./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.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/06-symbeq_02-funloop_norace.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 ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:59:08,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:59:08,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:59:08,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:59:08,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:59:08,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:59:08,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:59:08,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:59:08,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:59:08,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:59:08,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:59:08,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:59:08,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:59:08,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:59:08,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:59:08,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:59:08,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:59:08,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:59:08,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:59:08,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:59:08,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:59:08,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:59:08,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:59:08,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:59:08,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:59:08,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:59:08,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:59:08,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:59:08,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:59:08,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:59:08,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:59:08,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:59:08,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:59:08,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:59:08,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:59:08,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:59:08,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:59:08,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:59:08,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:59:08,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:59:08,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:59:08,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:59:08,336 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:59:08,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:59:08,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:59:08,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:59:08,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:59:08,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:59:08,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:59:08,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:59:08,339 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:59:08,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:59:08,340 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:59:08,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:59:08,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:59:08,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:59:08,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:59:08,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:59:08,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:59:08,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:59:08,341 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:59:08,341 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:59:08,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:59:08,341 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:59:08,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:59:08,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:59:08,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:59:08,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:59:08,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:59:08,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:59:08,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:59:08,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:59:08,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:59:08,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:59:08,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:59:08,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:59:08,343 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:59:08,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:59:08,343 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:59:08,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:59:08,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:59:08,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:59:08,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:59:08,618 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:59:08,618 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:59:08,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i [2023-08-31 19:59:09,530 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:59:09,774 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:59:09,776 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_02-funloop_norace.i [2023-08-31 19:59:09,789 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a93fca1/6be0d8d636844f77b9f94628ebfa45f1/FLAG37a032061 [2023-08-31 19:59:09,800 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6a93fca1/6be0d8d636844f77b9f94628ebfa45f1 [2023-08-31 19:59:09,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:59:09,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:59:09,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:59:09,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:59:09,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:59:09,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:59:09" (1/1) ... [2023-08-31 19:59:09,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ccfb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:09, skipping insertion in model container [2023-08-31 19:59:09,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:59:09" (1/1) ... [2023-08-31 19:59:09,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:59:09,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:59:10,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:59:10,176 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:59:10,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:59:10,258 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:59:10,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10 WrapperNode [2023-08-31 19:59:10,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:59:10,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:59:10,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:59:10,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:59:10,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,293 INFO L138 Inliner]: procedures = 262, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2023-08-31 19:59:10,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:59:10,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:59:10,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:59:10,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:59:10,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,311 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:59:10,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:59:10,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:59:10,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:59:10,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (1/1) ... [2023-08-31 19:59:10,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:59:10,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:10,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:59:10,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:59:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:59:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:59:10,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:59:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:59:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:59:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:59:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:59:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:59:10,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:59:10,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:59:10,374 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:59:10,502 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:59:10,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:59:10,667 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:59:10,671 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:59:10,671 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-31 19:59:10,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:59:10 BoogieIcfgContainer [2023-08-31 19:59:10,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:59:10,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:59:10,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:59:10,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:59:10,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:59:09" (1/3) ... [2023-08-31 19:59:10,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e53b087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:59:10, skipping insertion in model container [2023-08-31 19:59:10,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:59:10" (2/3) ... [2023-08-31 19:59:10,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e53b087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:59:10, skipping insertion in model container [2023-08-31 19:59:10,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:59:10" (3/3) ... [2023-08-31 19:59:10,677 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2023-08-31 19:59:10,683 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:59:10,689 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:59:10,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-31 19:59:10,689 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:59:10,761 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:59:10,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 100 transitions, 205 flow [2023-08-31 19:59:10,845 INFO L130 PetriNetUnfolder]: 6/99 cut-off events. [2023-08-31 19:59:10,845 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:10,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 6/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-08-31 19:59:10,849 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 100 transitions, 205 flow [2023-08-31 19:59:10,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 99 transitions, 201 flow [2023-08-31 19:59:10,855 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:59:10,864 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 99 transitions, 201 flow [2023-08-31 19:59:10,871 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 99 transitions, 201 flow [2023-08-31 19:59:10,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 99 transitions, 201 flow [2023-08-31 19:59:10,898 INFO L130 PetriNetUnfolder]: 6/99 cut-off events. [2023-08-31 19:59:10,898 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:10,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 6/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2023-08-31 19:59:10,901 INFO L119 LiptonReduction]: Number of co-enabled transitions 2960 [2023-08-31 19:59:11,961 INFO L134 LiptonReduction]: Checked pairs total: 7860 [2023-08-31 19:59:11,961 INFO L136 LiptonReduction]: Total number of compositions: 62 [2023-08-31 19:59:11,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:59:11,979 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;@c0df7c2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:59:11,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-31 19:59:11,984 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-08-31 19:59:11,985 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:11,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:11,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:11,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:11,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash 169409446, now seen corresponding path program 1 times [2023-08-31 19:59:11,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:11,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826332169] [2023-08-31 19:59:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:12,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:12,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826332169] [2023-08-31 19:59:12,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826332169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:12,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:12,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:59:12,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213723553] [2023-08-31 19:59:12,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:12,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:59:12,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:12,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:59:12,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:59:12,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 162 [2023-08-31 19:59:12,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 40 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:12,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 162 [2023-08-31 19:59:12,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:12,301 INFO L130 PetriNetUnfolder]: 66/249 cut-off events. [2023-08-31 19:59:12,302 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:12,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 249 events. 66/249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1074 event pairs, 49 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 372. Up to 133 conditions per place. [2023-08-31 19:59:12,306 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 19 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2023-08-31 19:59:12,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 41 transitions, 127 flow [2023-08-31 19:59:12,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:59:12,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:59:12,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2023-08-31 19:59:12,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6131687242798354 [2023-08-31 19:59:12,322 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2023-08-31 19:59:12,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2023-08-31 19:59:12,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:12,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2023-08-31 19:59:12,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,337 INFO L175 Difference]: Start difference. First operand has 41 places, 40 transitions, 83 flow. Second operand 3 states and 298 transitions. [2023-08-31 19:59:12,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 41 transitions, 127 flow [2023-08-31 19:59:12,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 41 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:59:12,341 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 94 flow [2023-08-31 19:59:12,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-08-31 19:59:12,345 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-08-31 19:59:12,345 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 94 flow [2023-08-31 19:59:12,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:12,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:12,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:59:12,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:12,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:12,353 INFO L85 PathProgramCache]: Analyzing trace with hash 232269373, now seen corresponding path program 1 times [2023-08-31 19:59:12,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:12,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745180678] [2023-08-31 19:59:12,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:12,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:12,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:12,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:12,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745180678] [2023-08-31 19:59:12,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745180678] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:12,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391162867] [2023-08-31 19:59:12,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:12,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:12,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:12,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:12,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 19:59:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:12,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 19:59:12,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:12,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 19:59:12,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:12,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391162867] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 19:59:12,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 19:59:12,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-31 19:59:12,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647260623] [2023-08-31 19:59:12,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 19:59:12,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 19:59:12,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:12,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 19:59:12,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-31 19:59:12,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 162 [2023-08-31 19:59:12,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 94 flow. Second operand has 7 states, 7 states have (on average 92.71428571428571) internal successors, (649), 7 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:12,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 162 [2023-08-31 19:59:12,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:12,713 INFO L130 PetriNetUnfolder]: 66/252 cut-off events. [2023-08-31 19:59:12,713 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:59:12,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 252 events. 66/252 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1074 event pairs, 49 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 391. Up to 133 conditions per place. [2023-08-31 19:59:12,714 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 19 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2023-08-31 19:59:12,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 154 flow [2023-08-31 19:59:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2023-08-31 19:59:12,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5895061728395061 [2023-08-31 19:59:12,716 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 573 transitions. [2023-08-31 19:59:12,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 573 transitions. [2023-08-31 19:59:12,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:12,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 573 transitions. [2023-08-31 19:59:12,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,720 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,721 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 94 flow. Second operand 6 states and 573 transitions. [2023-08-31 19:59:12,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 154 flow [2023-08-31 19:59:12,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 150 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 19:59:12,722 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 126 flow [2023-08-31 19:59:12,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2023-08-31 19:59:12,722 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 9 predicate places. [2023-08-31 19:59:12,723 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 126 flow [2023-08-31 19:59:12,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.71428571428571) internal successors, (649), 7 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:12,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:12,723 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:12,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:12,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:12,928 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:12,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:12,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1780848282, now seen corresponding path program 2 times [2023-08-31 19:59:12,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:12,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985651043] [2023-08-31 19:59:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:12,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:13,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:13,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985651043] [2023-08-31 19:59:13,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985651043] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:13,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219100584] [2023-08-31 19:59:13,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 19:59:13,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:13,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:13,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:13,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-31 19:59:13,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 19:59:13,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 19:59:13,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2023-08-31 19:59:13,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:13,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 19:59:13,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 19:59:13,228 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 19:59:13,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 19:59:13,258 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-31 19:59:13,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 19:59:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-31 19:59:13,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 19:59:13,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219100584] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:13,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 19:59:13,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 13 [2023-08-31 19:59:13,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093623537] [2023-08-31 19:59:13,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:13,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 19:59:13,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:13,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 19:59:13,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-08-31 19:59:13,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 162 [2023-08-31 19:59:13,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 126 flow. Second operand has 9 states, 9 states have (on average 75.33333333333333) internal successors, (678), 9 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:13,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:13,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 162 [2023-08-31 19:59:13,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:13,819 INFO L130 PetriNetUnfolder]: 435/956 cut-off events. [2023-08-31 19:59:13,820 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 19:59:13,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1857 conditions, 956 events. 435/956 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4417 event pairs, 181 based on Foata normal form. 0/859 useless extension candidates. Maximal degree in co-relation 1824. Up to 382 conditions per place. [2023-08-31 19:59:13,823 INFO L137 encePairwiseOnDemand]: 146/162 looper letters, 109 selfloop transitions, 27 changer transitions 0/144 dead transitions. [2023-08-31 19:59:13,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 144 transitions, 598 flow [2023-08-31 19:59:13,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:59:13,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:59:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 874 transitions. [2023-08-31 19:59:13,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5395061728395062 [2023-08-31 19:59:13,826 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 874 transitions. [2023-08-31 19:59:13,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 874 transitions. [2023-08-31 19:59:13,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:13,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 874 transitions. [2023-08-31 19:59:13,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.4) internal successors, (874), 10 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:13,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 162.0) internal successors, (1782), 11 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:13,830 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 162.0) internal successors, (1782), 11 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:13,830 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 126 flow. Second operand 10 states and 874 transitions. [2023-08-31 19:59:13,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 144 transitions, 598 flow [2023-08-31 19:59:13,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 144 transitions, 584 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-31 19:59:13,833 INFO L231 Difference]: Finished difference. Result has 64 places, 69 transitions, 316 flow [2023-08-31 19:59:13,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=316, PETRI_PLACES=64, PETRI_TRANSITIONS=69} [2023-08-31 19:59:13,833 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 23 predicate places. [2023-08-31 19:59:13,833 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 69 transitions, 316 flow [2023-08-31 19:59:13,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 75.33333333333333) internal successors, (678), 9 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:13,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:13,834 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:13,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:14,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-31 19:59:14,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:14,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:14,041 INFO L85 PathProgramCache]: Analyzing trace with hash 833919780, now seen corresponding path program 1 times [2023-08-31 19:59:14,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:14,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165002941] [2023-08-31 19:59:14,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:14,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:14,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:14,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165002941] [2023-08-31 19:59:14,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165002941] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:14,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221463074] [2023-08-31 19:59:14,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:14,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:14,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:14,143 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:14,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-31 19:59:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:14,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-31 19:59:14,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:14,224 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:14,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 19:59:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:59:14,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221463074] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 19:59:14,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 19:59:14,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-31 19:59:14,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357463695] [2023-08-31 19:59:14,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 19:59:14,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:59:14,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:14,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:59:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:59:14,290 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 162 [2023-08-31 19:59:14,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 69 transitions, 316 flow. Second operand has 13 states, 13 states have (on average 92.38461538461539) internal successors, (1201), 13 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:14,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:14,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 162 [2023-08-31 19:59:14,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:14,383 INFO L130 PetriNetUnfolder]: 219/716 cut-off events. [2023-08-31 19:59:14,383 INFO L131 PetriNetUnfolder]: For 484/488 co-relation queries the response was YES. [2023-08-31 19:59:14,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 716 events. 219/716 cut-off events. For 484/488 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3637 event pairs, 134 based on Foata normal form. 7/680 useless extension candidates. Maximal degree in co-relation 1751. Up to 364 conditions per place. [2023-08-31 19:59:14,386 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 27 selfloop transitions, 11 changer transitions 0/75 dead transitions. [2023-08-31 19:59:14,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 428 flow [2023-08-31 19:59:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 19:59:14,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 19:59:14,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1128 transitions. [2023-08-31 19:59:14,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5802469135802469 [2023-08-31 19:59:14,388 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1128 transitions. [2023-08-31 19:59:14,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1128 transitions. [2023-08-31 19:59:14,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:14,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1128 transitions. [2023-08-31 19:59:14,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:14,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 162.0) internal successors, (2106), 13 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:14,392 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 162.0) internal successors, (2106), 13 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:14,393 INFO L175 Difference]: Start difference. First operand has 64 places, 69 transitions, 316 flow. Second operand 12 states and 1128 transitions. [2023-08-31 19:59:14,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 428 flow [2023-08-31 19:59:14,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 75 transitions, 427 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:59:14,396 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 399 flow [2023-08-31 19:59:14,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=399, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2023-08-31 19:59:14,396 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 39 predicate places. [2023-08-31 19:59:14,396 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 399 flow [2023-08-31 19:59:14,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 92.38461538461539) internal successors, (1201), 13 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:14,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:14,397 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:14,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:14,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:14,597 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:14,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:14,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1776131012, now seen corresponding path program 2 times [2023-08-31 19:59:14,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:14,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372995698] [2023-08-31 19:59:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:14,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:14,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:14,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372995698] [2023-08-31 19:59:14,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372995698] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:14,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:14,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:14,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969713857] [2023-08-31 19:59:14,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:14,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:14,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:14,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:14,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:14,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 162 [2023-08-31 19:59:14,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 399 flow. Second operand has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:14,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:14,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 162 [2023-08-31 19:59:14,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:15,103 INFO L130 PetriNetUnfolder]: 563/1325 cut-off events. [2023-08-31 19:59:15,103 INFO L131 PetriNetUnfolder]: For 1334/1348 co-relation queries the response was YES. [2023-08-31 19:59:15,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3639 conditions, 1325 events. 563/1325 cut-off events. For 1334/1348 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6933 event pairs, 222 based on Foata normal form. 0/1270 useless extension candidates. Maximal degree in co-relation 3557. Up to 846 conditions per place. [2023-08-31 19:59:15,110 INFO L137 encePairwiseOnDemand]: 151/162 looper letters, 98 selfloop transitions, 30 changer transitions 0/141 dead transitions. [2023-08-31 19:59:15,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 141 transitions, 891 flow [2023-08-31 19:59:15,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:15,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2023-08-31 19:59:15,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573045267489712 [2023-08-31 19:59:15,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2023-08-31 19:59:15,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2023-08-31 19:59:15,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:15,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2023-08-31 19:59:15,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,114 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,114 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 399 flow. Second operand 6 states and 557 transitions. [2023-08-31 19:59:15,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 141 transitions, 891 flow [2023-08-31 19:59:15,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 141 transitions, 843 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-31 19:59:15,118 INFO L231 Difference]: Finished difference. Result has 85 places, 100 transitions, 575 flow [2023-08-31 19:59:15,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=575, PETRI_PLACES=85, PETRI_TRANSITIONS=100} [2023-08-31 19:59:15,118 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 44 predicate places. [2023-08-31 19:59:15,119 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 100 transitions, 575 flow [2023-08-31 19:59:15,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:15,119 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:15,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:59:15,119 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:15,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -989019556, now seen corresponding path program 1 times [2023-08-31 19:59:15,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:15,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507472961] [2023-08-31 19:59:15,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:15,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507472961] [2023-08-31 19:59:15,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507472961] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:15,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:15,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:15,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857461894] [2023-08-31 19:59:15,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:15,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:15,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:15,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:15,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:15,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-31 19:59:15,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 100 transitions, 575 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:15,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-31 19:59:15,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:15,665 INFO L130 PetriNetUnfolder]: 889/1879 cut-off events. [2023-08-31 19:59:15,665 INFO L131 PetriNetUnfolder]: For 2601/2615 co-relation queries the response was YES. [2023-08-31 19:59:15,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6269 conditions, 1879 events. 889/1879 cut-off events. For 2601/2615 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 9745 event pairs, 304 based on Foata normal form. 0/1807 useless extension candidates. Maximal degree in co-relation 6207. Up to 1457 conditions per place. [2023-08-31 19:59:15,674 INFO L137 encePairwiseOnDemand]: 147/162 looper letters, 125 selfloop transitions, 57 changer transitions 4/191 dead transitions. [2023-08-31 19:59:15,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 191 transitions, 1361 flow [2023-08-31 19:59:15,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:15,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:15,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-08-31 19:59:15,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-08-31 19:59:15,676 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-08-31 19:59:15,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-08-31 19:59:15,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:15,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-08-31 19:59:15,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,678 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,678 INFO L175 Difference]: Start difference. First operand has 85 places, 100 transitions, 575 flow. Second operand 6 states and 540 transitions. [2023-08-31 19:59:15,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 191 transitions, 1361 flow [2023-08-31 19:59:15,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 191 transitions, 1361 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:15,684 INFO L231 Difference]: Finished difference. Result has 95 places, 151 transitions, 1109 flow [2023-08-31 19:59:15,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1109, PETRI_PLACES=95, PETRI_TRANSITIONS=151} [2023-08-31 19:59:15,685 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 54 predicate places. [2023-08-31 19:59:15,685 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 151 transitions, 1109 flow [2023-08-31 19:59:15,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:15,685 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:15,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:59:15,685 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:15,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:15,686 INFO L85 PathProgramCache]: Analyzing trace with hash -850342576, now seen corresponding path program 1 times [2023-08-31 19:59:15,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:15,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893309326] [2023-08-31 19:59:15,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:15,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:15,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:15,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893309326] [2023-08-31 19:59:15,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893309326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:15,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:15,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:15,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879180303] [2023-08-31 19:59:15,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:15,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:15,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:15,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:15,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:15,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-31 19:59:15,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 151 transitions, 1109 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:15,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:15,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-31 19:59:15,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:16,297 INFO L130 PetriNetUnfolder]: 1092/2266 cut-off events. [2023-08-31 19:59:16,297 INFO L131 PetriNetUnfolder]: For 5792/5824 co-relation queries the response was YES. [2023-08-31 19:59:16,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9012 conditions, 2266 events. 1092/2266 cut-off events. For 5792/5824 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 12105 event pairs, 300 based on Foata normal form. 0/2160 useless extension candidates. Maximal degree in co-relation 8945. Up to 1796 conditions per place. [2023-08-31 19:59:16,309 INFO L137 encePairwiseOnDemand]: 147/162 looper letters, 161 selfloop transitions, 72 changer transitions 0/238 dead transitions. [2023-08-31 19:59:16,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 238 transitions, 2166 flow [2023-08-31 19:59:16,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:16,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:16,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 540 transitions. [2023-08-31 19:59:16,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-08-31 19:59:16,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 540 transitions. [2023-08-31 19:59:16,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 540 transitions. [2023-08-31 19:59:16,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:16,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 540 transitions. [2023-08-31 19:59:16,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.0) internal successors, (540), 6 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:16,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:16,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:16,313 INFO L175 Difference]: Start difference. First operand has 95 places, 151 transitions, 1109 flow. Second operand 6 states and 540 transitions. [2023-08-31 19:59:16,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 238 transitions, 2166 flow [2023-08-31 19:59:16,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 238 transitions, 2066 flow, removed 50 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:16,326 INFO L231 Difference]: Finished difference. Result has 105 places, 205 transitions, 1836 flow [2023-08-31 19:59:16,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1836, PETRI_PLACES=105, PETRI_TRANSITIONS=205} [2023-08-31 19:59:16,326 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 64 predicate places. [2023-08-31 19:59:16,326 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 205 transitions, 1836 flow [2023-08-31 19:59:16,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:16,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:16,327 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:16,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:59:16,327 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:16,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:16,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1274432352, now seen corresponding path program 1 times [2023-08-31 19:59:16,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:16,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604586792] [2023-08-31 19:59:16,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:16,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:16,618 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 19:59:16,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:16,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604586792] [2023-08-31 19:59:16,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604586792] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:16,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780401318] [2023-08-31 19:59:16,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:16,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:16,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:16,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:16,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-31 19:59:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:16,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-31 19:59:16,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:16,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-31 19:59:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:16,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 19:59:16,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780401318] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:16,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 19:59:16,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-31 19:59:16,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88571835] [2023-08-31 19:59:16,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:16,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:16,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:16,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:16,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:59:16,796 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 162 [2023-08-31 19:59:16,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 205 transitions, 1836 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:16,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:16,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 162 [2023-08-31 19:59:16,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:17,270 INFO L130 PetriNetUnfolder]: 1638/3954 cut-off events. [2023-08-31 19:59:17,270 INFO L131 PetriNetUnfolder]: For 14894/15076 co-relation queries the response was YES. [2023-08-31 19:59:17,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16728 conditions, 3954 events. 1638/3954 cut-off events. For 14894/15076 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 27018 event pairs, 186 based on Foata normal form. 12/3889 useless extension candidates. Maximal degree in co-relation 16656. Up to 918 conditions per place. [2023-08-31 19:59:17,296 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 155 selfloop transitions, 12 changer transitions 0/304 dead transitions. [2023-08-31 19:59:17,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 304 transitions, 3303 flow [2023-08-31 19:59:17,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2023-08-31 19:59:17,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5699588477366255 [2023-08-31 19:59:17,298 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2023-08-31 19:59:17,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2023-08-31 19:59:17,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:17,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2023-08-31 19:59:17,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:17,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:17,300 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:17,300 INFO L175 Difference]: Start difference. First operand has 105 places, 205 transitions, 1836 flow. Second operand 6 states and 554 transitions. [2023-08-31 19:59:17,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 304 transitions, 3303 flow [2023-08-31 19:59:17,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 304 transitions, 2973 flow, removed 165 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:17,386 INFO L231 Difference]: Finished difference. Result has 113 places, 215 transitions, 1753 flow [2023-08-31 19:59:17,386 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1634, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1753, PETRI_PLACES=113, PETRI_TRANSITIONS=215} [2023-08-31 19:59:17,386 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 72 predicate places. [2023-08-31 19:59:17,386 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 215 transitions, 1753 flow [2023-08-31 19:59:17,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:17,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:17,387 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:17,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:17,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:17,591 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:17,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:17,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1702390636, now seen corresponding path program 2 times [2023-08-31 19:59:17,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:17,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421376408] [2023-08-31 19:59:17,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:17,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:17,915 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 19:59:17,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:17,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421376408] [2023-08-31 19:59:17,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421376408] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:17,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324408784] [2023-08-31 19:59:17,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 19:59:17,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:17,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:17,917 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:17,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-31 19:59:17,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 19:59:17,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 19:59:17,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-31 19:59:17,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:18,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-31 19:59:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:18,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 19:59:18,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324408784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:18,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 19:59:18,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-31 19:59:18,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529152412] [2023-08-31 19:59:18,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:18,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:18,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:18,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:18,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:59:18,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 162 [2023-08-31 19:59:18,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 215 transitions, 1753 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:18,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:18,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 162 [2023-08-31 19:59:18,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:18,686 INFO L130 PetriNetUnfolder]: 1937/4650 cut-off events. [2023-08-31 19:59:18,686 INFO L131 PetriNetUnfolder]: For 15735/15892 co-relation queries the response was YES. [2023-08-31 19:59:18,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19856 conditions, 4650 events. 1937/4650 cut-off events. For 15735/15892 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 32940 event pairs, 214 based on Foata normal form. 5/4611 useless extension candidates. Maximal degree in co-relation 19779. Up to 1144 conditions per place. [2023-08-31 19:59:18,717 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 143 selfloop transitions, 19 changer transitions 0/299 dead transitions. [2023-08-31 19:59:18,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 299 transitions, 2920 flow [2023-08-31 19:59:18,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:18,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:18,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 551 transitions. [2023-08-31 19:59:18,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5668724279835391 [2023-08-31 19:59:18,718 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 551 transitions. [2023-08-31 19:59:18,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 551 transitions. [2023-08-31 19:59:18,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:18,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 551 transitions. [2023-08-31 19:59:18,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:18,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:18,721 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:18,721 INFO L175 Difference]: Start difference. First operand has 113 places, 215 transitions, 1753 flow. Second operand 6 states and 551 transitions. [2023-08-31 19:59:18,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 299 transitions, 2920 flow [2023-08-31 19:59:18,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 299 transitions, 2919 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:59:18,755 INFO L231 Difference]: Finished difference. Result has 119 places, 224 transitions, 1894 flow [2023-08-31 19:59:18,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1752, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1894, PETRI_PLACES=119, PETRI_TRANSITIONS=224} [2023-08-31 19:59:18,756 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 78 predicate places. [2023-08-31 19:59:18,756 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 224 transitions, 1894 flow [2023-08-31 19:59:18,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:18,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:18,756 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:18,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:18,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:18,965 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:18,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:18,965 INFO L85 PathProgramCache]: Analyzing trace with hash 385579575, now seen corresponding path program 1 times [2023-08-31 19:59:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:18,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376168800] [2023-08-31 19:59:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:18,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:19,355 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 19:59:19,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:19,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376168800] [2023-08-31 19:59:19,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376168800] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:19,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043695770] [2023-08-31 19:59:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:19,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:19,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:19,357 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:19,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-31 19:59:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:19,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-31 19:59:19,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:19,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-31 19:59:19,508 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:19,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 19:59:19,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043695770] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:19,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 19:59:19,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-31 19:59:19,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706686458] [2023-08-31 19:59:19,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:19,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:19,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:19,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:19,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:59:19,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 162 [2023-08-31 19:59:19,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 224 transitions, 1894 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:19,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:19,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 162 [2023-08-31 19:59:19,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:19,991 INFO L130 PetriNetUnfolder]: 1639/3977 cut-off events. [2023-08-31 19:59:19,991 INFO L131 PetriNetUnfolder]: For 14874/15016 co-relation queries the response was YES. [2023-08-31 19:59:20,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17453 conditions, 3977 events. 1639/3977 cut-off events. For 14874/15016 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 27476 event pairs, 178 based on Foata normal form. 14/3951 useless extension candidates. Maximal degree in co-relation 17373. Up to 976 conditions per place. [2023-08-31 19:59:20,015 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 145 selfloop transitions, 22 changer transitions 0/304 dead transitions. [2023-08-31 19:59:20,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 304 transitions, 3049 flow [2023-08-31 19:59:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 19:59:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 19:59:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 642 transitions. [2023-08-31 19:59:20,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661375661375662 [2023-08-31 19:59:20,018 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 642 transitions. [2023-08-31 19:59:20,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 642 transitions. [2023-08-31 19:59:20,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:20,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 642 transitions. [2023-08-31 19:59:20,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.71428571428571) internal successors, (642), 7 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:20,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:20,021 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:20,021 INFO L175 Difference]: Start difference. First operand has 119 places, 224 transitions, 1894 flow. Second operand 7 states and 642 transitions. [2023-08-31 19:59:20,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 304 transitions, 3049 flow [2023-08-31 19:59:20,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 304 transitions, 3035 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-31 19:59:20,053 INFO L231 Difference]: Finished difference. Result has 126 places, 227 transitions, 1984 flow [2023-08-31 19:59:20,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1859, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1984, PETRI_PLACES=126, PETRI_TRANSITIONS=227} [2023-08-31 19:59:20,054 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 85 predicate places. [2023-08-31 19:59:20,054 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 227 transitions, 1984 flow [2023-08-31 19:59:20,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:20,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:20,055 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:20,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:20,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:20,259 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:20,259 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:20,259 INFO L85 PathProgramCache]: Analyzing trace with hash -255637439, now seen corresponding path program 2 times [2023-08-31 19:59:20,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:20,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392903762] [2023-08-31 19:59:20,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:20,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:20,600 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-31 19:59:20,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:20,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392903762] [2023-08-31 19:59:20,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392903762] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:20,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669378762] [2023-08-31 19:59:20,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 19:59:20,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:20,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:20,602 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:20,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-31 19:59:20,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-31 19:59:20,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 19:59:20,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 28 conjunts are in the unsatisfiable core [2023-08-31 19:59:20,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:20,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-31 19:59:20,765 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:20,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-31 19:59:20,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669378762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:20,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-31 19:59:20,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-08-31 19:59:20,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859817793] [2023-08-31 19:59:20,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:20,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:20,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:20,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:20,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:59:20,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 162 [2023-08-31 19:59:20,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 227 transitions, 1984 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:20,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:20,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 162 [2023-08-31 19:59:20,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:21,399 INFO L130 PetriNetUnfolder]: 1586/3889 cut-off events. [2023-08-31 19:59:21,400 INFO L131 PetriNetUnfolder]: For 15479/15665 co-relation queries the response was YES. [2023-08-31 19:59:21,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17115 conditions, 3889 events. 1586/3889 cut-off events. For 15479/15665 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 27806 event pairs, 209 based on Foata normal form. 5/3845 useless extension candidates. Maximal degree in co-relation 17032. Up to 1130 conditions per place. [2023-08-31 19:59:21,423 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 142 selfloop transitions, 17 changer transitions 1/297 dead transitions. [2023-08-31 19:59:21,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 297 transitions, 2958 flow [2023-08-31 19:59:21,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:21,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:21,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 551 transitions. [2023-08-31 19:59:21,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5668724279835391 [2023-08-31 19:59:21,425 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 551 transitions. [2023-08-31 19:59:21,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 551 transitions. [2023-08-31 19:59:21,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:21,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 551 transitions. [2023-08-31 19:59:21,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:21,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:21,428 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:21,428 INFO L175 Difference]: Start difference. First operand has 126 places, 227 transitions, 1984 flow. Second operand 6 states and 551 transitions. [2023-08-31 19:59:21,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 297 transitions, 2958 flow [2023-08-31 19:59:21,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 297 transitions, 2918 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-31 19:59:21,457 INFO L231 Difference]: Finished difference. Result has 130 places, 230 transitions, 2028 flow [2023-08-31 19:59:21,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1905, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2028, PETRI_PLACES=130, PETRI_TRANSITIONS=230} [2023-08-31 19:59:21,457 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 89 predicate places. [2023-08-31 19:59:21,457 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 230 transitions, 2028 flow [2023-08-31 19:59:21,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:21,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:21,458 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:21,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:21,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:21,665 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:21,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:21,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1998645577, now seen corresponding path program 1 times [2023-08-31 19:59:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:21,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274093830] [2023-08-31 19:59:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:21,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-08-31 19:59:21,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:21,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274093830] [2023-08-31 19:59:21,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274093830] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:59:21,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:59:21,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:59:21,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952367663] [2023-08-31 19:59:21,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:59:21,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:59:21,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:21,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:59:21,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:59:21,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 162 [2023-08-31 19:59:21,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 230 transitions, 2028 flow. Second operand has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:21,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:21,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 162 [2023-08-31 19:59:21,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:22,584 INFO L130 PetriNetUnfolder]: 2181/4762 cut-off events. [2023-08-31 19:59:22,585 INFO L131 PetriNetUnfolder]: For 19988/20107 co-relation queries the response was YES. [2023-08-31 19:59:22,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23014 conditions, 4762 events. 2181/4762 cut-off events. For 19988/20107 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 32518 event pairs, 390 based on Foata normal form. 43/4778 useless extension candidates. Maximal degree in co-relation 22929. Up to 3338 conditions per place. [2023-08-31 19:59:22,616 INFO L137 encePairwiseOnDemand]: 151/162 looper letters, 216 selfloop transitions, 84 changer transitions 4/335 dead transitions. [2023-08-31 19:59:22,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 335 transitions, 3818 flow [2023-08-31 19:59:22,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:59:22,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:59:22,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2023-08-31 19:59:22,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573045267489712 [2023-08-31 19:59:22,618 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2023-08-31 19:59:22,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2023-08-31 19:59:22,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:22,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2023-08-31 19:59:22,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:22,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:22,621 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:22,621 INFO L175 Difference]: Start difference. First operand has 130 places, 230 transitions, 2028 flow. Second operand 6 states and 557 transitions. [2023-08-31 19:59:22,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 335 transitions, 3818 flow [2023-08-31 19:59:22,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 335 transitions, 3748 flow, removed 17 selfloop flow, removed 2 redundant places. [2023-08-31 19:59:22,655 INFO L231 Difference]: Finished difference. Result has 138 places, 269 transitions, 2896 flow [2023-08-31 19:59:22,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2006, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2896, PETRI_PLACES=138, PETRI_TRANSITIONS=269} [2023-08-31 19:59:22,655 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 97 predicate places. [2023-08-31 19:59:22,655 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 269 transitions, 2896 flow [2023-08-31 19:59:22,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.0) internal successors, (498), 6 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:22,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:22,656 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:22,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 19:59:22,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:22,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:22,656 INFO L85 PathProgramCache]: Analyzing trace with hash -895649499, now seen corresponding path program 1 times [2023-08-31 19:59:22,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:22,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953337200] [2023-08-31 19:59:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:22,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:23,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:23,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953337200] [2023-08-31 19:59:23,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953337200] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:23,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337087236] [2023-08-31 19:59:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:23,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:23,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:23,125 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:23,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-31 19:59:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:23,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-31 19:59:23,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:23,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 19:59:23,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 19:59:23,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 19:59:23,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 19:59:23,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:23,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:23,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:23,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:23,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-31 19:59:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:23,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 19:59:24,254 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:24,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337087236] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 19:59:24,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 19:59:24,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-31 19:59:24,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682622736] [2023-08-31 19:59:24,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 19:59:24,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-31 19:59:24,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:24,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-31 19:59:24,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=767, Unknown=0, NotChecked=0, Total=930 [2023-08-31 19:59:28,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-08-31 19:59:28,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 269 transitions, 2896 flow. Second operand has 31 states, 31 states have (on average 69.35483870967742) internal successors, (2150), 31 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:28,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:28,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-08-31 19:59:28,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:32,027 INFO L130 PetriNetUnfolder]: 3583/7852 cut-off events. [2023-08-31 19:59:32,027 INFO L131 PetriNetUnfolder]: For 40755/40964 co-relation queries the response was YES. [2023-08-31 19:59:32,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40982 conditions, 7852 events. 3583/7852 cut-off events. For 40755/40964 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 60210 event pairs, 421 based on Foata normal form. 34/7844 useless extension candidates. Maximal degree in co-relation 40894. Up to 2401 conditions per place. [2023-08-31 19:59:32,092 INFO L137 encePairwiseOnDemand]: 144/162 looper letters, 742 selfloop transitions, 155 changer transitions 10/938 dead transitions. [2023-08-31 19:59:32,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 938 transitions, 11687 flow [2023-08-31 19:59:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 19:59:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 19:59:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1446 transitions. [2023-08-31 19:59:32,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49588477366255146 [2023-08-31 19:59:32,095 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1446 transitions. [2023-08-31 19:59:32,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1446 transitions. [2023-08-31 19:59:32,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:32,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1446 transitions. [2023-08-31 19:59:32,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 80.33333333333333) internal successors, (1446), 18 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:32,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 162.0) internal successors, (3078), 19 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:32,101 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 162.0) internal successors, (3078), 19 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:32,101 INFO L175 Difference]: Start difference. First operand has 138 places, 269 transitions, 2896 flow. Second operand 18 states and 1446 transitions. [2023-08-31 19:59:32,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 938 transitions, 11687 flow [2023-08-31 19:59:32,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 938 transitions, 11339 flow, removed 174 selfloop flow, removed 0 redundant places. [2023-08-31 19:59:32,196 INFO L231 Difference]: Finished difference. Result has 168 places, 391 transitions, 5041 flow [2023-08-31 19:59:32,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2756, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5041, PETRI_PLACES=168, PETRI_TRANSITIONS=391} [2023-08-31 19:59:32,197 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 127 predicate places. [2023-08-31 19:59:32,197 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 391 transitions, 5041 flow [2023-08-31 19:59:32,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 69.35483870967742) internal successors, (2150), 31 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:32,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:32,198 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 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 19:59:32,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:32,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-31 19:59:32,406 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:32,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:32,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1026124926, now seen corresponding path program 1 times [2023-08-31 19:59:32,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:32,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768373342] [2023-08-31 19:59:32,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:32,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:32,960 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:32,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:32,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768373342] [2023-08-31 19:59:32,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768373342] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:32,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23019233] [2023-08-31 19:59:32,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:32,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:32,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:32,962 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:32,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-31 19:59:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:33,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-31 19:59:33,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:33,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 19:59:33,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 19:59:33,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 19:59:33,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 19:59:33,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:33,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:33,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:33,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:33,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-31 19:59:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:33,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 19:59:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:34,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23019233] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 19:59:34,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 19:59:34,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-31 19:59:34,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49931339] [2023-08-31 19:59:34,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 19:59:34,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-31 19:59:34,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:59:34,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-31 19:59:34,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2023-08-31 19:59:37,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 162 [2023-08-31 19:59:37,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 391 transitions, 5041 flow. Second operand has 31 states, 31 states have (on average 64.2258064516129) internal successors, (1991), 31 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:37,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:59:37,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 162 [2023-08-31 19:59:37,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:59:41,909 INFO L130 PetriNetUnfolder]: 5101/10638 cut-off events. [2023-08-31 19:59:41,910 INFO L131 PetriNetUnfolder]: For 69030/69171 co-relation queries the response was YES. [2023-08-31 19:59:41,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59252 conditions, 10638 events. 5101/10638 cut-off events. For 69030/69171 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 81824 event pairs, 891 based on Foata normal form. 52/10669 useless extension candidates. Maximal degree in co-relation 59149. Up to 4406 conditions per place. [2023-08-31 19:59:41,993 INFO L137 encePairwiseOnDemand]: 141/162 looper letters, 751 selfloop transitions, 171 changer transitions 10/947 dead transitions. [2023-08-31 19:59:41,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 947 transitions, 12344 flow [2023-08-31 19:59:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 19:59:41,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 19:59:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1286 transitions. [2023-08-31 19:59:41,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46695715323166304 [2023-08-31 19:59:41,997 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1286 transitions. [2023-08-31 19:59:41,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1286 transitions. [2023-08-31 19:59:41,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:59:41,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1286 transitions. [2023-08-31 19:59:41,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 75.6470588235294) internal successors, (1286), 17 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:42,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 162.0) internal successors, (2916), 18 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:42,002 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 162.0) internal successors, (2916), 18 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:42,003 INFO L175 Difference]: Start difference. First operand has 168 places, 391 transitions, 5041 flow. Second operand 17 states and 1286 transitions. [2023-08-31 19:59:42,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 947 transitions, 12344 flow [2023-08-31 19:59:42,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 947 transitions, 12321 flow, removed 11 selfloop flow, removed 1 redundant places. [2023-08-31 19:59:42,200 INFO L231 Difference]: Finished difference. Result has 193 places, 523 transitions, 7490 flow [2023-08-31 19:59:42,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=5018, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7490, PETRI_PLACES=193, PETRI_TRANSITIONS=523} [2023-08-31 19:59:42,200 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 152 predicate places. [2023-08-31 19:59:42,201 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 523 transitions, 7490 flow [2023-08-31 19:59:42,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 64.2258064516129) internal successors, (1991), 31 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:59:42,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:59:42,202 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:59:42,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-31 19:59:42,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-31 19:59:42,406 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 19:59:42,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:59:42,406 INFO L85 PathProgramCache]: Analyzing trace with hash -807798399, now seen corresponding path program 2 times [2023-08-31 19:59:42,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:59:42,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333022309] [2023-08-31 19:59:42,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:59:42,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:59:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:59:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:43,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:59:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333022309] [2023-08-31 19:59:43,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333022309] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 19:59:43,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331172446] [2023-08-31 19:59:43,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 19:59:43,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 19:59:43,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:59:43,157 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 19:59:43,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-31 19:59:43,282 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-31 19:59:43,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 19:59:43,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-31 19:59:43,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 19:59:43,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 19:59:43,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 19:59:43,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 19:59:43,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 19:59:43,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-31 19:59:43,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-31 19:59:43,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-31 19:59:43,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 50 [2023-08-31 19:59:43,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 19:59:43,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-31 19:59:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 19:59:43,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:00:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:00:06,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331172446] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:00:06,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:00:06,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-31 20:00:06,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539022791] [2023-08-31 20:00:06,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:00:06,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-31 20:00:06,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:00:06,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-31 20:00:06,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=870, Unknown=8, NotChecked=0, Total=1056 [2023-08-31 20:00:08,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:12,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:14,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:17,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:21,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:23,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:28,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:30,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:33,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:35,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:38,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:40,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:42,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:45,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:48,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:55,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:00:57,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:00,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:03,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:05,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:09,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:12,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:15,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:17,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:20,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:20,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 162 [2023-08-31 20:01:20,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 523 transitions, 7490 flow. Second operand has 33 states, 33 states have (on average 45.121212121212125) internal successors, (1489), 33 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states 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 20:01:20,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:01:20,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 162 [2023-08-31 20:01:20,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:01:34,336 INFO L130 PetriNetUnfolder]: 10883/21854 cut-off events. [2023-08-31 20:01:34,336 INFO L131 PetriNetUnfolder]: For 173503/173503 co-relation queries the response was YES. [2023-08-31 20:01:34,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129700 conditions, 21854 events. 10883/21854 cut-off events. For 173503/173503 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 175110 event pairs, 1547 based on Foata normal form. 55/21909 useless extension candidates. Maximal degree in co-relation 129586. Up to 4873 conditions per place. [2023-08-31 20:01:34,523 INFO L137 encePairwiseOnDemand]: 144/162 looper letters, 1733 selfloop transitions, 509 changer transitions 22/2264 dead transitions. [2023-08-31 20:01:34,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 2264 transitions, 32585 flow [2023-08-31 20:01:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-31 20:01:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-31 20:01:34,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1836 transitions. [2023-08-31 20:01:34,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2023-08-31 20:01:34,527 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1836 transitions. [2023-08-31 20:01:34,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1836 transitions. [2023-08-31 20:01:34,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:01:34,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1836 transitions. [2023-08-31 20:01:34,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 61.2) internal successors, (1836), 30 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states 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 20:01:34,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 162.0) internal successors, (5022), 31 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states 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 20:01:34,549 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 162.0) internal successors, (5022), 31 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states 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 20:01:34,549 INFO L175 Difference]: Start difference. First operand has 193 places, 523 transitions, 7490 flow. Second operand 30 states and 1836 transitions. [2023-08-31 20:01:34,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 2264 transitions, 32585 flow [2023-08-31 20:01:35,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 2264 transitions, 32299 flow, removed 106 selfloop flow, removed 2 redundant places. [2023-08-31 20:01:35,300 INFO L231 Difference]: Finished difference. Result has 241 places, 904 transitions, 16072 flow [2023-08-31 20:01:35,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=7372, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=16072, PETRI_PLACES=241, PETRI_TRANSITIONS=904} [2023-08-31 20:01:35,301 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 200 predicate places. [2023-08-31 20:01:35,301 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 904 transitions, 16072 flow [2023-08-31 20:01:35,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 45.121212121212125) internal successors, (1489), 33 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states 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 20:01:35,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:01:35,302 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 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 20:01:35,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-08-31 20:01:35,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-31 20:01:35,507 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:01:35,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:01:35,507 INFO L85 PathProgramCache]: Analyzing trace with hash -490880420, now seen corresponding path program 2 times [2023-08-31 20:01:35,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:01:35,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433205478] [2023-08-31 20:01:35,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:01:35,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:01:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:01:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:01:36,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:01:36,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433205478] [2023-08-31 20:01:36,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433205478] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:01:36,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220416138] [2023-08-31 20:01:36,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 20:01:36,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:01:36,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:01:36,064 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:01:36,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-31 20:01:36,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-31 20:01:36,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 20:01:36,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-31 20:01:36,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:01:36,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 20:01:36,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 20:01:36,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 20:01:36,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 20:01:36,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:01:36,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:01:36,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:01:36,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:01:36,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-31 20:01:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:01:36,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:01:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:01:46,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220416138] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:01:46,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:01:46,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-08-31 20:01:46,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235230099] [2023-08-31 20:01:46,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:01:46,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-08-31 20:01:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:01:46,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-08-31 20:01:46,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=741, Unknown=4, NotChecked=0, Total=930 [2023-08-31 20:01:48,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:50,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:52,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:54,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:57,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:01:59,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:01,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:03,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:06,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:08,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:10,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:12,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:14,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:16,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:18,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:20,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:22,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:26,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:28,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:02:28,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 162 [2023-08-31 20:02:28,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 904 transitions, 16072 flow. Second operand has 31 states, 31 states have (on average 43.32258064516129) internal successors, (1343), 31 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states 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 20:02:28,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:02:28,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 162 [2023-08-31 20:02:28,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:02:38,034 INFO L130 PetriNetUnfolder]: 12154/24396 cut-off events. [2023-08-31 20:02:38,035 INFO L131 PetriNetUnfolder]: For 254478/254478 co-relation queries the response was YES. [2023-08-31 20:02:38,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156218 conditions, 24396 events. 12154/24396 cut-off events. For 254478/254478 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 200637 event pairs, 2932 based on Foata normal form. 26/24422 useless extension candidates. Maximal degree in co-relation 156082. Up to 10501 conditions per place. [2023-08-31 20:02:38,277 INFO L137 encePairwiseOnDemand]: 141/162 looper letters, 1149 selfloop transitions, 314 changer transitions 9/1472 dead transitions. [2023-08-31 20:02:38,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 1472 transitions, 25504 flow [2023-08-31 20:02:38,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-31 20:02:38,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-31 20:02:38,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 924 transitions. [2023-08-31 20:02:38,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35648148148148145 [2023-08-31 20:02:38,279 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 924 transitions. [2023-08-31 20:02:38,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 924 transitions. [2023-08-31 20:02:38,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:02:38,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 924 transitions. [2023-08-31 20:02:38,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 57.75) internal successors, (924), 16 states have internal predecessors, (924), 0 states have call successors, (0), 0 states 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 20:02:38,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 162.0) internal successors, (2754), 17 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states 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 20:02:38,283 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 162.0) internal successors, (2754), 17 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states 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 20:02:38,283 INFO L175 Difference]: Start difference. First operand has 241 places, 904 transitions, 16072 flow. Second operand 16 states and 924 transitions. [2023-08-31 20:02:38,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 1472 transitions, 25504 flow [2023-08-31 20:02:39,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 1472 transitions, 25037 flow, removed 106 selfloop flow, removed 6 redundant places. [2023-08-31 20:02:39,760 INFO L231 Difference]: Finished difference. Result has 259 places, 1034 transitions, 18903 flow [2023-08-31 20:02:39,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=15750, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=18903, PETRI_PLACES=259, PETRI_TRANSITIONS=1034} [2023-08-31 20:02:39,761 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 218 predicate places. [2023-08-31 20:02:39,761 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 1034 transitions, 18903 flow [2023-08-31 20:02:39,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 43.32258064516129) internal successors, (1343), 31 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states 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 20:02:39,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:02:39,762 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:02:39,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-31 20:02:39,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-31 20:02:39,962 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:02:39,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:02:39,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1546329922, now seen corresponding path program 1 times [2023-08-31 20:02:39,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:02:39,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124126426] [2023-08-31 20:02:39,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:02:39,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:02:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:02:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:02:40,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:02:40,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124126426] [2023-08-31 20:02:40,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124126426] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:02:40,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148406230] [2023-08-31 20:02:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:02:40,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:02:40,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:02:40,373 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:02:40,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-31 20:02:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:02:40,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 36 conjunts are in the unsatisfiable core [2023-08-31 20:02:40,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:02:40,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 20:02:40,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-31 20:02:40,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-31 20:02:40,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-31 20:02:40,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:02:40,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:02:40,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:02:40,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:02:40,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-31 20:02:40,921 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:02:40,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:02:50,575 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:02:50,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148406230] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:02:50,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:02:50,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-31 20:02:50,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867829698] [2023-08-31 20:02:50,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:02:50,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-31 20:02:50,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:02:50,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-31 20:02:50,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=834, Unknown=0, NotChecked=0, Total=992 [2023-08-31 20:02:56,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 162 [2023-08-31 20:02:56,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 1034 transitions, 18903 flow. Second operand has 32 states, 32 states have (on average 64.21875) internal successors, (2055), 32 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states 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 20:02:56,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:02:56,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 162 [2023-08-31 20:02:56,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:03:09,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:18,817 INFO L130 PetriNetUnfolder]: 11250/23448 cut-off events. [2023-08-31 20:03:18,817 INFO L131 PetriNetUnfolder]: For 278847/279153 co-relation queries the response was YES. [2023-08-31 20:03:19,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156747 conditions, 23448 events. 11250/23448 cut-off events. For 278847/279153 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 197762 event pairs, 2047 based on Foata normal form. 62/23465 useless extension candidates. Maximal degree in co-relation 156602. Up to 5590 conditions per place. [2023-08-31 20:03:19,091 INFO L137 encePairwiseOnDemand]: 140/162 looper letters, 1657 selfloop transitions, 757 changer transitions 12/2465 dead transitions. [2023-08-31 20:03:19,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 2465 transitions, 41703 flow [2023-08-31 20:03:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-08-31 20:03:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-08-31 20:03:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2782 transitions. [2023-08-31 20:03:19,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4770233196159122 [2023-08-31 20:03:19,095 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 2782 transitions. [2023-08-31 20:03:19,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 2782 transitions. [2023-08-31 20:03:19,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:03:19,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 2782 transitions. [2023-08-31 20:03:19,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 77.27777777777777) internal successors, (2782), 36 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states 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 20:03:19,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 162.0) internal successors, (5994), 37 states have internal predecessors, (5994), 0 states have call successors, (0), 0 states 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 20:03:19,103 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 162.0) internal successors, (5994), 37 states have internal predecessors, (5994), 0 states have call successors, (0), 0 states 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 20:03:19,103 INFO L175 Difference]: Start difference. First operand has 259 places, 1034 transitions, 18903 flow. Second operand 36 states and 2782 transitions. [2023-08-31 20:03:19,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 2465 transitions, 41703 flow [2023-08-31 20:03:20,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 2465 transitions, 41333 flow, removed 177 selfloop flow, removed 3 redundant places. [2023-08-31 20:03:20,775 INFO L231 Difference]: Finished difference. Result has 320 places, 1469 transitions, 29304 flow [2023-08-31 20:03:20,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=18741, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1034, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=338, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=29304, PETRI_PLACES=320, PETRI_TRANSITIONS=1469} [2023-08-31 20:03:20,776 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 279 predicate places. [2023-08-31 20:03:20,776 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 1469 transitions, 29304 flow [2023-08-31 20:03:20,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 64.21875) internal successors, (2055), 32 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states 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 20:03:20,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:03:20,777 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 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 20:03:20,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-31 20:03:20,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-31 20:03:20,981 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:03:20,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:03:20,982 INFO L85 PathProgramCache]: Analyzing trace with hash 130996428, now seen corresponding path program 3 times [2023-08-31 20:03:20,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:03:20,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324356277] [2023-08-31 20:03:20,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:03:20,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:03:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:03:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:03:21,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:03:21,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324356277] [2023-08-31 20:03:21,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324356277] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:03:21,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719060070] [2023-08-31 20:03:21,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-31 20:03:21,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:03:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:03:21,390 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:03:21,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-31 20:03:21,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-31 20:03:21,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 20:03:21,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-31 20:03:21,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:03:21,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 20:03:21,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 20:03:21,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 20:03:21,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 20:03:22,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:03:22,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:03:22,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:03:22,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:03:22,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-31 20:03:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:03:22,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:03:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:03:33,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719060070] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:03:33,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:03:33,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-31 20:03:33,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641303865] [2023-08-31 20:03:33,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:03:33,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-31 20:03:33,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:03:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-31 20:03:33,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=814, Unknown=3, NotChecked=0, Total=992 [2023-08-31 20:03:35,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:38,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:40,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:43,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:45,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:47,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:49,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:52,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:54,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:56,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:03:58,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:00,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:04,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:06,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:08,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:10,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:12,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:14,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:16,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:18,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:04:18,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 162 [2023-08-31 20:04:18,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 1469 transitions, 29304 flow. Second operand has 32 states, 32 states have (on average 43.21875) internal successors, (1383), 32 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states 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 20:04:18,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:04:18,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 162 [2023-08-31 20:04:18,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:04:33,713 INFO L130 PetriNetUnfolder]: 15528/31252 cut-off events. [2023-08-31 20:04:33,713 INFO L131 PetriNetUnfolder]: For 466327/466327 co-relation queries the response was YES. [2023-08-31 20:04:34,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227710 conditions, 31252 events. 15528/31252 cut-off events. For 466327/466327 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 265797 event pairs, 3963 based on Foata normal form. 27/31279 useless extension candidates. Maximal degree in co-relation 227536. Up to 17978 conditions per place. [2023-08-31 20:04:34,162 INFO L137 encePairwiseOnDemand]: 140/162 looper letters, 2154 selfloop transitions, 587 changer transitions 95/2836 dead transitions. [2023-08-31 20:04:34,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 2836 transitions, 54029 flow [2023-08-31 20:04:34,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-31 20:04:34,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-31 20:04:34,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1727 transitions. [2023-08-31 20:04:34,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3676032354193274 [2023-08-31 20:04:34,165 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1727 transitions. [2023-08-31 20:04:34,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1727 transitions. [2023-08-31 20:04:34,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:04:34,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1727 transitions. [2023-08-31 20:04:34,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 59.55172413793103) internal successors, (1727), 29 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states 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 20:04:34,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 162.0) internal successors, (4860), 30 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states 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 20:04:34,171 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 162.0) internal successors, (4860), 30 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states 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 20:04:34,171 INFO L175 Difference]: Start difference. First operand has 320 places, 1469 transitions, 29304 flow. Second operand 29 states and 1727 transitions. [2023-08-31 20:04:34,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 2836 transitions, 54029 flow [2023-08-31 20:04:38,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 2836 transitions, 53216 flow, removed 402 selfloop flow, removed 2 redundant places. [2023-08-31 20:04:38,747 INFO L231 Difference]: Finished difference. Result has 365 places, 1726 transitions, 35941 flow [2023-08-31 20:04:38,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=28553, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1040, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=35941, PETRI_PLACES=365, PETRI_TRANSITIONS=1726} [2023-08-31 20:04:38,748 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 324 predicate places. [2023-08-31 20:04:38,748 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 1726 transitions, 35941 flow [2023-08-31 20:04:38,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 43.21875) internal successors, (1383), 32 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states 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 20:04:38,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:04:38,749 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 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 20:04:38,754 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-08-31 20:04:38,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-31 20:04:38,954 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:04:38,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:04:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1009383502, now seen corresponding path program 1 times [2023-08-31 20:04:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:04:38,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226895969] [2023-08-31 20:04:38,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:04:38,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:04:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:04:39,466 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:04:39,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:04:39,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226895969] [2023-08-31 20:04:39,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226895969] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:04:39,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272973964] [2023-08-31 20:04:39,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:04:39,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:04:39,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:04:39,468 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:04:39,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-31 20:04:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:04:39,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-31 20:04:39,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:04:39,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 20:04:39,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 20:04:39,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 20:04:39,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 20:04:40,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:04:40,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:04:40,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:04:40,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:04:40,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-31 20:04:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:04:40,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:04:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:04:40,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272973964] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:04:40,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:04:40,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-31 20:04:40,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61112980] [2023-08-31 20:04:40,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:04:40,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-31 20:04:40,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:04:40,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-31 20:04:40,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=822, Unknown=0, NotChecked=0, Total=992 [2023-08-31 20:04:42,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 162 [2023-08-31 20:04:42,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 1726 transitions, 35941 flow. Second operand has 32 states, 32 states have (on average 64.125) internal successors, (2052), 32 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states 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 20:04:42,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:04:42,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 162 [2023-08-31 20:04:42,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:05:00,862 INFO L130 PetriNetUnfolder]: 16723/34745 cut-off events. [2023-08-31 20:05:00,862 INFO L131 PetriNetUnfolder]: For 604361/604797 co-relation queries the response was YES. [2023-08-31 20:05:01,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266270 conditions, 34745 events. 16723/34745 cut-off events. For 604361/604797 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 310399 event pairs, 3592 based on Foata normal form. 50/34750 useless extension candidates. Maximal degree in co-relation 266077. Up to 16524 conditions per place. [2023-08-31 20:05:01,446 INFO L137 encePairwiseOnDemand]: 140/162 looper letters, 3010 selfloop transitions, 470 changer transitions 127/3612 dead transitions. [2023-08-31 20:05:01,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 3612 transitions, 73559 flow [2023-08-31 20:05:01,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-08-31 20:05:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-08-31 20:05:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2673 transitions. [2023-08-31 20:05:01,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2023-08-31 20:05:01,449 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2673 transitions. [2023-08-31 20:05:01,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2673 transitions. [2023-08-31 20:05:01,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:05:01,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2673 transitions. [2023-08-31 20:05:01,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 78.61764705882354) internal successors, (2673), 34 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states 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 20:05:01,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 162.0) internal successors, (5670), 35 states have internal predecessors, (5670), 0 states have call successors, (0), 0 states 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 20:05:01,456 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 162.0) internal successors, (5670), 35 states have internal predecessors, (5670), 0 states have call successors, (0), 0 states 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 20:05:01,456 INFO L175 Difference]: Start difference. First operand has 365 places, 1726 transitions, 35941 flow. Second operand 34 states and 2673 transitions. [2023-08-31 20:05:01,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 3612 transitions, 73559 flow [2023-08-31 20:05:07,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 3612 transitions, 71776 flow, removed 771 selfloop flow, removed 6 redundant places. [2023-08-31 20:05:07,045 INFO L231 Difference]: Finished difference. Result has 417 places, 2045 transitions, 41711 flow [2023-08-31 20:05:07,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=34527, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=41711, PETRI_PLACES=417, PETRI_TRANSITIONS=2045} [2023-08-31 20:05:07,046 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 376 predicate places. [2023-08-31 20:05:07,046 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 2045 transitions, 41711 flow [2023-08-31 20:05:07,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 64.125) internal successors, (2052), 32 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states 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 20:05:07,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:05:07,047 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 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 20:05:07,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-31 20:05:07,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:05:07,248 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:05:07,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:05:07,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1286276962, now seen corresponding path program 4 times [2023-08-31 20:05:07,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:05:07,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814862075] [2023-08-31 20:05:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:05:07,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:05:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:05:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:05:07,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:05:07,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814862075] [2023-08-31 20:05:07,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814862075] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:05:07,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540213964] [2023-08-31 20:05:07,699 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-31 20:05:07,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:05:07,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:05:07,701 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:05:07,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-31 20:05:07,923 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-31 20:05:07,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 20:05:07,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 48 conjunts are in the unsatisfiable core [2023-08-31 20:05:07,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:05:08,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 20:05:08,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-31 20:05:08,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-08-31 20:05:08,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-08-31 20:05:08,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:05:08,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:05:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:05:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:05:08,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2023-08-31 20:05:08,469 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:05:08,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:05:16,939 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:05:16,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540213964] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:05:16,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:05:16,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-31 20:05:16,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12429730] [2023-08-31 20:05:16,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:05:16,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-31 20:05:16,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:05:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-31 20:05:16,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=812, Unknown=2, NotChecked=0, Total=992 [2023-08-31 20:05:19,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:21,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:23,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:25,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:27,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:31,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:33,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:35,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:38,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:41,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:05:41,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 162 [2023-08-31 20:05:41,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 2045 transitions, 41711 flow. Second operand has 32 states, 32 states have (on average 43.21875) internal successors, (1383), 32 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states 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 20:05:41,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:05:41,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 162 [2023-08-31 20:05:41,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:09,703 INFO L130 PetriNetUnfolder]: 23055/46357 cut-off events. [2023-08-31 20:06:09,703 INFO L131 PetriNetUnfolder]: For 931978/931978 co-relation queries the response was YES. [2023-08-31 20:06:10,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382757 conditions, 46357 events. 23055/46357 cut-off events. For 931978/931978 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 419227 event pairs, 5424 based on Foata normal form. 27/46384 useless extension candidates. Maximal degree in co-relation 382540. Up to 17393 conditions per place. [2023-08-31 20:06:10,905 INFO L137 encePairwiseOnDemand]: 141/162 looper letters, 2754 selfloop transitions, 1046 changer transitions 40/3840 dead transitions. [2023-08-31 20:06:10,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 3840 transitions, 80686 flow [2023-08-31 20:06:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-31 20:06:10,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-31 20:06:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1765 transitions. [2023-08-31 20:06:10,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3631687242798354 [2023-08-31 20:06:10,907 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1765 transitions. [2023-08-31 20:06:10,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1765 transitions. [2023-08-31 20:06:10,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:10,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1765 transitions. [2023-08-31 20:06:10,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 58.833333333333336) internal successors, (1765), 30 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states 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 20:06:10,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 162.0) internal successors, (5022), 31 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states 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 20:06:10,913 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 162.0) internal successors, (5022), 31 states have internal predecessors, (5022), 0 states have call successors, (0), 0 states 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 20:06:10,913 INFO L175 Difference]: Start difference. First operand has 417 places, 2045 transitions, 41711 flow. Second operand 30 states and 1765 transitions. [2023-08-31 20:06:10,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 3840 transitions, 80686 flow [2023-08-31 20:06:22,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 3840 transitions, 79197 flow, removed 744 selfloop flow, removed 1 redundant places. [2023-08-31 20:06:22,942 INFO L231 Difference]: Finished difference. Result has 463 places, 2530 transitions, 55667 flow [2023-08-31 20:06:22,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=40530, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=571, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=55667, PETRI_PLACES=463, PETRI_TRANSITIONS=2530} [2023-08-31 20:06:22,944 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 422 predicate places. [2023-08-31 20:06:22,944 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 2530 transitions, 55667 flow [2023-08-31 20:06:22,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 43.21875) internal successors, (1383), 32 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states 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 20:06:22,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:06:22,945 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 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 20:06:22,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-31 20:06:23,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:06:23,150 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:06:23,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:06:23,150 INFO L85 PathProgramCache]: Analyzing trace with hash -547745439, now seen corresponding path program 1 times [2023-08-31 20:06:23,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:06:23,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101284648] [2023-08-31 20:06:23,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:23,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:06:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:06:23,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:06:23,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101284648] [2023-08-31 20:06:23,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101284648] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:06:23,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938549763] [2023-08-31 20:06:23,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:06:23,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:06:23,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:06:23,797 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:06:23,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-31 20:06:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:06:23,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-31 20:06:23,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:06:24,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 20:06:24,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-31 20:06:24,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-31 20:06:24,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-31 20:06:24,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-31 20:06:24,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-31 20:06:24,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-31 20:06:24,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-31 20:06:24,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:06:24,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-31 20:06:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:06:24,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:06:25,679 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:06:25,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938549763] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:06:25,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:06:25,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 32 [2023-08-31 20:06:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089522279] [2023-08-31 20:06:25,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:06:25,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-08-31 20:06:25,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:06:25,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-08-31 20:06:25,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2023-08-31 20:06:28,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-08-31 20:06:28,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 2530 transitions, 55667 flow. Second operand has 33 states, 33 states have (on average 69.6969696969697) internal successors, (2300), 33 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 20:06:28,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:06:28,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-08-31 20:06:28,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:06:57,423 INFO L130 PetriNetUnfolder]: 18605/40305 cut-off events. [2023-08-31 20:06:57,423 INFO L131 PetriNetUnfolder]: For 1024308/1025351 co-relation queries the response was YES. [2023-08-31 20:06:58,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355554 conditions, 40305 events. 18605/40305 cut-off events. For 1024308/1025351 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 386165 event pairs, 2842 based on Foata normal form. 109/40204 useless extension candidates. Maximal degree in co-relation 355317. Up to 12482 conditions per place. [2023-08-31 20:06:58,489 INFO L137 encePairwiseOnDemand]: 144/162 looper letters, 2517 selfloop transitions, 1148 changer transitions 17/3777 dead transitions. [2023-08-31 20:06:58,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 3777 transitions, 90290 flow [2023-08-31 20:06:58,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-31 20:06:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-31 20:06:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2241 transitions. [2023-08-31 20:06:58,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49404761904761907 [2023-08-31 20:06:58,492 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 2241 transitions. [2023-08-31 20:06:58,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 2241 transitions. [2023-08-31 20:06:58,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:06:58,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 2241 transitions. [2023-08-31 20:06:58,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 80.03571428571429) internal successors, (2241), 28 states have internal predecessors, (2241), 0 states have call successors, (0), 0 states 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 20:06:58,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 162.0) internal successors, (4698), 29 states have internal predecessors, (4698), 0 states have call successors, (0), 0 states 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 20:06:58,498 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 162.0) internal successors, (4698), 29 states have internal predecessors, (4698), 0 states have call successors, (0), 0 states 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 20:06:58,498 INFO L175 Difference]: Start difference. First operand has 463 places, 2530 transitions, 55667 flow. Second operand 28 states and 2241 transitions. [2023-08-31 20:06:58,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 3777 transitions, 90290 flow [2023-08-31 20:07:10,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 3777 transitions, 86294 flow, removed 1562 selfloop flow, removed 8 redundant places. [2023-08-31 20:07:10,978 INFO L231 Difference]: Finished difference. Result has 505 places, 2971 transitions, 68828 flow [2023-08-31 20:07:10,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=52991, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=711, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1698, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=68828, PETRI_PLACES=505, PETRI_TRANSITIONS=2971} [2023-08-31 20:07:10,979 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 464 predicate places. [2023-08-31 20:07:10,979 INFO L495 AbstractCegarLoop]: Abstraction has has 505 places, 2971 transitions, 68828 flow [2023-08-31 20:07:10,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 69.6969696969697) internal successors, (2300), 33 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 20:07:10,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:07:10,980 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 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 20:07:10,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-08-31 20:07:11,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:07:11,183 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:07:11,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:07:11,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1333968473, now seen corresponding path program 2 times [2023-08-31 20:07:11,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:07:11,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013667029] [2023-08-31 20:07:11,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:07:11,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:07:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:07:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:07:11,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:07:11,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013667029] [2023-08-31 20:07:11,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013667029] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:07:11,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978913707] [2023-08-31 20:07:11,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-31 20:07:11,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:07:11,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:07:11,592 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:07:11,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-31 20:07:11,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-31 20:07:11,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 20:07:11,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 36 conjunts are in the unsatisfiable core [2023-08-31 20:07:11,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:07:11,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 20:07:11,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-31 20:07:11,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-31 20:07:12,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-31 20:07:12,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:07:12,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:07:12,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:07:12,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:07:12,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-08-31 20:07:12,098 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:07:12,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:07:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:07:12,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978913707] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 20:07:12,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 20:07:12,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-08-31 20:07:12,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665361724] [2023-08-31 20:07:12,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 20:07:12,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-31 20:07:12,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:07:12,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-31 20:07:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2023-08-31 20:07:16,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-08-31 20:07:16,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 2971 transitions, 68828 flow. Second operand has 32 states, 32 states have (on average 69.75) internal successors, (2232), 32 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states 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 20:07:16,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:07:16,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-08-31 20:07:16,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:07:50,446 INFO L130 PetriNetUnfolder]: 20295/43970 cut-off events. [2023-08-31 20:07:50,446 INFO L131 PetriNetUnfolder]: For 1178066/1179277 co-relation queries the response was YES. [2023-08-31 20:07:51,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396639 conditions, 43970 events. 20295/43970 cut-off events. For 1178066/1179277 co-relation queries the response was YES. Maximal size of possible extension queue 929. Compared 427773 event pairs, 2877 based on Foata normal form. 192/43936 useless extension candidates. Maximal degree in co-relation 396379. Up to 12482 conditions per place. [2023-08-31 20:07:51,817 INFO L137 encePairwiseOnDemand]: 143/162 looper letters, 3478 selfloop transitions, 1406 changer transitions 38/5017 dead transitions. [2023-08-31 20:07:51,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 5017 transitions, 117132 flow [2023-08-31 20:07:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-08-31 20:07:51,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2023-08-31 20:07:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 4857 transitions. [2023-08-31 20:07:51,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48357228195937874 [2023-08-31 20:07:51,821 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 4857 transitions. [2023-08-31 20:07:51,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 4857 transitions. [2023-08-31 20:07:51,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:07:51,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 4857 transitions. [2023-08-31 20:07:51,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 78.33870967741936) internal successors, (4857), 62 states have internal predecessors, (4857), 0 states have call successors, (0), 0 states 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 20:07:51,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 162.0) internal successors, (10206), 63 states have internal predecessors, (10206), 0 states have call successors, (0), 0 states 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 20:07:51,833 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 162.0) internal successors, (10206), 63 states have internal predecessors, (10206), 0 states have call successors, (0), 0 states 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 20:07:51,833 INFO L175 Difference]: Start difference. First operand has 505 places, 2971 transitions, 68828 flow. Second operand 62 states and 4857 transitions. [2023-08-31 20:07:51,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 5017 transitions, 117132 flow [2023-08-31 20:08:08,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 5017 transitions, 114444 flow, removed 1340 selfloop flow, removed 2 redundant places. [2023-08-31 20:08:08,265 INFO L231 Difference]: Finished difference. Result has 607 places, 3435 transitions, 83281 flow [2023-08-31 20:08:08,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=67182, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=963, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1858, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=83281, PETRI_PLACES=607, PETRI_TRANSITIONS=3435} [2023-08-31 20:08:08,267 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 566 predicate places. [2023-08-31 20:08:08,268 INFO L495 AbstractCegarLoop]: Abstraction has has 607 places, 3435 transitions, 83281 flow [2023-08-31 20:08:08,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 69.75) internal successors, (2232), 32 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states 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 20:08:08,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:08:08,268 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 2, 2, 2, 2, 2, 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 20:08:08,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-31 20:08:08,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:08:08,469 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-31 20:08:08,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:08:08,469 INFO L85 PathProgramCache]: Analyzing trace with hash 30699557, now seen corresponding path program 3 times [2023-08-31 20:08:08,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:08:08,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674403486] [2023-08-31 20:08:08,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:08:08,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:08:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:08:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-31 20:08:09,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:08:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674403486] [2023-08-31 20:08:09,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674403486] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 20:08:09,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310929884] [2023-08-31 20:08:09,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-31 20:08:09,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 20:08:09,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:08:09,122 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-31 20:08:09,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-08-31 20:08:09,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-08-31 20:08:09,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-31 20:08:09,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 61 conjunts are in the unsatisfiable core [2023-08-31 20:08:09,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 20:08:09,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-31 20:08:09,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-31 20:08:09,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-31 20:08:09,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-31 20:08:09,483 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-31 20:08:09,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2023-08-31 20:08:09,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2023-08-31 20:08:09,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-08-31 20:08:09,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2023-08-31 20:08:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2023-08-31 20:08:09,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2023-08-31 20:08:09,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-31 20:08:09,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 111 [2023-08-31 20:08:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-08-31 20:08:13,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 20:08:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-08-31 20:08:49,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310929884] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-31 20:08:49,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-31 20:08:49,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11, 11] total 32 [2023-08-31 20:08:49,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126148453] [2023-08-31 20:08:49,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:08:49,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 20:08:49,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:08:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 20:08:49,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=885, Unknown=7, NotChecked=0, Total=1056 [2023-08-31 20:08:51,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:08:53,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:08:56,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:08:58,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:00,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:02,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:04,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:06,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:08,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:10,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:12,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:15,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:17,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:19,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:21,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:23,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:25,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:26,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:28,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:30,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:32,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:34,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:36,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:38,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:40,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:43,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:45,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:47,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:49,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:51,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:53,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:55,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:57,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:09:59,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:01,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:03,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:05,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:07,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:07,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 162 [2023-08-31 20:10:07,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 3435 transitions, 83281 flow. Second operand has 13 states, 13 states have (on average 57.76923076923077) internal successors, (751), 13 states have internal predecessors, (751), 0 states have call successors, (0), 0 states 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 20:10:07,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:10:07,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 162 [2023-08-31 20:10:07,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:10:09,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:14,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:16,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:18,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:20,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:22,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:25,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:27,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:29,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:31,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:33,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:35,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:37,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:39,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:41,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:42,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:48,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:50,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:52,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:54,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:56,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:10:58,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:07,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:08,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:12,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:14,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:16,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:19,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:21,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:24,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:28,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:30,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:32,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:35,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:37,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:39,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:41,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:43,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:45,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:47,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:50,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:52,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:54,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:11:56,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:04,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:06,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:09,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:11,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:13,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:15,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:17,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:19,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:21,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:23,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:26,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:28,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:30,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:32,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:34,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:36,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:38,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:40,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:41,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:44,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:46,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:48,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:50,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:52,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:54,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:56,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:12:58,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:13:00,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-31 20:13:01,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] Killed by 15