:08,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:13:08,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:13:08,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:13:08,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:13:08,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:13:08,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:13:08,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:13:08,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:13:08,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:13:08,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:13:08,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:13:08,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:13:08,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:13:08,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:13:08,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:13:08,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:13:08,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:13:08,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:13:08,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:13:08,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:13:08,640 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:13:08,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:13:08,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:13:08,642 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:13:08,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:13:08,643 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:13:08,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:13:08,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:13:08,644 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:13:08,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:13:08,645 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:13:08,645 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:13:08,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:13:08,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:13:08,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:13:08,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:13:08,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:13:08,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:13:08,646 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:13:08,646 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:13:08,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:13:08,647 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:13:08,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:13:08,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:13:08,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:13:08,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:13:08,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:13:08,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:13:08,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:13:08,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:13:08,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:13:08,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:13:08,649 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:13:08,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:13:08,649 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:13:08,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:13:08,650 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:13:08,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:13:08,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:13:08,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:13:08,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:13:08,944 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:13:08,944 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:13:08,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-31 20:13:10,156 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:13:10,485 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:13:10,486 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-31 20:13:10,502 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20cd73a7b/18c947945cef4b6a8f172831c01d1164/FLAG47d55fc70 [2023-08-31 20:13:10,516 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20cd73a7b/18c947945cef4b6a8f172831c01d1164 [2023-08-31 20:13:10,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:13:10,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:13:10,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:13:10,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:13:10,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:13:10,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:13:10" (1/1) ... [2023-08-31 20:13:10,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b1b4489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:10, skipping insertion in model container [2023-08-31 20:13:10,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:13:10" (1/1) ... [2023-08-31 20:13:10,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:13:10,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:13:11,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:13:11,049 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:13:11,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:13:11,190 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:13:11,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11 WrapperNode [2023-08-31 20:13:11,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:13:11,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:13:11,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:13:11,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:13:11,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,240 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2023-08-31 20:13:11,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:13:11,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:13:11,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:13:11,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:13:11,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,284 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:13:11,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:13:11,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:13:11,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:13:11,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (1/1) ... [2023-08-31 20:13:11,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:13:11,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:13:11,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 20:13:11,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 20:13:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:13:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 20:13:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:13:11,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:13:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:13:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:13:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 20:13:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:13:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 20:13:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:13:11,362 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:13:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:13:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:13:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:13:11,365 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:13:11,490 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:13:11,492 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:13:12,006 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:13:12,015 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:13:12,015 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:13:12,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:13:12 BoogieIcfgContainer [2023-08-31 20:13:12,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:13:12,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:13:12,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:13:12,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:13:12,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:13:10" (1/3) ... [2023-08-31 20:13:12,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ee5f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:13:12, skipping insertion in model container [2023-08-31 20:13:12,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:11" (2/3) ... [2023-08-31 20:13:12,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ee5f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:13:12, skipping insertion in model container [2023-08-31 20:13:12,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:13:12" (3/3) ... [2023-08-31 20:13:12,023 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2023-08-31 20:13:12,030 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:13:12,038 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:13:12,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-31 20:13:12,039 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:13:12,128 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:13:12,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 267 transitions, 539 flow [2023-08-31 20:13:12,289 INFO L130 PetriNetUnfolder]: 0/266 cut-off events. [2023-08-31 20:13:12,290 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:13:12,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 0/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 153 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 20:13:12,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 267 transitions, 539 flow [2023-08-31 20:13:12,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 266 transitions, 535 flow [2023-08-31 20:13:12,307 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:13:12,324 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-31 20:13:12,334 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-31 20:13:12,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 266 transitions, 535 flow [2023-08-31 20:13:12,390 INFO L130 PetriNetUnfolder]: 0/266 cut-off events. [2023-08-31 20:13:12,391 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:13:12,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 0/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 153 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 20:13:12,396 INFO L119 LiptonReduction]: Number of co-enabled transitions 7590 [2023-08-31 20:13:31,931 WARN L222 SmtUtils]: Spent 8.29s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:13:44,563 WARN L222 SmtUtils]: Spent 9.22s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:03,877 WARN L222 SmtUtils]: Spent 7.07s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:10,756 WARN L222 SmtUtils]: Spent 6.88s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:17,313 WARN L222 SmtUtils]: Spent 6.55s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:24,246 WARN L222 SmtUtils]: Spent 6.93s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:47,134 WARN L222 SmtUtils]: Spent 22.86s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:58,943 WARN L222 SmtUtils]: Spent 8.84s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:15:15,716 WARN L222 SmtUtils]: Spent 16.77s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:16:06,198 WARN L222 SmtUtils]: Spent 50.45s on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:16:55,551 WARN L222 SmtUtils]: Spent 49.35s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:18:42,494 WARN L222 SmtUtils]: Spent 1.78m on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:18:54,650 WARN L222 SmtUtils]: Spent 12.15s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:18:54,662 INFO L134 LiptonReduction]: Checked pairs total: 81588 [2023-08-31 20:18:54,662 INFO L136 LiptonReduction]: Total number of compositions: 227 [2023-08-31 20:18:54,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:18:54,683 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;@761a5dcf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:18:54,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-08-31 20:18:54,685 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 20:18:54,685 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:18:54,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:54,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 20:18:54,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:18:54,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:54,690 INFO L85 PathProgramCache]: Analyzing trace with hash 852, now seen corresponding path program 1 times [2023-08-31 20:18:54,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:54,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527885817] [2023-08-31 20:18:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:54,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:54,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:54,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527885817] [2023-08-31 20:18:54,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527885817] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:54,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:54,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 20:18:54,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539738096] [2023-08-31 20:18:54,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:54,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 20:18:54,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 20:18:54,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 20:18:54,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 494 [2023-08-31 20:18:54,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:54,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:54,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 494 [2023-08-31 20:18:54,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:55,286 INFO L130 PetriNetUnfolder]: 140/714 cut-off events. [2023-08-31 20:18:55,287 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:18:55,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 714 events. 140/714 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4052 event pairs, 140 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 1016. Up to 307 conditions per place. [2023-08-31 20:18:55,293 INFO L137 encePairwiseOnDemand]: 480/494 looper letters, 26 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2023-08-31 20:18:55,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 88 transitions, 231 flow [2023-08-31 20:18:55,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 20:18:55,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 20:18:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 572 transitions. [2023-08-31 20:18:55,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2023-08-31 20:18:55,312 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 572 transitions. [2023-08-31 20:18:55,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 572 transitions. [2023-08-31 20:18:55,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:55,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 572 transitions. [2023-08-31 20:18:55,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 286.0) internal successors, (572), 2 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:55,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:55,329 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:55,333 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 207 flow. Second operand 2 states and 572 transitions. [2023-08-31 20:18:55,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 88 transitions, 231 flow [2023-08-31 20:18:55,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:18:55,339 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 178 flow [2023-08-31 20:18:55,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=178, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2023-08-31 20:18:55,346 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-31 20:18:55,346 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 178 flow [2023-08-31 20:18:55,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:55,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:55,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 20:18:55,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:18:55,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:18:55,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:55,358 INFO L85 PathProgramCache]: Analyzing trace with hash 816673469, now seen corresponding path program 1 times [2023-08-31 20:18:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:55,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807191656] [2023-08-31 20:18:55,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:55,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:55,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:55,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807191656] [2023-08-31 20:18:55,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807191656] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:55,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:55,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:18:55,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779729160] [2023-08-31 20:18:55,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:55,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:18:55,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:55,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:18:55,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:18:55,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 494 [2023-08-31 20:18:55,704 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:55,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:55,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 494 [2023-08-31 20:18:55,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:56,088 INFO L130 PetriNetUnfolder]: 154/764 cut-off events. [2023-08-31 20:18:56,088 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:18:56,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 764 events. 154/764 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4378 event pairs, 154 based on Foata normal form. 0/716 useless extension candidates. Maximal degree in co-relation 1101. Up to 335 conditions per place. [2023-08-31 20:18:56,092 INFO L137 encePairwiseOnDemand]: 491/494 looper letters, 26 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-08-31 20:18:56,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 86 transitions, 228 flow [2023-08-31 20:18:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:18:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:18:56,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2023-08-31 20:18:56,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317139001349528 [2023-08-31 20:18:56,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2023-08-31 20:18:56,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2023-08-31 20:18:56,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:56,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2023-08-31 20:18:56,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:56,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:56,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:56,101 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 178 flow. Second operand 3 states and 788 transitions. [2023-08-31 20:18:56,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 86 transitions, 228 flow [2023-08-31 20:18:56,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:18:56,122 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 176 flow [2023-08-31 20:18:56,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2023-08-31 20:18:56,124 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-31 20:18:56,124 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 176 flow [2023-08-31 20:18:56,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:56,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:56,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:56,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:18:56,125 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:18:56,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:56,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1139645560, now seen corresponding path program 1 times [2023-08-31 20:18:56,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:56,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318114645] [2023-08-31 20:18:56,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:56,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:56,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:56,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:56,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318114645] [2023-08-31 20:18:56,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318114645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:56,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:56,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:18:56,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961331921] [2023-08-31 20:18:56,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:56,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:18:56,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:56,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:18:56,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:18:57,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-08-31 20:18:57,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:57,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:57,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-08-31 20:18:57,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:58,352 INFO L130 PetriNetUnfolder]: 503/1856 cut-off events. [2023-08-31 20:18:58,352 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:18:58,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2937 conditions, 1856 events. 503/1856 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12560 event pairs, 61 based on Foata normal form. 0/1747 useless extension candidates. Maximal degree in co-relation 2933. Up to 538 conditions per place. [2023-08-31 20:18:58,359 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 110 selfloop transitions, 38 changer transitions 0/192 dead transitions. [2023-08-31 20:18:58,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 192 transitions, 684 flow [2023-08-31 20:18:58,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:18:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:18:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1416 transitions. [2023-08-31 20:18:58,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777327935222672 [2023-08-31 20:18:58,363 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1416 transitions. [2023-08-31 20:18:58,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1416 transitions. [2023-08-31 20:18:58,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:58,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1416 transitions. [2023-08-31 20:18:58,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:58,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:58,372 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:58,372 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 176 flow. Second operand 6 states and 1416 transitions. [2023-08-31 20:18:58,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 192 transitions, 684 flow [2023-08-31 20:18:58,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 192 transitions, 683 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:18:58,378 INFO L231 Difference]: Finished difference. Result has 100 places, 122 transitions, 433 flow [2023-08-31 20:18:58,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=433, PETRI_PLACES=100, PETRI_TRANSITIONS=122} [2023-08-31 20:18:58,380 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -6 predicate places. [2023-08-31 20:18:58,380 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 122 transitions, 433 flow [2023-08-31 20:18:58,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:58,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:58,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:58,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:18:58,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:18:58,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2128750545, now seen corresponding path program 1 times [2023-08-31 20:18:58,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:58,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604975004] [2023-08-31 20:18:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:58,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:58,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604975004] [2023-08-31 20:18:58,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604975004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:58,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:58,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:18:58,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000466118] [2023-08-31 20:18:58,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:58,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:18:58,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:58,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:18:58,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:18:59,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 494 [2023-08-31 20:18:59,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 122 transitions, 433 flow. Second operand has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:59,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:59,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 494 [2023-08-31 20:18:59,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:00,752 INFO L130 PetriNetUnfolder]: 413/1679 cut-off events. [2023-08-31 20:19:00,753 INFO L131 PetriNetUnfolder]: For 306/319 co-relation queries the response was YES. [2023-08-31 20:19:00,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3089 conditions, 1679 events. 413/1679 cut-off events. For 306/319 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11772 event pairs, 231 based on Foata normal form. 3/1554 useless extension candidates. Maximal degree in co-relation 3081. Up to 758 conditions per place. [2023-08-31 20:19:00,760 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 101 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2023-08-31 20:19:00,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 161 transitions, 731 flow [2023-08-31 20:19:00,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:19:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:19:00,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1380 transitions. [2023-08-31 20:19:00,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46558704453441296 [2023-08-31 20:19:00,765 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1380 transitions. [2023-08-31 20:19:00,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1380 transitions. [2023-08-31 20:19:00,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:00,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1380 transitions. [2023-08-31 20:19:00,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:00,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:00,775 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:00,775 INFO L175 Difference]: Start difference. First operand has 100 places, 122 transitions, 433 flow. Second operand 6 states and 1380 transitions. [2023-08-31 20:19:00,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 161 transitions, 731 flow [2023-08-31 20:19:00,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 161 transitions, 731 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:19:00,784 INFO L231 Difference]: Finished difference. Result has 104 places, 121 transitions, 441 flow [2023-08-31 20:19:00,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=104, PETRI_TRANSITIONS=121} [2023-08-31 20:19:00,786 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -2 predicate places. [2023-08-31 20:19:00,786 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 121 transitions, 441 flow [2023-08-31 20:19:00,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:00,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:00,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:00,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:19:00,787 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:00,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1720171372, now seen corresponding path program 1 times [2023-08-31 20:19:00,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:00,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61551280] [2023-08-31 20:19:00,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:00,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:01,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:01,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:01,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61551280] [2023-08-31 20:19:01,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61551280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:01,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:01,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:19:01,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003273658] [2023-08-31 20:19:01,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:01,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:19:01,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:01,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:19:01,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:19:01,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 494 [2023-08-31 20:19:01,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 121 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:01,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:01,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 494 [2023-08-31 20:19:01,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:02,924 INFO L130 PetriNetUnfolder]: 816/2682 cut-off events. [2023-08-31 20:19:02,924 INFO L131 PetriNetUnfolder]: For 660/672 co-relation queries the response was YES. [2023-08-31 20:19:02,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5284 conditions, 2682 events. 816/2682 cut-off events. For 660/672 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19394 event pairs, 147 based on Foata normal form. 3/2516 useless extension candidates. Maximal degree in co-relation 5275. Up to 1024 conditions per place. [2023-08-31 20:19:02,937 INFO L137 encePairwiseOnDemand]: 473/494 looper letters, 119 selfloop transitions, 71 changer transitions 0/240 dead transitions. [2023-08-31 20:19:02,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 240 transitions, 1251 flow [2023-08-31 20:19:02,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:19:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:19:02,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1395 transitions. [2023-08-31 20:19:02,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4706477732793522 [2023-08-31 20:19:02,943 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1395 transitions. [2023-08-31 20:19:02,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1395 transitions. [2023-08-31 20:19:02,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:02,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1395 transitions. [2023-08-31 20:19:02,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.5) internal successors, (1395), 6 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:02,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:02,976 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:02,976 INFO L175 Difference]: Start difference. First operand has 104 places, 121 transitions, 441 flow. Second operand 6 states and 1395 transitions. [2023-08-31 20:19:02,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 240 transitions, 1251 flow [2023-08-31 20:19:02,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 240 transitions, 1233 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:19:02,985 INFO L231 Difference]: Finished difference. Result has 109 places, 190 transitions, 1089 flow [2023-08-31 20:19:02,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1089, PETRI_PLACES=109, PETRI_TRANSITIONS=190} [2023-08-31 20:19:02,987 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2023-08-31 20:19:02,987 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 190 transitions, 1089 flow [2023-08-31 20:19:02,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:02,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:02,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:02,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:19:02,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:02,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:02,989 INFO L85 PathProgramCache]: Analyzing trace with hash 485984485, now seen corresponding path program 1 times [2023-08-31 20:19:02,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:02,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978053537] [2023-08-31 20:19:02,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:02,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:03,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:03,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978053537] [2023-08-31 20:19:03,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978053537] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:03,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:03,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:19:03,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082350795] [2023-08-31 20:19:03,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:03,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:19:03,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:03,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:19:03,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:19:03,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 494 [2023-08-31 20:19:03,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 190 transitions, 1089 flow. Second operand has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:03,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:03,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 494 [2023-08-31 20:19:03,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:05,244 INFO L130 PetriNetUnfolder]: 1833/4483 cut-off events. [2023-08-31 20:19:05,244 INFO L131 PetriNetUnfolder]: For 3004/3050 co-relation queries the response was YES. [2023-08-31 20:19:05,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11967 conditions, 4483 events. 1833/4483 cut-off events. For 3004/3050 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 30400 event pairs, 1032 based on Foata normal form. 0/4196 useless extension candidates. Maximal degree in co-relation 11954. Up to 3644 conditions per place. [2023-08-31 20:19:05,270 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 205 selfloop transitions, 79 changer transitions 0/304 dead transitions. [2023-08-31 20:19:05,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 304 transitions, 2109 flow [2023-08-31 20:19:05,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:19:05,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:19:05,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2023-08-31 20:19:05,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43690958164642374 [2023-08-31 20:19:05,278 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1295 transitions. [2023-08-31 20:19:05,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1295 transitions. [2023-08-31 20:19:05,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:05,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1295 transitions. [2023-08-31 20:19:05,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:05,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:05,291 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:05,291 INFO L175 Difference]: Start difference. First operand has 109 places, 190 transitions, 1089 flow. Second operand 6 states and 1295 transitions. [2023-08-31 20:19:05,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 304 transitions, 2109 flow [2023-08-31 20:19:05,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 304 transitions, 2109 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:19:05,307 INFO L231 Difference]: Finished difference. Result has 118 places, 264 transitions, 1705 flow [2023-08-31 20:19:05,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1705, PETRI_PLACES=118, PETRI_TRANSITIONS=264} [2023-08-31 20:19:05,310 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-31 20:19:05,310 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 264 transitions, 1705 flow [2023-08-31 20:19:05,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:05,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:05,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:05,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:19:05,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:05,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:05,312 INFO L85 PathProgramCache]: Analyzing trace with hash -196459402, now seen corresponding path program 1 times [2023-08-31 20:19:05,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:05,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707536560] [2023-08-31 20:19:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:05,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:05,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:05,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:05,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707536560] [2023-08-31 20:19:05,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707536560] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:05,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:05,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:19:05,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15737372] [2023-08-31 20:19:05,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:05,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:19:05,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:05,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:19:05,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:19:05,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 494 [2023-08-31 20:19:05,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 264 transitions, 1705 flow. Second operand has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:05,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:05,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 494 [2023-08-31 20:19:05,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:06,017 INFO L130 PetriNetUnfolder]: 729/2736 cut-off events. [2023-08-31 20:19:06,018 INFO L131 PetriNetUnfolder]: For 2230/2297 co-relation queries the response was YES. [2023-08-31 20:19:06,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7165 conditions, 2736 events. 729/2736 cut-off events. For 2230/2297 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 20753 event pairs, 268 based on Foata normal form. 8/2615 useless extension candidates. Maximal degree in co-relation 7147. Up to 1113 conditions per place. [2023-08-31 20:19:06,036 INFO L137 encePairwiseOnDemand]: 491/494 looper letters, 49 selfloop transitions, 1 changer transitions 0/262 dead transitions. [2023-08-31 20:19:06,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 262 transitions, 1801 flow [2023-08-31 20:19:06,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:19:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:19:06,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2023-08-31 20:19:06,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5330634278002699 [2023-08-31 20:19:06,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2023-08-31 20:19:06,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2023-08-31 20:19:06,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:06,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2023-08-31 20:19:06,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:06,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:06,051 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:06,051 INFO L175 Difference]: Start difference. First operand has 118 places, 264 transitions, 1705 flow. Second operand 3 states and 790 transitions. [2023-08-31 20:19:06,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 262 transitions, 1801 flow [2023-08-31 20:19:06,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 262 transitions, 1729 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-31 20:19:06,069 INFO L231 Difference]: Finished difference. Result has 118 places, 262 transitions, 1631 flow [2023-08-31 20:19:06,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1629, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1631, PETRI_PLACES=118, PETRI_TRANSITIONS=262} [2023-08-31 20:19:06,069 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-31 20:19:06,070 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 262 transitions, 1631 flow [2023-08-31 20:19:06,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:06,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:06,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:06,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:19:06,071 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:06,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1183061363, now seen corresponding path program 1 times [2023-08-31 20:19:06,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938555702] [2023-08-31 20:19:06,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:06,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:06,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:06,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:06,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938555702] [2023-08-31 20:19:06,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938555702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:06,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:06,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 20:19:06,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809608642] [2023-08-31 20:19:06,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:06,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:19:06,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:06,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:19:06,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:19:06,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 494 [2023-08-31 20:19:06,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 262 transitions, 1631 flow. Second operand has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:06,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:06,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 494 [2023-08-31 20:19:06,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:07,111 INFO L130 PetriNetUnfolder]: 411/1628 cut-off events. [2023-08-31 20:19:07,111 INFO L131 PetriNetUnfolder]: For 1309/1330 co-relation queries the response was YES. [2023-08-31 20:19:07,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4253 conditions, 1628 events. 411/1628 cut-off events. For 1309/1330 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 11407 event pairs, 101 based on Foata normal form. 14/1581 useless extension candidates. Maximal degree in co-relation 4234. Up to 411 conditions per place. [2023-08-31 20:19:07,125 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 77 selfloop transitions, 6 changer transitions 0/236 dead transitions. [2023-08-31 20:19:07,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 236 transitions, 1511 flow [2023-08-31 20:19:07,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:19:07,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:19:07,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2023-08-31 20:19:07,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607287449392713 [2023-08-31 20:19:07,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2023-08-31 20:19:07,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2023-08-31 20:19:07,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:07,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2023-08-31 20:19:07,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:07,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:07,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:07,133 INFO L175 Difference]: Start difference. First operand has 118 places, 262 transitions, 1631 flow. Second operand 3 states and 831 transitions. [2023-08-31 20:19:07,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 236 transitions, 1511 flow [2023-08-31 20:19:07,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 236 transitions, 1452 flow, removed 29 selfloop flow, removed 1 redundant places. [2023-08-31 20:19:07,144 INFO L231 Difference]: Finished difference. Result has 120 places, 206 transitions, 1170 flow [2023-08-31 20:19:07,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1170, PETRI_PLACES=120, PETRI_TRANSITIONS=206} [2023-08-31 20:19:07,145 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 14 predicate places. [2023-08-31 20:19:07,147 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 206 transitions, 1170 flow [2023-08-31 20:19:07,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:07,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:07,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:07,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:19:07,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:07,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash 393010943, now seen corresponding path program 1 times [2023-08-31 20:19:07,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:07,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181587647] [2023-08-31 20:19:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:07,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:07,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:07,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181587647] [2023-08-31 20:19:07,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181587647] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:07,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:07,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:19:07,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6715927] [2023-08-31 20:19:07,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:07,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:19:07,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:07,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:19:07,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:19:08,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-08-31 20:19:08,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 206 transitions, 1170 flow. Second operand has 6 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:08,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:08,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-08-31 20:19:08,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:09,765 INFO L130 PetriNetUnfolder]: 828/2326 cut-off events. [2023-08-31 20:19:09,765 INFO L131 PetriNetUnfolder]: For 2272/2315 co-relation queries the response was YES. [2023-08-31 20:19:09,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6829 conditions, 2326 events. 828/2326 cut-off events. For 2272/2315 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 15824 event pairs, 101 based on Foata normal form. 66/2330 useless extension candidates. Maximal degree in co-relation 6809. Up to 860 conditions per place. [2023-08-31 20:19:09,777 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 205 selfloop transitions, 121 changer transitions 9/405 dead transitions. [2023-08-31 20:19:09,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 405 transitions, 2903 flow [2023-08-31 20:19:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:19:09,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:19:09,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1442 transitions. [2023-08-31 20:19:09,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4865047233468286 [2023-08-31 20:19:09,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1442 transitions. [2023-08-31 20:19:09,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1442 transitions. [2023-08-31 20:19:09,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:09,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1442 transitions. [2023-08-31 20:19:09,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.33333333333334) internal successors, (1442), 6 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:09,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:09,790 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:09,790 INFO L175 Difference]: Start difference. First operand has 120 places, 206 transitions, 1170 flow. Second operand 6 states and 1442 transitions. [2023-08-31 20:19:09,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 405 transitions, 2903 flow [2023-08-31 20:19:09,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 405 transitions, 2888 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:19:09,804 INFO L231 Difference]: Finished difference. Result has 128 places, 305 transitions, 2513 flow [2023-08-31 20:19:09,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1162, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2513, PETRI_PLACES=128, PETRI_TRANSITIONS=305} [2023-08-31 20:19:09,804 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 22 predicate places. [2023-08-31 20:19:09,805 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 305 transitions, 2513 flow [2023-08-31 20:19:09,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:09,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:09,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:09,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:19:09,806 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:09,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash -765051543, now seen corresponding path program 1 times [2023-08-31 20:19:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:09,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091273566] [2023-08-31 20:19:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:10,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:10,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:10,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091273566] [2023-08-31 20:19:10,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091273566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:10,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:10,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:19:10,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060610744] [2023-08-31 20:19:10,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:10,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:19:10,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:10,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:19:10,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:19:10,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 494 [2023-08-31 20:19:10,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 305 transitions, 2513 flow. Second operand has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:10,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:10,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 494 [2023-08-31 20:19:10,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:11,576 INFO L130 PetriNetUnfolder]: 686/2073 cut-off events. [2023-08-31 20:19:11,577 INFO L131 PetriNetUnfolder]: For 4451/4525 co-relation queries the response was YES. [2023-08-31 20:19:11,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7072 conditions, 2073 events. 686/2073 cut-off events. For 4451/4525 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 14110 event pairs, 151 based on Foata normal form. 26/2052 useless extension candidates. Maximal degree in co-relation 7048. Up to 1038 conditions per place. [2023-08-31 20:19:11,590 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 238 selfloop transitions, 17 changer transitions 0/352 dead transitions. [2023-08-31 20:19:11,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 352 transitions, 3205 flow [2023-08-31 20:19:11,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:19:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:19:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2023-08-31 20:19:11,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46524966261808365 [2023-08-31 20:19:11,595 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1379 transitions. [2023-08-31 20:19:11,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1379 transitions. [2023-08-31 20:19:11,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:11,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1379 transitions. [2023-08-31 20:19:11,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:11,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:11,616 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:11,616 INFO L175 Difference]: Start difference. First operand has 128 places, 305 transitions, 2513 flow. Second operand 6 states and 1379 transitions. [2023-08-31 20:19:11,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 352 transitions, 3205 flow [2023-08-31 20:19:11,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 352 transitions, 3187 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-31 20:19:11,637 INFO L231 Difference]: Finished difference. Result has 132 places, 304 transitions, 2527 flow [2023-08-31 20:19:11,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2527, PETRI_PLACES=132, PETRI_TRANSITIONS=304} [2023-08-31 20:19:11,639 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 26 predicate places. [2023-08-31 20:19:11,639 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 304 transitions, 2527 flow [2023-08-31 20:19:11,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:11,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:11,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:11,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 20:19:11,641 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:11,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:11,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1182460824, now seen corresponding path program 1 times [2023-08-31 20:19:11,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:11,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216768748] [2023-08-31 20:19:11,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:11,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:12,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:12,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:12,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216768748] [2023-08-31 20:19:12,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216768748] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:12,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:12,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:19:12,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005984966] [2023-08-31 20:19:12,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:12,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:19:12,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:12,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:19:12,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:19:12,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 494 [2023-08-31 20:19:12,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 304 transitions, 2527 flow. Second operand has 6 states, 6 states have (on average 193.0) internal successors, (1158), 6 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:12,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:12,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 494 [2023-08-31 20:19:12,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:13,569 INFO L130 PetriNetUnfolder]: 1492/3480 cut-off events. [2023-08-31 20:19:13,570 INFO L131 PetriNetUnfolder]: For 6050/6104 co-relation queries the response was YES. [2023-08-31 20:19:13,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12569 conditions, 3480 events. 1492/3480 cut-off events. For 6050/6104 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 22246 event pairs, 681 based on Foata normal form. 0/3382 useless extension candidates. Maximal degree in co-relation 12544. Up to 3018 conditions per place. [2023-08-31 20:19:13,586 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 303 selfloop transitions, 90 changer transitions 12/421 dead transitions. [2023-08-31 20:19:13,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 421 transitions, 3971 flow [2023-08-31 20:19:13,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:19:13,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:19:13,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2023-08-31 20:19:13,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43690958164642374 [2023-08-31 20:19:13,591 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1295 transitions. [2023-08-31 20:19:13,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1295 transitions. [2023-08-31 20:19:13,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:13,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1295 transitions. [2023-08-31 20:19:13,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:13,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:13,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:13,598 INFO L175 Difference]: Start difference. First operand has 132 places, 304 transitions, 2527 flow. Second operand 6 states and 1295 transitions. [2023-08-31 20:19:13,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 421 transitions, 3971 flow [2023-08-31 20:19:13,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 421 transitions, 3937 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:19:13,622 INFO L231 Difference]: Finished difference. Result has 136 places, 377 transitions, 3269 flow [2023-08-31 20:19:13,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3269, PETRI_PLACES=136, PETRI_TRANSITIONS=377} [2023-08-31 20:19:13,623 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 30 predicate places. [2023-08-31 20:19:13,623 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 377 transitions, 3269 flow [2023-08-31 20:19:13,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.0) internal successors, (1158), 6 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:13,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:13,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:13,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 20:19:13,624 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:13,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:13,624 INFO L85 PathProgramCache]: Analyzing trace with hash -989259866, now seen corresponding path program 1 times [2023-08-31 20:19:13,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:13,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383488934] [2023-08-31 20:19:13,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:13,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:14,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:14,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383488934] [2023-08-31 20:19:14,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383488934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:14,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:14,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 20:19:14,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328088909] [2023-08-31 20:19:14,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:14,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 20:19:14,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:14,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 20:19:14,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-31 20:19:15,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 494 [2023-08-31 20:19:15,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 377 transitions, 3269 flow. Second operand has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:15,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:15,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 494 [2023-08-31 20:19:15,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:17,168 INFO L130 PetriNetUnfolder]: 1395/3330 cut-off events. [2023-08-31 20:19:17,168 INFO L131 PetriNetUnfolder]: For 7110/7189 co-relation queries the response was YES. [2023-08-31 20:19:17,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12847 conditions, 3330 events. 1395/3330 cut-off events. For 7110/7189 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 21809 event pairs, 407 based on Foata normal form. 0/3291 useless extension candidates. Maximal degree in co-relation 12818. Up to 2260 conditions per place. [2023-08-31 20:19:17,182 INFO L137 encePairwiseOnDemand]: 481/494 looper letters, 402 selfloop transitions, 57 changer transitions 14/489 dead transitions. [2023-08-31 20:19:17,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 489 transitions, 4921 flow [2023-08-31 20:19:17,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 20:19:17,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 20:19:17,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1721 transitions. [2023-08-31 20:19:17,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.387089518668466 [2023-08-31 20:19:17,187 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1721 transitions. [2023-08-31 20:19:17,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1721 transitions. [2023-08-31 20:19:17,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:17,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1721 transitions. [2023-08-31 20:19:17,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 191.22222222222223) internal successors, (1721), 9 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:17,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 494.0) internal successors, (4940), 10 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:17,197 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 494.0) internal successors, (4940), 10 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:17,197 INFO L175 Difference]: Start difference. First operand has 136 places, 377 transitions, 3269 flow. Second operand 9 states and 1721 transitions. [2023-08-31 20:19:17,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 489 transitions, 4921 flow [2023-08-31 20:19:17,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 489 transitions, 4761 flow, removed 80 selfloop flow, removed 0 redundant places. [2023-08-31 20:19:17,240 INFO L231 Difference]: Finished difference. Result has 148 places, 385 transitions, 3381 flow [2023-08-31 20:19:17,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=3109, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3381, PETRI_PLACES=148, PETRI_TRANSITIONS=385} [2023-08-31 20:19:17,241 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 42 predicate places. [2023-08-31 20:19:17,242 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 385 transitions, 3381 flow [2023-08-31 20:19:17,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:17,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:17,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:17,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 20:19:17,243 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:17,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:17,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1150444369, now seen corresponding path program 1 times [2023-08-31 20:19:17,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:17,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040574347] [2023-08-31 20:19:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:17,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:18,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:18,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040574347] [2023-08-31 20:19:18,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040574347] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:18,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:18,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:19:18,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675731679] [2023-08-31 20:19:18,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:18,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:19:18,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:18,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:19:18,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:19:19,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-31 20:19:19,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 385 transitions, 3381 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:19,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:19,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-31 20:19:19,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:21,633 INFO L130 PetriNetUnfolder]: 1084/3042 cut-off events. [2023-08-31 20:19:21,633 INFO L131 PetriNetUnfolder]: For 9190/9290 co-relation queries the response was YES. [2023-08-31 20:19:21,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12242 conditions, 3042 events. 1084/3042 cut-off events. For 9190/9290 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 21954 event pairs, 167 based on Foata normal form. 20/3027 useless extension candidates. Maximal degree in co-relation 12208. Up to 1360 conditions per place. [2023-08-31 20:19:21,650 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 303 selfloop transitions, 90 changer transitions 9/522 dead transitions. [2023-08-31 20:19:21,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 522 transitions, 5199 flow [2023-08-31 20:19:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:19:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:19:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2092 transitions. [2023-08-31 20:19:21,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234817813765182 [2023-08-31 20:19:21,658 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2092 transitions. [2023-08-31 20:19:21,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2092 transitions. [2023-08-31 20:19:21,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:21,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2092 transitions. [2023-08-31 20:19:21,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 209.2) internal successors, (2092), 10 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:21,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 494.0) internal successors, (5434), 11 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:21,670 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 494.0) internal successors, (5434), 11 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:21,670 INFO L175 Difference]: Start difference. First operand has 148 places, 385 transitions, 3381 flow. Second operand 10 states and 2092 transitions. [2023-08-31 20:19:21,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 522 transitions, 5199 flow [2023-08-31 20:19:21,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 522 transitions, 5173 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 20:19:21,714 INFO L231 Difference]: Finished difference. Result has 162 places, 436 transitions, 4364 flow [2023-08-31 20:19:21,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=3373, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4364, PETRI_PLACES=162, PETRI_TRANSITIONS=436} [2023-08-31 20:19:21,716 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 56 predicate places. [2023-08-31 20:19:21,716 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 436 transitions, 4364 flow [2023-08-31 20:19:21,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:21,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:21,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:21,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 20:19:21,717 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:21,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash 539406891, now seen corresponding path program 2 times [2023-08-31 20:19:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:21,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204823235] [2023-08-31 20:19:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:21,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204823235] [2023-08-31 20:19:22,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204823235] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:22,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:22,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:19:22,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829856896] [2023-08-31 20:19:22,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:22,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:19:22,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:19:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:19:23,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 494 [2023-08-31 20:19:23,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 436 transitions, 4364 flow. Second operand has 12 states, 12 states have (on average 191.66666666666666) internal successors, (2300), 12 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:23,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:23,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 494 [2023-08-31 20:19:23,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:26,132 INFO L130 PetriNetUnfolder]: 1163/3243 cut-off events. [2023-08-31 20:19:26,132 INFO L131 PetriNetUnfolder]: For 13128/13241 co-relation queries the response was YES. [2023-08-31 20:19:26,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13965 conditions, 3243 events. 1163/3243 cut-off events. For 13128/13241 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 23557 event pairs, 206 based on Foata normal form. 32/3239 useless extension candidates. Maximal degree in co-relation 13924. Up to 1032 conditions per place. [2023-08-31 20:19:26,151 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 344 selfloop transitions, 131 changer transitions 10/604 dead transitions. [2023-08-31 20:19:26,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 604 transitions, 6614 flow [2023-08-31 20:19:26,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-31 20:19:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-31 20:19:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3767 transitions. [2023-08-31 20:19:26,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40134242488813127 [2023-08-31 20:19:26,166 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3767 transitions. [2023-08-31 20:19:26,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3767 transitions. [2023-08-31 20:19:26,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:26,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3767 transitions. [2023-08-31 20:19:26,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 198.26315789473685) internal successors, (3767), 19 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:26,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 494.0) internal successors, (9880), 20 states have internal predecessors, (9880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:26,251 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 494.0) internal successors, (9880), 20 states have internal predecessors, (9880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:26,251 INFO L175 Difference]: Start difference. First operand has 162 places, 436 transitions, 4364 flow. Second operand 19 states and 3767 transitions. [2023-08-31 20:19:26,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 604 transitions, 6614 flow [2023-08-31 20:19:26,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 604 transitions, 6592 flow, removed 11 selfloop flow, removed 0 redundant places. [2023-08-31 20:19:26,314 INFO L231 Difference]: Finished difference. Result has 195 places, 500 transitions, 5455 flow [2023-08-31 20:19:26,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=4356, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5455, PETRI_PLACES=195, PETRI_TRANSITIONS=500} [2023-08-31 20:19:26,315 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 89 predicate places. [2023-08-31 20:19:26,316 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 500 transitions, 5455 flow [2023-08-31 20:19:26,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 191.66666666666666) internal successors, (2300), 12 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:26,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:26,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:26,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 20:19:26,317 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:26,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:26,317 INFO L85 PathProgramCache]: Analyzing trace with hash 918316159, now seen corresponding path program 3 times [2023-08-31 20:19:26,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:26,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829246843] [2023-08-31 20:19:26,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:26,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:27,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:27,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829246843] [2023-08-31 20:19:27,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829246843] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:27,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:27,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:19:27,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990783976] [2023-08-31 20:19:27,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:27,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:19:27,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:27,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:19:27,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:19:28,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-31 20:19:28,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 500 transitions, 5455 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:28,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:28,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-31 20:19:28,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:31,096 INFO L130 PetriNetUnfolder]: 1326/3670 cut-off events. [2023-08-31 20:19:31,096 INFO L131 PetriNetUnfolder]: For 20534/20694 co-relation queries the response was YES. [2023-08-31 20:19:31,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17420 conditions, 3670 events. 1326/3670 cut-off events. For 20534/20694 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 27786 event pairs, 184 based on Foata normal form. 56/3685 useless extension candidates. Maximal degree in co-relation 17364. Up to 1466 conditions per place. [2023-08-31 20:19:31,125 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 381 selfloop transitions, 127 changer transitions 9/638 dead transitions. [2023-08-31 20:19:31,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 638 transitions, 7783 flow [2023-08-31 20:19:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:19:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:19:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2495 transitions. [2023-08-31 20:19:31,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4208839406207827 [2023-08-31 20:19:31,134 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2495 transitions. [2023-08-31 20:19:31,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2495 transitions. [2023-08-31 20:19:31,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:31,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2495 transitions. [2023-08-31 20:19:31,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 207.91666666666666) internal successors, (2495), 12 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:31,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:31,147 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:31,147 INFO L175 Difference]: Start difference. First operand has 195 places, 500 transitions, 5455 flow. Second operand 12 states and 2495 transitions. [2023-08-31 20:19:31,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 638 transitions, 7783 flow [2023-08-31 20:19:31,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 638 transitions, 7743 flow, removed 20 selfloop flow, removed 0 redundant places. [2023-08-31 20:19:31,315 INFO L231 Difference]: Finished difference. Result has 211 places, 548 transitions, 6678 flow [2023-08-31 20:19:31,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=5417, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6678, PETRI_PLACES=211, PETRI_TRANSITIONS=548} [2023-08-31 20:19:31,316 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 105 predicate places. [2023-08-31 20:19:31,316 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 548 transitions, 6678 flow [2023-08-31 20:19:31,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:31,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:31,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:31,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 20:19:31,317 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:31,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1321596577, now seen corresponding path program 4 times [2023-08-31 20:19:31,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:31,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070825142] [2023-08-31 20:19:31,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:31,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:32,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:32,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070825142] [2023-08-31 20:19:32,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070825142] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:32,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:32,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:19:32,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129948900] [2023-08-31 20:19:32,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:32,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:19:32,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:32,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:19:32,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:19:33,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-31 20:19:33,323 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 548 transitions, 6678 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:33,323 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:33,323 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-31 20:19:33,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:35,612 INFO L130 PetriNetUnfolder]: 1508/4174 cut-off events. [2023-08-31 20:19:35,612 INFO L131 PetriNetUnfolder]: For 30156/30336 co-relation queries the response was YES. [2023-08-31 20:19:35,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20929 conditions, 4174 events. 1508/4174 cut-off events. For 30156/30336 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 32774 event pairs, 216 based on Foata normal form. 47/4174 useless extension candidates. Maximal degree in co-relation 20868. Up to 1417 conditions per place. [2023-08-31 20:19:35,641 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 423 selfloop transitions, 171 changer transitions 9/724 dead transitions. [2023-08-31 20:19:35,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 724 transitions, 9958 flow [2023-08-31 20:19:35,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:19:35,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:19:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2904 transitions. [2023-08-31 20:19:35,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4198958935801041 [2023-08-31 20:19:35,646 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2904 transitions. [2023-08-31 20:19:35,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2904 transitions. [2023-08-31 20:19:35,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:35,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2904 transitions. [2023-08-31 20:19:35,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 207.42857142857142) internal successors, (2904), 14 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:35,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 494.0) internal successors, (7410), 15 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:35,659 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 494.0) internal successors, (7410), 15 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:35,660 INFO L175 Difference]: Start difference. First operand has 211 places, 548 transitions, 6678 flow. Second operand 14 states and 2904 transitions. [2023-08-31 20:19:35,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 724 transitions, 9958 flow [2023-08-31 20:19:35,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 724 transitions, 9904 flow, removed 10 selfloop flow, removed 4 redundant places. [2023-08-31 20:19:35,803 INFO L231 Difference]: Finished difference. Result has 230 places, 613 transitions, 8467 flow [2023-08-31 20:19:35,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=6634, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8467, PETRI_PLACES=230, PETRI_TRANSITIONS=613} [2023-08-31 20:19:35,804 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 124 predicate places. [2023-08-31 20:19:35,804 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 613 transitions, 8467 flow [2023-08-31 20:19:35,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:35,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:35,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:35,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 20:19:35,805 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:35,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:35,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1738382545, now seen corresponding path program 5 times [2023-08-31 20:19:35,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:35,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702311973] [2023-08-31 20:19:35,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:35,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:36,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:36,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:36,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702311973] [2023-08-31 20:19:36,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702311973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:36,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:36,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:19:36,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217613371] [2023-08-31 20:19:36,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:36,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:19:36,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:36,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:19:36,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:19:37,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-31 20:19:37,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 613 transitions, 8467 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:37,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:37,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-31 20:19:37,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:40,180 INFO L130 PetriNetUnfolder]: 1652/4567 cut-off events. [2023-08-31 20:19:40,181 INFO L131 PetriNetUnfolder]: For 43040/43276 co-relation queries the response was YES. [2023-08-31 20:19:40,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24228 conditions, 4567 events. 1652/4567 cut-off events. For 43040/43276 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 37112 event pairs, 226 based on Foata normal form. 69/4586 useless extension candidates. Maximal degree in co-relation 24157. Up to 1709 conditions per place. [2023-08-31 20:19:40,215 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 433 selfloop transitions, 197 changer transitions 9/760 dead transitions. [2023-08-31 20:19:40,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 760 transitions, 11554 flow [2023-08-31 20:19:40,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 20:19:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 20:19:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2700 transitions. [2023-08-31 20:19:40,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4204297726564933 [2023-08-31 20:19:40,219 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2700 transitions. [2023-08-31 20:19:40,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2700 transitions. [2023-08-31 20:19:40,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:40,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2700 transitions. [2023-08-31 20:19:40,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 207.69230769230768) internal successors, (2700), 13 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:40,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 494.0) internal successors, (6916), 14 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:40,230 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 494.0) internal successors, (6916), 14 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:40,230 INFO L175 Difference]: Start difference. First operand has 230 places, 613 transitions, 8467 flow. Second operand 13 states and 2700 transitions. [2023-08-31 20:19:40,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 760 transitions, 11554 flow [2023-08-31 20:19:40,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 760 transitions, 11470 flow, removed 40 selfloop flow, removed 1 redundant places. [2023-08-31 20:19:40,400 INFO L231 Difference]: Finished difference. Result has 249 places, 659 transitions, 10191 flow [2023-08-31 20:19:40,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=8383, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10191, PETRI_PLACES=249, PETRI_TRANSITIONS=659} [2023-08-31 20:19:40,402 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 143 predicate places. [2023-08-31 20:19:40,402 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 659 transitions, 10191 flow [2023-08-31 20:19:40,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:40,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:40,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:40,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 20:19:40,403 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:40,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:40,403 INFO L85 PathProgramCache]: Analyzing trace with hash -995187386, now seen corresponding path program 1 times [2023-08-31 20:19:40,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:40,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784252968] [2023-08-31 20:19:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:40,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:41,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:41,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:41,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784252968] [2023-08-31 20:19:41,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784252968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:41,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:41,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:19:41,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448323580] [2023-08-31 20:19:41,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:41,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:19:41,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:41,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:19:41,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:19:42,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-31 20:19:42,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 659 transitions, 10191 flow. Second operand has 10 states, 10 states have (on average 199.3) internal successors, (1993), 10 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:42,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:42,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-31 20:19:42,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:44,433 INFO L130 PetriNetUnfolder]: 1644/4497 cut-off events. [2023-08-31 20:19:44,433 INFO L131 PetriNetUnfolder]: For 53535/53775 co-relation queries the response was YES. [2023-08-31 20:19:44,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25125 conditions, 4497 events. 1644/4497 cut-off events. For 53535/53775 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 36301 event pairs, 164 based on Foata normal form. 71/4525 useless extension candidates. Maximal degree in co-relation 25046. Up to 1110 conditions per place. [2023-08-31 20:19:44,468 INFO L137 encePairwiseOnDemand]: 476/494 looper letters, 406 selfloop transitions, 238 changer transitions 16/781 dead transitions. [2023-08-31 20:19:44,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 781 transitions, 12310 flow [2023-08-31 20:19:44,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-31 20:19:44,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-31 20:19:44,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4326 transitions. [2023-08-31 20:19:44,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41700404858299595 [2023-08-31 20:19:44,473 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4326 transitions. [2023-08-31 20:19:44,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4326 transitions. [2023-08-31 20:19:44,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:44,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4326 transitions. [2023-08-31 20:19:44,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 206.0) internal successors, (4326), 21 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:44,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:44,489 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:44,489 INFO L175 Difference]: Start difference. First operand has 249 places, 659 transitions, 10191 flow. Second operand 21 states and 4326 transitions. [2023-08-31 20:19:44,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 781 transitions, 12310 flow [2023-08-31 20:19:44,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 781 transitions, 12217 flow, removed 41 selfloop flow, removed 2 redundant places. [2023-08-31 20:19:44,652 INFO L231 Difference]: Finished difference. Result has 272 places, 667 transitions, 10934 flow [2023-08-31 20:19:44,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=10098, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10934, PETRI_PLACES=272, PETRI_TRANSITIONS=667} [2023-08-31 20:19:44,653 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 166 predicate places. [2023-08-31 20:19:44,653 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 667 transitions, 10934 flow [2023-08-31 20:19:44,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 199.3) internal successors, (1993), 10 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:44,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:44,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:44,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 20:19:44,654 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:44,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:44,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1577471982, now seen corresponding path program 1 times [2023-08-31 20:19:44,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:44,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786130251] [2023-08-31 20:19:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:44,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:46,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:46,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:46,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786130251] [2023-08-31 20:19:46,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786130251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:46,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:46,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:19:46,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124866250] [2023-08-31 20:19:46,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:46,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:19:46,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:46,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:19:46,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:19:47,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-31 20:19:47,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 667 transitions, 10934 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:47,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:47,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-31 20:19:47,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:50,390 INFO L130 PetriNetUnfolder]: 1859/5399 cut-off events. [2023-08-31 20:19:50,391 INFO L131 PetriNetUnfolder]: For 80262/80543 co-relation queries the response was YES. [2023-08-31 20:19:50,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31298 conditions, 5399 events. 1859/5399 cut-off events. For 80262/80543 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 45821 event pairs, 209 based on Foata normal form. 44/5362 useless extension candidates. Maximal degree in co-relation 31214. Up to 1343 conditions per place. [2023-08-31 20:19:50,432 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 499 selfloop transitions, 169 changer transitions 15/895 dead transitions. [2023-08-31 20:19:50,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 895 transitions, 15552 flow [2023-08-31 20:19:50,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-31 20:19:50,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-31 20:19:50,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4419 transitions. [2023-08-31 20:19:50,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40660655134339346 [2023-08-31 20:19:50,436 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4419 transitions. [2023-08-31 20:19:50,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4419 transitions. [2023-08-31 20:19:50,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:50,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4419 transitions. [2023-08-31 20:19:50,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 200.86363636363637) internal successors, (4419), 22 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:50,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:50,447 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:50,447 INFO L175 Difference]: Start difference. First operand has 272 places, 667 transitions, 10934 flow. Second operand 22 states and 4419 transitions. [2023-08-31 20:19:50,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 895 transitions, 15552 flow [2023-08-31 20:19:50,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 895 transitions, 15122 flow, removed 58 selfloop flow, removed 25 redundant places. [2023-08-31 20:19:50,656 INFO L231 Difference]: Finished difference. Result has 272 places, 737 transitions, 12405 flow [2023-08-31 20:19:50,656 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=10511, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=12405, PETRI_PLACES=272, PETRI_TRANSITIONS=737} [2023-08-31 20:19:50,656 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 166 predicate places. [2023-08-31 20:19:50,656 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 737 transitions, 12405 flow [2023-08-31 20:19:50,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:50,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:50,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:50,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 20:19:50,657 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:50,657 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:50,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1097261804, now seen corresponding path program 2 times [2023-08-31 20:19:50,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:50,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874542142] [2023-08-31 20:19:50,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:50,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:52,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:52,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:52,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874542142] [2023-08-31 20:19:52,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874542142] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:52,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:52,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:19:52,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569808092] [2023-08-31 20:19:52,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:52,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:19:52,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:52,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:19:52,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:19:52,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-31 20:19:52,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 737 transitions, 12405 flow. Second operand has 11 states, 11 states have (on average 196.54545454545453) internal successors, (2162), 11 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:52,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:52,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-31 20:19:52,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:55,450 INFO L130 PetriNetUnfolder]: 2064/5966 cut-off events. [2023-08-31 20:19:55,450 INFO L131 PetriNetUnfolder]: For 88612/88926 co-relation queries the response was YES. [2023-08-31 20:19:55,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34626 conditions, 5966 events. 2064/5966 cut-off events. For 88612/88926 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 51328 event pairs, 206 based on Foata normal form. 57/5939 useless extension candidates. Maximal degree in co-relation 34555. Up to 1501 conditions per place. [2023-08-31 20:19:55,502 INFO L137 encePairwiseOnDemand]: 479/494 looper letters, 550 selfloop transitions, 159 changer transitions 41/962 dead transitions. [2023-08-31 20:19:55,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 962 transitions, 16420 flow [2023-08-31 20:19:55,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-31 20:19:55,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-31 20:19:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4257 transitions. [2023-08-31 20:19:55,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4103528050896472 [2023-08-31 20:19:55,507 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4257 transitions. [2023-08-31 20:19:55,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4257 transitions. [2023-08-31 20:19:55,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:55,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4257 transitions. [2023-08-31 20:19:55,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 202.71428571428572) internal successors, (4257), 21 states have internal predecessors, (4257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:55,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:55,519 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:55,519 INFO L175 Difference]: Start difference. First operand has 272 places, 737 transitions, 12405 flow. Second operand 21 states and 4257 transitions. [2023-08-31 20:19:55,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 962 transitions, 16420 flow [2023-08-31 20:19:55,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 962 transitions, 16125 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-31 20:19:55,758 INFO L231 Difference]: Finished difference. Result has 300 places, 781 transitions, 12915 flow [2023-08-31 20:19:55,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=12144, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=737, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12915, PETRI_PLACES=300, PETRI_TRANSITIONS=781} [2023-08-31 20:19:55,759 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 194 predicate places. [2023-08-31 20:19:55,759 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 781 transitions, 12915 flow [2023-08-31 20:19:55,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 196.54545454545453) internal successors, (2162), 11 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:55,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:55,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:55,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 20:19:55,760 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:19:55,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:55,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1184076250, now seen corresponding path program 3 times [2023-08-31 20:19:55,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:55,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387130486] [2023-08-31 20:19:55,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:55,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:58,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:58,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387130486] [2023-08-31 20:19:58,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387130486] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:58,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:58,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:19:58,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100612270] [2023-08-31 20:19:58,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:58,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:19:58,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:58,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:19:58,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:19:59,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-31 20:19:59,888 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 781 transitions, 12915 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:59,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:59,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-31 20:19:59,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:20:04,166 INFO L130 PetriNetUnfolder]: 2434/6939 cut-off events. [2023-08-31 20:20:04,166 INFO L131 PetriNetUnfolder]: For 108652/109040 co-relation queries the response was YES. [2023-08-31 20:20:04,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41738 conditions, 6939 events. 2434/6939 cut-off events. For 108652/109040 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 61297 event pairs, 265 based on Foata normal form. 71/6911 useless extension candidates. Maximal degree in co-relation 41656. Up to 1826 conditions per place. [2023-08-31 20:20:04,223 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 585 selfloop transitions, 194 changer transitions 16/1007 dead transitions. [2023-08-31 20:20:04,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1007 transitions, 18056 flow [2023-08-31 20:20:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-31 20:20:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-31 20:20:04,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4816 transitions. [2023-08-31 20:20:04,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40620782726045884 [2023-08-31 20:20:04,227 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4816 transitions. [2023-08-31 20:20:04,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4816 transitions. [2023-08-31 20:20:04,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:20:04,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4816 transitions. [2023-08-31 20:20:04,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 200.66666666666666) internal successors, (4816), 24 states have internal predecessors, (4816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:04,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:04,237 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:04,237 INFO L175 Difference]: Start difference. First operand has 300 places, 781 transitions, 12915 flow. Second operand 24 states and 4816 transitions. [2023-08-31 20:20:04,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1007 transitions, 18056 flow [2023-08-31 20:20:04,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1007 transitions, 17863 flow, removed 15 selfloop flow, removed 5 redundant places. [2023-08-31 20:20:04,491 INFO L231 Difference]: Finished difference. Result has 323 places, 846 transitions, 14935 flow [2023-08-31 20:20:04,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=12727, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=14935, PETRI_PLACES=323, PETRI_TRANSITIONS=846} [2023-08-31 20:20:04,492 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 217 predicate places. [2023-08-31 20:20:04,492 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 846 transitions, 14935 flow [2023-08-31 20:20:04,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:04,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:20:04,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:20:04,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 20:20:04,492 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:20:04,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:20:04,493 INFO L85 PathProgramCache]: Analyzing trace with hash 502882784, now seen corresponding path program 1 times [2023-08-31 20:20:04,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:20:04,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121688784] [2023-08-31 20:20:04,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:20:04,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:20:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:20:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:20:05,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:20:05,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121688784] [2023-08-31 20:20:05,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121688784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:20:05,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:20:05,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:20:05,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841769402] [2023-08-31 20:20:05,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:20:05,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:20:05,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:20:05,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:20:05,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:20:06,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 494 [2023-08-31 20:20:06,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 846 transitions, 14935 flow. Second operand has 11 states, 11 states have (on average 173.54545454545453) internal successors, (1909), 11 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:06,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:20:06,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 494 [2023-08-31 20:20:06,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:20:11,824 INFO L130 PetriNetUnfolder]: 4306/9962 cut-off events. [2023-08-31 20:20:11,825 INFO L131 PetriNetUnfolder]: For 126491/126737 co-relation queries the response was YES. [2023-08-31 20:20:11,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58135 conditions, 9962 events. 4306/9962 cut-off events. For 126491/126737 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 81060 event pairs, 1224 based on Foata normal form. 31/9940 useless extension candidates. Maximal degree in co-relation 58049. Up to 2277 conditions per place. [2023-08-31 20:20:11,970 INFO L137 encePairwiseOnDemand]: 470/494 looper letters, 792 selfloop transitions, 216 changer transitions 46/1080 dead transitions. [2023-08-31 20:20:11,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1080 transitions, 19202 flow [2023-08-31 20:20:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:20:11,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:20:11,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2342 transitions. [2023-08-31 20:20:11,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3950742240215924 [2023-08-31 20:20:11,972 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2342 transitions. [2023-08-31 20:20:11,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2342 transitions. [2023-08-31 20:20:11,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:20:11,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2342 transitions. [2023-08-31 20:20:11,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 195.16666666666666) internal successors, (2342), 12 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:11,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:11,978 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:11,979 INFO L175 Difference]: Start difference. First operand has 323 places, 846 transitions, 14935 flow. Second operand 12 states and 2342 transitions. [2023-08-31 20:20:11,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1080 transitions, 19202 flow [2023-08-31 20:20:12,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1080 transitions, 19001 flow, removed 9 selfloop flow, removed 15 redundant places. [2023-08-31 20:20:12,362 INFO L231 Difference]: Finished difference. Result has 323 places, 854 transitions, 15425 flow [2023-08-31 20:20:12,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=14739, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15425, PETRI_PLACES=323, PETRI_TRANSITIONS=854} [2023-08-31 20:20:12,363 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 217 predicate places. [2023-08-31 20:20:12,363 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 854 transitions, 15425 flow [2023-08-31 20:20:12,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.54545454545453) internal successors, (1909), 11 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:12,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:20:12,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:20:12,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-31 20:20:12,364 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:20:12,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:20:12,365 INFO L85 PathProgramCache]: Analyzing trace with hash 747243456, now seen corresponding path program 4 times [2023-08-31 20:20:12,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:20:12,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178490112] [2023-08-31 20:20:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:20:12,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:20:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:20:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:20:14,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:20:14,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178490112] [2023-08-31 20:20:14,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178490112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:20:14,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:20:14,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:20:14,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914393244] [2023-08-31 20:20:14,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:20:14,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:20:14,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:20:14,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:20:14,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:20:15,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-31 20:20:15,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 854 transitions, 15425 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:15,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:20:15,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-31 20:20:15,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:20:20,428 INFO L130 PetriNetUnfolder]: 2815/8003 cut-off events. [2023-08-31 20:20:20,429 INFO L131 PetriNetUnfolder]: For 146467/146942 co-relation queries the response was YES. [2023-08-31 20:20:20,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52289 conditions, 8003 events. 2815/8003 cut-off events. For 146467/146942 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 72800 event pairs, 298 based on Foata normal form. 75/7961 useless extension candidates. Maximal degree in co-relation 52198. Up to 2154 conditions per place. [2023-08-31 20:20:20,504 INFO L137 encePairwiseOnDemand]: 473/494 looper letters, 660 selfloop transitions, 216 changer transitions 16/1108 dead transitions. [2023-08-31 20:20:20,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1108 transitions, 21640 flow [2023-08-31 20:20:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-31 20:20:20,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-31 20:20:20,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4631 transitions. [2023-08-31 20:20:20,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40758669248371765 [2023-08-31 20:20:20,510 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4631 transitions. [2023-08-31 20:20:20,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4631 transitions. [2023-08-31 20:20:20,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:20:20,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4631 transitions. [2023-08-31 20:20:20,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 201.34782608695653) internal successors, (4631), 23 states have internal predecessors, (4631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:20,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 494.0) internal successors, (11856), 24 states have internal predecessors, (11856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:20,524 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 494.0) internal successors, (11856), 24 states have internal predecessors, (11856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:20,524 INFO L175 Difference]: Start difference. First operand has 323 places, 854 transitions, 15425 flow. Second operand 23 states and 4631 transitions. [2023-08-31 20:20:20,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1108 transitions, 21640 flow [2023-08-31 20:20:20,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1108 transitions, 21418 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-31 20:20:20,930 INFO L231 Difference]: Finished difference. Result has 347 places, 934 transitions, 17990 flow [2023-08-31 20:20:20,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=15239, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=17990, PETRI_PLACES=347, PETRI_TRANSITIONS=934} [2023-08-31 20:20:20,931 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 241 predicate places. [2023-08-31 20:20:20,931 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 934 transitions, 17990 flow [2023-08-31 20:20:20,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:20,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:20:20,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:20:20,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-31 20:20:20,932 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:20:20,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:20:20,933 INFO L85 PathProgramCache]: Analyzing trace with hash 471059486, now seen corresponding path program 5 times [2023-08-31 20:20:20,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:20:20,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21848112] [2023-08-31 20:20:20,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:20:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:20:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:20:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:20:22,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:20:22,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21848112] [2023-08-31 20:20:22,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21848112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:20:22,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:20:22,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:20:22,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419194264] [2023-08-31 20:20:22,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:20:22,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:20:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:20:22,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:20:22,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:20:23,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-31 20:20:23,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 934 transitions, 17990 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:23,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:20:23,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-31 20:20:23,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:20:28,085 INFO L130 PetriNetUnfolder]: 3171/8979 cut-off events. [2023-08-31 20:20:28,085 INFO L131 PetriNetUnfolder]: For 178932/179506 co-relation queries the response was YES. [2023-08-31 20:20:28,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59800 conditions, 8979 events. 3171/8979 cut-off events. For 178932/179506 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 83669 event pairs, 312 based on Foata normal form. 108/8959 useless extension candidates. Maximal degree in co-relation 59702. Up to 2465 conditions per place. [2023-08-31 20:20:28,182 INFO L137 encePairwiseOnDemand]: 474/494 looper letters, 718 selfloop transitions, 228 changer transitions 19/1181 dead transitions. [2023-08-31 20:20:28,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 1181 transitions, 24617 flow [2023-08-31 20:20:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-31 20:20:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-31 20:20:28,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4444 transitions. [2023-08-31 20:20:28,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4089068825910931 [2023-08-31 20:20:28,188 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4444 transitions. [2023-08-31 20:20:28,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4444 transitions. [2023-08-31 20:20:28,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:20:28,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4444 transitions. [2023-08-31 20:20:28,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 202.0) internal successors, (4444), 22 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:28,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:28,203 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:28,203 INFO L175 Difference]: Start difference. First operand has 347 places, 934 transitions, 17990 flow. Second operand 22 states and 4444 transitions. [2023-08-31 20:20:28,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 1181 transitions, 24617 flow [2023-08-31 20:20:28,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1181 transitions, 24351 flow, removed 27 selfloop flow, removed 12 redundant places. [2023-08-31 20:20:28,756 INFO L231 Difference]: Finished difference. Result has 364 places, 997 transitions, 20466 flow [2023-08-31 20:20:28,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=17725, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=20466, PETRI_PLACES=364, PETRI_TRANSITIONS=997} [2023-08-31 20:20:28,757 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 258 predicate places. [2023-08-31 20:20:28,758 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 997 transitions, 20466 flow [2023-08-31 20:20:28,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:28,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:20:28,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:20:28,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-31 20:20:28,759 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-31 20:20:28,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:20:28,759 INFO L85 PathProgramCache]: Analyzing trace with hash 745080649, now seen corresponding path program 1 times [2023-08-31 20:20:28,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:20:28,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780152658] [2023-08-31 20:20:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:20:28,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:20:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 20:20:28,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 20:20:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 20:20:28,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 20:20:28,936 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 20:20:28,938 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (36 of 37 remaining) [2023-08-31 20:20:28,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-08-31 20:20:28,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-08-31 20:20:28,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-08-31 20:20:28,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-08-31 20:20:28,943 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-08-31 20:20:28,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-08-31 20:20:28,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-08-31 20:20:28,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-08-31 20:20:28,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-08-31 20:20:28,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-08-31 20:20:28,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-08-31 20:20:28,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-08-31 20:20:28,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-08-31 20:20:28,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-08-31 20:20:28,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-08-31 20:20:28,945 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-08-31 20:20:28,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-08-31 20:20:28,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-08-31 20:20:28,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-08-31 20:20:28,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-08-31 20:20:28,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 37 remaining) [2023-08-31 20:20:28,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-08-31 20:20:28,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-08-31 20:20:28,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-08-31 20:20:28,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-08-31 20:20:28,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-08-31 20:20:28,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-08-31 20:20:28,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-08-31 20:20:28,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-08-31 20:20:28,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-08-31 20:20:28,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-08-31 20:20:28,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-08-31 20:20:28,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-08-31 20:20:28,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-08-31 20:20:28,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-08-31 20:20:28,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-08-31 20:20:28,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-31 20:20:28,950 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:20:28,956 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:20:28,956 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:20:29,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:20:29 BasicIcfg [2023-08-31 20:20:29,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:20:29,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:20:29,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:20:29,010 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:20:29,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:13:12" (3/4) ... [2023-08-31 20:20:29,012 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 20:20:29,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:20:29,013 INFO L158 Benchmark]: Toolchain (without parser) took 438493.44ms. Allocated memory was 73.4MB in the beginning and 3.5GB in the end (delta: 3.4GB). Free memory was 49.4MB in the beginning and 2.3GB in the end (delta: -2.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-08-31 20:20:29,013 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:20:29,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.08ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 48.2MB in the end (delta: 957.0kB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-08-31 20:20:29,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.07ms. Allocated memory is still 73.4MB. Free memory was 48.2MB in the beginning and 44.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 20:20:29,014 INFO L158 Benchmark]: Boogie Preprocessor took 54.83ms. Allocated memory is still 73.4MB. Free memory was 44.7MB in the beginning and 41.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 20:20:29,014 INFO L158 Benchmark]: RCFGBuilder took 720.50ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 41.5MB in the beginning and 44.1MB in the end (delta: -2.6MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-08-31 20:20:29,015 INFO L158 Benchmark]: TraceAbstraction took 436990.83ms. Allocated memory was 88.1MB in the beginning and 3.5GB in the end (delta: 3.4GB). Free memory was 43.7MB in the beginning and 2.3GB in the end (delta: -2.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-08-31 20:20:29,015 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 3.5GB. Free memory is still 2.3GB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:20:29,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.08ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 48.2MB in the end (delta: 957.0kB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.07ms. Allocated memory is still 73.4MB. Free memory was 48.2MB in the beginning and 44.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.83ms. Allocated memory is still 73.4MB. Free memory was 44.7MB in the beginning and 41.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 720.50ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 41.5MB in the beginning and 44.1MB in the end (delta: -2.6MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 436990.83ms. Allocated memory was 88.1MB in the beginning and 3.5GB in the end (delta: 3.4GB). Free memory was 43.7MB in the beginning and 2.3GB in the end (delta: -2.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 3.5GB. Free memory is still 2.3GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 342.3s, 270 PlacesBefore, 106 PlacesAfterwards, 266 TransitionsBefore, 102 TransitionsAfterwards, 7590 CoEnabledTransitionPairs, 10 FixpointIterations, 189 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 227 TotalNumberOfCompositions, 81588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9814, independent: 8026, independent conditional: 0, independent unconditional: 8026, dependent: 1788, dependent conditional: 0, dependent unconditional: 1788, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2667, independent: 2529, independent conditional: 0, independent unconditional: 2529, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9814, independent: 5497, independent conditional: 0, independent unconditional: 5497, dependent: 1650, dependent conditional: 0, dependent unconditional: 1650, unknown: 2667, unknown conditional: 0, unknown unconditional: 2667] , Statistics on independence cache: Total cache size (in pairs): 553, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 102, Negative conditional cache size: 0, Negative unconditional cache size: 102, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1235]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1243] 0 pthread_t t1; [L1244] 0 struct s *p = malloc(sizeof(struct s)); [L1245] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1245] RET 0 init(p,9) [L1246] 0 A = malloc(sizeof(struct s)) [L1247] 0 init(A,3) [L1247] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(A,3) [L1248] EXPR 0 A->next [L1248] 0 A->next = p [L1249] 0 B = malloc(sizeof(struct s)) [L1250] 0 init(B,5) [L1250] CALL 0 init(B,5) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1250] RET 0 init(B,5) [L1251] EXPR 0 B->next [L1251] 0 B->next = p [L1252] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={13:0}] [L1254] EXPR 0 A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1254] 0 p = A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1255] EXPR 0 p->datum VAL [A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p->datum=9, p={-3:0}, t1={13:0}] [L1255] 0 printf("%d\n", p->datum) [L1258] EXPR 0 B->next VAL [A={-2:0}, A_mutex={1:0}, B->next={-3:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1235] EXPR 1 A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1235] EXPR 1 A->next->datum VAL [A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1235] 1 A->next->datum++ VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1258] 0 p = B->next [L1259] 0 p->datum VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}, p->datum=10, p={-3:0}, t1={13:0}] [L1235] 1 A->next->datum++ VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p -> next = ((void *)0) [1229] * C: init(B,5) [1250] * C: p = A->next [1254] * C: p = A->next [1254] * C: A->next = p [1248] * C: B = malloc(sizeof(struct s)) [1249] * C: printf("%d\n", p->datum) [1259] * C: A->next->datum++ [1235] * C: A->next->datum [1235] * C: B->next [1258] * C: B->next [1251] * C: printf("%d\n", p->datum) [1255] * C: A->next = p [1248] * C: A->next->datum [1235] * C: p = A->next [1254] * C: A->next->datum++ [1235] * C: A->next->datum++ [1235] * C: A->next = p [1248] * C: printf("%d\n", p->datum) [1255] * C: A->next [1235] * C: p = B->next [1258] * C: A->next->datum++ [1235] * C: p = A->next [1254] * C: p = B->next [1258] * C: printf("%d\n", p->datum) [1255] * C: B->next = p [1251] * C: A->next [1254] * C: p -> datum = x [1228] * C: A->next->datum [1235] * C: B->next = p [1251] * C: A->next = p [1248] * C: p -> datum = x [1228] * C: A->next [1248] * C: p -> datum = x [1228] * C: p = B->next [1258] * C: p -> datum = x [1228] * C: B->next = p [1251] * C: p -> next = ((void *)0) [1229] * C: init(A,3) [1247] * C: printf("%d\n", p->datum) [1255] * C: p -> next = ((void *)0) [1229] * C: p -> next = ((void *)0) [1229] * C: A = malloc(sizeof(struct s)) [1246] * C: p = B->next [1258] * C: A->next->datum [1235] * C: B->next = p [1251] and C: A->next->datum++ [1235] - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1249]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1250]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1255]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1259]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1252]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 339 locations, 37 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: 436.8s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 71.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 342.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11588 SdHoareTripleChecker+Valid, 48.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8784 mSDsluCounter, 3008 SdHoareTripleChecker+Invalid, 45.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2872 mSDsCounter, 3263 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36741 IncrementalHoareTripleChecker+Invalid, 40004 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3263 mSolverCounterUnsat, 136 mSDtfsCounter, 36741 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20466occurred in iteration=24, InterpolantAutomatonStates: 275, 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, 0.9s SatisfiabilityAnalysisTime, 20.4s InterpolantComputationTime, 841 NumberOfCodeBlocks, 841 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 12618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 20:20:29,096 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE